A thermal comfort design method for submarine ventilation and air conditioning system

Abstract

The present invention relates to the technical field of ship ventilation and air-conditioning system design, and in particular to a method for designing thermal comfort of submarine ventilation and air-conditioning systems. A method for designing thermal comfort of ventilation and air-conditioning systems suitable for enclosed cabin spaces is provided, which can improve the thermal comfort of personnel living environments on the basis of energy saving and improving energy utilization efficiency; the personnel activity space in the submarine cabin is divided into zones, and different design parameters are adopted for different zones, so as to realize the thermal comfort design of the overall submarine ventilation and air-conditioning system, and while ensuring the thermal comfort of each zone, the energy utilization efficiency is taken into account, and the habitability level of each cabin in the submarine is improved; by establishing a simulation model and performing parameter calculation, the thermal comfort design schemes of each submarine cabin are evaluated and verified, and the submarine ventilation and air-conditioning system is adjusted according to the verification results, so as to improve the accuracy of the thermal comfort design of the submarine ventilation and air-conditioning system.

Description

Technical Field

[0001] The present invention relates to the technical field of ship ventilation and air-conditioning system design, and in particular to a thermal comfort design method for a submarine ventilation and air-conditioning system. Background Art

[0002] The atmospheric environment of submarine compartments is characterized by its closed, comprehensive, and clustered nature. For a long time, the air conditioning system has been limited by the overall layout and energy consumption, resulting in limited control capabilities. As a result, the temperature and humidity inside the compartments have been relatively high for a long time, with the highest temperature in some compartments even exceeding 40°C and the relative humidity exceeding 95%.

[0003] Existing submarine ventilation and air conditioning systems are designed with only temperature and humidity in mind, neglecting thermal comfort. These systems merely meet basic human functional needs and fall far short of comfort requirements. Furthermore, the cabin air quality deteriorates during extended submerged voyages, resulting in a poor user experience.

[0004] Existing thermal comfort evaluations are mostly based on the PMV-PPD index. The PMV (predicted mean vote)-PPD (predicted percent dissatisfied) index is currently the most widely used index for evaluating thermal comfort internationally. However, this index system is only well-suited for uniform steady-state environments and cannot be directly applied to the thermal comfort design of ventilation and air conditioning systems in multi-compartment and multi-functional spaces of submarines. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a thermal comfort design method for a submarine ventilation and air conditioning system, which can improve the thermal comfort of the living environment of personnel inside the submarine while saving energy and improving energy utilization.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A thermal comfort design method for submarine ventilation and air conditioning systems, the specific process is as follows:

[0008] S1. Determine the project overview and design content, specifically the purpose, area, number of personnel, and activity parameters of the submarine's enclosed compartments;

[0009] S2. Based on the purpose, the air-conditioned areas are divided into zones. Specifically, based on the model calculations, and in accordance with the principle of ensuring comfort while considering energy conservation, the activity space of personnel inside the submarine is divided into zones according to the purpose of different spaces in the cabin.

[0010] S3. Determine the design parameters of the ventilation and air conditioning system for each compartment of the submarine according to the zoning. The design parameters specifically include air temperature, radiation temperature, average wind speed, relative humidity, clothing thermal resistance, and activity intensity.

[0011] S4. Determine the air conditioning system scheme, specifically by calculating the cooling and heating loads of each compartment in the submarine based on the design parameters, and then selecting a suitable type of air conditioning equipment.

[0012] S5. Thermal comfort design of submarine ventilation and air conditioning system: Specifically, based on the air supply parameters of the air conditioning system in each compartment of the submarine, computational fluid dynamics is used to simulate the airflow in the compartment. The simulated environmental and personnel parameters are compared with the design parameters to determine the thermal comfort rating of each compartment of the submarine. The design parameters are then adjusted according to the thermal comfort rating to ensure that the thermal comfort rating of each compartment of the submarine is not lower than level two.

[0013] S6. Determine the air supply mode of the submarine's ventilation and air conditioning system. Specifically, based on the adjusted design parameters, determine the air supply speed of the ventilation and air conditioning in each compartment of the submarine. The air supply speed includes low speed, medium speed, and high speed.

[0014] Furthermore, the crew activity space inside the submarine cabin is specifically divided into three areas: the first area is a sleeping and resting area, the second area is a general work area, and the third area is a short-term stay area.

[0015] Furthermore, the general work area specifically refers to the daily work area for personnel, and the short-term stay area specifically refers to the computer room or operating room.

[0016] Furthermore, the thermal comfort rating corresponds to the PMV value. When -0.2≤PMV≤0.2, the thermal comfort rating is Level 1; when -0.5≤PMV≤0.5, the thermal comfort rating is Level 2; and when -0.7≤PMV≤0.7, the thermal comfort rating is Level 3.

[0017] Furthermore, the design parameters are adjusted based on the predicted human thermal sensation values ​​calculated using the Chinese thermal comfort model, thereby increasing the design value of the air temperature.

[0018] Furthermore, the environmental parameters specifically include simulated air temperature, radiation temperature, average wind speed, and relative humidity, while the personnel parameters specifically include simulated clothing thermal resistance and activity intensity.

[0019] Furthermore, the thermal comfort rating is specifically improved by changing air temperature, radiant temperature, clothing thermal resistance, and activity intensity.

[0020] Based on the same inventive concept, the present invention also provides a design device, comprising:

[0021] Memory, on which executable programs are stored;

[0022] A processor is configured to execute the executable program in the memory to implement the steps of the submarine ventilation and air conditioning system thermal comfort design method as described above.

[0023] Based on the same inventive concept, the present invention also provides a storage medium, which stores one or more programs. When the one or more programs are executed by one or more processors, the steps of the thermal comfort design method of the submarine ventilation and air-conditioning system can be implemented as described above.

[0024] Compared with the prior art, the present invention has the following main advantages:

[0025] 1. The submarine's interior space for personnel activities is divided into zones, and different design parameters are adopted for different zones to achieve thermal comfort design for the submarine's overall ventilation and air-conditioning system. While ensuring thermal comfort in each zone, it also takes into account energy efficiency, thus improving the habitability of each compartment in the submarine.

[0026] 2. By establishing a simulation model and performing parameter calculations, the thermal comfort design schemes for each submarine compartment were evaluated and verified, and the submarine ventilation and air-conditioning system was adjusted based on the verification results, thereby improving the accuracy of the thermal comfort design of the submarine ventilation and air-conditioning system. Attached Figure Description

[0027] Figure 1 This is an overall flowchart of the design method of the present invention;

[0028] Figure 2 This is a schematic diagram illustrating the change of PMV with air temperature under the design conditions of an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram showing the change of PMV with air temperature under the second working condition of the embodiment of the present invention;

[0030] Figure 4 The following is a schematic diagram of the change of PMV with radiation temperature under the working condition designed for the embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram illustrating the variation of PMV with radiation temperature under the second working condition of this invention.

[0032] Figure 6 This is a schematic diagram illustrating the variation of PMV with average indoor wind speed under the design conditions of an embodiment of the present invention.

[0033] Figure 7 This is a schematic diagram illustrating the variation of PMV with average indoor wind speed under the second design condition of this invention.

[0034] Figure 8This is a schematic diagram illustrating the change of PMV with relative humidity under the design conditions of an embodiment of the present invention.

[0035] Figure 9 This is a schematic diagram of the change of PMV with relative humidity under the second working condition of the embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram illustrating the change of PMV with clothing thermal resistance under the design conditions of an embodiment of the present invention;

[0037] Figure 11 This is a schematic diagram illustrating the variation of PMV with clothing thermal resistance under design condition two in this embodiment of the invention;

[0038] Figure 12 The following is a schematic diagram of the change of PMV with metabolic rate under the working condition designed for the embodiment of the present invention;

[0039] Figure 13 This is a schematic diagram illustrating the change of PMV with metabolic rate under the second working condition of this invention. DETAILED DESCRIPTION

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0041] It should be noted that, depending on the implementation needs, the various steps / components described in this application can be broken down into more steps / components, or two or more steps / components or parts of the operation of steps / components can be combined into new steps / components to achieve the purpose of this invention.

[0042] During the design process, based on actual needs and relevant design standards, the current environment is divided according to PMV and PPD values. The PMV-PPD index consists of two parts: PMV, which is the predicted average vote value; and PPD, which is the predicted percentage of dissatisfaction.

[0043] The International Organization for Standardization (ISO) 7730-1994 recommends using the PMV-PPD index to describe and evaluate the comfort level of a thermal environment. ISO 7730 recommends that the PPD value of a thermal environment should be less than 10%, meaning a thermal environment in which more than 90% of people feel satisfied is considered comfortable; at this point, the PMV value is between -0.5 and +0.5. In practical applications, the upper limit of the PPD value for a thermally comfortable environment can be relaxed to 20%.

[0044] This invention implements a thermal comfort design method for a submarine ventilation and air conditioning system, which designs for comfort based on the functional zoning of the compartments, taking into account the comfort requirements of different areas.

[0045] like Figure 1 As shown, a thermal comfort design method for a submarine ventilation and air conditioning system according to the present invention specifically includes the following steps:

[0046] The first step is to determine the project overview and design content

[0047] Determine the basic parameters of the submarine's enclosed compartments, such as their purpose, area, number of personnel, and activity levels, as well as the calculated air parameters outside the compartments.

[0048] The second step is to zone the air-conditioned areas according to their intended use.

[0049] Based on model calculations and adhering to the principle of prioritizing comfort over energy conservation, the air conditioning system for the enclosed cabin is designed using a functional zoning approach, taking into account the different uses of the spaces within the cabin.

[0050] This invention divides the crew living space inside the submarine compartment into three areas: the first is a sleeping and resting area; the second is a general working area, which is where personnel perform most of their daily work; and the third is a short-stay area, mainly referring to areas such as the engine room and control room where personnel do not stay frequently. Furthermore, compartments that generate harmful gases should each be equipped with independent air conditioning systems.

[0051] The third step is to determine the design parameters based on the zoning.

[0052] For the sleep rest area, in order to ensure sleep comfort, the wind speed cannot be too high. Therefore, the environment in this area adopts a low wind speed of 0.1m / s and an air and radiation temperature of 27℃.

[0053] For general work areas, where people perform most of their daily work, the model calculates and adopts higher wind speeds and higher air temperatures to reduce air conditioning energy consumption while ensuring comfort.

[0054] For short-stay areas, which mainly refer to areas such as computer rooms and control rooms where people do not stay frequently, high air speed and high temperature can be used to further reduce the energy consumption of air conditioning operation.

[0055] The fourth step is to determine the air conditioning system plan, including calculating the heat load in the cabin and selecting equipment.

[0056] Based on indoor and outdoor environmental parameters, the cooling and heating loads inside the cabin are calculated to select a suitable model of air conditioning equipment. This step of the design is similar to that of traditional air conditioning system design.

[0057] Step 5: Ventilation system design: air supply method and airflow organization calculation

[0058] After determining the air supply parameters for the air conditioning system, computational fluid dynamics (CFD) was used to simulate the airflow within the cabin. The resulting environmental and occupant parameters were then fed into a thermal comfort model to calculate the thermal comfort state at key points within the cabin. Based on the calculated results, the submarine's air supply system was adjusted to optimize the overall thermal comfort level within the cabin.

[0059] For different functional areas of the cabin, low-speed, medium-speed, or high-speed air supply methods are adopted according to their requirements for air supply velocity.

[0060] In the actual thermal comfort design of submarine ventilation and air conditioning systems, PMV values ​​are kept within a certain range based on different requirements. Different PMV ranges correspond to different environmental ratings, with the higher the rating, the more difficult it is to achieve. The PMV value ranges and corresponding thermal comfort ratings in existing specifications are shown in the following table:

[0061]

[0062]

[0063] Among them, the second-level environment is the thermal environment that is usually achieved in air-conditioning design. It can meet the requirements of most people for thermal environment, while also taking into account the difficulty of implementation and the cost of the air-conditioning system; the third level basically meets the human body's needs for thermal environment. Within the range of the third level, some people will feel too hot or too cool. It is generally used in environments with high energy-saving requirements or in some special environments; when it exceeds the PMV range specified by the third level environment, the human body will have obvious hot and cold sensations, and it is generally not recommended for use in actual design.

[0064] Furthermore, taking the summer cooling condition as an example, the environmental and personnel parameters inside the submarine compartment in this embodiment include two design conditions, as detailed in the table below:

[0065]

[0066] Design condition 1: The thermal resistance of cabin personnel's clothing is approximately 0.55 clo, meaning they wear short-sleeved shirts and long pants; the activity intensity is 1.2 mt, meaning they are lightly active; the relative humidity and average indoor air velocity are 50% and 0.1 m / s, respectively; and the air temperature and radiation temperature are generally considered close to the indoor air temperature of 29°C and the radiation temperature of 30°C. At this time, the predicted thermal mean value (PMV) is 1.44.

[0067] Design Condition 2: The thermal resistance of the clothing worn by personnel inside the cabin is approximately 0.55clo, meaning that personnel are wearing short-sleeved shirts and long pants; the activity intensity is 1.2met, meaning that personnel are in a state of light activity; the relative humidity and the average velocity of indoor air are 50% and 0.1m / s, respectively; at the same time, it is generally believed that the air temperature and radiation temperature are close to the indoor air temperature of 26℃. When the radiation temperature is 26℃, the predicted mean thermal sensation value PMV = 0, and the human body's thermal sensation is neutral.

[0068] The human stay time calculated in this implementation model is 60 minutes.

[0069] Based on the predicted thermal sensation (PTS) of the human body calculated according to the Chinese thermal comfort model, the recommended air temperature design range (accurate to 0.5°C) is given, as shown in the following table:

[0070]

[0071] Based on the calculation results in the table above, combined with the definition of thermal comfort level in existing standards and the design characteristics of summer cooling conditions, i.e., the corresponding human thermal sensation value is in the warmer half-zone, such as the thermal sensation value of a Class I environment should be taken from the [0,0.5] half-zone of the interval [0.5,0.5], the design parameters of the ventilation and air conditioning system under summer cooling conditions can be obtained as shown in the table below:

[0072]

[0073] Compared with the design parameters in existing standards, different thermal comfort models are used for calculation. Under the same thermal comfort requirements, the design value of air temperature changes. The air temperature range based on the Chinese model is higher than the temperature range in existing standards. For summer cooling environments, increasing the design temperature of the air conditioning system is beneficial to reducing energy consumption.

[0074] Furthermore, this embodiment divides the cabin's personnel activity space into three areas: the first is a sleeping and resting area; the second is a general work area, i.e., the area where personnel perform most of their daily work; and the third is a short-stay area, mainly referring to areas such as the engine room and control room where personnel do not frequently stay.

[0075] Furthermore, factors affecting human thermal sensation can be divided into two categories: one is environmental parameters, including air temperature, mean radiant temperature, relative humidity, and average wind speed; the other is personnel parameters, including clothing thermal resistance and activity intensity. As these influencing factors change, the indoor air conditioning design parameters should also change accordingly.

[0076] The specific range analysis of the various thermal comfort influencing parameters (air temperature, mean radiant temperature, air velocity, relative humidity, activity intensity, and clothing thermal resistance) in this example is as follows:

[0077] a) Air temperature design range

[0078] Air temperature is the main factor affecting human thermal sensation.

[0079] For design condition 1, Figure 2 As can be seen, the slope of the curve decreases significantly after the air temperature exceeds 30℃, indicating that the impact of rising air temperature on PMV weakens. Due to the high indoor radiant temperature, human thermal perception only returns to within ±0.5 when the indoor air temperature drops to around 23℃. Therefore, for design condition one, excessively high indoor temperatures will significantly cause thermal discomfort for humans.

[0080] For the second design condition, if Figure 3 As shown, if the PMV is required to be within a relatively comfortable range of ±0.5, the air temperature inside the cabin should be between 24°C and 28°C, assuming other parameters remain unchanged.

[0081] Furthermore, changing the air temperature can keep the human body's thermal comfort within a design requirement range. The design conditions of the submarine ventilation and air conditioning system obtained by changing the air temperature in this example are shown in the table below:

[0082]

[0083]

[0084] b) Radiation temperature design range

[0085] Radiant temperature also has a significant impact on human thermal sensation. Considering the difference in air temperature between the two design conditions, the calculation range of radiant temperature in this example is from 26℃ to 40℃ (design condition one) and 35℃ (design condition two). The effect of changes in radiant temperature on human thermal sensation is similar to that of air temperature.

[0086] from Figures 4-5 As can be seen, under the condition that other conditions remain unchanged, for design condition one, when the radiant temperature rises above 30℃, its effect on thermal sensation is slightly weakened; while for design condition two, when the radiant temperature exceeds 30.5℃, the PMV value exceeds the positive 0.5 limit.

[0087] Furthermore, changing the radiant temperature is also an important means of effectively regulating human thermal sensation, and the radiant temperature must be higher than the air temperature. Therefore, this example uses the method of increasing the radiant temperature to increase the PMV value.

[0088] For working condition 1, due to the high air temperature, changing the radiation temperature within a reasonable range cannot achieve a comfortable ambient temperature. For design working condition 2, the design working conditions of the submarine ventilation and air conditioning system when changing the radiation temperature in this example are shown in the following table:

[0089]

[0090]

[0091] c) Average wind speed design range

[0092] When the temperature in the cabin is constant, changing the wind speed is an important means to affect the thermal sensation of the human body. Figures 6-7 It can be seen that for design condition 1, when the wind speed is less than 0.2 m / s, the downward slope of thermal sensation is significantly greater than that when the wind speed is greater than 0.2 m / s; since the design temperature of design condition 1 is higher, the calculation range of wind speed is greater than that of design condition 2.

[0093] For design condition 2, when the wind speed is less than 0.5 m / s, the slope of thermal sensation decreases slightly more than when the wind speed is greater than 0.5 m / s. Therefore, when designing the air conditioning system, the wind speed inside the cabin can be reasonably increased to achieve a comfortable and energy-saving effect.

[0094] Furthermore, the design operating conditions of the submarine ventilation and air-conditioning system corresponding to different wind speed design values ​​are shown in the following table:

[0095]

[0096]

[0097] As shown in the table above, for Design Condition 1, a wind speed of 1.5 m / s is required to achieve a Level 2 environment, while a wind speed of 1.2 m / s is required to achieve a Level 3 environment. Wind speeds exceeding 1 m / s not only result in a noticeable draft but also easily cause other environmental problems, such as items like papers being blown away. Therefore, in Design Condition 1, changing the wind speed is not very practical for achieving a superior thermal environment, but it is more reasonable for Design Condition 2.

[0098] d) Relative humidity design range

[0099] The calculation range of relative humidity is from 10% to 100%. There is a linear relationship between relative humidity and human thermal sensation. When the overall thermal sensation of the human body is hot, the higher the relative humidity, the hotter the human body feels. In the human body's comfortable temperature range, such as Figures 8-9As shown in the figure, the influence of humidity change on PMV is within the range of ±0.2, and its influence can be basically ignored.

[0100] In the relatively hot environment of Design Condition 1, the perceived heat of the human body increases significantly with increasing relative humidity. Furthermore, when both air temperature and radiant temperature are high, simply changing indoor humidity to achieve thermal comfort is not feasible. However, for the environment corresponding to Design Condition 2, changes in relative humidity have a negligible impact on thermal sensation. Considering the influence of relative humidity on other instruments and equipment, the relative humidity range in this example is 30%-70%.

[0101] Furthermore, the design conditions of the submarine ventilation and air conditioning system under different relative humidity are shown in the table below:

[0102]

[0103] e) Clothing thermal resistance range

[0104] Clothing thermal resistance is an important means of regulating the human body's thermal sensation level. The effect of clothing thermal resistance on thermal sensation is as follows: Figures 10-11 As shown. The calculation range covers from basic summer clothing (short-sleeved shirt and shorts, 0.5clo) to standard clothing (regular jacket + long-sleeved shirt + shirt and trousers, 1.0clo). Clothing thermal resistance and human thermal comfort level show a linear relationship. In design condition two, clothing thermal resistance and human thermal sensation PMV values ​​also show a basically linear trend. Under the same clothing thermal resistance, the thermal sensation value in design condition one is about 0.8-1.4 higher than that in design condition two.

[0105] The thermal resistance of clothing should be determined based on different practical situations. For example, in summer, people typically wear shorts and t-shirts, resulting in a clothing thermal resistance of around 0.5 clo. However, if a person wears a jacket and long-sleeved clothing, the thermal resistance is around 0.7 clo. Therefore, for design condition one, it is unlikely to achieve a comfortable fit by changing the clothing thermal resistance. For design condition two, different clothing thermal resistances correspond to different thermal sensations experienced by the human body.

[0106] Furthermore, the design operating conditions of the submarine ventilation and air-conditioning system under different clothing thermal resistances are shown in the following table:

[0107]

[0108] f) Metabolic rate range

[0109] Inside the cabin, the intensity of human activity will also vary. Figures 12-13The activity intensity covered ranged from a sedentary resting state (1.0 MET) to vigorous physical activity (2.5 MET). As activity intensity increased, the body's thermal sensation also increased. Under sedentary conditions, the thermal sensation value in design condition one was approximately 1.4 lower; while at the highest activity intensity, the thermal sensation level was approximately 0.5 lower. This is because, at high activity intensity, the intense evaporative cooling caused by sweating reduces the effect of changes in ambient temperature on thermal sensation.

[0110] Furthermore, the design conditions of the submarine ventilation and air conditioning system under different metabolic rates are shown in the table below:

[0111]

[0112] Under design condition one, it is unrealistic to achieve a comfortable environment by adjusting the intensity of human activity; however, under design condition two, people are relatively comfortable from a sitting state to light physical activity.

[0113] In summary, the thermal comfort design method for a submarine ventilation and air conditioning system according to the present invention is as follows:

[0114] 1. The submarine's interior space for personnel activities is divided into zones, and different design parameters are adopted for different zones to achieve thermal comfort design for the submarine's overall ventilation and air-conditioning system. While ensuring thermal comfort in each zone, it also takes into account energy efficiency, thus improving the habitability of each compartment in the submarine.

[0115] 2. By establishing a simulation model and performing parameter calculations, the thermal comfort design schemes for each submarine compartment were evaluated and verified, and the submarine ventilation and air-conditioning system was adjusted based on the verification results, thereby improving the accuracy of the thermal comfort design of the submarine ventilation and air-conditioning system.

[0116] It will be easily understood by those skilled in the art that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for thermal comfort design of submarine ventilation and air conditioning system, characterized in that: The specific process is as follows: S1. Determine the project overview and design content, specifically determine the purpose, area, number of personnel and activity parameters of the submarine's enclosed compartments; S2. Air-conditioning areas are divided into zones according to their uses. Specifically, the zones are divided into zones for the activities of personnel in the submarine cabins based on the model calculation and the principle of ensuring comfort and then considering energy saving according to the uses of different spaces in the cabins; S3, determining the design parameters of the ventilation and air-conditioning system of each compartment of the submarine according to the partition, wherein the design parameters specifically include air temperature, radiation temperature, average wind speed, relative humidity, clothing thermal resistance and activity intensity; S4, determining the air conditioning system scheme, specifically calculating the cooling and heating loads in each cabin of the submarine according to the design parameters, so as to select a suitable type of air conditioning equipment; S5. Thermal comfort design of submarine ventilation and air conditioning system, specifically, according to the air supply parameters of the air conditioning system of each submarine cabin, the air flow in the cabin is simulated by using computational fluid dynamics, the environmental parameters and personnel parameters obtained by simulation are compared with the design parameters, the thermal comfort rating of each submarine cabin is determined, and the design parameters are adjusted according to the thermal comfort rating, so that the thermal comfort rating of each submarine cabin is not less than level 2; S6. Determine the air supply mode of the submarine ventilation and air conditioning system, specifically, determine the air supply speed of the ventilation and air conditioning of each cabin of the submarine according to the adjusted design parameters, and the air supply speed includes low speed, medium speed and high speed.

2. A method for thermal comfort design of submarine ventilation and air conditioning system according to claim 1, characterized in that: The personnel activity space in the submarine cabin is specifically divided into three areas, the first area is the sleeping and resting area, the second area is the general working area, and the third area is the short-term stay area.

3. A method for thermal comfort design of submarine ventilation and air conditioning system according to claim 2, characterized in that: The general work area is specifically the daily work area for personnel, and the short-term stay area is specifically the machine room and the operation room.

4. A method for thermal comfort design of submarine ventilation and air conditioning system according to claim 1, characterized in that: The thermal comfort rating corresponds to the PMV value. When -0.2≤PMV≤0.2, the thermal comfort rating is level one, when -0.5≤PMV≤0.5, the thermal comfort rating is level two, and when -0.7≤PMV≤0.7, the thermal comfort rating is level three.

5. A method for thermal comfort design of submarine ventilation and air conditioning system according to claim 1, characterized in that: The design parameters are adjusted according to the predicted value of human thermal sensation calculated by the Chinese thermal comfort model to increase the design value of the air temperature.

6. A method for thermal comfort design of submarine ventilation and air conditioning system according to claim 1, characterized in that: The environmental parameters specifically include air temperature, radiation temperature, average wind speed, and relative humidity obtained through simulation, and the personnel parameters specifically include clothing thermal resistance and activity intensity obtained through simulation.

7. A method for thermal comfort design of submarine ventilation and air conditioning system according to claim 1, characterized in that: The thermal comfort rating is specifically improved by changing air temperature, radiant temperature, clothing thermal resistance, and activity intensity.

8. A design device, characterized in that: include: A memory having an executable program stored therein; A processor is used to execute the executable program in the memory to implement the steps of the thermal comfort design method for a submarine ventilation and air-conditioning system as described in any one of claims 1 to 7.

9. A storage medium, characterized in that: The storage medium stores one or more programs, and when the one or more programs are executed by one or more processors, the steps of the thermal comfort design method for a submarine ventilation and air-conditioning system as described in any one of claims 1 to 7 can be implemented.

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