Energy-saving design method for constructional engineering

Abstract

The invention discloses a building engineering energy-saving design method, and relates to the technical field of energy-saving optimization design, the building engineering energy-saving design method uses a data collection module, a data processing module, a calculation processing module and a data storage module to operate, and through mutual cooperation of three groups of algorithm units in the calculation processing module, the energy-saving optimization design of the building engineering is realized. According to the method, factors such as climate conditions, solar radiation amount and rainfall of different constructional engineering in different cities can be comprehensively considered, and specific gravity values Y of solar panels placed on different building roofs are calculated; the solar panel and the rainwater collecting module are installed on the roof of the building, the proportion of the solar panel and the rainwater collecting module on the roof is scientifically and reasonably distributed, solar energy and rainwater resources are utilized to the maximum extent, and the energy-saving design method for optimizing energy utilization is beneficial to reducing dependence on traditional energy and improving energy utilization efficiency. And the energy consumption and the operation cost of the building can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of energy-saving optimization design, and in particular to an energy-saving design method for a construction project. Background Art

[0002] Construction engineering refers to the engineering entity formed by the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. "Buildings" refer to projects with roofs, beams, columns, walls, foundations, and internal spaces that can meet people's needs for production, living, learning, and public activities.

[0003] With the rapid development of society, there are more and more housing complexes. However, energy-saving design is rarely considered in the design and construction of existing housing complexes. Solar energy and rainwater resources are both valuable natural resources. These resources should be fully utilized in construction projects to reduce the consumption of traditional energy and the emission of pollutants. This design is helpful to promote the development of environmental protection and protect our home planet.

[0004] In order to utilize solar energy and rainwater resources, it is necessary to place solar panels and rainwater collection modules on the roof of the building. Due to the differences in rainfall and solar radiation in different urban areas, how to determine the proportion of solar panels and rainwater collection modules on the roof of the building so as to maximize the use of solar energy and rainwater resources is a difficulty in the current energy-saving design methods of construction projects.

[0005] Therefore, there is an urgent need for an energy-saving design method for building projects that can determine the proportion of solar panels and rainwater collection modules on the roof of a building so as to maximize the use of solar energy and rainwater resources. Summary of the invention

[0006] The purpose of the present invention is to provide a construction engineering energy-saving design method to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a construction engineering energy-saving design method, the method comprising the following steps: Data collection includes: Obtain the total solar radiation H and atmospheric transparency T of the city where the construction project is located from the data released by the Meteorological Bureau; Obtain the distance between buildings d, the height of each floor h, and the inclination angle θ of the building roof from the drawing data of the construction project; Data preprocessing: The total solar radiation H, atmospheric transparency T, building spacing d, floor height h, and building roof inclination angle θ collected are transmitted to the data processing module for decoding preprocessing to obtain important parameters affecting solar radiation S, annual effective rainfall R, and solar panel placement ratio Y; Energy-saving design methods include: Substitute the decoded parameter values ​​into the solar radiation algorithm unit and the annual effective rainfall algorithm unit to calculate the solar radiation S and annual effective rainfall R, two parameters that have an important impact on the solar panel placement ratio Y; Next, the calculated solar radiation S and the annual effective rainfall R are substituted into the solar panel placement ratio algorithm unit to calculate the solar panel placement ratio Y. After the total area of ​​the solar panels and the rainwater collection module on the building roof is determined according to the solar panel placement ratio Y, the solar panels and the rainwater collection module are installed on the building roof. Feedback and adjustment: Every year, the proportion Y of solar panels placed on the building complex in the new year is recalculated based on the total electricity consumption I and total water consumption M of the building complex in the previous year. Based on the calculated Y value, the proportion of solar panels and rainwater collection modules placed on the roof of the building is readjusted and allocated to maximize the use of solar energy and water resources, reduce the building complex’s dependence on traditional energy, and reduce the building’s energy consumption and operating costs.

[0008] Optionally, the energy-saving design method for construction projects is operated using a data collection module, a data processing module, a calculation processing module and a data storage module.

[0009] Optionally, the data collection module is used to obtain the total solar radiation H and atmospheric transparency T of the city where the construction project is located from the data released by the Meteorological Bureau, and obtain the building spacing d, floor height h and building roof inclination angle θ of the building complex from the drawing data of the construction project and transmit them to the database; The total solar radiation H, atmospheric transparency T, building spacing d, floor height h and building roof inclination angle θ collected are then transmitted to the data processing module for decoding preprocessing to obtain important parameters affecting solar radiation S, annual effective rainfall R and solar panel placement ratio Y; The parameters are substituted into the calculation processing module for operation, and the solar panel placement ratio Y is calculated. After the total area of ​​the solar panels and rainwater collection modules on the building roof is determined according to the solar panel placement ratio Y, the solar panels and rainwater collection modules are installed on the building roof.

[0010] Optionally, the calculation and processing module includes a solar radiation algorithm unit, an annual effective rainfall algorithm unit and a solar panel placement ratio algorithm unit.

[0011] Optionally, the solar radiation algorithm unit is as follows: ; in: S represents solar radiation; H represents the total solar radiation of the city; θ represents the roof inclination angle; ω represents the latitude of the geographical location, indicating the latitude value of the city where the building is located; d represents the distance between buildings in the complex; h represents the floor height; T stands for atmospheric transparency; α and β are the weight coefficients for adjusting the ratio of floor height to building distance (d / h) and atmospheric transparency T, respectively.

[0012] Optionally, the annual effective rainfall algorithm unit is as follows: ; in: R represents the annual effective rainfall; P stands for the total annual rainfall, which means the total amount of rain that falls in the city where the construction project is located in one year; E stands for rainwater conversion efficiency; θ represents the roof inclination angle.

[0013] Optionally, the solar panel placement weight algorithm unit is as follows: ; in: Y represents the proportion of solar panels placed on the roof; η represents the cost ratio of 1 square meter of solar panels to 1 square meter of rainwater collection modules; S represents solar radiation; I represents the total electricity consumption of the building in a year; R represents the annual effective rainfall; W represents the total water consumption of the building complex in one year.

[0014] Optionally, the data processing module and the computing processing module include data processing equipment.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention forms the core framework of the energy-saving design method for construction projects through the mutual cooperation of three groups of algorithm units. It can comprehensively consider the climatic conditions, solar radiation and rainfall of different construction projects in different cities, calculate the proportion value Y of solar panels placed on the roofs of different buildings, and then install solar panels and rainwater collection modules on the roofs of buildings. It can reasonably allocate the proportion of solar panels and rainwater collection modules on the roof to maximize the use of solar energy and rainwater resources. This energy-saving design method that optimizes energy utilization not only helps to reduce dependence on traditional energy, but also reduces energy consumption and operating costs of buildings.

[0016] 2. The present invention uses a solar radiation algorithm unit to comprehensively consider the geographical locations of different construction projects in different cities, as well as multiple influencing factors such as the inclination angle of the building roof, and calculates the annual solar radiation S of the roof under different orientations and layouts. According to the calculated S value, the architect can more accurately determine the optimal orientation and layout of the building. In the next construction project design in the city, the solar energy resources can be maximized and energy-saving design can be carried out, which helps to reduce the building's dependence on traditional energy, reduce energy consumption and carbon emissions, and continuously study and optimize the calculation method of solar radiation through the above algorithm, which can promote the continuous development and innovation of green building technology and provide more refined scientific data support for the solar energy-saving design of construction projects.

[0017] 3. The present invention can recalculate the solar panel placement proportion Y value of the building complex in the new year according to the total electricity consumption I and total water consumption M of the building complex in the previous year of different construction projects. According to the calculated new Y value, the proportion of solar panels and rainwater collection modules placed on the roof of the building is redistributed again, and feedback adjustment is performed, which is more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a flow chart of a method for energy-saving design of building projects; Figure 2 The figure is a schematic diagram of the overall structure of an energy-saving design method for a building project. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1 and Figure 2 The present invention provides a construction engineering energy-saving design method, the method comprising the following steps: Information data collection, including: Obtain the total solar radiation H and atmospheric transparency T of the city where the construction project is located from the data released by the Meteorological Bureau; Obtain the distance between buildings d, the height of each floor h, and the inclination angle θ of the building roof from the drawing data of the construction project; Data preprocessing: The total solar radiation H, atmospheric transparency T, building spacing d, floor height h, and building roof inclination angle θ collected are transmitted to the data processing module for decoding preprocessing to obtain important parameters affecting solar radiation S, annual effective rainfall R, and solar panel placement ratio Y; Energy-saving design methods include: Substitute the decoded parameter values ​​into the solar radiation algorithm unit and the annual effective rainfall algorithm unit to calculate the solar radiation S and annual effective rainfall R, two parameters that have an important impact on the solar panel placement ratio Y; Next, the calculated solar radiation S and the annual effective rainfall R are substituted into the solar panel placement ratio algorithm unit to calculate the solar panel placement ratio Y. After the total area of ​​the solar panels and the rainwater collection module on the building roof is determined according to the solar panel placement ratio Y, the solar panels and the rainwater collection module are installed on the building roof. Feedback and adjustment: Every year, the proportion Y of solar panels placed on the building complex in the new year is recalculated based on the total electricity consumption I and total water consumption M of the building complex in the previous year. Based on the calculated Y value, the proportion of solar panels and rainwater collection modules placed on the roof of the building is readjusted and allocated to maximize the use of solar energy and water resources, reduce the building complex’s dependence on traditional energy, and reduce the building’s energy consumption and operating costs.

[0021] In this embodiment, the three groups of algorithm units cooperate with each other to form the core framework of the energy-saving design method for building projects. The three algorithm units comprehensively consider the differences in climate regulation in different urban areas, the cost ratio of solar panels and rainwater collection modules, solar radiation, building electricity consumption, building roof inclination angle, and annual effective rainfall, and calculate the proportion value Y of different solar panels placed on the roofs of different building projects in different urban areas; Solar panels can convert solar energy into electrical energy, providing clean, renewable energy for buildings. By calculating the Y value before installing solar panels and rainwater collection modules, it can be ensured that the layout of solar panels on the roof can fully receive sunlight while not excessively blocking the rainwater collection modules for rainwater collection. This design helps to improve the energy efficiency of buildings, reduce energy consumption and greenhouse gas emissions, and is in line with the concept of green buildings and sustainable development. And by calculating the Y value, the proportion of solar panels and rainwater collection modules on the roof can be reasonably allocated to maximize the use of solar energy and rainwater resources. This design method of optimizing energy utilization not only helps to reduce dependence on traditional energy, but also reduces the energy consumption and operating costs of buildings.

[0022] Embodiment 2: The calculation processing module includes a solar radiation algorithm unit, an annual effective rainfall algorithm unit and a solar panel placement ratio algorithm unit.

[0023] See also Figure 1 to Figure 2 , the solar radiation algorithm unit is as follows: ; in: S stands for solar radiation; it indicates the amount of solar radiation received by the roof of a building in one year, unit: kWh / m 2 ; H represents the total solar radiation of the city. The specific value is obtained from the data released by the Meteorological Bureau. It indicates the total solar radiation received by the city without any obstacles and inclination angles. H is the basic value of the annual solar radiation of the roof, which directly affects the size of S. θ represents the roof inclination angle; it indicates the degree of inclination of the roof relative to the horizontal plane; ω represents the latitude of the geographical location, indicating the latitude of the city where the building is located. It determines the trajectory and altitude of the sun in the sky. The amount of solar radiation received by building roofs of different dimensions is also different. pass" "The cosine value calculated in this part is used as the influencing item of solar radiation. Different tilt angles will result in different amounts of solar radiation received. When θ matches the solar incident angle, the amount of solar radiation received S is the largest. d represents the distance between buildings in the complex, which means the distance between two adjacent residential buildings, in meters; h represents the floor height, which indicates the height of a single residential building in meters; The d / h term affects the solar radiation S, which means that the higher the distance between floors, the less the sunlight is blocked. According to national requirements, the front-to-back distance of ordinary residential communities is usually based on a ratio of building height to distance of 1:1.2. For example, if the height of a house is 20 meters, the front-to-back distance should be at least 24 meters. T stands for atmospheric transparency; it indicates the ability of the atmosphere to transmit solar radiation, obtained from the information data released by the Meteorological Bureau; The atmospheric transparency T value will directly affect the amount of solar radiation S. The higher the atmospheric transparency (close to 1), the less the atmosphere absorbs and scatters solar radiation, and the greater the amount of solar radiation S received by the roof.

[0024] α and β are the weight coefficients for adjusting the ratio of floor height to building distance (d / h) and atmospheric transparency T, respectively. They are used to adjust the influence ratio of floor height to building distance (d / h) and atmospheric transparency T on solar radiation S. The values ​​of a and b determine the contribution of d / h and T in the formula, and can be self-adjusted in the energy-saving design method of building engineering.

[0025] In this embodiment: By comprehensively considering the geographical location of different construction projects in different cities, the inclination of building roofs, as well as the floor height and building spacing of the building complex and other influencing factors, the annual solar radiation S of the roof under different orientations and layouts is calculated. Architects can more accurately determine the optimal orientation and layout of the building. In the next construction project design in the city, they can maximize the use of solar energy resources and carry out energy-saving design, which will help reduce the building's dependence on traditional energy, reduce energy consumption and carbon emissions. In addition, through the continuous research and optimization of the calculation method of solar radiation through the above algorithm, it can promote the continuous development and innovation of green building technology, and provide more refined scientific data support for the solar energy-saving design of construction projects.

[0026] See also Figure 1 to Figure 2 , the annual effective rainfall algorithm unit is as follows: ; in: R represents the annual effective rainfall; P represents the total annual rainfall, which means the total amount of rainwater that falls in the city where the construction project is located within one year. P is the base value of Formula 2, which directly determines the total potential amount of rainwater that can be collected in the area. The greater the annual rainfall, the more rainwater can be collected.

[0027] E stands for rainwater conversion efficiency, which is a percentage value. It refers to the conversion efficiency of the rainwater collection module in converting the collected rainwater into usable water. It reflects the ability of the rainwater collection module in converting rainwater collected from the roof into usable water in the module. It has a positive impact on the calculation of the annual effective rainfall R. For example, using PP plastic rainwater collection modules, the conversion percentage of collected rainwater and converted into usable water is generally above 95%; θ represents the roof inclination angle, which indicates the degree of inclination of the roof relative to the horizontal plane; “ "This part represents the cosine value of the roof inclination angle θ, which is used to adjust the change in rainwater collection efficiency caused by the roof inclination angle. This reflects the impact of the inclination angle of the building roof on the rainwater collection efficiency. When the inclination angle is in the range of 0° to 45°, as the inclination angle increases, rainwater is more likely to flow down the roof and be captured by the collection system. However, when the inclination angle is greater than 45°, the roof inclination angle is too large, and some rainwater will fly off the roof and cannot be effectively collected. Therefore, " This part is used as an adjustment item to adjust the impact of the change in tilt angle on the annual effective rainfall R.

[0028] In this embodiment, the above algorithm formula comprehensively considers multiple factors such as annual rainfall P, rainwater collection system efficiency E, and roof inclination angle θ, and jointly determines the actual effectiveness of the rainwater collection system placed on the roof of the building. By accurately calculating the annual effective rainfall R, architectural designers can more accurately evaluate the performance of different rainwater collection modules, thereby selecting the optimal energy-saving design solution, which helps to optimize the layout of rainwater collection systems in different cities and different construction projects, ensure that the system can operate stably under different rainfall conditions, and maximize the collection and utilization of rainwater resources. The collected rainwater is used for flushing toilets, irrigation, cleaning and other purposes to reduce dependence on traditional water resources. This not only helps to save water resources, but also reduces the water consumption and operating costs of buildings, so that urban construction projects can use rainwater resources more efficiently to reduce energy consumption and carbon emissions, and also provides more refined scientific data support for the energy-saving design of rainwater utilization in construction projects.

[0029] See also Figure 1 to Figure 2 , the solar panel placement weight algorithm unit is as follows: ; in: Represents the proportion of solar panels placed on the roof; this is a percentage value between 0 and 1, indicating the proportion of solar panel area to the total roof area. When it is close to 1, it means that the solar panels occupy most of the roof area; when When it is close to 0, it means that the rainwater collection module occupies most of the roof area; η represents the cost ratio of 1 square meter of solar panels to 1 square meter of rainwater collection modules; obtained from the cost report when installing solar panels and rainwater collection modules, this proportional coefficient reflects the relative importance of solar panels and rainwater collection modules in economic costs. The larger the value of η, the higher the cost of solar panels relative to rainwater collection modules. Considering the cost of solar panels, the proportion of solar panels will be reduced accordingly when calculating α; S represents the amount of solar radiation. The larger the value of S is, the higher the power generation efficiency of the solar panel is. When calculating the proportion Y, the proportion of the solar panel will increase accordingly. I represents the total electricity consumption of the building in a year, in kilowatt-hours, indicating the total demand for electricity of the building complex. The larger the value of I, the higher the demand for electricity of the building complex. When calculating α, in order to meet the higher demand for electricity, the proportion of solar panels will increase accordingly; R represents the annual effective rainfall; this parameter indicates the effective rainfall that the rainwater collection module on the roof can collect in one year. Similarly, the larger the value of R, the higher the collection efficiency of the rainwater collection module. When calculating the proportion Y, the proportion of the solar panel will be reduced accordingly. W represents the total water consumption of the building complex in one year, indicating the total demand for water resources of the building complex. The larger the value of W, the higher the demand for water resources of the building. In order to meet the demand for water resources, the proportion of solar panels Y will decrease accordingly.

[0030] In this embodiment, Formula 3 comprehensively considers multiple factors such as the cost ratio of solar panels and rainwater collection modules, solar radiation, building electricity consumption, and annual effective rainfall. By accurately calculating the Y value, the proportion of solar panels and rainwater collection modules on the roofs of different buildings in different cities can be reasonably allocated, thereby maximizing the use of solar energy and rainwater resources. This method of optimizing energy utilization not only helps to reduce dependence on traditional energy, but also reduces the energy consumption and operating costs of buildings, providing scientific data support for energy-saving design methods for construction projects.

[0031] And because of the differences in geographical location, solar radiation and rainfall in different regions, by calculating the Y value, the proportion of solar panels and rainwater collection modules on the roof can be flexibly adjusted according to the local geographical location and climate. This energy-saving design method is more adaptable.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for energy-saving design of building engineering, characterized by: The method comprises the following steps: Data collection includes: Obtain the total solar radiation H and atmospheric transparency T of the city where the construction project is located from the data released by the Meteorological Bureau, and obtain the building spacing d, floor height h and building roof inclination angle θ of the building complex from the drawing data of the construction project; Data preprocessing: the collected data is transmitted to the data processing module for decoding preprocessing to obtain important parameters that affect solar radiation S, annual effective rainfall R, and solar panel placement ratio Y; Energy-saving design methods include: Substitute the decoded parameter values ​​into the solar radiation algorithm unit and the annual effective rainfall algorithm unit to calculate the solar radiation S and annual effective rainfall R, two parameters that have an important impact on the solar panel placement ratio Y; Next, the calculated solar radiation S and the annual effective rainfall R are substituted into the solar panel placement ratio algorithm unit to calculate the solar panel placement ratio Y. After the total area of ​​the solar panels and the rainwater collection module on the building roof is determined according to the solar panel placement ratio Y, the solar panels and the rainwater collection module are installed on the building roof. Feedback and adjustment: Every year, the proportion Y of solar panels placed on the building complex in the new year is recalculated based on the total electricity consumption I and total water consumption M of the building complex in the previous year. Based on the calculated Y value, the proportion of solar panels and rainwater collection modules placed on the roof of the building is readjusted and allocated to maximize the use of solar energy and water resources and reduce the building complex's dependence on traditional energy.

2. A construction engineering energy-saving design method according to claim 1, characterized in that: The construction engineering energy-saving design method is operated by using a data collection module, a data processing module, a calculation processing module and a data storage module.

3. A construction engineering energy-saving design method according to claim 2, characterized in that: The data collection module is used to obtain the total solar radiation H and atmospheric transparency T of the city where the construction project is located from the data released by the Meteorological Bureau, and obtain the building spacing d, floor height h and building roof inclination angle θ of the building complex from the drawing data of the construction project and transmit them to the database; The total solar radiation H, atmospheric transparency T, building spacing d, floor height h and building roof inclination angle θ collected are then transmitted to the data processing module for decoding preprocessing to obtain important parameters affecting solar radiation S, annual effective rainfall R and solar panel placement ratio Y; The parameters are substituted into the calculation processing module for operation, and the solar panel placement ratio Y is calculated. After the total area of ​​the solar panels and rainwater collection modules on the building roof is determined according to the solar panel placement ratio Y, the solar panels and rainwater collection modules are installed on the building roof.

4. A construction engineering energy-saving design method according to claim 2, characterized in that: The calculation and processing module includes a solar radiation algorithm unit, an annual effective rainfall algorithm unit and a solar panel placement ratio algorithm unit.

5. A construction engineering energy-saving design method according to claim 4, characterized in that: The solar radiation algorithm unit is as follows: ； in: S represents solar radiation; H represents the total solar radiation of the city; θ represents the roof inclination angle; ω represents the latitude of the geographical location, indicating the latitude value of the city where the building is located; d represents the distance between buildings in the complex; h represents the floor height; T stands for atmospheric transparency; α and β are the weight coefficients for adjusting the ratio of floor height to building distance (d / h) and atmospheric transparency T, respectively.

6. A construction engineering energy-saving design method according to claim 5, characterized in that: The annual effective rainfall algorithm unit is as follows: ； in: R represents the annual effective rainfall; P stands for the total annual rainfall, which means the total amount of rain that falls in the city where the construction project is located in one year; E stands for rainwater conversion efficiency; θ represents the roof inclination angle.

7. A construction engineering energy-saving design method according to claim 6, characterized in that: The solar panel placement weight algorithm unit is as follows: ； in: Y represents the proportion of solar panels placed on the roof; η represents the cost ratio of 1 square meter of solar panels to 1 square meter of rainwater collection modules; S represents solar radiation; I represents the total electricity consumption of the building in a year; R represents the annual effective rainfall; W represents the total water consumption of the building complex in one year.

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