A method and system for evaluating power of an absorption refrigeration engine intake air cooling system

Abstract

This invention discloses a power assessment method and system for the intake air cooling system of an absorption chiller gas turbine, belonging to the technical field of combined cycle unit upgrade and retrofit. Given the expected benefits of adding an absorption chiller gas turbine intake air cooling system, based on unit design parameters and performance correction curves, a method iteratively calculates key parameters such as the heat absorption of the refrigeration equipment, auxiliary equipment power, turbine extraction steam volume, and power changes. This continuously reduces the gap between the calculated and target values ​​of the unit's net power change, ultimately obtaining a parameter table for the gas turbine intake air cooling system under the condition of meeting the expected benefits. This method avoids complex thermodynamic simulation modeling and can quickly and accurately calculate the parameters of the absorption chiller gas turbine intake air cooling system, guiding feasibility studies and equipment design and selection for retrofit projects.

Description

Technical Field

[0001] This invention belongs to the technical field of combined cycle unit upgrading and retrofitting, and relates to a power evaluation method and system for the intake air cooling system of an absorption refrigeration gas turbine. Background Technology

[0002] Gas turbine inlet cooling systems can improve the electrical power of combined cycle units under high-temperature conditions and play an important role in peak shaving of the power grid in summer. Therefore, more and more combined cycle power plants have put forward the application of gas turbine inlet cooling system retrofit projects.

[0003] Absorption refrigeration technology is a common and widely used method for cooling the intake air of gas turbines. Because absorption refrigeration consumes energy from the original turbine, leading to a decrease in turbine power, the impact of steam consumption must be considered when analyzing the net power gain of the unit. In practical engineering applications, the capacity of refrigeration plant equipment is constrained by site conditions; therefore, the capacity of the refrigeration equipment is generally determined roughly based on the available space before further evaluation. Conventional thermodynamic simulation modeling methods are usually quite complex and difficult to quickly assess the capacity of the refrigeration equipment required for system modification. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing thermodynamic simulation modeling methods are usually quite complex and it is difficult to quickly assess the capacity of the refrigeration equipment required for system modification. This invention provides a power assessment method and system for an absorption refrigeration gas turbine intake cooling system.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] The present invention proposes a power evaluation method for an absorption refrigeration gas turbine intake air cooling system, comprising the following steps:

[0007] Obtain the unit load and fitted performance correction curve, and obtain the unit power change based on the fitted performance correction curve and unit load;

[0008] Obtain the cooling capacity of the absorption refrigeration equipment, obtain the driving steam flow rate based on the cooling capacity of the absorption refrigeration equipment, and obtain the turbine power change based on the driving steam flow rate;

[0009] Obtain the unit power increment and auxiliary machine power consumption curves, and obtain the unit net power change based on the unit power change, turbine power change and auxiliary machine power consumption curves;

[0010] If the changes in net unit power and the increment of unit power meet the constraints, the performance parameter table of the intake cooling system can be obtained, thus realizing the power evaluation of the intake cooling system.

[0011] Preferably, the method for obtaining the fitting performance correction curve f(T) is as follows:

[0012] f(T) = a × T 2 +b×T+c

[0013] Where a, b, and c are fitting constants for the variation of the output power of the combined cycle unit with the gas turbine inlet air temperature, and T is the temperature;

[0014] The unit power change ΔW g The method to obtain it is as follows:

[0015]

[0016] Where W0 is the unit load, T0 is the gas turbine inlet temperature, T1 is the cooled air temperature, f(T1) is the unit power change at the gas turbine inlet temperature, and f(T0) is the unit power change at the cooled air temperature.

[0017] Preferably, the method for obtaining the cooling capacity Q0 of the absorption refrigeration equipment is as follows:

[0018]

[0019] Where RH0 is the intake humidity, D is the air moisture content, F0 is the air flow rate, h is the air moisture content, T1 is the cooled air temperature, T0 is the gas turbine intake temperature, and T... b Dew point temperature;

[0020] Calculate the dew point temperature T corresponding to the design parameters. b The method to obtain it is as follows:

[0021]

[0022] Preferably, the absorption refrigeration equipment drives a steam flow rate F CQ The method to obtain it is as follows:

[0023]

[0024] Where Q0 is the cooling capacity of the absorption refrigeration equipment, COP is the energy efficiency coefficient of the refrigeration equipment, and H CQ The steam enthalpy of the steam extracted from the turbine to the absorption chiller, H DW This refers to the return water enthalpy of an absorption chiller.

[0025] Preferably, the turbine power change ΔW st The method to obtain it is as follows:

[0026]

[0027] Among them, W st0For the turbine load, F MS Main steam flow rate, H MS Main vapor enthalpy, H EX This refers to the exhaust enthalpy of the steam turbine.

[0028] Preferably, the net power change of the unit is ΔW u The method to obtain it is as follows:

[0029] ΔW u =ΔW g -ΔW st -ΔW a

[0030] Wherein, ΔW a To fit the power consumption of auxiliary equipment in refrigeration equipment, ΔW st For the change in turbine power, ΔW g For changes in unit power;

[0031] Fitting the power consumption ΔW of auxiliary equipment for refrigeration equipment a The method to obtain it is as follows:

[0032]

[0033] Where d and e are fitting constants characterizing the variation of power consumption of the refrigeration equipment with the refrigeration capacity, and Q0 is the refrigeration capacity of the absorption refrigeration equipment.

[0034] Preferably, the change in net unit power and the increment in unit power satisfy the constraint condition ΔW. u >ΔW0; if ΔW u If ≤ΔW0, let T1=T1-ΔT be substituted into the turbine power change, until the unit net power change and unit power increment satisfy the constraint conditions and the cycle ends; where ΔT is the temperature change value in the iterative calculation process.

[0035] This invention proposes a power evaluation system for the intake air cooling system of an absorption refrigeration gas turbine, comprising:

[0036] A unit power change acquisition module is used to acquire the unit load and the fitted performance correction curve, and to acquire the unit power change based on the fitted performance correction curve and the unit load.

[0037] A turbine power change acquisition module is used to acquire the cooling capacity of the absorption refrigeration equipment, acquire the driving steam flow rate based on the cooling capacity of the absorption refrigeration equipment, and acquire the turbine power change based on the driving steam flow rate.

[0038] The unit net power change acquisition module is used to acquire the unit power increment and auxiliary machine power consumption curve, and to acquire the unit net power change based on the unit power change, turbine power change and auxiliary machine power consumption curve.

[0039] The constraint condition determination module is used to determine whether the net power change and the power increment of the unit meet the constraint conditions. If so, the performance parameter table of the intake cooling system is obtained, and the power evaluation of the intake cooling system is realized.

[0040] A computer device includes a memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the steps of a power evaluation method for an absorption refrigeration gas turbine intake cooling system.

[0041] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of a power evaluation method for an absorption refrigeration gas turbine intake cooling system.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] The purpose of this invention is to provide a power evaluation method for the intake air cooling system of an absorption refrigeration gas turbine. Given the expected benefits of adding an absorption refrigeration gas turbine intake air cooling system, based on unit design parameters and performance correction curves, the method iteratively calculates key parameters such as the heat absorption of the refrigeration equipment, auxiliary equipment power, turbine extraction steam volume, and power changes. This continuously reduces the gap between the calculated and target values ​​of the unit's net power change, ultimately obtaining the net power change of the gas turbine intake air cooling system under the condition of meeting the expected benefits. Therefore, the evaluation method proposed in this invention, under given expected benefits and combined with unit design parameters, can quickly and accurately calculate the parameters of the intake air cooling system of an absorption refrigeration gas turbine, guiding the feasibility study and equipment design selection for retrofit projects. It avoids complex thermodynamic simulation modeling and can be used to guide the feasibility study and equipment design selection for retrofit projects.

[0044] This invention proposes a power assessment system for the intake air cooling system of an absorption refrigeration gas turbine. By dividing the system into a unit power change acquisition module, a turbine power change acquisition module, a unit net power change acquisition module, and a constraint condition determination module, the system achieves power assessment of the intake air cooling system. The modular approach ensures that each module is independent, facilitating unified management of all modules. Attached Figure Description

[0045] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a flowchart of the power evaluation method for the intake air cooling system of the absorption refrigeration gas turbine of the present invention.

[0047] Figure 2 This is a flowchart illustrating the power evaluation method for the intake air cooling system of the absorption refrigeration gas turbine of the present invention.

[0048] Figure 3 This is a trend chart of the calculation results for a case study project of the present invention.

[0049] Figure 4 This is a power evaluation system diagram of the absorption refrigeration gas turbine intake cooling system of the present invention. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0052] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0053] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0054] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0055] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0056] The present invention will now be described in further detail with reference to the accompanying drawings:

[0057] This invention proposes a power evaluation method for the intake air cooling system of an absorption refrigeration gas turbine, such as... Figure 1 As shown, it includes the following steps:

[0058] S1. Obtain the unit load and fitted performance correction curve, and obtain the unit power change based on the fitted performance correction curve and unit load;

[0059] The method for obtaining the fitting performance correction curve f(T) is as follows:

[0060] f(T) = a × T 2 +b×T+c

[0061] Where a, b, and c are fitting constants for the variation of the output power of the combined cycle unit with the gas turbine inlet air temperature, and T is the temperature;

[0062] The unit power change ΔW g The method to obtain it is as follows:

[0063]

[0064] Where W0 is the unit load, T0 is the gas turbine inlet temperature, T1 is the cooled air temperature, f(T1) is the unit power change at the gas turbine inlet temperature, and f(T0) is the unit power change at the cooled air temperature.

[0065] S2. Obtain the cooling capacity of the absorption refrigeration equipment, obtain the driving steam flow rate based on the cooling capacity of the absorption refrigeration equipment, and obtain the turbine power change based on the driving steam flow rate.

[0066] The method for obtaining the cooling capacity Q0 of the absorption refrigeration equipment is as follows:

[0067]

[0068] Where RH0 is the intake humidity, D is the air moisture content, F0 is the air flow rate, h is the air moisture content, T1 is the cooled air temperature, T0 is the gas turbine intake temperature, and T... b Dew point temperature;

[0069] Calculate the dew point temperature T corresponding to the design parameters. b The method to obtain it is as follows:

[0070]

[0071] The absorption refrigeration equipment drives a steam flow rate F CQ The method to obtain it is as follows:

[0072]

[0073] Where Q0 is the cooling capacity of the absorption refrigeration equipment, COP is the energy efficiency coefficient of the refrigeration equipment, and H CQ The steam enthalpy of the steam extracted from the turbine to the absorption chiller, H DW This refers to the return water enthalpy of an absorption chiller.

[0074] Steam turbine power change ΔW st The method to obtain it is as follows:

[0075]

[0076] Among them, W st0 For the turbine load, F MS Main steam flow rate, H MS Main vapor enthalpy, H EX This refers to the exhaust enthalpy of the steam turbine.

[0077] S3. Obtain the unit power increment and auxiliary machine power consumption curves, and obtain the unit net power change based on the unit power change, turbine power change and auxiliary machine power consumption curves.

[0078] The change in net power of the unit ΔWu The method to obtain it is as follows:

[0079] ΔW u =ΔW g -ΔW st -ΔW a

[0080] Wherein, ΔW a To fit the power consumption of auxiliary equipment in refrigeration equipment, ΔW st For the change in turbine power, ΔW g For changes in unit power;

[0081] Fitting the power consumption ΔW of auxiliary equipment for refrigeration equipment a The method to obtain it is as follows:

[0082]

[0083] Where d and e are fitting constants characterizing the variation of power consumption of the refrigeration equipment with the refrigeration capacity, and Q0 is the refrigeration capacity of the absorption refrigeration equipment.

[0084] S4. If the change in net power of the unit and the increment of unit power meet the constraints, the performance parameter table of the intake cooling system is obtained, and the power evaluation of the intake cooling system is realized.

[0085] The net power change and the power increment of the unit satisfy the constraint condition ΔW u >ΔW0; if ΔW u If ≤ΔW0, let T1=T1-ΔT be substituted into the turbine power change, until the unit net power change and unit power increment satisfy the constraint conditions and the cycle ends; where ΔT is the temperature change value in the iterative calculation process, and ΔT is taken as 0.1.

[0086] like Figure 2 The diagram shown is a detailed flowchart of a power evaluation method for an absorption refrigeration gas turbine intake cooling system proposed in this invention. A detailed description is provided below with reference to examples:

[0087] A. The obtained unit design parameters include:

[0088] Unit load W0 = 61.467MW, gas turbine inlet air temperature T0 = 33℃, inlet air humidity RH0 = 80%, air flow rate F0 = 610.7t / h, main steam flow rate F MS =65.1t / h, main steam enthalpy H MS =3509kJ / kg, steam enthalpy H of steam extracted from turbine to absorption chiller CQ =2966kJ / kg, enthalpy of return water from absorption chiller H DW =762kJ / kg, turbine exhaust enthalpy H EX =2402kJ / kg.

[0089] The absorption chiller to be used in the renovation has a coefficient of performance (COP) of 1.4. When the cooling capacity Q0 = 775 kW, the auxiliary power consumption ΔW is... a When the cooling capacity Q0 = 1500kW, the auxiliary power consumption ΔW of the equipment is 115kW. a =200kW.

[0090] The fitting formula for the ambient temperature correction curve f(T) of a combined cycle unit is:

[0091] f(T) = -9.2818 × 10 -5 ×T 2 -5.6910×10 -4 ×T+1.0452

[0092] Refrigeration equipment auxiliary power consumption curve ΔW a The fitting formula is:

[0093]

[0094] B. Given the expected power increase of the unit after adding an absorption gas turbine inlet cooling system, ΔW0 = 2MW. Assume the air temperature after inlet cooling is T1 = (33-1)℃, and calculate the unit power change ΔW. g :

[0095]

[0096] C. Calculate the dew point temperature T corresponding to the design parameters. b :

[0097]

[0098] When T1 = 33℃, T1 > T b Calculate the cooling capacity Q0 of the refrigerant refrigeration equipment:

[0099] Q0 = F0 × [h] out (RH0,T1,D0(RH0,T0))-h in (RH0,T0)]

[0100] =400×1000×(100.0-98.9)kJ / h=421786kJ / h

[0101] In a certain renovation project, the absorption chiller to be used has a coefficient of performance (COP) of 1.4. Calculate the required steam flow rate F for the absorption chiller based on this. CQ :

[0102]

[0103] D. Calculate the turbine power change ΔW st :

[0104]

[0105] E. Net power change of computer group ΔW u :

[0106] ΔW u =ΔW g -ΔW st -ΔW a =(0.460-0.020-0.019)MW=0.421MW

[0107] F, at this time ΔW u =0.421MW is less than ΔW0 = 2.5MW, let T1 = T1 - 0.1℃ = 29.9℃, and repeat steps B to D. Continue the calculation, when T1 = 29.0℃, T1 <T b The formula for calculating the cooling capacity Q0 of an absorption refrigeration unit changes. Continuing the calculation, when T1 = 25.4℃, ΔW... u =2.488MW; when T1 = 25.3℃, ΔW u =2.508MW, calculation complete. Detailed calculation process tables are shown in Tables 1 and 2, and the calculation results are shown in the graph. Figure 3 .

[0108] Table 1. Unit Design Parameters for Case Project

[0109]

[0110]

[0111] Table 2 Calculation Table for Case Projects

[0112]

[0113] This invention proposes a power evaluation system for the intake air cooling system of an absorption refrigeration gas turbine, such as... Figure 4 As shown, it includes a unit power change acquisition module, a turbine power change acquisition module, a unit net power change acquisition module, and a constraint condition determination module;

[0114] The unit power change acquisition module is used to acquire the unit load and the fitted performance correction curve, and to acquire the unit power change based on the fitted performance correction curve and the unit load.

[0115] The turbine power change acquisition module is used to acquire the cooling capacity of the absorption refrigeration equipment, acquire the driving steam flow rate based on the cooling capacity of the absorption refrigeration equipment, and acquire the turbine power change based on the driving steam flow rate.

[0116] The unit net power change acquisition module is used to acquire the unit power increment and auxiliary machine power consumption curve, and to acquire the unit net power change based on the unit power change, turbine power change and auxiliary machine power consumption curve.

[0117] The constraint condition determination module is used to determine whether the net power change and power increment of the unit meet the constraint conditions. If so, the performance parameter table of the intake cooling system is obtained, and the power evaluation of the intake cooling system is realized.

[0118] The terminal device provided in this embodiment of the invention includes: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps in the various method embodiments described above. Alternatively, when the processor executes the computer program, it implements the functions of each module / unit in the various device embodiments described above.

[0119] The computer program can be divided into one or more modules / units, which are stored in the memory and executed by the processor to complete the present invention.

[0120] The terminal device may be a desktop computer, laptop, handheld computer, or cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0121] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0122] The memory can be used to store the computer program and / or module. The processor implements various functions of the terminal device by running or executing the computer program and / or module stored in the memory and calling the data stored in the memory.

[0123] If the modules / units integrated into the terminal device are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0124] The power evaluation method for the intake air cooling system of an absorption refrigeration gas turbine proposed in this invention has the following advantages:

[0125] 1) Under given expected benefits, this method combines unit design parameters and uses simple mathematical formulas to avoid complex thermodynamic simulation modeling. It can quickly and accurately calculate the parameters of the intake air cooling system of the absorption refrigeration gas turbine, and guide the feasibility study and equipment design and selection of the retrofit project.

[0126] 2) Given the expected benefits of adding an absorption refrigeration gas turbine intake cooling system, based on the unit design parameters and performance correction curves, the key parameters such as the heat absorption of the refrigeration equipment, auxiliary power, steam extraction rate of the turbine, and power change are calculated through iterative methods. The difference between the calculated value and the target value of the unit's net power change is continuously reduced, and finally the parameters of the gas turbine intake cooling system under the condition of meeting the expected benefits are obtained.

[0127] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method of power assessment of an absorption refrigeration engine intake cooling system, characterized by, Includes the following steps: Obtain the unit load and fitted performance correction curve, and obtain the unit power change based on the fitted performance correction curve and unit load; Obtain the cooling capacity of the absorption refrigeration equipment, obtain the driving steam flow rate based on the cooling capacity of the absorption refrigeration equipment, and obtain the turbine power change based on the driving steam flow rate; Obtain the unit power increment and auxiliary machine power consumption curves, and obtain the unit net power change based on the unit power change, turbine power change and auxiliary machine power consumption curves; If the changes in net power of the unit and the increment of unit power meet the constraints, the performance parameter table of the intake cooling system can be obtained, and the power evaluation of the intake cooling system can be realized. The fitting performance correction curve f ( T The method to obtain ) is as follows: The power change of the unit Δ W g The method to obtain it is as follows: The absorption refrigeration equipment drives the steam flow. F CQ The method to obtain it is as follows: Steam turbine power change Δ W st The method to obtain it is as follows: The change in net power of the unit Δ W u The method to obtain it is as follows: Fitting the power consumption Δ of auxiliary equipment for refrigeration W a The method to obtain it is as follows: Changes in net power of the unit and unit power increment The constraints are satisfied. ;like ,make Substitute this into the turbine power change, and continue the cycle until the net power change and power increment of the unit satisfy the constraint conditions and the cycle ends; where Δ T This represents the temperature change value during the iterative calculation process; in, a , b and c All of these are fitting constants characterizing the variation of the output power of a combined cycle unit with the gas turbine inlet air temperature. T For temperature; Q 0 represents the cooling capacity of the absorption refrigeration equipment, and COP represents the coefficient of performance (COP) of the refrigeration equipment. H CQ The steam enthalpy is obtained by extracting steam from the steam turbine and transferring it to the absorption chiller. H DW For the return water enthalpy of the absorption chiller, W st0 For turbine load, F MS Main steam flow rate, H MS Main vapor enthalpy, H EX For the exhaust enthalpy of the steam turbine, Δ W a To fit the power consumption of auxiliary equipment in refrigeration equipment, Δ W st For the change in turbine power, Δ W g For changes in unit power; d and e All of these are fitting constants characterizing the variation of power consumption of refrigeration equipment with cooling capacity. Q 0 represents the cooling capacity of the absorption refrigeration equipment. W 0 represents the unit load. T 0 represents the gas turbine intake temperature. T 1 represents the air temperature after cooling. This represents the change in unit power at the gas turbine inlet air temperature. This represents the change in unit power when the air temperature is cooled.

2. The power evaluation method for the intake air cooling system of an absorption refrigeration gas turbine according to claim 1, characterized in that, The cooling capacity of the absorption refrigeration equipment Q The method to obtain 0 is as follows: in, RH 0 represents the intake humidity. F 0 represents airflow. T 1 represents the air temperature after cooling. T 0 represents the gas turbine intake temperature. T b This refers to the dew point temperature. Calculate the dew point temperature corresponding to the design parameters. T b The method to obtain it is as follows: 。 3. A power evaluation system for an absorption refrigeration gas turbine intake cooling system, characterized in that, The method described by any one of claims 1 to 2 includes: A unit power change acquisition module is used to acquire the unit load and the fitted performance correction curve, and to acquire the unit power change based on the fitted performance correction curve and the unit load. A turbine power change acquisition module is used to acquire the cooling capacity of the absorption refrigeration equipment, acquire the driving steam flow rate based on the cooling capacity of the absorption refrigeration equipment, and acquire the turbine power change based on the driving steam flow rate. The unit net power change acquisition module is used to acquire the unit power increment and auxiliary machine power consumption curve, and to acquire the unit net power change based on the unit power change, turbine power change and auxiliary machine power consumption curve. The constraint condition determination module is used to determine whether the net power change and the power increment of the unit meet the constraint conditions. If so, the performance parameter table of the intake cooling system is obtained, and the power evaluation of the intake cooling system is realized.

4. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes a computer program, it implements the steps of the power evaluation method for the intake air cooling system of an absorption refrigeration gas turbine as described in any one of claims 1 to 2.

5. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the power evaluation method for the intake air cooling system of an absorption refrigeration gas turbine as described in any one of claims 1 to 2.

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