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Water source heat pump air-conditioning system operating parameter optimization control method

An air-conditioning system and a water-source heat pump technology, which is applied in heating methods, heating and ventilation control systems, heating and ventilation safety systems, etc., can solve the problems of water-source heat pump air-conditioning system operating parameter optimization, high system operating costs, and low system energy efficiency, etc. Achieve low cost, good energy saving and economic effect, good effect

Inactive Publication Date: 2013-12-18
TIANJIN UNIV RES INST OF ARCHITECTRUAL DESIGN & URBAN PLANNING
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AI Technical Summary

Problems solved by technology

However, the existing operation and management personnel have not optimized the operating parameters of the water source heat pump air conditioning system based on the operating data, resulting in low energy efficiency and high operating costs of the system
The main reason for the current situation is the lack of a scientific and simple method to help the operation and management personnel realize the optimal control of the water source heat pump air conditioning system under partial load conditions

Method used

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  • Water source heat pump air-conditioning system operating parameter optimization control method
  • Water source heat pump air-conditioning system operating parameter optimization control method
  • Water source heat pump air-conditioning system operating parameter optimization control method

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Embodiment Construction

[0045] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0046] A water source heat pump air conditioning system optimization control method, comprising the following steps:

[0047] 1) Obtain the water supply and return parameters of the terminal cooling equipment under different indoor and outdoor temperature differences

[0048] 1) Obtain the average heat transfer coefficient, area and indoor and outdoor design parameters of the building envelope according to the building construction drawings. Based on the above parameters, the functional expression of the building heat demand can be obtained:

[0049] Q b =Q t =KF(t in -t out )

[0050] In the formula:

[0051] Q b : building heat load, kWh;

[0052] K: Average heat transfer coefficient of enclosure structure, kW / (m 2 .k);

[0053] F...

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Abstract

The invention discloses a water source heat pump air-conditioning system optimization control method. The method comprises the following steps: I, obtaining supply water and backwater parameters of tail end cooling equipment under the condition of differences between indoor temperatures and outer temperatures; II, obtaining the operation data of a water source heat pump air-conditioning system; III, determining the energy consumption calculation module of a heat pump set under partial load condition; IV, determining the energy consumption calculation module of a water pump under the variable conditions; V, on the basis of the steps III and IV, obtaining the operating energy consumption of the water source heat pump air-conditioning system under different operating conditions, adopting the operating cost minimum as an objective function of system optimization control, and relating equations in the steps I, III, IV and V to perform programming solution, so as to obtain the optimal operating parameters of the water source heat pump air-conditioning system under different operating conditions. The method can realize the optimization control of the operating parameters of the water source heat pump air-conditioning system under the partial load condition.

Description

technical field [0001] The invention relates to the field of central air-conditioning control, in particular to an optimal control method for operating parameters of a water-source heat pump air-conditioning system. Background technique [0002] The design parameters and equipment selection parameters of the air conditioning system are obtained under outdoor design conditions, and the equipment selection is too large. In actual operation, the air conditioning system operates under part load conditions most of the time, and the design parameters are greater than the parameter requirements under part load of the system. For the water source heat pump air conditioning system, there are few water source heat pump air conditioning systems that optimize the operating parameters under some working conditions. Most of the system operates under the design flow and design outlet water temperature conditions, resulting in low operating efficiency of the system. High energy consumption...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
Inventor 李锋胡振杰张阳杨肖彭鹏田喆
Owner TIANJIN UNIV RES INST OF ARCHITECTRUAL DESIGN & URBAN PLANNING
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