An air-conditioning system and method for comprehensive control of thermal and humid environment based on thermal comfort evaluation

Abstract

The invention provides a thermal and humid environment integrated control air-conditioning system and method based on thermal comfort evaluation. The comfort operating level and the corresponding PWV numerical range of an air conditioner are set in strict accordance with national standards, the air conditioner is made to have the humidification adjusting function, an average thermal sensation index PMV value is calculated by acquiring air temperature, relative air humidity, average radiation temperature, wind speed, metabolic rate and clothing thermal resistance and compared with a preset comfort PMV value interval, and the air supply speed, the refrigerating / heating operating state and the humidifying / dehumidifying operating state of the air conditioner are intelligently adjusted according to the comparison result, so that a target area is in a comfort state satisfying the human body, the comfort requirement of the human body is met, the thermal comfort environment of the target area is easily improved, and energy conservation and emission reduction of a building are promoted. The principle and parameter setting of the system and method are scientific, and the operation method is simple and easy to control and implement.

Description

technical field [0001] The invention relates to the field of energy saving and environmental protection, in particular to an air conditioning system and method for comprehensively controlling heat and humidity environments based on thermal comfort evaluation. Background technique [0002] With the development of economy and technology and the continuous improvement of living standards, people have higher and higher requirements for thermal comfort of indoor environment. It is particularly important to create a healthy, comfortable, environmentally friendly and energy-saving indoor environment. Air conditioners have become the main tool for people to create an indoor environment at present. [0003] The existing air-conditioning comfort control method is based on the PMV model proposed by Professor Fanger of the Technical University of Denmark, using the human thermal sensation index, based on the thermal balance of the human body, and combining the subjective feelings of psy...

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Problems solved by technology

[0007] In view of the above-mentioned deficiencies in the prior art, the problem to be solved by the present invention is how to provide an air-conditioning system and method for comprehensive control of thermal and humid environments based on thermal comfort evaluation, which can fully regulate the "Civil Building Indoor Thermal and Humid Environment Evaluation Standards" The parameters that affect the comfort level in the GBT 50785-2012 standard have a better ability to create a comfortable hot and humid environment in the target area. It is used to solve the existing air conditioning regulation technology, but only selects a single or two parameters for the isolated control target area. The ability of the adjustment method to create a comfortable hot and humid environment in the target area cannot meet the actual needs of people.

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