Cold radiation air conditioner fresh air control method and system

Abstract

The invention relates to a cold radiation air conditioner fresh air control method and system. The method includes the following steps that indoor real-time carbon dioxide concentration and relative humidity are acquired; the acquired indoor real-time carbon dioxide concentration and relative humidity, and a preset indoor carbon dioxide concentration initial value and a preset indoor relative humidity initial value are subjected to comparing operation, so that an operation result can be obtained; according to the operation result, a fresh air sub-system of a cold radiation air conditioner is controlled to be started or closed. According to the cold radiation air conditioner fresh air control method and system, by monitoring the indoor carbon dioxide concentration and relative humidity in real time, comparing operation is performed according to real-time monitored information and preset information to judge the indoor comfort degree so that conveying of indoor fresh air can be subjected to feedback control, and the indoor air quality and the heat comfort are made best; and meanwhile the energy of the fresh air sub-system of the cold radiation air conditioner can be effectively saved, and energy consumption is reduced.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, and more specifically, to a fresh air control method and system for cold radiation air conditioners. Background technique [0002] In the field of central air conditioning, the thermal comfort of end users is usually one of the important indicators used to evaluate whether the functions of the central air conditioning system are effectively realized. The so-called thermal comfort of the human body refers to the subjective and objective evaluation of the human body's satisfaction with the hot and humid environment. Thermal comfort is the human body's own feeling of comfort through thermal balance and the environmental conditions it feels. It is determined by the combination of physiology and psychology, and it is more focused on psychological feelings. It is an environmental parameter that affects the thermal comfort of the human body. The main parameters are air temperature, air...

AI Technical Summary

Problems solved by technology

The fresh air sub-system of a general cold radiation air conditioning system is set in three levels of large, medium and small according to experience in ordinary rooms and is controlled manually. In large rooms, the CO2 concentration sensor installed in the room is usually used to automatically control the required fresh air volume. The control method cannot meet the requirements of indoor thermal comfort (such as relative humidity) and energy saving

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