Research on Energy Saving of Air Conditioning System of Constant Temperature and Humidity Test Chamber

A detailed analysis of the air treatment process of the commonly used pure steam humidification and primary return air constant temperature and humidity air conditioning units in summer, winter and transitional season modes is carried out. Constant Temperature and Humidity Test Chamber The control decomposition of temperature and humidity parameters is carried out, and the control realization is given. block diagram. Based on the original constant temperature and humidity air conditioning unit, a new energy-saving constant temperature and humidity air conditioning system was proposed. The realization of the new constant temperature and humidity air-conditioning system technology was analyzed, and the energy consumption was calculated at the same time. On the basis of the new air-conditioning system, the realization of automatic control of temperature and humidity is introduced.Constant Temperature and Humidity Test Chamber  The results of the feasibility study of the new constant temperature and humidity air conditioning system show that this type of air conditioning system has universal applicability. It is proposed to apply variable dew point adjustment method to control indoor relative humidity.

It is proposed to apply fuzzy control to the control strategy of the constant temperature and humidity air conditioning system to control the humidity. The specifications of the constant temperature and humidity test chamber apply the fuzzy PID control strategy to the constant temperature and humidity air conditioning system, and the cascade fuzzy control of the dew point adjustment in summer and winter modes is obtained. Control closed loop system. Carry out indoor temperature and humidity control for an engineering example, apply variable dew point adjustment cascade fuzzy control closed-loop system to control indoor humidity, and use PID control to control indoor temperature.

With the help of related tools,Constant Temperature and Humidity Test Chamber  the summer and winter working conditions of the engineering example were simulated. The simulation results show that: applying the new constant temperature and humidity air conditioning system proposed in this paper, using variable dew point adjustment cascade fuzzy control closed-loop system to control indoor relative humidity and PID control to control indoor temperature can reach the temperature and humidity required by the project. Precision requirements.