Evaporative Cooling Cold System Based On High Temperature Cold Water Desiccant Wheel Air Conditioning System

The rotary dehumidification air-conditioning system can realize independent control of temperature and humidity,so that the system can drive dehumidification by low-grade heat energy,and cool down by high-temperature cold source,which can well solve the energy waste,poor comfort,low dehum id ification and mold growth,these caused by the combined heat and humidity treatment of the traditional cooling and dehumidification method.However.The traditional cold water chiller produced temperature is low,which is used to increase the energy consumption for the desiccant wheel air conditioning system,so the system energy-saving advantage is difficult to reflect In view of the above problems,this paper studies the following:Using solar energy as a renewable heat source to propose high temperature cold water desiccant wheel air conditioning system,which establish a mathematical model for each component,use MATLAB software to program,and solve the mathematical model of the system.The results show that:high temperature cold water wheel dehumidification air conditioning system has the advantages of low energy consumption,The system is 1.5 higher than TCOP and COPth of the traditional wheel dehumidification air conditioning system,determines the water supply mode and water supply temperature of the system:under high humidity conditions,the water supply temperature is from 12.0? to 13.5?,the system uses a par allel water supply mode,the water supply temperature is less than 15.0?,the state parameter sized point of the system's export air can meet the needs of indoor thermal and wet comfort,and the temperature of the water supply from 12? to 18? under high humidity conditions.The system adopts the series water supply mode,the water supply temperature from 12.0? to 18.0?,the state parameter points of the system outlet air can meet the needs of indoor thermal and humid comfort.The experiment verifies the mathematical model of the high temperature cold-water rotary wheel dehumidification air conditioning system,the results show that the maximum error between the numerical simulation of the export air temperature of the wheel dehumidifier is 7.0%,and the maximum error between the output air temperature of the system is 13.0%.Based on the high temperature cold water rotary dehumidification air conditioning system to export the wet air of low dew point temperature,the high temperature cold water wheel dehumidification cold water system is proposed.The mathematical model of the system is established.The programming solution is carried out using MATLAB software,the results show that:the temperature of the imported air is raised from 28? to 40?,and the temperature of frozen water is raised from 16? to 17.4?,the moisture content of imported air increased from 13g/kg to 21 g/kg,the temperature of frozen water was raised from 15? to 17.5?,the regeneration temperature was raised from 60? to 100?,and the temperature of frozen water was reduced from 17.2? to 14.9?.Using the heat pump system as a regenerative heat source to propose the heat pump recycled wheel dehumidification air conditioning system,the system is established with the system's anti-humidity air conditioning system,compared with the single wheel dehumidifi cation air conditioning system:the system de-attached the heat reduction of 39.2%,the cold amount of the molysse reduction by 52.1%,the total loss of the molygle reduced by 44.2%,the efficiency of the heat pump regenerative wheel dehumidification air conditioning system is more mechanically perfect.Based on the wet air of low dew point temperature in the heat pump regenerative wheel dehumidifier air conditioning system,the hot pump regenerative wheel dehumidifying cold water system is proposed.The mathematical model of the system is established,the programming solution is carried out using MATLAB software.Imported air temperature increased from 28? to 40?,and the temperature of frozen water is raised from 16.5? to 17?.The moisture content of imported air was raised from 13g/kg to 21g/kg,the temperature of frozen water was raised from 15.4? to 16.2?.