RESEARCH ON CARBON EMISSION REDUCTION POTENTIAL OF LIQUID DESICCANT AIR-CONDITIONING SYSTEM FOR FOOD WAREHOUSE
Air-conditioning system is a big energy consumer and carbon emitter in food warehouse buildings,and energy conservation of the system plays an important role in achieving a decarbonized future in food storage industry.In this study,on-site measurements were conducted to reveal carbon emission reduction potential of a liquid desiccant system.The results reveal that a carbon emission reduction rate of 10.3%can be achieved by the liquid desiccant system during the cooling season.Due to the characteristics of low humidity difference and huge air volume,the fans account for nearly 50%of the total energy consumption of the system.Energy-efficient operation of the system cannot be achieved without considering the energy-saving in fans.It is indicated that the secondary return air system contributes to system performance improvement,and a recommended air volume ratio between the primary and secondary return air ranges 0.4~1.5.
heating ventilation and air-conditioningliquid desiccant dehumidificationfood factorycarbon reduction emission potentialbuilding energy efficiency