Investigation On Organic Phase Change Materials In Energy Storage Air Conditioning System

In the situation of energy scarce and electronic power intense in China,Storage Air Conditioning technology as the current peak load regulation of all available technology in the most economical and most effective way,can not only balance the electric power grid load,but also be important to improve energy use rate and ease China's energy crisis.In article,we focuse on Storage Air Conditioning systems in the core-phase change cooling storage materials,select Octanoic acid,Capric acid,Lauric acid,Cyclohexanone,Dodecanol,as five organic materials study objects,carry out a series of experimental research.Major work is as follows:1.Combinating with the current domestic and foreign scholar's research results, sumed up the Storge Air Conditioning system's general design and economic analysis.2.In accordance with the request of phase change materials in Storge Air Conditioning system,screened Octanoic acid,Capric acid,Lauric acid,Cyclohexanone, Dodecanol as the object of study.3.Changing the appropriate mix ratio of the five selected phase change materials, use DSC to carry on the transformation temperature and changes the enthalpy test.Final results show that when the mass ratio of Dodecanol and Octanoic acid is 2:3,the phase transition temperature is 6.2℃,phase change enthalpy:173.2 J/g,the phase change temperature suits the request of phase change cooling storage materials in Storge Air Conditioning system:the enthalpy is big.4.Designed and built experimental vapor compression refrigeration system, through trial-run,the system can make the indoor temperature of evaporation room to reduce to-15℃.Repeatedly running results show that the systems can operate stably.5.Configged 250.9g mixture of Dodecanol and Octanoic with the mass ratio 2:3, placeed it in the experiment system to carry on the test.The final result indicated that its transformation temperature is 6～9℃,the multiple experimental results tend to be consistent,phase changes is stable,and tally good with the DSC test's experimental result.This phase change material has an effect of energy saving with energy saving experiment.Taking it as the phase change cooling storge in Storge Air Conditioning system has great research value.