Performance Analysis And Optimization Of CO2 Heat Pump Driven Liquid Desiccant System

As the rapid increasing of economic and population over the world,energy saving has caused more and more attention.Traditional air-conditioning system not only is weak at accurate control of air humidity,but also cause a lot of energy waste in dehumidification process.Liquid desiccant system solved both problems and have high efficiency.Heat pump driven liquid desiccant system is one of the liquid desiccant systems which have attracted many attentions in recent years.The C02 heat pump driven liquid desiccant system proposed in this paper is found to be able to improve system performance by simulation method.Results show the COP could be improved by 6.2-31.4%using C02 instead of R22.Extra condensing heat could be reduced by 13.4%at most.Orthogonal tests are also conducted in this paper to find out important structural parameters.Tests results suggested that NTUdeh is the most important parameter while NTUreg is the second.