Ground Source Heat Pump And Solar Energy Combined Heating And Cooling Configuration Optimization Research

Haze phenomenon appeared frequently in recent years,it has seriously influencedpeople’s daily life, cause haze arch-criminal is non renewable energy inefficient use. Theenergy problem has gradually become the primary problems of all countries, energy savingand the use of renewable energy is an effective way to solve the energy problem.This topic is the soil source and solar energy utilization of two, to the Beijing climatebackground, the hourly load is simulated using the DeST software. Simulation analysis on thedifferent operating conditions by using TRNSYS simulation software, using solar energy asheat source in winter the whole system operating conditions, Simulation using soil source asheat source in winter the whole system operating conditions, two kinds of heat sourceoperation according to the different ratio of parallel operation system, two heat source by thesame proportion system in parallel operation.Based on the simulated system that using solar energy as heat source in wintercharacteristics of all system is due to the instability of solar energy supply, causing the systemperformance changes with time fluctuations, meet continuous cloudy and it is difficult to meetthe user requirements. Winter in the soil source for the operation characteristic of all heatsource system is due to the soil temperature change is not big, so the system performance isstable, but the coefficient of performance is not high. Two kinds of heat sources in differentproportion of parallel operation is feasible, and the two heat source configuration according tothe proportion of1:1system performance coefficient was the highest, and can make theiradvantages and disadvantages are complementary. The performance of the system isimproved and stability, the cost is cheaper than separate ground source heat pump system.The coefficient of performance of two kinds of heat source by the same proportion seriesoperation is higher than two kinds of heat sources in parallel. According to the winter loaddetermines the heat pump unit, the summer heat pump performance is low, the summer totake a pump parallel strategy, in order to heat pump unit to years of normal operation, theneed of auxiliary cooling tower cooling in summer.