Performance Research On Heating Zero-energy Booth With Air-source Heat Pump Heat Exchangers And Pavilion Wall Integrated

Booths,also known as security guard posts,are commonly used in places such as squares,communities,properties,police stations,and other duty stations.In order to increase the use of renewable energy in the booths and get rid of the dependence on conventional energy sources,this paper designed a zero-energy heating booth integrated with a solar-powered air source heat pump heat exchanger and a kiosk wall to simplify the interior of the booth.Space and air source heat pump heat exchange equipment,at the same time integrated air-source heat pump system energy-saving high-efficiency,solar energy clean pollution-free and direct floor radiation heating and sanitary comfort.In-depth theoretical analysis of the thermodynamics of the kiosk evaporator of the integrated booths was carried out,and the other main components of the integrated booth were modeled and the whole machine operation simulation program was established.Based on this theory,an integrated booth was designed for the climatic conditions in Taiyuan,and the integrated air source heat pump system and auxiliary equipment were selected for calculation.Taking this as the experimental object,the experimental data of the evaporator gain,compressor input power,condenser heating,COP,and solar power in the integrated booth were obtained,and the simulation data obtained from the above mathematical model were obtained.For comparative analysis,the relative error is below 10%,which proves the correctness of the simulation model.In order to better embody the advantages of the integrated booths,a heating season is considered as the research cycle,and the integrated booths and traditional booths are compared for energy conservation,economy,comfort and environmental protection.By calculating the energy consumption of the integrated booths and traditional booths,the energy consumption and thermal load indicators of the integrated booths are in line with the standards of zero-energy buildings,which is 485.40 kwh lower than that of traditional booths;Compressor energy consumption,we can conclude that solar power generation can meet the energy requirements of the integrated booth in the heating season,which can save 1304.16 kwh,the total energy saving is 1789.56 kwh,equivalent to 219.93 kg of standard coal,and the integrated control booth heat pump COP is 3.22~4.96.The COP is 4.18;the annual value of the integrated booth is 697.54 yuan,and the cost savings during the life cycle of the booth are 41.38%;the PMV of the integrated booth is 0.24,PPD is 6.24,the PMV of the traditional booth is 1.08,PPD is 29.64,the former The comfort is higher;the former can reduce the release of 576.24 kg of carbon dioxide,1.87 kg of sulfur dioxide and 1.63 kg of nitrogen oxides in the heating season,demonstrating that the integrated energy-saving zero energy booth is feasible in Taiyuan and has great advantages and potential.Finally,FLUENT was used to simulate the effects of outdoor temperature,solar radiation and other environmental factors,and the structural parameters of the pavilion wall evaporator on the thermal performance per unit area of the kiosk evaporator and floor condenser.The condensing temperature and the structural parameters of the floor condenser were also studied.The impact on the surface temperature of the floor,thus providing the corresponding theoretical support for the performance optimization of the kiosk evaporator and floor condenser.Many influencing factors should be taken into account.From the perspective of heat transfer effects and economic cost,a rational and economical integration booth should be designed.