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Research On Wind And Solar Complementary Combined Absorption Heat Pump System

Posted on:2021-05-23Degree:MasterType:Thesis
Country:ChinaCandidate:Y J LiuFull Text:PDF
GTID:2392330614455384Subject:Power engineering
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The energy consumption for buildings has always accounted for a large proportion of energy consumption.More than half of China’s territory needs heating in winter.Thermal utilization of wind energy is a new way to produce energy.Compared with wind power generation,it can solve the phenomenon of wind abandon and power limitation caused by cogeneration of heat and power.It is a trend in future to use Wind energy and other renewable energy for saving the energy consumption in a bulding.The wind-solar hybrid drive absorption absorption heat pump system combines the wind-induced heat and solar heat collection to generate a high-temperature heat source to drive the absorption heat pump system.Wind heating is the conversion of wind energy into mechanical energy and then into thermal energy.All mechanical energy can be converted into thermal energy.Compared with wind power heating,the number of times of energy conversion is reduced and the energy utilization efficiency is improved.Firstly,the corresponding mathematical model was established through systematic analysis and the model was written by using Simulink.The model was verified by the experimental platform of component heat pump.By comparing the simulation results with the test results,the error range is 10%,which proved the accuracy of the model.Secondly,design the heating tank.By combining agitation heating with damping heating,and the flow field and calorific value in the heating tank were studied by Fluent.The results show that the temperature in the heating tank gradually increases from bottom to top,and the heat generation reaches the expected target;at low wind speed,the heat produced by the solar plate collector can also meet the requirements.Finally,analyze the system of feasibility.Taking Zhangjiakou as an example,De ST was used to simulate the annual hourly heat load of a small house in 1991.92m2.System performance coefficient can reach 1.811,and wind energy is the main heat energy.Compared with several traditional heating methods,this system can save 64.67 million yuan in operating costs,save 60.062 tce of coal,and reduce pollutant emissions.Figure 41;Table 18;Reference 51...
Keywords/Search Tags:absorption heat pump, wind heating, simulation, renewable energy utilization
PDF Full Text Request
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