Application Research About Air Energy Combined With Solar Renewable Energy System In Changsha Public Housing District

With the development of national economy,the energy consumption and environment pollution are increased.As a renewable green energy,Solar energy,air energy,geothermal energy,wind energy,tidal power gradually draw people's attention.compared with other countries,renewable energy research and application start late in China.As the government economy input and policy support,the application of renewable energy industry in our country gradually has been promoted.Air energy and solar energy has the potential to replace part of fossil energy consumption in the application of building.This research mainly centers on the air energy and solar energy to conduct the analysis of application of the hot water system in Changsha.The first chapter briefly introduces the solar hot water system research background and its significance,and the solar energy is a kind of clean and renewable energy,which can be applied to produce living hot water in the building.Meanwhile,the air energy has been explored and used rapidly,especially for the preparation of living hot water in residential buildings and public buildings.And the combination of solar energy and air energy can be used in living hot water preparation system be complement for each other and take full advantages of the two kinds of renewable energy.The second chapter analyze the solar energy utilization technology and air energy can be used in heat pump technology and development situation at home and abroad,based on the theoretical analysis of the utilization principle and characteristics of solar energy and air energy.The third chapter combined with Changsha regional climate characteristics,analyzes the combination of solar hot water with air energy used in heat pump hot water system with the feasibility of a public housing community in Changsha by taking into the consideration of climate and season change.The fourth chapter is about the introduction of solar collectors and heat load ratio of air energy in order to carry out the heat pump optimized design,which is conducted under the premise of community living hot water demand,the best energy-saving benefit,and the system structure design.The fifth chapter analyzes the design of solar hot water system with the combination of air energy saving and environmental benefits.Besides,system not only can reduce energy consumption,but also save the cost of system operation,meanwhile,the system operation pollution for environment can be reduced.The combination renewable energy can be used for the preparation of living hot water,nevertheless,the initial investment is larger and many factors should be taken into consideration in the design process,such as the local climate,geography,engineering characteristics,However,the combination of solar energy technology with air energy can be complement for each other in the process of living hot water preparation,which will have good economic and environmental benefits for civil buildings,especially for the densely public rental buildings.