Feasibility Study And Energy Consumption Analysis Of Water Source Heat Pump In An Office Building By The Weihe River

With the development of society,energy and environmental problems are becoming more and more prominent.Building energy consumption has become an important part of energy consumption in China.Therefore,groundwater heat pump has emerged as a green energy-saving air conditioning technology.In recent years,groundwater source heat pump system has developed rapidly and widely used,but the application of many projects lack of analysis of the hydrogeological conditions and applicability of the region.To this end,this project aims at a detailed analysis of hydrogeological evaluation of an office building on the Weihe River in Xi'an,and compares the economic analysis with the traditional scheme.Combining theoretical analysis and practice to better guide the promotion of groundwater source heat pump system application.Firstly,the working principle of the heat pump system and the advantages and disadvantages of several comparative analysis,analysis to determine the applicable conditions for each system.According to the hydrogeological and site conditions of this project,the suitability evaluation model of groundwater source heat pump system and ground source heat pump system is established by AHP.Then,combining the two systems recharge mode economy,environmental impact analysis and groundwater source heat pump,we analyze the three ways recharge groundwater source heat pump(1)Put the part of the back of irrigation recharge coming down through the back rest(2)The recharge water is drained directly into the Weihe River to carry out natural subsidence recharge;(3)All the recharge water is recharged through the recharge well.Comparison of groundwater source heat pump system to determine the program,using some recharge water recharge by recharging into the recharge,the rest of the recharge water into the pond into the water.Finally,according to the designed groundwater source heat pump system,the initial investment is calculated by using the DEST software to simulate the annual energy consumption calculation by using the load frequency method and compared with the traditional system scheme economically.The annual cost of groundwater source heat pump system is 18% less than that of chiller unit and coal boiler.The research of this topic has a good reference for the design of underground water source heat pump system and its applicability and economic evaluation.