Study On Applicability Of Energy Tower Heat Pump System Areas In Southern Hebei

In the traditional air conditioning system,the air source heat pump system is relatively energy-saving and environmentally friendly,yet still with a high heating efficiency.What's more,it is very utilitarian,which makes it a rather popular form of heat pump.However,there is a serious frosting problem of this system in winter,which brings energy consumption for defrosting,greatly harming energy efficiency.The Energy Tower Heat Pump System is a newly-born renewable heating system that is an upgraded version of the cooling tower.It combines the advantages of air source heat pump and water source heat pump.Through the heat exchange between the energy tower and the air,heat is extracted from the air and is fully utilized to heat or cool the building.Moreover,the initial investment of the energy tower system is low,and it is suitable for the area where the winter environment wet bulb temperature is above-9 °C,which is an ideal heating method in southern Hebei.In this paper,theoretical analysis and study of the case are used to analyze the principle of heat and mass exchange for open-type countercurrent energy towers.Take the HanDan area as an example,the comprehensive evaluation and analysis of the energy tower heat pump system is mainly analyzed from three aspects: financial evaluation,social benefit evaluation and heat transfer performance research.First of all,the article briefly describes the working principle,composition,types and characteristics of the energy tower heat pump system.Take the open energy tower as an example,the principle of heat exchange in the tower is introduced in detail.Secondly,it introduces the economic evaluation method,mainly studies and analyzes the two aspects of financial evaluation and social benefit evaluation.The financial benefit evaluation methods mainly include dynamic payback period,static payback period,net present value and internal rate of return;From the environmental point of view,based on the reduction in primary energy consumption and the reduction of greenhouse gases,it constitutes a comprehensive evaluation system for the system.Then,based on the project of Sui,the paper compares the energy consumption of the energy tower heat pump system and the air-cooled heat pump system,comparing the energy tower heat pump system and the air-cooled heat pump system through theeconomics,the environmental protection,and the practical application.It is worth promoting.In the end,the article analyzes the heat transfer factors of energy towers.By testing the air inlet dry bulb temperature,air moisture content,and brine inlet temperature,it calculates the heat transfer amount of the refrigerant on the energy tower side,and analyzes the collected and calculated data to find out the factors affecting the heat transfer;Through the calculation of outdoor air temperature measurement,unit heat generation and energy efficiency ratio EER,the influence of outdoor air temperature on unit heat and EER is analyzed.This article provides reference for application and promotion of energy tower heat pump technology in the northern region.