一种面向建筑空调的太阳能跨季节应用系统节能性分析

Energy-saving Analysis of a Solar Energy Cross-season Application System for Building Air Conditioning

我国建筑采暖和空调能耗在社会总能耗中占有较大的比重,增加太阳能等可再生能源在建筑中的应用是实现能源与环境可持续发展的一条途径。太阳能光伏/光热(PVT)技术可最大限度地利用太阳能,但目前太阳能利用受天气、季节性气候影响而无法稳定提供能量,并且PVT系统的发电和产热效率相互制约。本文提出一种新颖的PVT系统,包含PVT板、热泵机组、地埋管、辅助热源或辅助冷却塔、多功能逆变器、电化学储能装置、热水储水箱、电控柜等,可实现太阳能资源全年的最大化应用,满足建筑空调、热水、采暖和供电需求。

China′s building heating and air conditioning energy consumption accounts for a large proportion of the to⁃tal energy consumption in society,increasing the application of renewable energy such as solar energy in buildings is a way to achieve sustainable development of energy and environment.Solar photovoltaic/photothermal(PVT)technol⁃ogy can maximize the use of solar energy,but the current solar energy utilization is affected by weather and seasonal climate and cannot provide energy stably,and the power generation and heat generation efficiency of PVT systems are mutually restricted.This paper presents a novel PVT system,including PVT board,heat pump unit,buried pipe,aux⁃iliary heat source or auxiliary cooling tower,multi-functional inverter,electrochemical energy storage device,hot wa⁃ter storage tank,electric control cabinet,etc.,which can realize the maximum application of solar energy resources throughout the year,and meet the needs of building air conditioning,hot water,heating and power supply.