村镇住宅太阳能热水系统的优化设计研究  

Optimal Study on the Design of Solar Hot Water Heater Applied in Rural Residential Buildings

作　　者：刘剑[1] 

机构地区：[1]华东建筑设计研究院有限公司,上海200041

出　　处：《节能技术》2015年第6期526-529,534,共5页Energy Conservation Technology

基　　金："十二五"国家科技支撑计划课题(2014BAJ01B02);"十二五"国家科技支撑计划课题(2013BAJ10B10)

摘　　要：以改善村镇住宅中常用的太阳能热水系统性能为目的,结合村镇地区的生活热水使用特点,分析了适宜的系统形式,并提出了一种以匹配全年热水用水量分布和太阳辐射分布为目标的系统设计方案。在此基础上,运用TRNSYS动态模拟的方法,比较分析了所提出的优化方案与常规方案的系统性能。结果表明:所提出的优化方案在夏季不出现系统过热,而常规方案在夏季有23.6 h的过热时长;此外,优化方案的全年太阳能保证率比常规方案高4%,且集热器增加的初投资成本可在7.7年内得到回收。In order to improve the performance of domestic hot water system applied in rural areas, a proper system type was analyzed according to the character of hot water consumption and, a new kind of system design was proposed based on the match of the layout of the hot water consumption and solar radia- tion. In addition, performance of the proposed and conventional designs were compared and analyzed by building dynamic simulation models with TRNSYS. Results indicated that： the proposed system had no o- verheat problem while the conventional system had the overheat duration of about 23.6 hours; the solar fraction of proposed system was 4% higher than the conventional one and the investment of added solar collectors could be paid back in 7.7 years.

关 键 词：建筑节能 村镇住宅 太阳能热水 系统优化 模拟分析 

分 类 号：TK515[动力工程及工程热物理—热能工程]