摘要
针对太阳辐照量、用户热水用量随时间段变化的情况,提出了分时间段计算的用户全年热水需能量、太阳热水系统年产能量计算公式及太阳热水系统年节能量与节能率的计算公式,还提出了用太阳热水系统利用率来优化太阳热水系统的设计方法,有助于设计一个合理、高效的太阳热水系统,提高太阳热水系统的利用率及减少投资回收期。该计算方法也可供其他可再生能源利用系统计算时参考。
According to solar radiation and hot water consumption varied with seasons,formulas were derived to calculate householder＇s annual hot water demand and output of a solar water heater,and estimate energy saving quantity and energy saving rate of hot water demand.A design method was also proposed to optimize the solar water heater system in terms of utilization rate,which will be useful for design of rational and high efficient solar water heater system,with the view of enhancing utilization rate and less payback period of initial investment.This method can provide reference for calculation of other renewable energy utilization system.
出处
《能源工程》
2011年第4期6-9,19,共5页
Energy Engineering
关键词
太阳能
热水系统
节能量
节能率
计算
solar energy
hot water system
energy saving quantity
energy saving rate
calculation
