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一、引言太阳能是一种清洁能源,不污染环境,不破坏生态。目前太阳能利用最广泛最普及的要算太阳能热水器,为探索太阳能热水器的应用所带来的经济效益,本文以南京某太阳能设备厂的JZX-3型平板型直流式太阳能集热器为例,进行集热量和产水量的预测和经济效益的分析估算,供开发、推广、应用时参考。二、太阳能热水器集热量和产水量的预测 1989年JZX-3型平板型直流式太阳能集热器第二季度国家抽查检定FR(τα)=0.627,FRU_L=7.36W/m~2·℃,产品质量符合国家标准,由于选用优质铝合金寿命长,可减少用镀锌壳体作材料所需每年除锈刷漆的维修费用。集热器的安装需要在最佳倾角范围,一般
I. Introduction Solar energy is a kind of clean energy that does not pollute the environment and does not destroy the ecology. At present, solar energy is the most widely used and most popular solar water heater. To explore the economic benefits of the application of solar water heaters, this paper takes the JZX-3 flat-plate solar energy solar collector of a solar energy plant in Nanjing as an example. The estimation of heat collection and water production and the analysis and estimation of economic benefits are referenced for development, promotion and application. II. Prediction of solar water heater heat collection and water production In 1989, the JZX-3 flat plate type direct current solar collector was FR(τα)=0.627 in the second quarter and FRU_L=7.36W/m~2°C. The quality is in line with national standards. Due to the long service life of high-quality aluminum alloys, the maintenance cost of rust-removing paints for galvanized shells as materials is reduced. The installation of the collector needs to be in the best inclination range, generally