F - chart is a useful compute program for analysis and design of active and passive solar heating systems . in this article , the program had been improved to estimate the long - term average thermal and economic performance of active solar heating system . the program of f - chart was transformed from dos to windows 首先,對分析太陽能供熱系統(tǒng)長期性能的f - chart程序進(jìn)行了分析和改進(jìn),并用vb和fortran混合語言編程,實現(xiàn)了分析程序的可視化,采用數(shù)據(jù)庫技術(shù)對大量的氣象參數(shù)進(jìn)行管理,為用戶提供了一個方便的太陽能供熱系統(tǒng)分析軟件。