By George Löf
Lively sun structures is quantity 6 in a chain that surveys advances in solar power examine because the oil surprise of the early Seventies. Books within the sequence rfile specifically the interval 1973 to 1985, which spawned a wealthy array of federally financed technological courses and advancements facilitating the sensible use of sun energy.The twenty-two contributions in energetic sun structures introduce layout, research, and regulate equipment for lively platforms and canopy advances within the interconnected applied sciences for water heating, area heating, and house cooling. They convey that, with potent advertising and with environmental expenditures factored into person purchaser judgements, there's robust capability for sun water heating and house heating, and that sunlight cooling has power yet wishes additional improvement to turn into commercially practicable. the main points of the fabrics keen on those applied sciences are lined in quantity five, sun creditors, power garage, and Materials.George Löf is Professor Emeritus and Senior consultant within the solar power functions Laboratory at Colorado nation collage.
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One must also keep in mind that designs are based on average or typical years, that a particular year's weather may be very different from the average, and, thus, that performance for that year may be better or poorer than average. There is no way of avoiding the use of historical meteorolog ical data to predict future performance. Design methods can be further improved and extended to new kinds of systems. Education of users of the methods will improve the applica tions that are being made of existing and new methods, and future docu mentation of the methods should be aimed at making designers more aware of the importance of the range of design factors that can affect system performance.
The general transient system simulation program, TRNSYS (Klein et these applications. aI. 1973) has proved useful for However, the direct use of detailed computer simulations in the routine design of each solar energy system is not satisfactory. Much time, money, and expertise is required to obtain useful results from a simulation. In s. A. Klein 40 addition, access to computer facilities and hourly meteorological data for the location of interest are required. The widespread use of solar energy requires simplified design procedures, especially for standard types of sys tems where the use of simulations cannot be justified.
1974. Solar concentrators of novel design. gy 16 :89. , and H. Hinterberger. 1975. Principles of cylindrical concentrators for solar energy. Solar Energy 17 :255. , B. O'Doherty, and R. Judkolf. 1981. The implementation of an analytical verification technique on three building energy analysis codes. Proc of ASME 3rd Annual Solar Energy Con/. Reno,NV. Wuestling, M. ,S. A. Klein,and J. A. Duffie. 1985. Promising control alternatives for solar heating systems. ASME, J. Solar Energy Eng. 1 07 :215.