Solar Heating and Air Conditioning System. Final Report

摘要

This modularly constructed system is primarily designed for attic or clerestory installation although it may be adapted to function as a dwelling appendage or as a separate unit. Its aim, as a solar heating system, is to approach efficiencies attained only by active systems but minimize their inherent expense and maintenance problems by eliminating the requirements for recirculating collectors, plumbing, pumps, heat exchangers, filters, getters, etc. The prime uniqueness of this design, however, is the ability to convert the major elements of the heating system into an active evaporative cooling unit during summer months. As there is usually more energy expended for summer air conditioning than winter heating the energy cost effectiveness of a year-round device should prove more than double that of a solar heating device. Innovations incorporated in this design development include evaporators, panel seals, operating mechanics, instrumentation. Since it requires both summer and winter seasons to analyze the effectiveness of this design, only the summer cooling mode has been examined at this writing. A supplemental report covering winter heating must be submitted at a later date. The model used for this experiment was able to reduce the temperature of an attic area from 120 exp 0 F to an average of 79 exp 0 F with an outside daytime average ambient temperature of 89 exp 0 F and a relative humidity of 70%. (ERA citation 10:000413)