부산대학교 도서관

The present status of the Solar Controls R and D program element is outlined and significant technical accomplishments are discussed. Fifteen projects are either currently underway or recently concluded, of which eight resulted from the RFP issued in the spring of 1977. Future directions of the program element are outlined in connection with the drafting of a DOE controls plan, to be completed before the end of the calendar year. Two novel controllers have been designed. Prototypes are now under construction, and will be available for testing. One of these controllers is based on microprocessor technology, while the other uses more conventional circuitry (including electro-magnetic relays, etc.) combined with a novel adaptive mechanism that changes the control set points as a function of outdoor ambient temperatures. Studies of offpeak thermal energy storage strategies indicate that energy savings due to improved control strategies can be ultimately traced to either a lower average temperature in the heated space, or to lower average storage tank temperatures.