Analysis of Advanced Thermal Storage Subsystems for Solar Heating and Cooling. Final Report, October 1, 1977-September 30, 1978

摘要

Computer models for heating, cooling, and advanced thermal storage subsystems have been developed in TRNSYS-compatible form. Simplified models for solar collection and building loads have been written, together with routines that simulate a variety of space conditioning and advanced storage devices. Simulations using various storage concepts have been carried out for four major applications: (1) space and domestic hot water heating; (2) solar assisted heat pumping; (3) absorption air conditioning; and (4) thermally activated heat pumping. Overall performance differences traceable to the performance of a storage unit were generally small. In particular, from an operational point of view, the H sub 2 SO sub 4 /H sub 2 O storage system behaves in a fashion remarkably similar to water tank storage: collector temperatures (and efficiencies) were nearly identical. However, over the same temperature range, the H sub 2 /SO sub 4 /H sub 2 O system offers a factor of four advantage in volume, which may be offset in some climates by the requirement for a heat source at or above 5 exp 0 C. (ERA citation 05:031977)