| Popis: |
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/sup 0/C. |
