An evaluation of thermal comfort and energy consumption for a surface-mounted ceiling radiant panel heating system
Conference
·
OSTI ID:87475
- NAHB Research Center, Inc., Upper Marlboro, MD (United States)
A review of literature revealed little relevant empirical evidence for energy savings and thermal comfort associated with ceiling, surface-mounted radiant heating systems. Empirical studies used to discuss the energy and thermal comfort performance of radiant heating systems made little or no distinction among the various types of radiant heating systems. Since ceiling, surface-mounted radiant panels-in contrast to other radiant systems-are fast-acting and deliver a much higher proportion of their output as radiant heat, they can have a substantial impact on both energy and thermal comfort performance. Testing the energy and thermal comfort performance in an occupied home could serve to expand the base of information on which discussions of various heating strategies are based. A surface-mounted, ceiling radiant heating system, an air-to-air heat pump system, and a monitoring data-acquisition system were installed in an occupied research home. Information on thermal comfort and energy consumption for alternating operation of the two heating systems was collected for approximately half of a heating season. This allowed a comparison of the radiant system and the more conventional air-to-air heat pump system. Also, data on energy consumption from a zoned electric baseboard heating system previously installed in the same house were available for comparison. Fast-acting radiant heating systems that can recover quickly from setback and target the delivery of heat to objects and occupants have a significantly reduced installed capacity in comparison to more conventional heating systems. In this study, for the same outdoor design conditions, the installed capacity of the radiant system was 2.5 times less than the electric baseboard system and two times less than that of the heat pump system.
- OSTI ID:
- 87475
- Report Number(s):
- CONF-950104--
- Country of Publication:
- United States
- Language:
- English
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