Energy transfer simulation for radiantly heated and cooled enclosures

Conference · Fri Nov 01 04:00:00 EST 1996

OSTI ID:392436

Chapman, K S; Zhang, P ^[1]

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1. Kansas State Univ., Manhattan, KS (United States). Dept. of Mechanical Engineering

This paper presents the development of a three-dimensional mathematical model to compute heat transfer within a radiantly heated or cooled room, which then calculates the mass-averaged room air temperature and the wall surface temperature distributions. The radiation formulation used in the model accommodates arbitrary placement of walls and objects within the room. The convection model utilizes Nusselt number correlations published in the open literature. The complete energy transfer model is validated by comparing calculated room temperatures to temperatures measured in a radiantly heated room. This three-dimensional model may be applied to a building to assist the heating/cooling system design engineer in sizing a radiant heating/cooling system. By coupling this model with a thermal comfort model, the comfort levels throughout the room can be easily and efficiently mapped for a given radiant heater/cooler location. In addition, obstacles such as airplanes, trucks, furniture, and partitions can be easily incorporated to determine their effect on the radiant heating system performance.

• OSTI ID: 392436
• Report Number(s): CONF-960254--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AIR CONDITIONING
COOLING SYSTEMS
DESIGN
ENERGY EFFICIENCY
HEATING SYSTEMS
HOUSES
HYBRID SYSTEMS
MATHEMATICAL MODELS
POSITIONING
RADIANT HEAT TRANSFER
RADIANT HEATERS
RECOMMENDATIONS
SIZE
THREE-DIMENSIONAL CALCULATIONS