Comparison of numerical model with ashrae design procedure for warm water concrete floor heating panels
Conference
·
· ASHRAE Trans.; (United States)
OSTI ID:7242170
The ASHRAE design recommendations for radiant heating panels are reviewed and evaluated using results computed from numerical mode. The panel configuration that was considered consists of hot water pipes buried in either a bare or a covered concrete slab floor with a concrete footing and perimeter insulation. The numerical model is described in detail and uses a finite control volume based solution method. Particular parameters of interest are the downward and edgewise heat loss, the panel thermal resistance, and the required mean water temperature. Results of the numerical model were compared with prior experimental results and agree qualitatively. The ASHRAE design recommendations are shown to be adequate and are slightly conservative for designing both rare and covered floor heating panels with no infiltration and with an area-weighted average unheated surface temperature (AUST) equal to the room air temperature. The ASHRAE design recommendations are conservative because both the downward and edgewise heat loss and the panel thermal resistance are overestimated.
- Research Organization:
- Mechanical Engineering Dept., Texas AandM Univ., College Station and Centrifuge, Climatic and Radiant Heat Div., Sandia National Labs., Albuquerque, NM
- OSTI ID:
- 7242170
- Report Number(s):
- CONF-860106-
- Conference Information:
- Journal Name: ASHRAE Trans.; (United States) Journal Volume: 92:1B
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
ANALYTICAL SOLUTION
BUILDING MATERIALS
BUILDINGS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CONCRETES
COVERINGS
DESIGN
EFFICIENCY
ENERGY LOSSES
ENERGY TRANSFER
FLOORS
FLUID FLOW
FLUIDS
HEAT LOSSES
HEAT PIPES
HEAT TRANSFER
HEAT TRANSFER FLUIDS
LIQUID FLOW
LOSSES
MATERIALS
MATHEMATICAL MODELS
PHYSICAL PROPERTIES
RADIANT HEAT TRANSFER
RECOMMENDATIONS
REGULATIONS
SIMULATION
THERMAL CONDUCTIVITY
THERMAL EFFICIENCY
THERMAL INSULATION
THERMODYNAMIC PROPERTIES
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
ANALYTICAL SOLUTION
BUILDING MATERIALS
BUILDINGS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CONCRETES
COVERINGS
DESIGN
EFFICIENCY
ENERGY LOSSES
ENERGY TRANSFER
FLOORS
FLUID FLOW
FLUIDS
HEAT LOSSES
HEAT PIPES
HEAT TRANSFER
HEAT TRANSFER FLUIDS
LIQUID FLOW
LOSSES
MATERIALS
MATHEMATICAL MODELS
PHYSICAL PROPERTIES
RADIANT HEAT TRANSFER
RECOMMENDATIONS
REGULATIONS
SIMULATION
THERMAL CONDUCTIVITY
THERMAL EFFICIENCY
THERMAL INSULATION
THERMODYNAMIC PROPERTIES