Monday, 27 June 2016: 8:00 AM-9:30 AM
Research Summit
Chair:
Devin Abellon, P.E., Uponor
Technical Committee: 06.05 Radiant Heating and Cooling
As engineers and building owners look to embedded-tube radiant heating and cooling applications to maximize energy efficiency while providing optimum occupant comfort, additional research is underway to prove the system's effectiveness and provide better understanding. This seminar covers three different studies that help provide deeper insight into how radiant systems can be applied on both residential and commercial buildings.
1 The System-Wide Effects of Heating System Cost in High Bay Spaces
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Omar Hawit, P.E., Westlake Reed Leskosky |
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Trevor Jaffe, P.E., Westlake Reed Leskosky |
The session investigates the system-wide effects of heating system cost in high bay spaces. Heating system type, space temperature set points, and infiltration rates were considered while weighing the first cost of system components against the energy cost of the system operation. The three system types analyzed were forced-air unit heaters, radiant heating slab, and overhead infrared heating. The impact of combustion efficiency, heating effectiveness, parasitic losses, and occupant comfort were analyzed. Parametric energy simulations compare system selection, energy cost, and initial costs for various climate zones.
2 Phase Change Materials in Radiant Heating and Cooling Applications
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Eleftherios Bourdakis, Technical University of Denmark |
The majority of the buildings that will exist by the year 2050 in the developed countries have already been built. Therefore, in order to achieve significant reduction in the energy use in the buildings sector, vast changes have to be implemented in the existing buildings. Installing radiant panels with Phase Change Material (PCM) is a solution that could contribute in achieving this goal. This presentation summarizes the fundamentals of PCMs, the advantages and drawbacks of implementing them in radiant systems and an experimental setup in which radiant ceiling panels with embedded PCM are installed and tested in a climate chamber.
3 Application of Radiant Heating and Cooling in Plus-Energy Houses
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Ongun B. Kazanci, Technical University of Denmark |
Radiant heating and cooling systems present several advantages over other heating and cooling systems in terms of thermal indoor environment and energy. One of the benefits of radiant systems is that they enable integration of renewable energy resources (ground, night-time radiative cooling, etc.) into the heating and cooling systems in buildings. These advantages of radiant systems make them particularly attractive to be used in plus-energy houses. This presentation summarizes the design, simulation and year-round measured performance of two plus-energy houses equipped with radiant systems. Different performance aspects of the houses will be covered and improvement suggestions will be provided.