2010Purdue e-Pubs (Purdue University System)Open access

Savings Potential with Thermo-Active Ceilings & Free Cooling

Mark A. Murphy

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Abstract

The largest potential for decreasing green house gas emissions, and therewith mitigating the effects of global climate change, comes from improving energy efficiency.Through the integration of heating and cooling systems into building elements, such as the thermo-active ceiling, improvements in energy efficiency can be achieved.Utilizing thermal mass to buffer temperature variations and to level out peak loads reduces the instantaneous power demands and enables traditional cooling equipment to operate in temperature ranges with higher coefficients of performance.Additional savings in both energy and money can be obtained through the use of free cooling, especially in northern climates.As the coolant temperature in a thermo-active ceiling approaches room temperature, the cooling potential of outdoor ambient air increases.This temperature difference enables free cooling at the mere cost of blowing outdoor air through a heat exchanger.

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The largest potential for decreasing green house gas emissions, and therewith mitigating the effects of global climate change, comes from improving energy efficiency.Through the integration of heating and cooling systems into building elements, such as the thermo-active ceiling, improvements in energy efficiency can be achieved.Utilizing thermal mass to buffer temperature variations and to level out peak loads reduces the instantaneous power demands and enables traditional cooling equipment to operate in temperature ranges with higher coefficients of performance.Additional savings in both energy and money can be obtained through the use of free cooling, especially in northern climates.As the coolant temperature in a thermo-active ceiling approaches room temperature, the cooling potential of outdoor ambient air increases.This temperature difference enables free cooling at the mere cost of blowing outdoor air through a heat exchanger.

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Available abstract

The largest potential for decreasing green house gas emissions, and therewith mitigating the effects of global climate change, comes from improving energy efficiency.Through the integration of heating and cooling systems into building elements, such as the thermo-active ceiling, improvements in energy efficiency can be achieved.Utilizing thermal mass to buffer temperature variations and to level out peak loads reduces the instantaneous power demands and enables traditional cooling equipment to operate in temperature ranges with higher coefficients of performance.Additional savings in both energy and money can be obtained through the use of free cooling, especially in northern climates.As the coolant temperature in a thermo-active ceiling approaches room temperature, the cooling potential of outdoor ambient air increases.This temperature difference enables free cooling at the mere cost of blowing outdoor air through a heat exchanger.

Key concepts: Active cooling, Ceiling (cloud), Free cooling, Environmental science, Passive cooling, Heat exchanger, Coolant, Efficient energy use

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