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Mingzhe Liu, University of Tokyo
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Ryozo Ooka, Ph.D., University of Tokyo
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Wonjun Choi, Ph.D., University of Tokyo
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Shintaro Ikeda, University of Tokyo
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In most HVAC systems, water is usually delivered by several centralized pumps, which may reduce the pumping system’s energy efficiency because of unnecessary pressure loss. A decentralized pumping system is an alternative system that only circulates the minimum water required by the respective terminal unit and can reduce the excess pressure loss. This paper verifies the performance of the decentralized pumping system by conducting an experiment comparing centralized and decentralized pump systems under various water flow conditions in terms of their energy consumption in water delivery and their energy saving potential.
