Numerical Analysis of the Performance of Dual-Tank with Movable Baffle for Heat Pump Water Heater

Li Zhong Yang; Jie Wu; Ya Cai Hu; Rong Hua Hong

doi:10.4028/www.scientific.net/AMM.331.88

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 331Numerical Analysis of the Performance of Dual-Tank...

Numerical Analysis of the Performance of Dual-Tank with Movable Baffle for Heat Pump Water Heater

Abstract:

The design of a new type of water tank for heat pump water heater is proposed. A movable baffle is set in the cylindrical water tank to prevent the mixture of hot and cold water in order to enable more hot water available for utilizing. The COP of the heat pump cycle increased due to the decrease of initial heating temperature, thus energy is saved. By numerical calculation, the performance of the new design is significantly better than previous water tanks. Comparing with the floating plate tank and common natural stratification tank, in the condition of water leaking 3% and Chrome-nickel steel wall, the available hot water efficiency of dual-tank with movable baffle is 40% and 50% higher and the energy consumption 12.3% and 13.9% lower. Moreover, little water leaking could increase the available hot water.

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Periodical:

Applied Mechanics and Materials (Volume 331)

Pages:

88-93

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.331.88

Citation:

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Online since:

July 2013

Authors:

Li Zhong Yang, Jie Wu, Ya Cai Hu, Rong Hua Hong

Keywords:

COP, Dual-Tank with Movable Baffle, Heat Pump Water Heater

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