Waste Heat Recovery Systems of Shampoo Drain Water from Barbershops

Fang Tian Sun; Cui Jie Li; Rui Xiang Wang; De Ying Li

doi:10.4028/www.scientific.net/AMM.577.564

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 577Waste Heat Recovery Systems of Shampoo Drain Water...

Waste Heat Recovery Systems of Shampoo Drain Water from Barbershops

Abstract:

Two waste heat recovery systems of barbershops were presented to increase its heat utilization efficiency. One was the waste heat recovery system with water-to-water heat exchanger (WHR-HE). The other is the waste heat recovery system with both water-to-water heat exchanger and heat pump (WHR-HE-HP). The two waste heat recovery systems were analyzed by both economics and thermodynamics principles. Compared to conventional heat utilization systems of barbershops, the WHR-HE decreases annual energy consumption by 54.2%, and the WHR-HE-HP decreases annual energy consumption by 87.5%. The gain investment recovery periods of WHR-HE and WHR-HE-HP are below half one year. Compared to the WHR-HE, the WHR-HE-HP is with larger energy-saving potential, lower running cost, larger first cost and larger gain investment recovery period. The critical value of energy-saving financial subsidy is 0.778 ¥/W for the WHR-HE-HP. The WHR-HE-HP is very suited to the large and medium-sized barbershops, especially in the cold climate zone.

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Periodical:

Applied Mechanics and Materials (Volume 577)

Pages:

564-567

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.577.564

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Online since:

July 2014

Authors:

Fang Tian Sun*, Cui Jie Li, Rui Xiang Wang, De Ying Li

Keywords:

Energy Cascade Utilization, Heat Pump, Heat Utilization Efficiency, Waste Heat Recovery

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* - Corresponding Author

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