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Article

Introducing a Calculator for the Environmental and Financial Potential of Drain Water Heat Recovery in Commercial Kitchens

1
School of Natural Sciences, Bangor University, Bangor LL57 2UW, UK
2
Department of Civil, Structural and Environmental Engineering, Trinity College, The University of Dublin, College Green, D02 PN40 Dublin, Ireland
3
Bernal Institute, School of Engineering, University of Limerick, V94 T9PX Limerick, Ireland
*
Author to whom correspondence should be addressed.
Academic Editors: Martin Wagner and Sonja Bauer
Water 2021, 13(24), 3486; https://doi.org/10.3390/w13243486
Received: 30 September 2021 / Revised: 26 November 2021 / Accepted: 2 December 2021 / Published: 7 December 2021
Food service providers like restaurants, cafes, or canteens are of economic importance worldwide, but also contribute to environmental impacts through water and energy consumption. Drain water heat recovery from commercial kitchens, using a heat exchanger, has shown large potential to decarbonise hot water use across food services, but is rarely deployed. This work translates previous findings on the technical feasibility and heat recovery potential for commercial kitchens into a publicly available calculator. It facilitates decision-making towards recovery and reuse of the freely available heat in kitchen drains by estimating both financial costs and payback time, as well as environmental burdens associated with the installation and environmental savings from avoided energy consumption. Environmental burdens and savings include, but are not limited to, carbon emissions. Further, the tool highlights key aspects of the technical implementation to understand installation requirements. The tool is freely available and could contribute to the uptake of heat recovery in the food service sector, ideally in conjunction with policy support through financial incentives or subsidies. View Full-Text
Keywords: carbon footprint; catering; climate change mitigation; cooking; energy efficiency; greenhouse gas emissions; hospitality; life cycle assessment; meal preparation; wastewater reuse carbon footprint; catering; climate change mitigation; cooking; energy efficiency; greenhouse gas emissions; hospitality; life cycle assessment; meal preparation; wastewater reuse
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MDPI and ACS Style

Schestak, I.; Spriet, J.; Styles, D.; Williams, A.P. Introducing a Calculator for the Environmental and Financial Potential of Drain Water Heat Recovery in Commercial Kitchens. Water 2021, 13, 3486. https://doi.org/10.3390/w13243486

AMA Style

Schestak I, Spriet J, Styles D, Williams AP. Introducing a Calculator for the Environmental and Financial Potential of Drain Water Heat Recovery in Commercial Kitchens. Water. 2021; 13(24):3486. https://doi.org/10.3390/w13243486

Chicago/Turabian Style

Schestak, Isabel, Jan Spriet, David Styles, and A. P. Williams. 2021. "Introducing a Calculator for the Environmental and Financial Potential of Drain Water Heat Recovery in Commercial Kitchens" Water 13, no. 24: 3486. https://doi.org/10.3390/w13243486

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