Multi-Level Process Integration of Heat Pumps in Meat Processing

Elsa Klinac (), James Kenneth Carson, Duy Hoang, Qun Chen, Donald John Cleland and Timothy Gordon Walmsley
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Elsa Klinac: Ahuora—Centre for Smart Energy Systems, School of Engineering, University of Waikato, Hamilton 3240, New Zealand
James Kenneth Carson: Ahuora—Centre for Smart Energy Systems, School of Engineering, University of Waikato, Hamilton 3240, New Zealand
Duy Hoang: Ahuora—Centre for Smart Energy Systems, School of Engineering, University of Waikato, Hamilton 3240, New Zealand
Qun Chen: School of Food and Advanced Technology, Massey University, Palmerston North 4474, New Zealand
Donald John Cleland: School of Food and Advanced Technology, Massey University, Palmerston North 4474, New Zealand
Timothy Gordon Walmsley: Ahuora—Centre for Smart Energy Systems, School of Engineering, University of Waikato, Hamilton 3240, New Zealand

Energies, 2023, vol. 16, issue 8, 1-16

Abstract: Many countries across the globe are facing the challenge of replacing coal and natural gas-derived process heat with low-emission alternatives. In countries such as New Zealand, which have access to renewably generated electricity, industrial heat pumps offer great potential to reduce sitewide industrial carbon emissions. In this paper, a new Pinch-based Total Site Heat Integration (TSHI) method is proposed and used to explore and identify multi-level heat pump integration options at a meat processing site in New Zealand. This novel method improves upon standard methods that are currently used in industry and successfully identifies heat pump opportunities that might otherwise be missed by said standard methods. The results of the novel method application suggest that a Mechanical Vapour Recompression (MVR) system in the Rendering plant and a centralized air-source heat pump around the hot water ring main could reduce site emissions by over 50%. Future research will develop these preliminary results into a dynamic emissions reduction plan for the site, the novel methods for which will be transferrable to similar industrial sites.

Keywords: heat pump; total site analysis; energy saving; industrial heat integration; decarbonization; meat processing (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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