Process integration and electrification for efficient milk evaporation systems

Benjamin James Lincoln, Lana Kong, Alyssa Mae Pineda and Timothy Gordon Walmsley

Energy, 2022, vol. 258, issue C

Abstract: Industrial Process Integration and Electrification can provide an effective pathway to rapidly transition process heat in low temperature industries (i.e., heating <100 °C) away from coal or natural gas to renewable electricity. This paper aims to develop a highly efficient, completely electric milk evaporation system through the careful integration and selection of heat pump and Mechanical Vapour Recompression technologies. In response, this study reports an effective Process Integration and Electrification, PI&E, design method, which combines process simulation, heat and exergy Pinch Analysis, electrification technology (e.g., heat pump in this study) selection and integration, and flowsheet optimisation. As part of the method, design decisions are subject to process specific requirements, such as operability and product safety, to ensure solutions are technically and practically viable. Using the PI&E method for a milk evaporator system case study, this article reports the steps and end development of a new, fully electric milk evaporator system design, which requires 3593 kW of electricity (120 kWh/t of powder) and achieves a 32% operational cost and 82% emissions reduction. A sensitivity analysis was conducted of the final process design, which found it to apply to a wide variety of operating conditions.

Keywords: Process integration; Heat pump; Process electrification; Evaporation system; Mechanical vapour recompression; Milk powder production (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:258:y:2022:i:c:s0360544222017881

DOI: 10.1016/j.energy.2022.124885

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