Energy performance assessment in a fluid milk processing plant
DOI:
https://doi.org/10.52292/j.laar.2026.1004Keywords:
Energy assessment, Heat Exchanger Network, Pinch AnalysisAbstract
The main energy conservation opportunities in a dairy plant are in refrigeration, and steam generation. This paper aims to identify potential energy and water savings to improve the thermal efficiency of a fluid milk processing plant. Methodologies for energy analysis and Pinch Analysis with the use of HENSAD and Aspen Energy Analyzer are applied. The main specific energy consumptions are defined as indicators of the progress of improved energy efficiency. The determination of energy performance indicators and energy targets of the heat exchanger network, as well as its design, allowed identifying opportunities for improvement to reduce fuel and water consumption through heat recovery in the milk pasteurisation process. Current hot and cold utilities duties are satisfied, for a minimum allowable temperature difference of 20 °C. Total annual savings of fuel oil and water allow assessing the feasibility of an investment project for improved heat recovery.
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