Heat pumps in the process industry

Journal article (2017)

Authors

C.A. Infante Ferreira Engineering Thermodynamics - Mechanical, Maritime and Materials Engineering
Research Group
Engineering Thermodynamics (Mechanical, Maritime and Materials Engineering) (TU Delft)
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Published Date

2017

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Engineering Thermodynamics

Abstract

This paper discusses a case study in which the waste heat from a refinery is used to heat up district heating water for a local district heating (DH) network. The potential of using heat pumps in order to recover heat from low temperature process water streams for DH is to be analyzed. The heat pump will have to extract heat from a source at 37°C and add it to the DH water to increase its temperature as much as possible with reasonable values of the coefficient of performance (COP). The process water is presently cooled down using cooling towers. Extracting heat from the process water serves two purposes – waste heat recovery for DH and reduction in the load sent to the
cooling towers.

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