Universiti Teknologi Malaysia Institutional Repository

Customised retrofit of heat exchanger network combining area distribution and targeted investment

Lai, Yee Qing and Wan Alwi, Sharifah Rafidah and Abdul Manan, Zainuddin (2019) Customised retrofit of heat exchanger network combining area distribution and targeted investment. Energy, 179 . pp. 1054-1066. ISSN 0360-5442

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Official URL: http://dx.doi.org/10.1016/j.energy.2019.05.047

Abstract

Heat exchanger network (HEN) retrofit plays a major role in solving environmental issues and improving plants’ performance. Development of HEN retrofit graphical tools has recently focused on detailed representation of existing HEN to facilitate retrofit problem-solving. This work presents a new customised approach for HEN retrofit that uses a combination of individual stream temperature versus enthalpy plot (STEP) to map hot and cold streams, a heat exchanger area versus enthalpy (A vs H) plot to minimise the required overall heat exchanger area and graphical cost screening tool and strategies to steer and customise a retrofit design toward a desired investment payback period. Application of the new retrofit methodology on a sunflower oil production plant shows comparable energy savings and 20% shorter payback period as compared other established retrofit methodologies.

Item Type:Article
Uncontrolled Keywords:pinch analysis, area distribution, targeted investment
Subjects:Q Science > QD Chemistry
T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:89120
Deposited By: Yanti Mohd Shah
Deposited On:26 Jan 2021 16:44
Last Modified:26 Jan 2021 16:44

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