eprintid: 698
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/06/98
datestamp: 2023-11-09 15:48:50
lastmod: 2023-11-09 15:48:50
status_changed: 2023-11-09 15:22:59
type: article
metadata_visibility: show
creators_name: Osman, A.
creators_name: Abdul Mutalib, M.I.
creators_name: Shuhaimi, M.
creators_name: Amminudin, K.A.
title: Paths combination for HENs retrofit
ispublished: pub
keywords: Cold streams; Common projects; Energy saving; Fuel prices; Heat exchanger network; Heat exchanger networks; Heat integration; Heat loads; Minimum approach; Operational costs; Path analysis; Payback time; Retrofit; Single path; Topological modification, Conservation; Energy conservation; Heat transfer; Investments; Mathematical programming; Regression analysis; Retrofitting; Thermal load, Heat exchangers
note: cited By 16
abstract: With the significant increase in fuel price, energy conservation projects should be reviewed and analyzed properly. Retrofit of heat exchanger networks (HENs) is among the common projects to reduce the plant operational cost. This paper introduced a new procedure using the path analysis approach for HEN retrofit. The developed procedure attempts at generating options for retrofit solution. These options are created by combining the available utility paths in HEN systematically. Instead of relying on a single path, the heat load could be shifted from HEN utilities using a set of paths simultaneously. To ensure feasible heat transfer between the hot and cold streams throughout, Exchanger Minimum Approach Temperature (EMAT) is maintained while shifting the heat load. The available exchangers' pressure drop is considered in calculating the heat transfer coefficients. HEN devices are subjected to some additional area without any topological modification. In addition, the investment of such area could be recovered in a short span of time. The calculation of this approach encountered some iteration which has been overcome by mathematical programming. Demonstration example showed some options to be reasonable retrofit solutions. Energy savings ranged between 150 K and 450 K per year with payback time of less than 2 years were possible. © 2009 Elsevier Ltd. All rights reserved.
date: 2009
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-67651111860&doi=10.1016%2fj.applthermaleng.2009.04.006&partnerID=40&md5=aaab8ee8310389ae749bee0812a08e9d
id_number: 10.1016/j.applthermaleng.2009.04.006
full_text_status: none
publication: Applied Thermal Engineering
volume: 29
number: 14-15
pagerange: 3103-3109
refereed: TRUE
issn: 13594311
citation:   Osman, A. and Abdul Mutalib, M.I. and Shuhaimi, M. and Amminudin, K.A.  (2009) Paths combination for HENs retrofit.  Applied Thermal Engineering, 29 (14-15).  pp. 3103-3109.  ISSN 13594311