Design of heat exhanger network using pinch method

Chemical or oil refineiy processes utilize huge amounts o f energy in their routine operations. Therefore, it is vital for such industries to find ways o f maximizing the use of energy and make the system more efficient through reduction in energy, water and raw material consumption. Waste energy ca...

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Main Author:	Wan Mansor, Wan Nurdiyana
Format:	Thesis
Language:	English English English
Published:	2006
Subjects:	TJ255-265 Heat engines
Online Access:	http://eprints.uthm.edu.my/2236/1/WAN%20NURDIYANA%20BINTI%20WAN%20MANSOR%20-%20declaration.pdf http://eprints.uthm.edu.my/2236/2/WAN%20NURDIYANA%20BINTI%20WAN%20MANSOR%20-%2024p.pdf http://eprints.uthm.edu.my/2236/3/WAN%20NURDIYANA%20BINTI%20WAN%20MANSOR%20-%20fulltext.pdf
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spelling	my-uthm-ep.22362021-10-12T04:41:27Z Design of heat exhanger network using pinch method 2006-11 Wan Mansor, Wan Nurdiyana TJ255-265 Heat engines Chemical or oil refineiy processes utilize huge amounts o f energy in their routine operations. Therefore, it is vital for such industries to find ways o f maximizing the use of energy and make the system more efficient through reduction in energy, water and raw material consumption. Waste energy can be transferred to another process and that will increase the profitability of the industries. When the use of a heat exchanger network (HEN) is considered for these tasks, the framework developed in this study can be implemented to make a cost-benefit analysis. This thesis represents a framework for generating the H E N over a specified range of variations in the f l ow rates and temperature o f the streams. So that the heat exchanger area, number o f heat exchange units and load on the heat exchangers can be estimated. The proposed method to analyze and design the H E N is called pinch method, which is one o f the most practical tools and used to improve the efficiency o f energy usage, fuel and water consumption in industrial processes. This method investigates the energy flows within a process and identifies the most economical ways of maximizing heat recovery. This method consists o f five major steps to follow, which will finally lead to H E N design. The steps are: (1) choose a minimum temperature approach temperature (DTmin), (2) construct a temperature interval diagram, (3) construct a cascade diagram and determine the minimum utility requirements and the pinch temperature, (4) calculate the minimum number o f heat exchangers above and below the pinch and (5) construct the heat exchanger network. The emphasis of this work has been on the designing of the H E N . However, to demonstrate the practical implications of pinch analysis, D T m i n and the heat exchanger costs, it is necessary to estimate the heat transfer area o f the H E N , which will help in arriving at the total cost including capital and running costs o f the designed H E N . The effect o f changing the D T m i n gave a good indication on the overall costs. 2006-11 Thesis http://eprints.uthm.edu.my/2236/ http://eprints.uthm.edu.my/2236/1/WAN%20NURDIYANA%20BINTI%20WAN%20MANSOR%20-%20declaration.pdf text en staffonly http://eprints.uthm.edu.my/2236/2/WAN%20NURDIYANA%20BINTI%20WAN%20MANSOR%20-%2024p.pdf text en public http://eprints.uthm.edu.my/2236/3/WAN%20NURDIYANA%20BINTI%20WAN%20MANSOR%20-%20fulltext.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Faculty of Mechanical and Manufacturing Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TJ255-265 Heat engines
spellingShingle	TJ255-265 Heat engines Wan Mansor, Wan Nurdiyana Design of heat exhanger network using pinch method
description	Chemical or oil refineiy processes utilize huge amounts o f energy in their routine operations. Therefore, it is vital for such industries to find ways o f maximizing the use of energy and make the system more efficient through reduction in energy, water and raw material consumption. Waste energy can be transferred to another process and that will increase the profitability of the industries. When the use of a heat exchanger network (HEN) is considered for these tasks, the framework developed in this study can be implemented to make a cost-benefit analysis. This thesis represents a framework for generating the H E N over a specified range of variations in the f l ow rates and temperature o f the streams. So that the heat exchanger area, number o f heat exchange units and load on the heat exchangers can be estimated. The proposed method to analyze and design the H E N is called pinch method, which is one o f the most practical tools and used to improve the efficiency o f energy usage, fuel and water consumption in industrial processes. This method investigates the energy flows within a process and identifies the most economical ways of maximizing heat recovery. This method consists o f five major steps to follow, which will finally lead to H E N design. The steps are: (1) choose a minimum temperature approach temperature (DTmin), (2) construct a temperature interval diagram, (3) construct a cascade diagram and determine the minimum utility requirements and the pinch temperature, (4) calculate the minimum number o f heat exchangers above and below the pinch and (5) construct the heat exchanger network. The emphasis of this work has been on the designing of the H E N . However, to demonstrate the practical implications of pinch analysis, D T m i n and the heat exchanger costs, it is necessary to estimate the heat transfer area o f the H E N , which will help in arriving at the total cost including capital and running costs o f the designed H E N . The effect o f changing the D T m i n gave a good indication on the overall costs.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Wan Mansor, Wan Nurdiyana
author_facet	Wan Mansor, Wan Nurdiyana
author_sort	Wan Mansor, Wan Nurdiyana
title	Design of heat exhanger network using pinch method
title_short	Design of heat exhanger network using pinch method
title_full	Design of heat exhanger network using pinch method
title_fullStr	Design of heat exhanger network using pinch method
title_full_unstemmed	Design of heat exhanger network using pinch method
title_sort	design of heat exhanger network using pinch method
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Mechanical and Manufacturing Engineering
publishDate	2006
url	http://eprints.uthm.edu.my/2236/1/WAN%20NURDIYANA%20BINTI%20WAN%20MANSOR%20-%20declaration.pdf http://eprints.uthm.edu.my/2236/2/WAN%20NURDIYANA%20BINTI%20WAN%20MANSOR%20-%2024p.pdf http://eprints.uthm.edu.my/2236/3/WAN%20NURDIYANA%20BINTI%20WAN%20MANSOR%20-%20fulltext.pdf
_version_	1747830928223240192

Design of heat exhanger network using pinch method

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