Design of heat exchanger 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 maximizin g the use o f energy and make the system more efficient through reduction in energy, water and raw material consumption. Wast e...

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Main Author:	Wan Mansor, Wan Nurdiyana
Format:	Thesis
Language:	English
Published:	2006
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.uthm.edu.my/7124/1/24p%20WAN%20NURDIYANA%20WAN%20MANSOR.pdf
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id	my-uthm-ep.7124
record_format	uketd_dc
spelling	my-uthm-ep.71242022-06-08T02:11:18Z Design of heat exchanger network using pinch method 2006-11 Wan Mansor, Wan Nurdiyana TJ Mechanical engineering and machinery TJ266-267.5 Turbines. Turbomachines (General) 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 maximizin g the use o f energy and make the system more efficient through reduction in energy, water and raw material consumption. Wast e energy can be transferred to another process and that wil l increase the profitability o f the industries. Whe n the use o f a heat exchanger network (HEN) is considered for these tasks, the framewor k developed in this study can be implemented to mak e a cost-benefit analysis. This thesis represents a framewor k for generating the HE N over a specified range o f variations in the flo w rates and temperature o f the streams. So that the heat exchanger area, numbe r o f heat exchange units and load on the heat exchangers can be estimated. T he proposed method to analyze and design the HE 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 o f maximizing heat recovery. This method consists o f five major steps to follow, which wil l finally lead to H E N design. Th e steps are: (1 ) choose a minimu m temperature approach temperature (DTmin) , (2 ) construct a temperature interval diagram, (3 ) construct a cascade diagram and determine the minimu m utility requirements and the pinch temperature, (4 ) calculate the minimu m number o f heat exchangers above and below the pinch and (5) construct the heat exchanger network. T h e emphasis o f this work has been on the designing o f the HEN . However, to demonstrate the practical implications o f pinch analysis, DTmi n and the heat exchanger costs, it is necessary to estimate the heat transfer area o f the HEN , which wil l help in arriving at the total cost including capital and running costs o f the designed HEN . Th e effect o f changing the DTmi n gave a good indication on the overall costs. 2006-11 Thesis http://eprints.uthm.edu.my/7124/ http://eprints.uthm.edu.my/7124/1/24p%20WAN%20NURDIYANA%20WAN%20MANSOR.pdf text en public mphil masters Kolej Universiti Teknologi Tun Hussein Onn Fakulti Kejuruteraan Mekanikal dan Pembuatan
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery TJ Mechanical engineering and machinery Wan Mansor, Wan Nurdiyana Design of heat exchanger 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 maximizin g the use o f energy and make the system more efficient through reduction in energy, water and raw material consumption. Wast e energy can be transferred to another process and that wil l increase the profitability o f the industries. Whe n the use o f a heat exchanger network (HEN) is considered for these tasks, the framewor k developed in this study can be implemented to mak e a cost-benefit analysis. This thesis represents a framewor k for generating the HE N over a specified range o f variations in the flo w rates and temperature o f the streams. So that the heat exchanger area, numbe r o f heat exchange units and load on the heat exchangers can be estimated. T he proposed method to analyze and design the HE 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 o f maximizing heat recovery. This method consists o f five major steps to follow, which wil l finally lead to H E N design. Th e steps are: (1 ) choose a minimu m temperature approach temperature (DTmin) , (2 ) construct a temperature interval diagram, (3 ) construct a cascade diagram and determine the minimu m utility requirements and the pinch temperature, (4 ) calculate the minimu m number o f heat exchangers above and below the pinch and (5) construct the heat exchanger network. T h e emphasis o f this work has been on the designing o f the HEN . However, to demonstrate the practical implications o f pinch analysis, DTmi n and the heat exchanger costs, it is necessary to estimate the heat transfer area o f the HEN , which wil l help in arriving at the total cost including capital and running costs o f the designed HEN . Th e effect o f changing the DTmi 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 exchanger network using pinch method
title_short	Design of heat exchanger network using pinch method
title_full	Design of heat exchanger network using pinch method
title_fullStr	Design of heat exchanger network using pinch method
title_full_unstemmed	Design of heat exchanger network using pinch method
title_sort	design of heat exchanger network using pinch method
granting_institution	Kolej Universiti Teknologi Tun Hussein Onn
granting_department	Fakulti Kejuruteraan Mekanikal dan Pembuatan
publishDate	2006
url	http://eprints.uthm.edu.my/7124/1/24p%20WAN%20NURDIYANA%20WAN%20MANSOR.pdf
_version_	1747831116605161472

Design of heat exchanger network using pinch method

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