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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| Format: | Thesis |
| Language: | English |
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2006
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| Online Access: | http://eprints.uthm.edu.my/7124/ http://eprints.uthm.edu.my/7124/1/24p%20WAN%20NURDIYANA%20WAN%20MANSOR.pdf |
| _version_ | 1848889008365502464 |
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| author | Wan Mansor, Wan Nurdiyana |
| author_facet | Wan Mansor, Wan Nurdiyana |
| author_sort | Wan Mansor, Wan Nurdiyana |
| building | UTHM Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T20:19:21Z |
| format | Thesis |
| id | uthm-7124 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:19:21Z |
| publishDate | 2006 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uthm-71242022-06-08T02:11:18Z http://eprints.uthm.edu.my/7124/ Design of heat exchanger network using pinch method 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 NonPeerReviewed text en http://eprints.uthm.edu.my/7124/1/24p%20WAN%20NURDIYANA%20WAN%20MANSOR.pdf Wan Mansor, Wan Nurdiyana (2006) Design of heat exchanger network using pinch method. Masters thesis, Kolej Universiti Teknologi Tun Hussein Onn. |
| spellingShingle | TJ Mechanical engineering and machinery TJ266-267.5 Turbines. Turbomachines (General) Wan Mansor, Wan Nurdiyana Design of heat exchanger network using pinch method |
| title | 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_short | Design of heat exchanger network using pinch method |
| title_sort | design of heat exchanger network using pinch method |
| topic | TJ Mechanical engineering and machinery TJ266-267.5 Turbines. Turbomachines (General) |
| url | http://eprints.uthm.edu.my/7124/ http://eprints.uthm.edu.my/7124/1/24p%20WAN%20NURDIYANA%20WAN%20MANSOR.pdf |