Optimisation of evaporator performance with adaptive superheat algorithm using fuzzy logic control for container refrigeration
This thesis presents the application of fuzzy logic control, using an electronic expansion valve, to control refrigerant flow in a commercial container refrigeration system. Test results comparing conventional proportional-integral and derivative (PID) control versus fuzzy control have shown that fu...
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sg-ntu-dr.10356-199912023-03-11T17:06:50Z Optimisation of evaporator performance with adaptive superheat algorithm using fuzzy logic control for container refrigeration Chia, Peng Kiang. Wong, Yew Wah School of Mechanical and Production Engineering DRNTU::Engineering::Mechanical engineering::Control engineering This thesis presents the application of fuzzy logic control, using an electronic expansion valve, to control refrigerant flow in a commercial container refrigeration system. Test results comparing conventional proportional-integral and derivative (PID) control versus fuzzy control have shown that fuzzy control performs better in terms of smaller overshoot of the superheat and faster settling time of the superheat response during the evaporator load pulldown mode. A better coefficient of performance (COP) was obtained with the use of the electronic expansion valve (EEV) together with a microprocessor to control a constant superheat, compared to the conventioanl thermostatic expansion valve (TEV), which is limited in terms of delivering a stable and accurate superheat control, as well as in responses to changes in operating conditions Master of Engineering (MPE) 2009-12-14T07:54:54Z 2009-12-14T07:54:54Z 1996 1996 Thesis http://hdl.handle.net/10356/19991 en NANYANG TECHNOLOGICAL UNIVERSITY 167 p. application/pdf |
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DRNTU::Engineering::Mechanical engineering::Control engineering Chia, Peng Kiang. Optimisation of evaporator performance with adaptive superheat algorithm using fuzzy logic control for container refrigeration |
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This thesis presents the application of fuzzy logic control, using an electronic expansion valve, to control refrigerant flow in a commercial container refrigeration system. Test results comparing conventional proportional-integral and derivative (PID) control versus fuzzy control have shown that fuzzy control performs better in terms of smaller overshoot of the superheat and faster settling time of the superheat response during the evaporator load pulldown mode. A better coefficient of performance (COP) was obtained with the use of the electronic expansion valve (EEV) together with a microprocessor to control a constant superheat, compared to the conventioanl thermostatic expansion valve (TEV), which is limited in terms of delivering a stable and accurate superheat control, as well as in responses to changes in operating conditions |
author2 |
Wong, Yew Wah |
author_facet |
Wong, Yew Wah Chia, Peng Kiang. |
format |
Theses and Dissertations |
author |
Chia, Peng Kiang. |
author_sort |
Chia, Peng Kiang. |
title |
Optimisation of evaporator performance with adaptive superheat algorithm using fuzzy logic control for container refrigeration |
title_short |
Optimisation of evaporator performance with adaptive superheat algorithm using fuzzy logic control for container refrigeration |
title_full |
Optimisation of evaporator performance with adaptive superheat algorithm using fuzzy logic control for container refrigeration |
title_fullStr |
Optimisation of evaporator performance with adaptive superheat algorithm using fuzzy logic control for container refrigeration |
title_full_unstemmed |
Optimisation of evaporator performance with adaptive superheat algorithm using fuzzy logic control for container refrigeration |
title_sort |
optimisation of evaporator performance with adaptive superheat algorithm using fuzzy logic control for container refrigeration |
publishDate |
2009 |
url |
http://hdl.handle.net/10356/19991 |
_version_ |
1761781321554722816 |