Modelling of Evaporator in Waste Heat Recovery System using Finite Volume Method and Fuzzy Technique
The evaporator is an important component in the Organic Rankine Cycle (ORC)-based Waste Heat Recovery (WHR) system since the effective heat transfer of this device reflects on the efficiency of the system. When the WHR system operates under supercritical conditions, the heat transfer mechanism in th...
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| Format: | Article |
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MDPI AG
2015-12-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/8/12/12413 |
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| author | Jahedul Islam Chowdhury Bao Kha Nguyen David Thornhill |
| author_facet | Jahedul Islam Chowdhury Bao Kha Nguyen David Thornhill |
| author_sort | Jahedul Islam Chowdhury |
| collection | DOAJ |
| description | The evaporator is an important component in the Organic Rankine Cycle (ORC)-based Waste Heat Recovery (WHR) system since the effective heat transfer of this device reflects on the efficiency of the system. When the WHR system operates under supercritical conditions, the heat transfer mechanism in the evaporator is unpredictable due to the change of thermo-physical properties of the fluid with temperature. Although the conventional finite volume model can successfully capture those changes in the evaporator of the WHR process, the computation time for this method is high. To reduce the computation time, this paper develops a new fuzzy based evaporator model and compares its performance with the finite volume method. The results show that the fuzzy technique can be applied to predict the output of the supercritical evaporator in the waste heat recovery system and can significantly reduce the required computation time. The proposed model, therefore, has the potential to be used in real time control applications. |
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| format | Article |
| id | doaj.art-0b7e2554a12f434bbe716f6fc3648c6e |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T08:34:07Z |
| publishDate | 2015-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-0b7e2554a12f434bbe716f6fc3648c6e2022-12-22T02:54:09ZengMDPI AGEnergies1996-10732015-12-01812140781409710.3390/en81212413en81212413Modelling of Evaporator in Waste Heat Recovery System using Finite Volume Method and Fuzzy TechniqueJahedul Islam Chowdhury0Bao Kha Nguyen1David Thornhill2School of Mechanical and Aerospace Engineering, Queen’s University Belfast, Belfast BT9 5AH, UKSchool of Mechanical and Aerospace Engineering, Queen’s University Belfast, Belfast BT9 5AH, UKSchool of Mechanical and Aerospace Engineering, Queen’s University Belfast, Belfast BT9 5AH, UKThe evaporator is an important component in the Organic Rankine Cycle (ORC)-based Waste Heat Recovery (WHR) system since the effective heat transfer of this device reflects on the efficiency of the system. When the WHR system operates under supercritical conditions, the heat transfer mechanism in the evaporator is unpredictable due to the change of thermo-physical properties of the fluid with temperature. Although the conventional finite volume model can successfully capture those changes in the evaporator of the WHR process, the computation time for this method is high. To reduce the computation time, this paper develops a new fuzzy based evaporator model and compares its performance with the finite volume method. The results show that the fuzzy technique can be applied to predict the output of the supercritical evaporator in the waste heat recovery system and can significantly reduce the required computation time. The proposed model, therefore, has the potential to be used in real time control applications.http://www.mdpi.com/1996-1073/8/12/12413evaporator modellingfinite volumefuzzyOrganic Rankine Cycle (ORC)supercritical conditionwaste heat recovery |
| spellingShingle | Jahedul Islam Chowdhury Bao Kha Nguyen David Thornhill Modelling of Evaporator in Waste Heat Recovery System using Finite Volume Method and Fuzzy Technique Energies evaporator modelling finite volume fuzzy Organic Rankine Cycle (ORC) supercritical condition waste heat recovery |
| title | Modelling of Evaporator in Waste Heat Recovery System using Finite Volume Method and Fuzzy Technique |
| title_full | Modelling of Evaporator in Waste Heat Recovery System using Finite Volume Method and Fuzzy Technique |
| title_fullStr | Modelling of Evaporator in Waste Heat Recovery System using Finite Volume Method and Fuzzy Technique |
| title_full_unstemmed | Modelling of Evaporator in Waste Heat Recovery System using Finite Volume Method and Fuzzy Technique |
| title_short | Modelling of Evaporator in Waste Heat Recovery System using Finite Volume Method and Fuzzy Technique |
| title_sort | modelling of evaporator in waste heat recovery system using finite volume method and fuzzy technique |
| topic | evaporator modelling finite volume fuzzy Organic Rankine Cycle (ORC) supercritical condition waste heat recovery |
| url | http://www.mdpi.com/1996-1073/8/12/12413 |
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