ENHANCEMENT OF HEAT TRANSFER IN A PIPE FLOW USING A SWIRLING PERFORATED TWISTED TAPE INSERT
With the advancement of science and technology heat transfer enhancement has become an important term in the field of engineering research since the effectiveness of heat exchangers are increasing through suitable heat transfer enhancement techniques. The purpose of research paper is to increase...
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| Médium: | Diplomová práce |
| Jazyk: | angličtina |
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DEPARTMENT OF MECHANICAL ENGINEERING
2021
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| On-line přístup: | http://dspace.mist.ac.bd:8080/xmlui/handle/123456789/659 |
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| _version_ | 1868227050553212928 |
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| author | Noon Oishe, Sadia Rahman, Md. Mostafizur Ahmad, Shahrokh Bin Ehtesham, Md. Sakib |
| author_browse | Ahmad, Shahrokh Bin Ehtesham, Md. Sakib Noon Oishe, Sadia Rahman, Md. Mostafizur |
| author_facet | Noon Oishe, Sadia Rahman, Md. Mostafizur Ahmad, Shahrokh Bin Ehtesham, Md. Sakib |
| author_sort | Noon Oishe, Sadia |
| collection | DSpace |
| description | With the advancement of science and technology heat transfer enhancement has become an
important term in the field of engineering research since the effectiveness of heat exchangers are
increasing through suitable heat transfer enhancement techniques. The purpose of research paper is to
increase the heat transfer coefficient by operating the heat exchangers at smaller revolution per
minute. This signifies an achievement of reduction of pressure drop corresponding to less operating
cost. However different researches were done by using various enhancement techniques. This study
has used two types of rotating perforated twisted tape insert to observe the various heat transfer
coefficient, heat transfer rate and heat transfer enhancement efficiency. One tape was fully twisted
and another tape was partially twisted. The shape of the twisted tape creates turbulence flow. The
turbulence flow (swirl flow) generated by twisted tape promotes greater mixing and high heat transfer
coefficients. An arrangement scheme has been developed for the experimental investigation. For
remarking the rate of change of heat transfer, temperature has been measured numerically through the
temperature sensors with various flow rates and RPM. The volume flow rate was varied from
10.3448276 LPM to 21.045574 LPM and the rotation of the perforated twisted tape was varied from
50 RPM to 400 RPM. Experiment demonstrates the effectiveness of the results of the proposed
approaches. It is shown that the suggested method of heat transfer enhancements is much more
effective than existing methods, since it results in an increase in heat transfer area and also an increase
in the heat transfer coefficient and reduction of cost in the industrial sectors. |
| format | Thesis |
| id | oai:localhost:123456789-659 |
| institution | My University |
| language | English |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | DEPARTMENT OF MECHANICAL ENGINEERING |
| publisherStr | DEPARTMENT OF MECHANICAL ENGINEERING |
| record_format | dspace |
| spelling | oai:localhost:123456789-6592021-10-04T07:00:32Z ENHANCEMENT OF HEAT TRANSFER IN A PIPE FLOW USING A SWIRLING PERFORATED TWISTED TAPE INSERT Noon Oishe, Sadia Rahman, Md. Mostafizur Ahmad, Shahrokh Bin Ehtesham, Md. Sakib With the advancement of science and technology heat transfer enhancement has become an important term in the field of engineering research since the effectiveness of heat exchangers are increasing through suitable heat transfer enhancement techniques. The purpose of research paper is to increase the heat transfer coefficient by operating the heat exchangers at smaller revolution per minute. This signifies an achievement of reduction of pressure drop corresponding to less operating cost. However different researches were done by using various enhancement techniques. This study has used two types of rotating perforated twisted tape insert to observe the various heat transfer coefficient, heat transfer rate and heat transfer enhancement efficiency. One tape was fully twisted and another tape was partially twisted. The shape of the twisted tape creates turbulence flow. The turbulence flow (swirl flow) generated by twisted tape promotes greater mixing and high heat transfer coefficients. An arrangement scheme has been developed for the experimental investigation. For remarking the rate of change of heat transfer, temperature has been measured numerically through the temperature sensors with various flow rates and RPM. The volume flow rate was varied from 10.3448276 LPM to 21.045574 LPM and the rotation of the perforated twisted tape was varied from 50 RPM to 400 RPM. Experiment demonstrates the effectiveness of the results of the proposed approaches. It is shown that the suggested method of heat transfer enhancements is much more effective than existing methods, since it results in an increase in heat transfer area and also an increase in the heat transfer coefficient and reduction of cost in the industrial sectors. 2021-10-04T07:00:31Z 2021-10-04T07:00:31Z 2017-12 Thesis http://dspace.mist.ac.bd:8080/xmlui/handle/123456789/659 en application/pdf DEPARTMENT OF MECHANICAL ENGINEERING |
| spellingShingle | Noon Oishe, Sadia Rahman, Md. Mostafizur Ahmad, Shahrokh Bin Ehtesham, Md. Sakib ENHANCEMENT OF HEAT TRANSFER IN A PIPE FLOW USING A SWIRLING PERFORATED TWISTED TAPE INSERT |
| title | ENHANCEMENT OF HEAT TRANSFER IN A PIPE FLOW USING A SWIRLING PERFORATED TWISTED TAPE INSERT |
| title_full | ENHANCEMENT OF HEAT TRANSFER IN A PIPE FLOW USING A SWIRLING PERFORATED TWISTED TAPE INSERT |
| title_fullStr | ENHANCEMENT OF HEAT TRANSFER IN A PIPE FLOW USING A SWIRLING PERFORATED TWISTED TAPE INSERT |
| title_full_unstemmed | ENHANCEMENT OF HEAT TRANSFER IN A PIPE FLOW USING A SWIRLING PERFORATED TWISTED TAPE INSERT |
| title_short | ENHANCEMENT OF HEAT TRANSFER IN A PIPE FLOW USING A SWIRLING PERFORATED TWISTED TAPE INSERT |
| title_sort | enhancement of heat transfer in a pipe flow using a swirling perforated twisted tape insert |
| url | http://dspace.mist.ac.bd:8080/xmlui/handle/123456789/659 |
| work_keys_str_mv | AT noonoishesadia enhancementofheattransferinapipeflowusingaswirlingperforatedtwistedtapeinsert AT rahmanmdmostafizur enhancementofheattransferinapipeflowusingaswirlingperforatedtwistedtapeinsert AT ahmadshahrokh enhancementofheattransferinapipeflowusingaswirlingperforatedtwistedtapeinsert AT binehteshammdsakib enhancementofheattransferinapipeflowusingaswirlingperforatedtwistedtapeinsert |