Comparison of Different Concepts of Condensation Heat Exchangers With Vertically Oriented Pipes for Effective Heat and Water Regeneration
This paper presents a theoretical study focused on the possible enhancement of the heat transfer in a vertical tube during condensation of steam. Two different concepts of condenser operation are compared. The first concept considers a condenser pipe with steam inside and coolant flowing along the e...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIDIC Servizi S.r.l.
2019-10-01
|
| Series: | Chemical Engineering Transactions |
| Online Access: | https://www.cetjournal.it/index.php/cet/article/view/10515 |
| _version_ | 1818609804631867392 |
|---|---|
| author | Filip Toman Petr Kracik Jiri Pospisil Michal Spilacek |
| author_facet | Filip Toman Petr Kracik Jiri Pospisil Michal Spilacek |
| author_sort | Filip Toman |
| collection | DOAJ |
| description | This paper presents a theoretical study focused on the possible enhancement of the heat transfer in a vertical tube during condensation of steam. Two different concepts of condenser operation are compared. The first concept considers a condenser pipe with steam inside and coolant flowing along the external pipe wall. The second concept considers steam inside the pipe and the coolant flowing along the inner wall together with the steam. During the condensation process, a liquid film is formed on the pipe wall. This fluid film represents a thermal resistance that increases with the increasing thickness of the film. The operating parameters of both considered concepts are compared with the utilising of a developed analytical procedure. The analytical model is focused on the detail evaluation of the liquid film parameters on the heat flux, intensity of the condensation process and output temperature of coolant leaving the condenser. |
| first_indexed | 2024-12-16T15:04:22Z |
| format | Article |
| id | doaj.art-fe0feac193364701ba4f8a15e505d2de |
| institution | Directory Open Access Journal |
| issn | 2283-9216 |
| language | English |
| last_indexed | 2024-12-16T15:04:22Z |
| publishDate | 2019-10-01 |
| publisher | AIDIC Servizi S.r.l. |
| record_format | Article |
| series | Chemical Engineering Transactions |
| spelling | doaj.art-fe0feac193364701ba4f8a15e505d2de2022-12-21T22:27:12ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162019-10-017610.3303/CET1976064Comparison of Different Concepts of Condensation Heat Exchangers With Vertically Oriented Pipes for Effective Heat and Water RegenerationFilip TomanPetr KracikJiri PospisilMichal SpilacekThis paper presents a theoretical study focused on the possible enhancement of the heat transfer in a vertical tube during condensation of steam. Two different concepts of condenser operation are compared. The first concept considers a condenser pipe with steam inside and coolant flowing along the external pipe wall. The second concept considers steam inside the pipe and the coolant flowing along the inner wall together with the steam. During the condensation process, a liquid film is formed on the pipe wall. This fluid film represents a thermal resistance that increases with the increasing thickness of the film. The operating parameters of both considered concepts are compared with the utilising of a developed analytical procedure. The analytical model is focused on the detail evaluation of the liquid film parameters on the heat flux, intensity of the condensation process and output temperature of coolant leaving the condenser.https://www.cetjournal.it/index.php/cet/article/view/10515 |
| spellingShingle | Filip Toman Petr Kracik Jiri Pospisil Michal Spilacek Comparison of Different Concepts of Condensation Heat Exchangers With Vertically Oriented Pipes for Effective Heat and Water Regeneration Chemical Engineering Transactions |
| title | Comparison of Different Concepts of Condensation Heat Exchangers With Vertically Oriented Pipes for Effective Heat and Water Regeneration |
| title_full | Comparison of Different Concepts of Condensation Heat Exchangers With Vertically Oriented Pipes for Effective Heat and Water Regeneration |
| title_fullStr | Comparison of Different Concepts of Condensation Heat Exchangers With Vertically Oriented Pipes for Effective Heat and Water Regeneration |
| title_full_unstemmed | Comparison of Different Concepts of Condensation Heat Exchangers With Vertically Oriented Pipes for Effective Heat and Water Regeneration |
| title_short | Comparison of Different Concepts of Condensation Heat Exchangers With Vertically Oriented Pipes for Effective Heat and Water Regeneration |
| title_sort | comparison of different concepts of condensation heat exchangers with vertically oriented pipes for effective heat and water regeneration |
| url | https://www.cetjournal.it/index.php/cet/article/view/10515 |
| work_keys_str_mv | AT filiptoman comparisonofdifferentconceptsofcondensationheatexchangerswithverticallyorientedpipesforeffectiveheatandwaterregeneration AT petrkracik comparisonofdifferentconceptsofcondensationheatexchangerswithverticallyorientedpipesforeffectiveheatandwaterregeneration AT jiripospisil comparisonofdifferentconceptsofcondensationheatexchangerswithverticallyorientedpipesforeffectiveheatandwaterregeneration AT michalspilacek comparisonofdifferentconceptsofcondensationheatexchangerswithverticallyorientedpipesforeffectiveheatandwaterregeneration |