Heat transfer and pressure drop analysis of automotive HVAC condensers with two phase flows in minichannels
The air cooled automotive condensers under study are of brazed aluminium tube and center, consisting of one row array of horizontal parallel multi-port flat tubes with louver fins on air side. Each tube is with a number of smooth parallel minichannels for internal flow of refrigerant. The analysis u...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2021-12-01
|
| Series: | Engineering Management in Production and Services |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/emj-2021-0039 |
| _version_ | 1819001048183865344 |
|---|---|
| author | Skiepko Teodor |
| author_facet | Skiepko Teodor |
| author_sort | Skiepko Teodor |
| collection | DOAJ |
| description | The air cooled automotive condensers under study are of brazed aluminium tube and center, consisting of one row array of horizontal parallel multi-port flat tubes with louver fins on air side. Each tube is with a number of smooth parallel minichannels for internal flow of refrigerant. The analysis uses decomposition of the condenser along refrigerant flow path into specific different zones as follows: two single phase zones, namely: superheated and subcooled, and a few zones of two phase flow that can appear along some specific condensation paths to be: annular/intermittent/bubble or annular/annular-wavy/intermittent/bubble or annular/wavy/stratified. The approach presented is based on experimental correlations for heat transfer and pressure drop. The heat transfer prediction is performed using ε – NTUo methodology. The results of the analysis refer to overall heat transfer rate, heat transfer in particular zones, pressure gradients heat transfer coefficients, vapour quality, condensation paths. |
| first_indexed | 2024-12-20T22:43:01Z |
| format | Article |
| id | doaj.art-64a02bc2fb0042ee8646c0aa98643602 |
| institution | Directory Open Access Journal |
| issn | 2543-912X |
| language | English |
| last_indexed | 2024-12-20T22:43:01Z |
| publishDate | 2021-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Engineering Management in Production and Services |
| spelling | doaj.art-64a02bc2fb0042ee8646c0aa986436022022-12-21T19:24:26ZengSciendoEngineering Management in Production and Services2543-912X2021-12-0113417418810.2478/emj-2021-0039Heat transfer and pressure drop analysis of automotive HVAC condensers with two phase flows in minichannelsSkiepko Teodor0Bialystok University of Technology, PolandThe air cooled automotive condensers under study are of brazed aluminium tube and center, consisting of one row array of horizontal parallel multi-port flat tubes with louver fins on air side. Each tube is with a number of smooth parallel minichannels for internal flow of refrigerant. The analysis uses decomposition of the condenser along refrigerant flow path into specific different zones as follows: two single phase zones, namely: superheated and subcooled, and a few zones of two phase flow that can appear along some specific condensation paths to be: annular/intermittent/bubble or annular/annular-wavy/intermittent/bubble or annular/wavy/stratified. The approach presented is based on experimental correlations for heat transfer and pressure drop. The heat transfer prediction is performed using ε – NTUo methodology. The results of the analysis refer to overall heat transfer rate, heat transfer in particular zones, pressure gradients heat transfer coefficients, vapour quality, condensation paths.https://doi.org/10.2478/emj-2021-0039air cooled condenserheat transfer and pressure drop analysisminichannels |
| spellingShingle | Skiepko Teodor Heat transfer and pressure drop analysis of automotive HVAC condensers with two phase flows in minichannels Engineering Management in Production and Services air cooled condenser heat transfer and pressure drop analysis minichannels |
| title | Heat transfer and pressure drop analysis of automotive HVAC condensers with two phase flows in minichannels |
| title_full | Heat transfer and pressure drop analysis of automotive HVAC condensers with two phase flows in minichannels |
| title_fullStr | Heat transfer and pressure drop analysis of automotive HVAC condensers with two phase flows in minichannels |
| title_full_unstemmed | Heat transfer and pressure drop analysis of automotive HVAC condensers with two phase flows in minichannels |
| title_short | Heat transfer and pressure drop analysis of automotive HVAC condensers with two phase flows in minichannels |
| title_sort | heat transfer and pressure drop analysis of automotive hvac condensers with two phase flows in minichannels |
| topic | air cooled condenser heat transfer and pressure drop analysis minichannels |
| url | https://doi.org/10.2478/emj-2021-0039 |
| work_keys_str_mv | AT skiepkoteodor heattransferandpressuredropanalysisofautomotivehvaccondenserswithtwophaseflowsinminichannels |