Experimental study of flow boiling heat transfer, frictional pressure drop, and exergy destruction of R513A in microfin tubes
This research examines the heat transfer coefficient (HTC), frictional pressure drop (FPD), and exergy destruction characteristics of R513A during flow boiling in a microfin tube under varying conditions to assess the thermodynamic performance and efficiency. Experiments were conducted at heat fluxe...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media Deutschland GmbH
2025
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| Online Access: | https://umpir.ump.edu.my/id/eprint/45432/ |
| _version_ | 1848827416856756224 |
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| author | Vidhyarthi, Neeraj Kumar Deb, Sandipan Gajghate, Sameer Sheshrao Muhamad, Mat Noor Pal, Sagnik Das, Ajoy Kumar |
| author_facet | Vidhyarthi, Neeraj Kumar Deb, Sandipan Gajghate, Sameer Sheshrao Muhamad, Mat Noor Pal, Sagnik Das, Ajoy Kumar |
| author_sort | Vidhyarthi, Neeraj Kumar |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | This research examines the heat transfer coefficient (HTC), frictional pressure drop (FPD), and exergy destruction characteristics of R513A during flow boiling in a microfin tube under varying conditions to assess the thermodynamic performance and efficiency. Experiments were conducted at heat fluxes (HF) of 6, 18, and 30 kW·m−2, mass fluxes (MF) of 75, 175, and 275 kg·m−2·s−1, and saturation temperatures (12 °C and 22 °C). The results demonstrate that HTC rises significantly with HF and MF, with approximately a 30% increase observed at the highest fluxes, attributed to intensified nucleate and convective boiling processes. Additionally, FPD is shown to increase by about 50% as MF rises, reflecting greater frictional resistance from liquid-vapor interactions at higher flow rates. Exergy destruction (ED) analysis indicates a 20% reduction in ED at elevated MF values, suggesting that increased flow rates enhance thermodynamic efficiency by reducing irreversibilities. The experimental data align well with established HTC and FPD correlations, with 94% and 92% of predicted values, respectively, falling within 10% of the experimental measurements. Exergy efficiency reaches its peak at intermediate vapor qualities, approximately 15% higher than at lower or higher qualities, highlighting an optimal balance between thermal and pressure drop losses. These findings underscore the potential of R513A in microfin tubes for energy-efficient applications in refrigeration and heat pumps, where optimized HF and MF can enhance HTC and minimize exergy losses, contributing to overall system performance improvements. |
| first_indexed | 2025-11-15T04:00:22Z |
| format | Article |
| id | ump-45432 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T04:00:22Z |
| publishDate | 2025 |
| publisher | Springer Science and Business Media Deutschland GmbH |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-454322025-08-20T03:21:28Z https://umpir.ump.edu.my/id/eprint/45432/ Experimental study of flow boiling heat transfer, frictional pressure drop, and exergy destruction of R513A in microfin tubes Vidhyarthi, Neeraj Kumar Deb, Sandipan Gajghate, Sameer Sheshrao Muhamad, Mat Noor Pal, Sagnik Das, Ajoy Kumar TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TP Chemical technology This research examines the heat transfer coefficient (HTC), frictional pressure drop (FPD), and exergy destruction characteristics of R513A during flow boiling in a microfin tube under varying conditions to assess the thermodynamic performance and efficiency. Experiments were conducted at heat fluxes (HF) of 6, 18, and 30 kW·m−2, mass fluxes (MF) of 75, 175, and 275 kg·m−2·s−1, and saturation temperatures (12 °C and 22 °C). The results demonstrate that HTC rises significantly with HF and MF, with approximately a 30% increase observed at the highest fluxes, attributed to intensified nucleate and convective boiling processes. Additionally, FPD is shown to increase by about 50% as MF rises, reflecting greater frictional resistance from liquid-vapor interactions at higher flow rates. Exergy destruction (ED) analysis indicates a 20% reduction in ED at elevated MF values, suggesting that increased flow rates enhance thermodynamic efficiency by reducing irreversibilities. The experimental data align well with established HTC and FPD correlations, with 94% and 92% of predicted values, respectively, falling within 10% of the experimental measurements. Exergy efficiency reaches its peak at intermediate vapor qualities, approximately 15% higher than at lower or higher qualities, highlighting an optimal balance between thermal and pressure drop losses. These findings underscore the potential of R513A in microfin tubes for energy-efficient applications in refrigeration and heat pumps, where optimized HF and MF can enhance HTC and minimize exergy losses, contributing to overall system performance improvements. Springer Science and Business Media Deutschland GmbH 2025 Article PeerReviewed pdf en https://umpir.ump.edu.my/id/eprint/45432/1/Experimental%20study%20of%20flow%20boiling%20heat%20transfer.pdf Vidhyarthi, Neeraj Kumar and Deb, Sandipan and Gajghate, Sameer Sheshrao and Muhamad, Mat Noor and Pal, Sagnik and Das, Ajoy Kumar (2025) Experimental study of flow boiling heat transfer, frictional pressure drop, and exergy destruction of R513A in microfin tubes. Heat and Mass Transfer, 61 (5). pp. 1-16. ISSN 0947-7411. (Published) https://doi.org/10.1007/s00231-025-03560-w https://doi.org/10.1007/s00231-025-03560-w https://doi.org/10.1007/s00231-025-03560-w |
| spellingShingle | TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TP Chemical technology Vidhyarthi, Neeraj Kumar Deb, Sandipan Gajghate, Sameer Sheshrao Muhamad, Mat Noor Pal, Sagnik Das, Ajoy Kumar Experimental study of flow boiling heat transfer, frictional pressure drop, and exergy destruction of R513A in microfin tubes |
| title | Experimental study of flow boiling heat transfer, frictional pressure drop, and exergy destruction of R513A in microfin tubes |
| title_full | Experimental study of flow boiling heat transfer, frictional pressure drop, and exergy destruction of R513A in microfin tubes |
| title_fullStr | Experimental study of flow boiling heat transfer, frictional pressure drop, and exergy destruction of R513A in microfin tubes |
| title_full_unstemmed | Experimental study of flow boiling heat transfer, frictional pressure drop, and exergy destruction of R513A in microfin tubes |
| title_short | Experimental study of flow boiling heat transfer, frictional pressure drop, and exergy destruction of R513A in microfin tubes |
| title_sort | experimental study of flow boiling heat transfer, frictional pressure drop, and exergy destruction of r513a in microfin tubes |
| topic | TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TP Chemical technology |
| url | https://umpir.ump.edu.my/id/eprint/45432/ https://umpir.ump.edu.my/id/eprint/45432/ https://umpir.ump.edu.my/id/eprint/45432/ |