Performance evaluation of modified parabolic trough collector based solar water heater
Parabolic trough collectors are one of the most significant solar techniques that are extensively used in commercial and demonstration applications. In this paper, we experimentally investigated the new concept of intermittent rotation of the parabolic trough collector (PTC) absorption tube and made...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-06-01
|
| Series: | Results in Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025011855 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849314450664849408 |
|---|---|
| author | Rasaiah Naveenkumar Aman Sharma Rajaraman Venkateshkumar Vinayagam Mohanavel Kajuluri Veerababu Manickam Ravichandran AS Rajesh Sathish Kannan Manzoore Elahi M. Soudagar |
| author_facet | Rasaiah Naveenkumar Aman Sharma Rajaraman Venkateshkumar Vinayagam Mohanavel Kajuluri Veerababu Manickam Ravichandran AS Rajesh Sathish Kannan Manzoore Elahi M. Soudagar |
| author_sort | Rasaiah Naveenkumar |
| collection | DOAJ |
| description | Parabolic trough collectors are one of the most significant solar techniques that are extensively used in commercial and demonstration applications. In this paper, we experimentally investigated the new concept of intermittent rotation of the parabolic trough collector (PTC) absorption tube and made an evaluation between the conventional type of absorption tube and the rotary absorption tube. Intermittent rotation of the absorber tube tends to enhance heat generation by contacting the lowest side of the absorber tube with direct sunlight. The rotation is only about 180°, because in the initial stage, the absorber tube began to absorb from two parts of radiation, one of which is direct sunlight and the other is reflected sunlight, although the flow rate is very low and the heat transfer fluid (HTF) flows only at the bottom surface of the absorber tube. The heat generated on the top surface of the absorber tube is idle, so we implanted a new concept of intermittent rotation of the absorber tube. A comparative investigation of the results showed that the maximum outlet temperature attained in the modified PTC was 53.1 °C and indicated a maximum increase in the average outlet temperature of 18.21 % as compared to conventional PTC. Similarly, the maximum increase in the average heat transfer rate of modified PTC was 39.14 % as compared to the conventional PTC. The above results subsequently increased the maximum thermal efficiency of the modified PTC by 38.93 % as compared to conventional PTC. Also the results indicated that the rotating the tube could potentially optimize heat absorption, enhance convective heat transfer, or mitigate issues such as stagnation. |
| format | Article |
| id | doaj-art-0639595ab36a409787f69e69e394c4de |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-0639595ab36a409787f69e69e394c4de2025-08-20T03:52:28ZengElsevierResults in Engineering2590-12302025-06-012610511010.1016/j.rineng.2025.105110Performance evaluation of modified parabolic trough collector based solar water heaterRasaiah Naveenkumar0Aman Sharma1Rajaraman Venkateshkumar2Vinayagam Mohanavel3Kajuluri Veerababu4Manickam Ravichandran5AS Rajesh6Sathish Kannan7Manzoore Elahi M. Soudagar8Department of Mechanical Engineering, K.Ramakrishnan College of Engineering, Trichy 621112, Tamil Nadu, IndiaDepartment of Mechanical Engineering, GLA University, Mathura 281406, UP, IndiaDepartment of Mechanical Engineering, B V Raju Institute of Technology, Narsapur Medak, Telangana 502313, IndiaDivision of Research and Development, Lovely Professional University, Jalandhar - Delhi G.T. Road, Phagwara 144411, Punjab, India; Centre for Research Impact and Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura 140401, Punjab, India; Department of Mechanical Engineering, Amity University Dubai, 345019, United Arab EmiratesDepartment of Chemistry & Life Sciences, Aditya Degree College, Kakinada 533003, Andhra Pradesh, IndiaDepartment of Mechanical Engineering, K.Ramakrishnan College of Engineering, Trichy 621112, Tamil Nadu, India; Department of Mechanical Engineering and University Centre for Research and Development, Chandigarh University, Mohali 140413, Punjab, India; Corresponding author.Department of Mechanical Engineering, JSS Science & Technology University, Mysuru 570006, Karnataka, IndiaDepartment of VLSI Microelectronics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 602105, Tamil Nadu, IndiaChitkara Centre for Research and Development, Chitkara University, Himachal Pradesh 174103, India; Division of Research & Innovation, Uttaranchal University, Dehradun 248007, IndiaParabolic trough collectors are one of the most significant solar techniques that are extensively used in commercial and demonstration applications. In this paper, we experimentally investigated the new concept of intermittent rotation of the parabolic trough collector (PTC) absorption tube and made an evaluation between the conventional type of absorption tube and the rotary absorption tube. Intermittent rotation of the absorber tube tends to enhance heat generation by contacting the lowest side of the absorber tube with direct sunlight. The rotation is only about 180°, because in the initial stage, the absorber tube began to absorb from two parts of radiation, one of which is direct sunlight and the other is reflected sunlight, although the flow rate is very low and the heat transfer fluid (HTF) flows only at the bottom surface of the absorber tube. The heat generated on the top surface of the absorber tube is idle, so we implanted a new concept of intermittent rotation of the absorber tube. A comparative investigation of the results showed that the maximum outlet temperature attained in the modified PTC was 53.1 °C and indicated a maximum increase in the average outlet temperature of 18.21 % as compared to conventional PTC. Similarly, the maximum increase in the average heat transfer rate of modified PTC was 39.14 % as compared to the conventional PTC. The above results subsequently increased the maximum thermal efficiency of the modified PTC by 38.93 % as compared to conventional PTC. Also the results indicated that the rotating the tube could potentially optimize heat absorption, enhance convective heat transfer, or mitigate issues such as stagnation.http://www.sciencedirect.com/science/article/pii/S2590123025011855Solar EnergyParabolic trough collectorWater HeaterReceiver tubeThermal Performance |
| spellingShingle | Rasaiah Naveenkumar Aman Sharma Rajaraman Venkateshkumar Vinayagam Mohanavel Kajuluri Veerababu Manickam Ravichandran AS Rajesh Sathish Kannan Manzoore Elahi M. Soudagar Performance evaluation of modified parabolic trough collector based solar water heater Results in Engineering Solar Energy Parabolic trough collector Water Heater Receiver tube Thermal Performance |
| title | Performance evaluation of modified parabolic trough collector based solar water heater |
| title_full | Performance evaluation of modified parabolic trough collector based solar water heater |
| title_fullStr | Performance evaluation of modified parabolic trough collector based solar water heater |
| title_full_unstemmed | Performance evaluation of modified parabolic trough collector based solar water heater |
| title_short | Performance evaluation of modified parabolic trough collector based solar water heater |
| title_sort | performance evaluation of modified parabolic trough collector based solar water heater |
| topic | Solar Energy Parabolic trough collector Water Heater Receiver tube Thermal Performance |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025011855 |
| work_keys_str_mv | AT rasaiahnaveenkumar performanceevaluationofmodifiedparabolictroughcollectorbasedsolarwaterheater AT amansharma performanceevaluationofmodifiedparabolictroughcollectorbasedsolarwaterheater AT rajaramanvenkateshkumar performanceevaluationofmodifiedparabolictroughcollectorbasedsolarwaterheater AT vinayagammohanavel performanceevaluationofmodifiedparabolictroughcollectorbasedsolarwaterheater AT kajuluriveerababu performanceevaluationofmodifiedparabolictroughcollectorbasedsolarwaterheater AT manickamravichandran performanceevaluationofmodifiedparabolictroughcollectorbasedsolarwaterheater AT asrajesh performanceevaluationofmodifiedparabolictroughcollectorbasedsolarwaterheater AT sathishkannan performanceevaluationofmodifiedparabolictroughcollectorbasedsolarwaterheater AT manzooreelahimsoudagar performanceevaluationofmodifiedparabolictroughcollectorbasedsolarwaterheater |