Skip to main content

Research Repository

Advanced Search

Effect of the shape of connecting pipes on the performance output of a closed-loop hot water solar Thermo-syphon.

Freegah, B.; Asim, T.; Albarzenji, D.; Pradhan, S.; Mishra, R.

Authors

B. Freegah

D. Albarzenji

S. Pradhan

R. Mishra



Contributors

Uday Kumar
Editor

Ramin Karim
Editor

Aditya Parida
Editor

Phillip Tretten
Editor

Abstract

In order to conserve the environment from pollution, which is caused by the use of the fossil fuels, numerous research works have been carried out in renewable energy area to minimize the dependency on the fossil fuels. There are several energy sources naturally available, and solar energy is considered to be the best amongst them. Therefore it became a motivating area for the researchers in recent years. Thermo-syphon is one of many devices that use solar energy for power generation. Thermo-syphon converts solar energy into internal energy of the working fluid; mainly water. In this work, a computational fluid dynamics (CFD) code has been used to analyse the natural convection phenomenon in a thermo-syphon. The thermo-syphon model consist of steel pipes with an internal diameter of 25mm, along with a condenser having diameter equal to five times the pipe’s diameter, has been considered. The study has been carried out under no-loading conditions, for two thermo-syphon models comprising of straight and helical shaped pipes of 10, 20 and 30. A practical solar heat flux of 500W/m2 has been applied on the pipes. The numerical results depict that the working fluid within the condenser, in case of helical pipes, gains higher temperature as compared to the straight pipes. Furthermore, increase in the number of helical pipes has negligibly small effect on the temperature of the fluid within the condenser, and hence on the performance output of the thermo-syphon.

Citation

FREEGAH, B., ASIM, T., ALBARZENJI, D., PRADHAN, S. and MISHRA, R. 2014. Effect of the shape of connecting pipes on the performance output of a closed-loop hot water solar Thermo-syphon. In Kumar, U., Karim, R., Parida, A. and Tretten, P. (eds.) Proceedings of 3rd international workshop and congress on eMaintenance: eMaintenance, trends in technologies and methodologies, challenges, possibilities and applications, 17-18 June 2014, Luleå, Sweden. Luleå: Luleå University of Technology [online], pages 119-123. Available from: http://ltu.diva-portal.org/smash/record.jsf?pid=diva2%3A997766&dswid=-1615

Conference Name 3rd international workshop and congress on eMaintenance 2014 (eMaintenance 2014): eMaintenance, trends in technologies and methodologies, challenges, possibilities and applications
Conference Location Lulea, Sweden
Start Date Jun 17, 2014
End Date Jun 18, 2014
Acceptance Date Jun 18, 2014
Online Publication Date Jun 18, 2014
Publication Date Dec 31, 2014
Deposit Date Oct 8, 2021
Publicly Available Date Oct 8, 2021
Publisher Luleå University of Technology
Pages 119-123
Book Title Proceedings of 3rd international workshop and congress on eMaintenance: eMaintenance, trends in technologies and methodologies, challenges, possibilities and applications
ISBN 9789174399721
Keywords Computation fluid dynamics (CFD); Thermo-syphon; Helical pipe; Natural convection
Public URL https://rgu-repository.worktribe.com/output/872515
Publisher URL http://ltu.diva-portal.org/smash/record.jsf?pid=diva2%3A997766&dswid=-1615

Files





You might also like



Downloadable Citations