Experimental evaluation of shape factor of axis-symmetric sunken structures

Document Type : Article

Author

Department of Mechanical Engineering, Jaypee University of Engineering & Technology, A.B. Road, Guna-473226, Madhya Pradesh, India

Abstract

This paper presents the dependence of a shape factor for the fully sunken axis symmetrical structures (viz. cubical, square prismatic, pyramidal, and cylindrical) corresponding to the depth and their orientation. Experimental evaluations of the shape factor on reduce scale models are carried out in laboratory using thermal simulation method for different sets of conditions. The method has been used to determine shape factor, which can be used to determine heat loss from ground to structure or structure to groud fully sunken with the different orientation. Maximum and minimum value of shape factor for set-I and II condition are recoded as 90.18 and 9.93 respectively. In set –III it will varies from 16.49 to 35.28. At D/L=2 shape factor of set-VI leads by 17.26% as compared to set VII. Where as set- IX leads by 33.47% as compaired to set VIII. It would help for designing building structure of fully buried nature for creating thermal comfort.

Keywords

Main Subjects


References:
1. Shelton, J.A.Y. "Underground storage of heat in solar heating systems", Solar Energy, 17, pp. 137- 143(1975).
2. Mishra, D.R. and Tiwari, A.K. "Sunken effect on building structures", I-Manager's Journal on Mechanical Engineering, 2, pp. 41-45 (2008).
3. Givoni, B. "Underground long term storage of solar energy-An overview", Solar Energy, 19, pp. 617-623 (1977).
4. Patil, K., Srivastava, V., and Baqersad, J. "A multiview optical technique to obtain mode shapes of structures", Measurement: Journal of the International Measurement Confederation, 122, pp. 358-367 (2018).
5. Deshmukh, M.K., Sodha, M.S., and Sawhney R.L. "Effect of depth of sinking on thermal performance of partially underground building", International Journal of Energy Research, 15, pp. 391-403 (1991).
6. Martinopoulos, G., Solar energy in buildings: Reference module in earth systems and environmental sciences, Elsevier Inc., pp. 1-14 (2016).https://doi.org/10.1016/B978-0-12-409548-9.09731-1.
7. Sodha, M.S., Sawhney, R.L., and Jayashankar, B.C. "Estimation of steady state ground losses from earth coupled structures by simulation", International Journal of Energy Research, 14, pp. 563-571 (1990).
8. Mishra, D.R., Sodha, M.S., and Tiwari, A.K. "Validation of the basis of experimental simulation of heat transfer between a building and surrounding earth", SESI Journal, 21, pp. 36-48 (2013).
9. Sodha, M.S. "Simulation of periodic heat transfer between ground and underground structures", International Journal of Energy Research, 25, pp. 689-693 (2001).
10. Sodha, M.S. "Simulation of dynamic heat transfer between ground and underground structures", International Journal of Energy Research, 25, pp. 1391- 1394 (2001).
11. Sole, A., Falcoz, Q., Cabeza, L.F., and Neveu, P. "Geometry optimization of a heat storage system for concentrated solar power plants (CSP)", Renewable Energy, 123, pp. e95 (2018).
12. Waichita, S., Jongpradist, P., and Jamsawang, P. "Characterization of deep cement mixing wall behavior using wall-to-excavation shape factor", Tunnelling and Underground Space Technology, 83, pp. 243-253 (2019).
13. Sukkarak, R., Jongpradist, P., and Pramthawee, P. "A modified valley shape factor for the estimation of rockfill dam settlement", Computers and Geotechnics, 108, pp. 244-256 (2019).
14. Sodha, M.S. and Mishra, D.R. "Shape factor for bermed wall", Heat Mass Transf. Und Stoffuebertragung, 47, pp. 1143-1146 (2011).
15. Tong, G., Christopher, D.M., and Zhang, G. "New insights on span selection for Chinese solar greenhouses using CFD analyses", Computers and Electronics in Agriculture, 149, pp. 3-15 (2017).
16. Somwanshi, A., Dixit, A., and Tiwari, A.K. "Shape factor for steady state heat transfer between swimming pool water and wsurrounding ground", Fundamentals of Renewable Energy and Applications, 4, pp. 2-5 (2013).
17. El-samadony, Y.A.F.A.F., El-maghlany, W.M. and Kabeel, A.E.E. "Influence of glass cover inclination angle on radiation heat transfer rate within stepped solar still", DES, 384, pp. 68-77 (2016).
18. Ruivo, C.R. and Vaz, D.C. "Prediction of the heat gain of external walls: An innovative approach for fullfeatured excitations based on the simplified method of Mackey-and-Wright", Applied Energy, 155, pp. 378- 392 (2015).
19. Amarasinghe Vithanage D., Devizis, A., Abramavi cius, V., Infahsaeng, Y., Abramavicius, D., MacKenzie, R.C.I., Keivanidis, P.E., Yartsev, A., Hertel, D., Nelson, J., Sundstrvm, V., and Gulbinas, V. "Visualizing charge separation in bulk heterojunction organic solar cells", Nature Communications, 4, pp. 23-34 (2013).
20. Boulton, C., Dedekorkut-Howes, A., and Byrne, J. "Factors shaping urban greenspace provision: A systematic review of the literature", Landscape and Urban Planning, 178, pp. 82-101 (2018).
21. Kiwan, S. and Khammash, A.L. "Investigations into the spiral distribution of the heliostat field in solar central tower system", Solar Energy, 164, pp. 25-37 (2018).
22. Chel, A., Tiwari, G.N., and Singh, H.N. "A modified model for estimation of daylight factor for skylight integrated with dome roof structure of mud-house in New Delhi (India)", Applied Energy, 87, pp. 3037-3050 (2010).
Volume 27, Issue 6 - Serial Number 6
Transactions on Mechanical Engineering (B)
November and December 2020
Pages 2831-2837
  • Receive Date: 03 January 2018
  • Revise Date: 13 April 2019
  • Accept Date: 25 June 2019