Numerical simulation of a novel Trombe wall-assisted desiccant wheel

Document Type : Article

Authors

1 Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, P.O. Box 14515/775, Iran.

2 Faculty of Mechanical Engineering, University of Guilan, Rasht, P. Code 4199613776, Iran.

3 Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, P.O. Box 14515/775, Iran

4 Department of Petroleum and Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, P.O. Box 14515/775, Iran.

Abstract

In the present study, a novel trombe wall-assisted desiccant wheel system has been modeled, in which the trombe wall is divided into three equal parts and it provides the heat energy needed to regenerate the desiccant wheel. The components of the system, including the desiccant wheel, the trombe wall are separately modeled in MATLAB software and then assembled to investigate the surface area of the trombe wall and the output humidity of the desiccant wheel for attaining air conditioning comfort. It has been discussed that the integrated system presented here, can be utilized in all humid climate conditions around the globe. The results of the present study for some special cases have been compared with results available in open literature. The optimal surface area of the trombe wall has been extracted according to the parameters of the desiccant wheel. Results shows that the solar energy received by the trombe wall is 600-740 W/m2 (1May – 15August) in warm and humid climate of Gilan (Iran), the temperature of the wall surface is obtained 77-86 ºC, and the outlet temperature of regeneration air stream from trombe wall is obtained 60-70 ºC, the output humidity of the desiccant wheel reduces 10-12 gw/kga.

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Main Subjects


1. Ge, T., Dai, Y., and Wang, R. Review on solar powered rotary desiccant wheel cooling system", Renewable and Sustainable Energy Reviews, 39, pp. 476- 497 (2014). 2. Jani, D., Mishra, M., and Sahoo, P. Solid desiccant air conditioning-a state of the art review", Renewable and Sustainable Energy Reviews, 60, pp. 1451-1469 (2016). 3. Jani, D., Mishra, M., and Sahoo, P. A critical review on application of solar energy as renewable regeneration heat source in solid desiccant-vapor compression hybrid cooling system", Journal of Building Engineering, 18, pp. 107-124 (2018). 4. Hatami, Z., Saidi, M.H., Mohammadian, M., and Aghanaja_, C. Optimization of solar collector surface in solar desiccant wheel cycle", Energy and Buildings, 45, pp. 197-201 (2012). 5. Tsujiguchi, T., Osaka, Y., and Kodama, A. Feasibility study of simultaneous heating and dehumidi_cation using an adsorbent desiccant wheel with humidity swing", Applied Thermal Engineering, 117, pp. 437- 442 (2017). 6. Kabeel, A. and Abdelgaied, M. Solar energy assisted desiccant air conditioning system with PCM as a thermal storage medium", Renewable Energy, 122, pp. 632-642 (2018). 7. Das, R.S. and Jain, S. Experimental investigations on a solar assisted liquid desiccant cooling system with indirect contact dehumidi_er", Solar Energy, 153, pp. 289-300 (2017). 8. Nie, J., Li, Z., Hu, W., Fang, L., and Zhang, Q. Theoretical modelling and experimental study of air thermal conditioning process of a heat pump assisted solid desiccant cooling system", Energy and Buildings, 153, pp. 31-40 (2017). 9. Gadalla, M. and Sagha_far, M. Performance assessment and transient optimization of air precooling in multi-stage solid desiccant air conditioning systems", Energy Conversion and Management, 119, pp. 187-202 (2016). 10. Kumar, A. and Yadav, A. Experimental investigation of solar-powered desiccant cooling system by using composite desiccant CaCl2/jute"", Environment, Development and Sustainability, 19(4), pp. 1279-1292 (2017). 11. Ahmadzadehtalatapeh, M. Solar assisted desiccant evaporative cooling system for o_ce buildings in Iran: a yearly simulation model", Scientia Iranica, 25(1), pp. 280-298 (2018). 12. El-Agouz, S. and Kabeel, A. Performance of desiccant air conditioning system with geothermal energy under di_erent climatic conditions", Energy Conversion and Management, 88, pp. 464-475 (2014). 13. Wrobel, J., Walter, P.S., and Schmitz, G. Performance of a solar assisted air conditioning system at di_erent locations", Solar Energy, 92, pp. 69-83 (2013). 14. Sopian, K., Dezfouli, M., Mat, S., and Ruslan, M. Solar assisted desiccant air conditioning system for hot and humid areas", International Journal of Environment and Sustainability, 3(1), pp. 23-32 (2014). 15. Abbassi, Y., Baniasadi, E., and Ahmadikia, H. Comparative performance analysis of di_erent solar desiccant dehumidi_cation systems", Energy and Buildings, 150, pp. 37-51 (2017). 16. Salarian, H., Ghorbani, B., Amidpour, M., and Salehi, G. Performance study on dehumidi_er of packed bed liquid desiccant system", Scientia Iranica, 21(1), pp. 222-228 (2014). 17. Jani, D., Mishra, M., and Sahoo, P. Experimental investigation on solid desiccant-vapor compressionhybrid air-conditioning system in hot and humid 2882 M. Bahramkhoo et al./Scientia Iranica, Transactions B: Mechanical Engineering 26 (2019) 2872{2883 weather", Applied Thermal Engineering, 104, pp. 556- 564 (2016). 18. Jani, D., Mishra, M., and Sahoo, P. Performance prediction of rotary solid desiccant dehumidi_er in hybrid air-conditioning system using arti_cial neural network", Applied Thermal Engineering, 98, pp. 1091- 1103 (2016). 19. Jani, D., Mishra, M., and Sahoo, P. Performance prediction of solid desiccant-vapor compression hybrid airconditioning system using arti_cial neural network", Energy, 103, pp. 618-629 (2016). 20. Jani, D., Mishra, M., and Sahoo, P. Performance studies of hybrid solid desiccant-vapor compression air-conditioning system for hot and humid climates", Energy and Buildings, 102, pp. 284-292 (2015). 21. Stritih, U. and Medved, S. Use of phase change materials in the wall with TIM", Strojni_ski Vestnik-Journal of Mechanical Engineering, 40(3-4), p. 6 (1994). 22. Shen, J., Lassue, S., Zalewski, L., and Huang, D. Numerical study on thermal behavior of classical or composite Trombe solar walls", Energy and Buildings, 39(8), pp. 962-974 (2007). 23. Fern_andez-Gonz_alez, A. Analysis of the thermal performance and comfort conditions produced by _ve di_erent passive solar heating strategies in the United States Midwest", Solar Energy, 81(5), pp. 581-593 (2007). 24. Stazi, F., Di Perna, C., Filiaci, C., and Stazi, A. The solar wall in the Italian climates", World Academy of Science, Engineering and Technology, 37, pp. 31-39 (2008). 25. Stazi, F., Mastrucci, A., and di Perna, C. The behaviour of solar walls in residential buildings with di_erent insulation levels: an experimental and numerical study", Energy and Buildings, 47, pp. 217-229 (2012). 26. Ahmed, M., Kattab, N., and Fouad, M. Evaluation and optimization of solar desiccant wheel performance", Renewable Energy, 30(3), pp. 305-325 (2005). 27. Esfandiari Nia, F., van Paassen, D., and Saidi, M.H. Modeling and simulation of desiccant wheel for air conditioning", Energy and Buildings, 38(10), pp. 1230- 1239 (2006). 28. Mathur, J., Bansal, N., Mathur, S., and Jain, M. Experimental investigations on solar chimney for room ventilation", Solar Energy, 80(8), pp. 927-935 (2006). 29. Patankar, S., Numerical Heat Transfer and Fluid Flow, CRC press (1980). 30. Du_e, J.A. and Beckman, W.A., Solar Engineering of Thermal Processes, John Wiley & Sons (2013). 31. Holman, J., Heat transfer, McGraw-Hill Book Company, Soythern Methodist University (1986). 32. Kodama, A., Hirayama, T., Goto, M., Hirose, T., and Critoph, R. The use of psychrometric charts for the optimisation of a thermal swing desiccant wheel", Applied Thermal Engineering, 21(16), pp. 1657-1674 (2001). 33. Heidarinejad, G. and Pasdarshahri, H. The e_ects of operational conditions of the desiccant wheel on the performance of desiccant cooling cycles", Energy and Buildings, 42(12), pp. 2416-2423 (2010). 34. Bansal, N., Mathur, J., Mathur, S., and Jain, M. Modeling of window-sized solar chimneys for ventilation", Building and Environment, 40(10), pp. 1302- 1308 (2005). 35. Bansal, N.K., Mathur, R., and Bhandari, M.S. Solar chimney for enhanced stack ventilation", Building and Environment, 28(3), pp. 373-377 (1993). 36. Bansal, N., Mathur, R., and Bhandari, M. A study of solar chimney assisted wind tower system for natural ventilation in buildings", Building and Environment, 29(4), pp. 495-500 (1994).