Thermal Modeling of Indirect Solar Drying System: An Experimental Validation
The expressions for crop and moist air temperatures, drying rate and efficiency of indirect solar drying with phase change material (PCM) storage systems in quasi-steady state conditions have been derived. The analysis is based on the basic energy balance for the system. A computer model has been developed to predict the performance of the solar dryers. Experimental validation of the thermal model has been carried out by using modified heat transfer coefficients. Internal heat and mass transfer coefficients have been evaluated with PCM for March 24, 2014 in Varanasi, India. A fair agreement has been observed between theoretical and experimental results by using the modified internal heat and mass transfer coefficients.
Arun. S. Majumdar,” Hand book of Industrial Drying” Taylor and Francis Group,
Third Edition, 2006, page No. 23.
Sachin V. Jangam, C.L. Law and Arun S. Majumdar,’ Drying of foods, vegetables
and fruits, Vol I (2010), ISBN: 978-981-08-6759-1.
Togrul, I.T., and D. Pehlivan.(2004). Modeling of thin layer drying kinetics of some
fruits under open-airsun drying process. Journal of Food Engineering 65 (3): 413–
Togrul, I.T., and H. Togrul. (2007). Determination of moisture transport parameters
of some fruits underopen sun drying conditions. International Journal of Green
Energy 4 (4): 397–408.
Shukla S.K., Saraswat D.C. and Raj T. (2008), Evaluation of convective heat and
mass transfer in open sun and greenhouse drying, International Journal of Energy
Technology and Policy, 6: (5/6) 543-553.
Krokida, M.K., and Z.B. Maroulis. (1997) Effect of drying method on shrinkage and
porosity Drying Technology 15 (10): 2441–2458.
Krokida, M.K., E. Tsami, and Z.B. Maroulis. (1998) Kinetics on color changes during
drying of some fruits and vegetables. Drying Technology 16 (3–5): 667–685.
Yang, C.S.T., and W.A. Atallah. (1985). Effect of four drying methods on the quality
of immediate moisture blue berries. Journal of Food Science 50: 1233–1237.
Ehsan Mohseni-Languri, Hessam Taherian Masoodi, and John R. Reisel,(2009) “An
Energy and Exergy Study of a Solar Thermal Air Collector,” Thermal Science: vol
T. Kiatsiriroat, W. Jiatrakul, A. Nunntaphan, (2007) “ Experimental Study on Heat
Transfer Enhancement in Solar Air Heater by Electric Field,” Heat Transfer Engineering, vol 28 (1) 38-41.
Ekechukwu, Norton B., “ Review of Solar energy drying system (ii): an overview
of solar drying Technology. Energy conversion and management 1999:40(6); 615-
O.V. Ekechukwu, “ Review of solar- energy drying systems I: an overview of drying
principles and theory.” Energy conversion & Management 1999; 40; 593-613.
Sodha. M.S., Dang A., Bansal P.K, Sharma S.B., “ An analytical and experimental
study of open sun drying and a cabinet type drier. Energy conversion management:
Anwar, S.I. and Tiwari, G.N.,” Evaluation of convective heat transfer coefficient
in crop drying under open sun drying, Energy conversion and management, 42,
Garg, H.P. and Rakesh Kumar,” Thermal modeling and performance prediction of
drying processes under open sun drying, Http//www.kenes.com/Ises.Abstract/
Sodha, M.S., Mathur, S.S., and Malik,” Reviews of renewable energy resources, Wiley
Eastern Limited (1984).
Sodha, M.S. Dang, A., Bansal, P.K.,and Sharma,S.B.,” An analytical and experimental
study of open sun drying and a cabinet type dryer, Energy conversion and
management, 25, 263(1985).
Arata, A. and Sharma, V.K.,” Performance evaluation of solar assisted dryers
for low temperature drying applications I. Plant description, Renew Energy,
Pawar, R.S., Takwale, M.G., Bhide,V.G.,” Solar drying of custard powder,” Energy
conversion and management; 1995;36; 1085-96.
T. Kiatsiriroat,W. Jiatrakul, A. Nunntaphan, (2007) “ Experimental Study on Heat
Transfer Enhancement in Solar Air Heater by Electric Field,” Heat Transfer Engineering,
Akinola, A.O. and O.P. Fapetu, 2006.,” Exergetic Analysis of a Mixed- Mode Solar
Dryer, “Journal of Engineering and Applied Sciences 1 (3): 205-210.
Onder Ozgener, Arif Hepbasil.,” Development of geothermal energy applications
in Turkey: a review.” Renew Sustainability Energy Rev 2004; 8(5): 433-60.
M.K. Gupta, S.C. Kaushik, (2009), “ Performance Evaluation of Solar Air Heater for
various Artificial Roughness geometries Based on Energy, Effective and Exergy Efficiencies,’’,
Renewable Energy, vol. 34, 465-476.
Donation Njomo, (2006) “Sensitivity Analysis of Thermal Performances of Flat
Plate Solar Air Heaters,” Heat Mass Transfer, 42, 1065-1081.
Telkes, Encyclopedia of Energy efficient building design 391 Practical cases, Solar
Age vol 1-2, Solar Vision Incorporated 1975.
Lane. G.A.,” Solar Heat Storage; Latent heat materials- vol I, Background and Scientific
principles, C.R.C. Press, Florida (1983).
Telkes, Solar Age vol 3, Solar vision incorporated.
Sakamon Devahastin, Saova Pitaksuriyarat (2005), “ Use of latent heat storage to
conserve energy during and its effect on drying kinetics of a food products,” Elsevier,
Applied Thermal Engg.
Sharma. S.D. and Kazunobu, Sagra (2005), “Latent Heat Storage Materials and Systems:
A Review, International Journal of Green Energy, 2:1, 1-16.
Moh. M. Farid, Amar M. Khudhair, said AL-Hallaj et al. . Elsevier, “Energy
conversion and management,” 1597-1615.
Hadorn, J.C. 2004, “ Storage solutions for solar thermal energy.” Freiburg Solar
Academy, Swiss, Switzerland. Amar M. Khudhair, Moh. M. Farid 2004, “A review on energy conservation in
building application with thermal storage by latent heat using phase change materials.”
Energy conservation and Management 45 (2004) 263-275.
M.M. Alkilani, K. Sopian, Sohif Mat, M.A. Alghoul et al. (2009), “Output Air Temp
prediction in a Solar Air Heater Integrated with phase change material.” European
Journal of scientific Research, ISSN 1450-216 × Vol. 27 NO.3 , pp 334-341.
V.V. Tyagi, A.K. Pandey, S.C. Kaushik, S.K. Tyagi 2011, “Thermal performance
Evaluation of a solar air heater with and without Thermal energy storage” springer
J Thrum Anal calorim.
Shukla S.K., Saraswat, D.C., Raj T. (2008), Evaluation of convective heat and mass
transfer in open sun and greenhouse drying, International Journal of Energy Technology
and Policy, 6: (5/6) 543-553.
Tewari, G.N. and Suneja, S.,” Performance evaluation of an inverted absorber solar
distillation system, Energy conversion and management, 39,173(1997).