Increasing the energy and exergy efficiencies of a collector using porous and recycling system

作者: Akbar Arabhosseini , Hadi Samimi-Akhijahani , Mehrnosh Motahayyer

DOI: 10.1016/J.RENENE.2018.07.132

关键词: ExergyPorosityEnvironmental scienceThermal energySolar dryerMass flow rateEnvironmental engineeringThermal efficiencyThermalAirflow

摘要: Abstract Performance of a collector in solar dryer, equipped with porous and recycling system was investigated at three airflow rates (0.009, 0.018 0.036 kg/s). The CFD model applied for developing the thermal response simulation outlet air temperature, energy exergy parameters. predicted experimental data were analyzed. results illustrated quit good correlation between by data. maximum efficiencies 63.4% 22.3%, respectively, mass flow rate 0.009 kg/s. In general, not only improved efficiency but also accelerated drying time. about 19.1% 19.5%, respectively higher than without them. total (21.24 MJ) produced No adverse effect found on quality dried products employing dryer.

参考文章(82)
M. Aghbashlo, M.H. Kianmehr, A. Arabhosseini, T. Nazghelichi, Modelling the carrot thin-layer drying in a semi-industrial continuous band dryer. Czech Journal of Food Sciences. ,vol. 29, pp. 528- 538 ,(2018) , 10.17221/158/2010-CJFS
N. Yagnesh Sharma, K. Vasudeva Karanth, M. S. Manjunath, Numerical Simulation of a Solar Flat Plate Collector using Discrete Transfer Radiation Model (DTRM) - A CFD Approach world congress on engineering. pp. 2355- 2360 ,(2011)
N. Yagnesh Sharma, K. Vasudeva Karanth, M S Manjunath, A Comparative CFD Study on Solar Dimple Plate Collector with Flat Plate Collector to Augment the Thermal Performance World Academy of Science, Engineering and Technology, International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering. ,vol. 6, pp. 2246- 2252 ,(2012)
B. Ghobadian, M. H. Khoshtaghaza, S. Minaei, H. Mortezapour, Drying Kinetics and Quality Characteristics of Saffron Dried with a Heat Pump Assisted Hybrid Photovoltaic-thermal Solar Dryer Journal of Agricultural Science and Technology. ,vol. 16, pp. 33- 45 ,(2014)
T. Bartzanas, T. Boulard, C. Kittas, Numerical simulation of the airflow and temperature distribution in a tunnel greenhouse equipped with insect-proof screen in the openings Computers and Electronics in Agriculture. ,vol. 34, pp. 207- 221 ,(2002) , 10.1016/S0168-1699(01)00188-0
S. Farahat, F. Sarhaddi, H. Ajam, Exergetic optimization of flat plate solar collectors Renewable Energy. ,vol. 34, pp. 1169- 1174 ,(2009) , 10.1016/J.RENENE.2008.06.014
S.E. Cunningham, W.A.M. Mcminn, T.R.A. Magee, P.S. Richardson, Experimental study of rehydration kinetics of potato cylinders Food and Bioproducts Processing. ,vol. 86, pp. 15- 24 ,(2008) , 10.1016/J.FBP.2007.10.008