MONITORING EFFECTIVE PARAMETERS OF DRYING LEAFY VEGETABLES IN A FORCED-CONVECTION SOLAR DRYER

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BAGHERI N.; KEYHANI A.R.; MOHTASEBI S.S.; ALIMARDANI R.

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Journal: JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH Year:2010 | Volume:10 | Issue:4 Page(s): 73-88

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Title

MONITORING EFFECTIVE PARAMETERS OF DRYING LEAFY VEGETABLES IN A FORCED-CONVECTION SOLAR DRYER

Author(s)

BAGHERI N. | KEYHANI A.R. | MOHTASEBI S.S. | ALIMARDANI R. | Issue Writer Certificate

Keywords

DRYING PARAMETERSQ3

FORCED-CONVECTIONQ3

MONITORINGQ3

SOLAR DRYERQ3

Abstract

Monitoring the effective parameters of drying crops is necessary to evaluate and determine system performance under real conditions. Hence, a MONITORING system was constructed to determine the performance of a vegetation FORCED-CONVECTION SOLAR DRYER. Digital temperature sensors were set up in the air inlet and outlet of the collector and the air outlet of the drying chamber. A program was written using visual Basic 6 software to register sensor data and make calculations. To evaluate the dryer, experiments were carried out over eight hours between 10 am and 6 pm during the summer. Mint was used for drying in all experiments on 5Cm high trays of the dryer chamber. The results showed that the radiation energy, the heat energy absorbed by the collector and the energy required for product evaporation had linear relationships with temperature. Radiation energy increased at first and decreased later during the drying time. The results showed that the average temperature in the collector air inlet, outlet and drying chamber air outlet were 38.1oC, 54.7oC and 45.5oC, respectively. The average maximum and minimum energy efficiency were 49% and 14.7%, respectively. The average radiation energy and required energy for product evaporation were 4572.4 and 2772.2 KJ, respectively. The drying curve was Mwb=1.827e-0.4857t with R2=0.945.

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APA: Copy

BAGHERI, N., KEYHANI, A.R., MOHTASEBI, S.S., & ALIMARDANI, R.. (2010). MONITORING EFFECTIVE PARAMETERS OF DRYING LEAFY VEGETABLES IN A FORCED-CONVECTION SOLAR DRYER. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 10(4), 73-88. SID. https://sid.ir/paper/28046/en

Vancouver: Copy

BAGHERI N., KEYHANI A.R., MOHTASEBI S.S., ALIMARDANI R.. MONITORING EFFECTIVE PARAMETERS OF DRYING LEAFY VEGETABLES IN A FORCED-CONVECTION SOLAR DRYER. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH[Internet]. 2010;10(4):73-88. Available from: https://sid.ir/paper/28046/en

IEEE: Copy

N. BAGHERI, A.R. KEYHANI, S.S. MOHTASEBI, and R. ALIMARDANI, “MONITORING EFFECTIVE PARAMETERS OF DRYING LEAFY VEGETABLES IN A FORCED-CONVECTION SOLAR DRYER,” JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, vol. 10, no. 4, pp. 73–88, 2010, [Online]. Available: https://sid.ir/paper/28046/en

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