Performance assessments and techno and enviro‐economic analyses on forced convection mixed mode solar dryer

2021 ◽  
Author(s):  
Jasinta Poonam Ekka ◽  
Muthukumar Palanisamy
Keyword(s):  
Forced Convection ◽  
Mixed Mode ◽  
Performance Assessments ◽  
Solar Dryer ◽  
Economic Analyses

Experimental parametric study of a mixed-mode forced convection solar dryer equipped with a PV/T air collector

Solar Energy ◽  
2018 ◽  
Vol 171 ◽  
pp. 751-760 ◽  
Author(s):  
M. Fterich ◽  
H. Chouikhi ◽  
H. Bentaher ◽  
A. Maalej
Keyword(s):  
Forced Convection ◽  
Parametric Study ◽  
Mixed Mode ◽  
Solar Dryer

Effect of nano cupric oxide coating on the forced convection performance of a mixed-mode flat plate solar dryer

2020 ◽  
Vol 155 ◽  
pp. 1165-1172 ◽  
Author(s):  
S. Sivakumar ◽  
C. Velmurugan ◽  
D.S. Ebenezer Jacob Dhas ◽  
A. Brusly Solomon ◽  
K. Leo Dev Wins
Keyword(s):  
Flat Plate ◽  
Forced Convection ◽  
Mixed Mode ◽  
Cupric Oxide ◽  
Oxide Coating ◽  
Solar Dryer

Performance analyses of mixed mode forced convection solar dryer for drying of stevia leaves

Solar Energy ◽  
2019 ◽  
Vol 188 ◽  
pp. 507-518 ◽  
Author(s):  
D.V.N. Lakshmi ◽  
P. Muthukumar ◽  
Apurba Layek ◽  
Prakash Kumar Nayak
Keyword(s):  
Forced Convection ◽  
Mixed Mode ◽  
Solar Dryer ◽  
Performance Analyses

scholarly journals Performance Evaluation of a Forced Convection Mixed-Mode Solar Grain Dryer with a Preheater

2021 ◽  
Vol 10 (4) ◽  
pp. 41-51
Author(s):  
Johannes P. Angula ◽  
Freddie Inambao
Keyword(s):  
Forced Convection ◽  
Thermal Efficiency ◽  
Mixed Mode ◽  
Total Mass ◽  
Initial Moisture Content ◽  
Food Preservation ◽  
Drying Rate ◽  
Drying Time ◽  
Solar Dryer ◽  
Maize Cobs

In this study the performance of a forced convection mixed-mode solar grain dryer integrated with a preheater was evaluated. The type of grains used in the experiment were 72 freshly harvested maize cobs with a total mass of 17 kg. The experiment was conducted at various airflow speeds and preheater temperatures ranging from 0.5 m/s to 2 m/s and 30 ℃ to 40 ℃, respectively. The aim of the study was to improve the performance of an existing indirect solar dryer which was converted to a mixed-mode solar dryer. The initial thermal efficiency of the indirect solar dryer before modification was 36 %. The results from the experiment indicated a maximum thermal efficiency of 58.8 % with a corresponding drying rate of 0.0438 kg/hr. The minimum thermal efficiency for the mixed-mode solar grain dryer system was 47.7 %, with a corresponding drying rate of 0.0356 kg/hr. The fastest drying time of maize cobs was achieved in 4 hours and 34 minutes from an initial moisture content of 24.7 % wb to 12.5 % wb. The findings show a significant improvement in the dryer system's performance. This is a clear indication that operating a solar dryer system in mixed-mode operation with forced convection and the assistance of a preheater or backup heater can significantly improve drying processes and increase food preservation.

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