Vishnuvardhan Reddy

Scopus Publications

Experimental Evaluation of Forced Convection Indirect Type Solar Dryer Without and With Energy Storage System During Drying Green Chilli
Vishnuvardhan Reddy Mugi, Mulatu C. Gilago, V. P. Chandramohan, Sandeep Kumar Mechiri
Journal of Food Process Engineering, 2026
ABSTRACT The indirect type solar dryer (ITSD) is popular due to higher efficiency and better hygienic food products compared to open sun drying. In the present study, an experimental analysis of drying the green chilli in a forced convection ITSD without a thermal energy storage system (TSS) (mode‐1) and with TSS (mode‐2) was executed to differentiate the attainment of the systems and drying parameters. TSS is a rectangular box that is made up of polycarbonate sheets and was kept on the steel structure inside the drying chamber. The TSS box consists of 50 concentric tubes that contain paraffin wax which is used to store and release the heat energy during experiments. Experiments were done on adjacent days in both modes. The performance, thermal and drying parameters, and drying models were found and compared in both modes. The best drying model was found to be the two‐term exponential model and modified Page model for mode‐1 and mode‐2, respectively. The drying rate was 0.5523 and 0.7661 kg/h (average) in mode‐1 and mode‐2, and the drying efficiency was 11.8% and 17.03%, respectively. The green chilli reached its final moisture content at 15 and 9 daytime hours in mode‐1 and mode‐2, respectively. The temperature in tray‐1 was enhanced from 7.8°C to 8.8°C in mode‐2 due to the release of heat from TSS after the sunset. Uncertainty analysis was executed, and the outcomes were compared with existing analyses.
Performance Evaluation of Indirect Solar Dryer under Passive and Active Modes during Drying Beetroot Slices
Vishnuvardhan Reddy Mugi, Mulatu Chake Gilago, Velayudhan Parvathy Chandramohan, Valasingam Suresh Babu
Heat Transfer Engineering, 2025
In the present work, the drying characteristics of beetroot slabs, thermal and performance characteristics were estimated and analyzed in passive (mode-A) and active (mode-B) indirect solar dryers (ISD). The conventional mode-A dryer was updated with a diverging duct that comprises direct current fans run by photo-voltaic panels to make the mode-B dryer. In mode-B, the drying time of 16.67 and 42.31% is saved compared to mode-A and open sun drying (OSD), respectively, to achieve a final moisture content of 0.057 from 7.7535 kg/kg of dry basis. The Two-term exponential model was observed to be a perfect fit model for beetroot slices in both modes of ISD and OSD, respectively. The improvements in drying rate, dryer and collector efficiencies and specific moisture extraction rate in mode-B over mode-A are found to be 19.97, 19.18, 8.34 and 14.23%, respectively. It is found that mode-B has better thermal and performance properties than mode-A.
Experimental evaluation of performance, drying and thermal parameters of guava slabs dried in a forced convection indirect solar dryer without and with thermal energy storage
Vishnuvardhan Reddy Mugi, Mulatu C. Gilago, Chandramohan V.P., Suresh Babu Valasingam
Renewable Energy, 2024
Thermal performance of indirect solar dryer and drying kinetics of guava without and with thermal energy storage
V. R. Mugi, M. C. Gilago, V. P. Chandramohan
International Journal of Environmental Science and Technology, 2023
Performance studies on indirect forced convection solar dryer without and with thermal energy storage during drying muskmelon slices
Vishnuvardhan Reddy Mugi, Mulatu C. Gilago, V. P. Chandramohan
Journal of Thermal Analysis and Calorimetry, 2023
Evaluating the environ-economic and exergy-energy impacts of drying carrots in passive and active mode solar dryers
Mulatu Chake Gilago, Vishnuvardhan Reddy Mugi, V.P. Chandramohan
Thermal Science and Engineering Progress, 2023
Evaluation of drying kinetics of carrot and thermal characteristics of natural and forced convection indirect solar dryer
Mulatu Chake Gilago, Vishnuvardhan Reddy Mugi, Chandramohan V.P.
Results in Engineering, 2023
The thermal characteristics of natural (setup-A) and forced (setup-B) convection indirect solar dryers were evaluated and compared by drying carrot slices. Several modifications were made to setup-A to promote setup-B, including a trapezoidal tunnel, and central processing unit fans which were powered by photovoltaic panels. From the experimental solution, the performance terminologies and the drying characteristics of the carrot were examined. The actual rate of heat supplied to setup-A was 705.64 W and setup-B was 789.55 W. In the respective tests, collectors had an average efficiency of 56.84% and 68.74%. Accordingly, the drying efficiencies for the same were 7.5% and 9.55%, respectively. As a result of the aforementioned calculations, activation energy, effective diffusion coefficient, mass and heat transfer coefficients for setup-A and setup-B were 42.71 kJ/mol and 37.85 kJ/mol, 6.32 × 10−9 m2/s and 7.25 × 10−9 m2/s, 0.0055 m/s and 0.0065 m/s, and 6.32 W/m2 K and 7.25 W/m2 K, respectively. The setup-B showed a better effective moisture extraction rate and energy consumption. Characteristic relationships between moisture content vs diffusion, heat and mass transport coefficients were derived. Uncertainty estimations were performed to verify the precision of the findings.
Evaluating the performance of an indirect solar dryer and drying parameters of pineapple: comparing natural and forced convection
Mulatu C. Gilago, Vishnuvardhan Reddy Mugi, Chandramohan V.P., Suresh S.
Journal of Thermal Analysis and Calorimetry, 2023
Analysis and comparison of the performance parameters of passive and active indirect solar dryers with heat storage facility while drying carrot
Mulatu Chake Gilago, Vishnuvardhan Reddy Mugi, Chandramohan Velayudhan Parvathy
Environmental Science and Pollution Research, 2023
Performance assessment of passive indirect solar dryer comparing without and with heat storage unit by investigating the drying kinetics of carrot
Mulatu C. Gilago, Vishnuvardhan Reddy Mugi, Chandramohan V．P．
Energy Nexus, 2023
The present study examined the drying kinetics of carrots and the effectiveness of passive indirect solar dryer without (setup-I) and with (setup-II) thermal energy storage (TES). A module containing paraffin wax as a TES unit was incorporated after the test was completed in setup-I to create setup-II. The sample slices were dried in setup-I and setup-II at a drying rate of 0.5 and 0.59 kg/h, respectively. In setup-I, the sample dried from 9.13 to 0.478 dry basis (db) in 16 h, whereas, setup-II took 15 h. The thermal efficiency of the solar heater and actual heat supply for the same were 56.84 & 60.79% and 705.64 & 730.45 W, respectively. Similarly, the average heat and mass transfer coefficients (h and hm) were 6.32 & 7.08 W/m2 K and 0.0055 & 0.0062 m/s, and average effective diffusivity (De) for the same setups were 6.7 × 10−9 and 7.24 × 10−9 m2/s, respectively. Furthermore, the specific energy consumption and specific moisture extraction rate for the same were 3.5 & 0.28 kWh/kg and 0.29 & 3.62 kg/kWh, respectively. Setups I and II had an average drying efficiency of 7.5 and 10.25%, respectively. The activation energy was evaluated for both setups. The De, h and hm were correlated with moisture content for both setups. In addition to helping the drying process to be completed in a day, setup-II performed better in all the evaluated parameters than setup-I. To ensure the reliability of the results, an experimental uncertainty analysis was conducted.
Performance analysis and drying kinetics of beetroot slices dried in an innovative solar dryer without and with thermal storage unit
Vishnuvardhan Reddy Mugi, Mulatu C. Gilago, V.P. Chandramohan
Energy Sources Part A Recovery Utilization and Environmental Effects, 2023
Drying Kinetics of Muskmelon Slices and Characteristics of an Indirect Solar Dryer under Natural and Forced Convection: A Comparative Study
Vishnuvardhan Reddy Mugi, V. P. Chandramohan
Applied Solar Energy English Translation of Geliotekhnika, 2022
Energy and exergy investigation of indirect solar dryer under natural and forced convection while drying muskmelon slices
Vishnuvardhan Reddy Mugi, Mulatu C. Gilago, V.P. Chandramohan
Energy Nexus, 2022
Investigation of exergy-energy and environ-economic performance parameters of active indirect solar dryer for pineapple drying without and with energy storage unit
Mulatu C. Gilago, Vishnuvardhan Reddy Mugi, V.P. Chandramohan
Sustainable Energy Technologies and Assessments, 2022
Energy, exergy, economic and environmental (4E) analysis of passive and active-modes indirect type solar dryers while drying guava slices
Vishnuvardhan Reddy Mugi, V.P. Chandramohan
Sustainable Energy Technologies and Assessments, 2022
Energy-exergy and environ-economic (4E) analysis while drying ivy gourd in a passive indirect solar dryer without and with energy storage system and results comparison
Mulatu C. Gilago, Vishnuvardhan Reddy Mugi, Chandramohan V.P.
Solar Energy, 2022
A review of natural energy storage materials used in solar dryers for food drying applications
Vishnuvardhan Reddy Mugi, Pritam Das, Ramakrishna Balijepalli, Chandramohan VP
Journal of Energy Storage, 2022
Comparison of drying kinetics, thermal and performance parameters during drying guava slices in natural and forced convection indirect solar dryers
Vishnuvardhan Reddy Mugi, Chandramohan V.P.
Solar Energy, 2022
Experimental investigation of drying kinetics of green chilli and okra using indirect solar dryer with evaluation of dryer performance
Mallikarjuna Goud, Mugi Vishnu Vardhan Reddy, V. P. Chandramohan, Abhay Lingayat, V. R. K. Raju, S. Suresh
International Journal of Ambient Energy, 2022
Shrinkage, effective diffusion coefficient, surface transfer coefficients and their factors during solar drying of food products – A review
Vishnuvardhan Reddy Mugi, V.P. Chandramohan
Solar Energy, 2021
Energy, exergy and economic analysis of an indirect type solar dryer using green chilli: A comparative assessment of forced and natural convection
Vishnuvardhan Reddy Mugi, V.P. Chandramohan
Thermal Science and Engineering Progress, 2021
Energy and exergy analysis of forced and natural convection indirect solar dryers: Estimation of exergy inflow, outflow, losses, exergy efficiencies and sustainability indicators from drying experiments
Vishnuvardhan Reddy Mugi, V.P. Chandramohan
Journal of Cleaner Production, 2021
Evaluation of drying kinetics and performance parameters of indirect type solar dryer during drying of Capsicum annuum
D. Mallikarjuna Goud, Mugi Vishnu Vardhan Reddy, V.P. Chandramohan
International Journal of Energy Technology and Policy, 2021
A novel indirect solar dryer with inlet fans powered by solar PV panels: Drying kinetics of Capsicum Annum and Abelmoschus esculentus with dryer performance
Mallikarjuna Goud, Mugi Vishnu Vardhan Reddy, Chandramohan V.P., Suresh S.
Solar Energy, 2019

RECENT SCHOLAR PUBLICATIONS

Performance evaluation of indirect solar dryer under passive and active modes during drying beetroot slices
VR Mugi, MC Gilago, VP Chandramohan, VS Babu
Heat Transfer Engineering 46 (7), 645-659 , 2025
2025
Citations: 6
Experimental evaluation of performance, drying and thermal parameters of guava slabs dried in a forced convection indirect solar dryer without and with thermal energy storage
VR Mugi, MC Gilago, SB Valasingam
Renewable Energy 223, 120005 , 2024
2024
Citations: 27
Thermal performance of indirect solar dryer and drying kinetics of guava without and with thermal energy storage
VR Mugi, MC Gilago, VP Chandramohan
International Journal of Environmental Science and Technology 20 (12), 13619 … , 2023
2023
Citations: 8
Performance studies on indirect forced convection solar dryer without and with thermal energy storage during drying muskmelon slices: VR Mugi et al.
VR Mugi, MC Gilago, VP Chandramohan
Journal of Thermal Analysis and Calorimetry 148 (17), 9201-9216 , 2023
2023
Citations: 9
Evaluating the environ-economic and exergy-energy impacts of drying carrots in passive and active mode solar dryers
MC Gilago, VR Mugi, VP Chandramohan
Thermal Science and Engineering Progress 43, 101956 , 2023
2023
Citations: 30
Evaluation of drying kinetics of carrot and thermal characteristics of natural and forced convection indirect solar dryer
MC Gilago, VR Mugi
Results in Engineering 18, 101196 , 2023
2023
Citations: 38
Evaluating the performance of an indirect solar dryer and drying parameters of pineapple: comparing natural and forced convection
MC Gilago, VR Mugi, C VP, S S
Journal of Thermal Analysis and Calorimetry 148 (9), 3701-3709 , 2023
2023
Citations: 23
Performance analysis and drying kinetics of beetroot slices dried in an innovative solar dryer without and with thermal storage unit
VR Mugi, MC Gilago, VP Chandramohan
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 45 … , 2023
2023
Citations: 10
Analysis and comparison of the performance parameters of passive and active indirect solar dryers with heat storage facility while drying carrot
MC Gilago, VR Mugi, C Velayudhan Parvathy
Environmental Science and Pollution Research 30 (19), 56246-56258 , 2023
2023
Citations: 13
Performance assessment of passive indirect solar dryer comparing without and with heat storage unit by investigating the drying kinetics of carrot
MC Gilago, VR Mugi
Energy Nexus 9, 100178 , 2023
2023
Citations: 31
Experimental investigation of drying kinetics of green chilli and okra using indirect solar dryer with evaluation of dryer performance
M Goud, MVV Reddy, VP Chandramohan, A Lingayat, VRK Raju, ...
International Journal of Ambient Energy 43 (1), 5284-5296 , 2022
2022
Citations: 17
Drying kinetics of muskmelon slices and characteristics of an indirect solar dryer under natural and forced convection: A comparative study
VR Mugi, VP Chandramohan
Applied Solar Energy 58 (6), 829-846 , 2022
2022
Citations: 7
Energy and exergy investigation of indirect solar dryer under natural and forced convection while drying muskmelon slices
VR Mugi, MC Gilago, VP Chandramohan
Energy Nexus 8, 100153 , 2022
2022
Citations: 40
Investigation of exergy-energy and environ-economic performance parameters of active indirect solar dryer for pineapple drying without and with energy storage unit
MC Gilago, VR Mugi, VP Chandramohan
Sustainable Energy Technologies and Assessments 53, 102701 , 2022
2022
Citations: 64
Energy, exergy, economic and environmental (4E) analysis of passive and active-modes indirect type solar dryers while drying guava slices
VR Mugi, VP Chandramohan
Sustainable Energy Technologies and Assessments 52, 102250 , 2022
2022
Citations: 56
Energy-exergy and environ-economic (4E) analysis while drying ivy gourd in a passive indirect solar dryer without and with energy storage system and results comparison
MC Gilago, VR Mugi
Solar Energy 240, 69-83 , 2022
2022
Citations: 80
A review of natural energy storage materials used in solar dryers for food drying applications
VR Mugi, P Das, R Balijepalli, C Vp
Journal of Energy Storage 49, 104198 , 2022
2022
Citations: 107
Comparison of drying kinetics, thermal and performance parameters during drying guava slices in natural and forced convection indirect solar dryers
VR Mugi, VP Chandramohan
Solar Energy 234, 319-329 , 2022
2022
Citations: 66
Shrinkage, effective diffusion coefficient, surface transfer coefficients and their factors during solar drying of food products–A review
VR Mugi, VP Chandramohan
Solar Energy 229, 84-101 , 2021
2021
Citations: 70
Energy, exergy and economic analysis of an indirect type solar dryer using green chilli: A comparative assessment of forced and natural convection
VR Mugi, VP Chandramohan
Thermal Science and Engineering Progress 24, 100950 , 2021
2021
Citations: 156

MOST CITED SCHOLAR PUBLICATIONS

Energy and exergy analysis of forced and natural convection indirect solar dryers: Estimation of exergy inflow, outflow, losses, exergy efficiencies and sustainability …
VR Mugi, VP Chandramohan
Journal of Cleaner Production 282, 124421 , 2021
2021
Citations: 210
A novel indirect solar dryer with inlet fans powered by solar PV panels: Drying kinetics of Capsicum Annum and Abelmoschus esculentus with dryer performance
M Goud, MVV Reddy
Solar Energy 194, 871-885 , 2019
2019
Citations: 168
Energy, exergy and economic analysis of an indirect type solar dryer using green chilli: A comparative assessment of forced and natural convection
VR Mugi, VP Chandramohan
Thermal Science and Engineering Progress 24, 100950 , 2021
2021
Citations: 156
A review of natural energy storage materials used in solar dryers for food drying applications
VR Mugi, P Das, R Balijepalli, C Vp
Journal of Energy Storage 49, 104198 , 2022
2022
Citations: 107
Energy-exergy and environ-economic (4E) analysis while drying ivy gourd in a passive indirect solar dryer without and with energy storage system and results comparison
MC Gilago, VR Mugi
Solar Energy 240, 69-83 , 2022
2022
Citations: 80
Shrinkage, effective diffusion coefficient, surface transfer coefficients and their factors during solar drying of food products–A review
VR Mugi, VP Chandramohan
Solar Energy 229, 84-101 , 2021
2021
Citations: 70
Comparison of drying kinetics, thermal and performance parameters during drying guava slices in natural and forced convection indirect solar dryers
VR Mugi, VP Chandramohan
Solar Energy 234, 319-329 , 2022
2022
Citations: 66
Investigation of exergy-energy and environ-economic performance parameters of active indirect solar dryer for pineapple drying without and with energy storage unit
MC Gilago, VR Mugi, VP Chandramohan
Sustainable Energy Technologies and Assessments 53, 102701 , 2022
2022
Citations: 64
Energy, exergy, economic and environmental (4E) analysis of passive and active-modes indirect type solar dryers while drying guava slices
VR Mugi, VP Chandramohan
Sustainable Energy Technologies and Assessments 52, 102250 , 2022
2022
Citations: 56
Energy and exergy investigation of indirect solar dryer under natural and forced convection while drying muskmelon slices
VR Mugi, MC Gilago, VP Chandramohan
Energy Nexus 8, 100153 , 2022
2022
Citations: 40
Evaluation of drying kinetics of carrot and thermal characteristics of natural and forced convection indirect solar dryer
MC Gilago, VR Mugi
Results in Engineering 18, 101196 , 2023
2023
Citations: 38
Performance assessment of passive indirect solar dryer comparing without and with heat storage unit by investigating the drying kinetics of carrot
MC Gilago, VR Mugi
Energy Nexus 9, 100178 , 2023
2023
Citations: 31
Evaluating the environ-economic and exergy-energy impacts of drying carrots in passive and active mode solar dryers
MC Gilago, VR Mugi, VP Chandramohan
Thermal Science and Engineering Progress 43, 101956 , 2023
2023
Citations: 30
Experimental evaluation of performance, drying and thermal parameters of guava slabs dried in a forced convection indirect solar dryer without and with thermal energy storage
VR Mugi, MC Gilago, SB Valasingam
Renewable Energy 223, 120005 , 2024
2024
Citations: 27
Evaluating the performance of an indirect solar dryer and drying parameters of pineapple: comparing natural and forced convection
MC Gilago, VR Mugi, C VP, S S
Journal of Thermal Analysis and Calorimetry 148 (9), 3701-3709 , 2023
2023
Citations: 23
Experimental investigation of drying kinetics of green chilli and okra using indirect solar dryer with evaluation of dryer performance
M Goud, MVV Reddy, VP Chandramohan, A Lingayat, VRK Raju, ...
International Journal of Ambient Energy 43 (1), 5284-5296 , 2022
2022
Citations: 17
Analysis and comparison of the performance parameters of passive and active indirect solar dryers with heat storage facility while drying carrot
MC Gilago, VR Mugi, C Velayudhan Parvathy
Environmental Science and Pollution Research 30 (19), 56246-56258 , 2023
2023
Citations: 13
Performance analysis and drying kinetics of beetroot slices dried in an innovative solar dryer without and with thermal storage unit
VR Mugi, MC Gilago, VP Chandramohan
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 45 … , 2023
2023
Citations: 10
Performance studies on indirect forced convection solar dryer without and with thermal energy storage during drying muskmelon slices: VR Mugi et al.
VR Mugi, MC Gilago, VP Chandramohan
Journal of Thermal Analysis and Calorimetry 148 (17), 9201-9216 , 2023
2023
Citations: 9
Thermal performance of indirect solar dryer and drying kinetics of guava without and with thermal energy storage
VR Mugi, MC Gilago, VP Chandramohan
International Journal of Environmental Science and Technology 20 (12), 13619 … , 2023
2023
Citations: 8

Vishnuvardhan Reddy

RESEARCH, TEACHING, or OTHER INTERESTS

Scopus Publications

RECENT SCHOLAR PUBLICATIONS

MOST CITED SCHOLAR PUBLICATIONS