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Updated: Feb 18, 2026

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface
Published on: June 8, 2015
Effect of mass on convective heat transfer coefficient during open sun drying of groundnut
Ravinder Kumar Sahdev1, Mahesh Kumar2, Ashwani Kumar Dhingra1
1Department of Mechanical Engineering, University Institute of Engineering and Technology, Maharshi Dayanand University, Rohtak, 124001 India.
Abstract:
In this work, an attempt is made to study the effect of mass on convective heat transfer coefficient (CHTC) for open sun drying (OSD) of groundnut (Arachis hypogaea L.). Experiments were conducted during the month of May, 2016 in the climatic condition of Rohtak, India (28°54'0″N 76°34'0″E). Groundnut samples of 130 and 198 g were dried under OSD condition till almost no variation in its mass was recorded. Hourly data of the mass evaporated, groundnut temperature, relative humidity and ambient temperature were recorded. The experimental data obtained were used to determine the constants 'C' and 'n' in the Nusselt number expression using linear regression method. CHTC increased with the increase in mass of groundnuts. The experimental errors in terms of percent uncertainty were found to vary from 44.29 to 48.77%.
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