Data/hora: 11/06/2024 04:00:43

Provedor de dados: | 111
País: | China
Título: | Experimental free convection thin layer groundnut greenhouse drying
Autores: | Kumar, Mahesh; Sahdev, Ravinder Kumar; Tiwari, Sumit; Panchal, Hitesh; Manchanda, Himanshu.
Data: | 2019-10-10
Ano: | 2019
Palavras-chave: | Groundnut/peanut; Greenhouse drying; Convective heat transfer coefficient; Evaporative heat transfer coefficient; Free convection.
Resumo: | The groundnuts were dried inside an even span roof type free convection greenhouse dryer with a useful floor area of 1.2×0.8 m2 in the environmental conditions of Rohtak, India (28o54’ N 76o34’E). Wire mesh sieves of sizes 0.15×0.25 m2, 0.25×0.4 m2,and 0.35×0.6 m2 were used to accommodate thin layer samples of groundnuts. The groundnuts were dried till the optimum safe moisture storage level (8–10%) was attained. Based on experimental (hourly) observations the values of constants (C and n) in the equation of Nusselt number were evaluated. The values of convective and evaporative heat transfer coefficients were calculated which were observed to decrease with the increase in the sieve size. The overall average greenhouse thermal, energy, and exergy efficiencies were evaluated as 8.83, 22.67, and 2.75% respectively. The overall average experimental error in terms of % uncertainty for groundnuts drying was evaluated as 37.94%.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.cigrjournal.org/index.php/Ejounral/article/view/5325
Editor: | International Commission of Agricultural and Biosystems Engineering

Relação:

http://www.cigrjournal.org/index.php/Ejounral/article/view/5325/3121

http://www.cigrjournal.org/index.php/Ejounral/article/downloadSuppFile/5325/2366

Formato: | application/pdf

Fonte:

Agricultural Engineering International: CIGR Journal; Vol 21, No 3 (2019): CIGR Journal; 203-211

1682-1130

Fonte: | Copyright (c) 2019 Agricultural Engineering International: CIGR Journal