PHYSICAL AND THERMAL-PROPERTIES OF MALT

被引：15

作者：

BALA, BK

WOODS, JL

机构：

[1] Department of Farm Power & Machinery, Bangladesh Agricultural University, Mymensingh

[2] Department of Agricultural & Environmental Sciences, University of Newcastle Upon Tyne

来源：

DRYING TECHNOLOGY | 1991年 / 9卷 / 04期

关键词：

Heat Transfer - Mass Transfer - Specific Heat;

D O I：

10.1080/07373939108916735

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The properties of physical dimensions, 1000 grain weight, bulk density and dry bulk density were determined experimentally and each of these properties except bulk density was found to be linearly dependent on moisture content. Specific heat was also determined experimentally and also found to be linearly dependent on moisture content. Six EMC models were developed to describe the desorption isotherms of malt. The modified Chung Pfost model appeared to describe the isotherms quite accurately upto 82% rh. Two models were developed for the latent heat of vaporization of malt and both the models are in good agreement with the values computed by the method proposed by Gallaher.

引用

页码：1091 / 1104

页数：14

共 15 条

[1]

Bala B.K., Deep bed drying of malt, (1983)

[2]

Broker D.B., Bakker-Arkema F.W., Hall C.W., Drying of Cereal Grains, (1974)

[3]

Chung D.S., Pfost H.B., Adsorption and desorption of water vapour by cereal grains and their products. Part II, Development of general isotherm equation. Trans. of ASAE, 10, 4, pp. 552-555, (1967)

[4]

Day D.L., Nelson G.L., Desorption isotherms of wheat, Trans. of ASAE, 8, 2, pp. 293-297, (1965)

[5]

Gallaher G.L., A method of determining the latent heat of agricultural crops, Agricultural Engineering, 34, (1951)

[6]

Henderson S.M., A basic concept of equilibrium moisture, Agric. Engg, pp. 29-32, (1952)

[7]

Johnston J.H.S., Physical factors affecting kilning of barley and malt, Journal of Institute of Brewing, 60, pp. 318-340, (1954)

[8]

Matouk A.M., Heat and moisture movements during low temperature drying and storage of maze grain, (1976)

[9]

Muir W.E., viravanichai S., Specific heat of wheat, Journal of Agricultural Engineering Research, 17, pp. 338-342, (1972)

[10]

Nellist M.E., The drying of ryegrass seeds in deep layers, (1974)

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