The enhancement of spray cooling at very high initial temperature by using dextrose added water

被引：17

作者：

Das, L. ^{[1
]}

Pati, A. R. ^{[1
]}

Panda, Anita ^{[1
]}

Munshi, B. ^{[1
]}

Sahoo, D. K. ^{[2
]}

Barik, K. ^{[3
]}

Mohapatra, S. S. ^{[1
]}

Sahoo, A. ^{[1
]}

机构：

[1] Natl Inst Technol Rourkela, Dept Chem Engn, Rourkela 769008, India

[2] Natl Inst Technol Rourkela, Dept Met & Mat Engn, Rourkela 769008, India

[3] Indira Gandhi Inst Technol, Dept Chem Engn, Sarang 759146, India

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2020年 / 150卷

关键词：

Dextrose; Exothermic; Dissolution; Morphology; HEAT REMOVAL RATE; STEEL PLATE; FLUX; ADDITIVES;

D O I：

10.1016/j.ijheatmasstransfer.2020.119311

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In the current work, by decreasing the sensible heat extraction period and enhancing the internal energy of the evaporating droplet; the high mass flux spray cooling is enhanced with the additional advantages such as attainment of unaltered surface morphology and zero deposition of the additives on the evaporating surface. To achieve the above-mentioned requirements, dextrose is used as an additive in water, which decreases coolant temperature due to heat of dissolution. Furthermore, the exothermic reaction between aqueous glucose and oxygen fulfill the latter requirement. In the current work, the heat transfer analysis clearly depicts enhancement with respect to the heat removal rate obtained in case of cooling by pure water. In addition to the above, the post quenching surface analysis of the heat-treated steel plate assures unaltered surface morphology. The comparison of the current quenching process with the cooling processes reported in the literature clearly asserts its suitability for the fast quenching operation. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：8

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