Numerical investigation of parabolic trough receiver performance with outer vacuum shell

被引：48

作者：

Daniel, Premjit ^{[1
]}

Joshi, Yashavant ^{[1
]}

Das, Abhik K. ^{[1
]}

机构：

[1] SSN Res Ctr, Madras, Tamil Nadu, India

来源：

SOLAR ENERGY | 2011年 / 85卷 / 09期

关键词：

Parabolic trough receiver; One-dimensional empirical model; Thermal performance of heat loss; Outer vacuum shell;

D O I：

10.1016/j.solener.2011.04.032

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The useful heat gain of a parabolic collector system is directly dependent on the heat loss from the absorber at its operating temperature. Selective coatings with evacuated/non evacuated glass tubes are employed to control radiative and convective heat losses. A concentric glass shell under vacuum is investigated for its thermal performance as this method circumvents the need for direct sealing between the glass envelope and the metal receiver to maintain vacuum and its related technical challenges. The performance is compared against a non evacuated receiver and its influence under different wind velocities; emissivities are calculated by a one dimensional theoretical model and solved by an iterative method. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1910 / 1914

页数：5

共 7 条

[1]

Blake D., 2008, NRELTP51042468

[2]

Duffle JA., 2006, Solar engineering of thermal processes, V3rd

[3] Analysis of a new thermodynamic cycle for combined power and cooling using low and mid temperature solar collectors [J].

Goswami, DY ;

Xu, F .

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME, 1999, 121 (02) :91-97

[4]

GOSWAMI DY, 2000, PRINCIPLES SOLAR ENG, P113

[5]

Kennedy C.E., 2002, NRELTP5203126

[6]

Kennedy CE, 2005, P ISEC2005 2005 INT

[7]

SCHOTT AG, 2004, Patent No. 7240675

← 1 →