Heat loss factor for linear solar concentrators

S. C. Mullick and S. K. Nanda

Applied Energy, 1982, vol. 11, issue 1, 13 pages

Abstract: There is in existence no empirical equation for predicting the heat loss factor for a tubular absorber with a concentric glass cover, often employed as the target of a linear concentrator. A first attempt has been made to determine a solution for this geometry without the requirement of an iterative solution for the simultaneous equations. Our semi-empirical equation predicts the heat loss factor to within ±1·2 per cent of the value obtained by the actual solution of the simultaneous equations, in the range of variables--wind velocity, 0·5 m/s to 10·0 m/s, absorber temperature, 20°C to 200°C above ambient air temperature and emittance of the black coating, 0·1 to 0·95. The proposed correlation also takes into account property variations. Also included is a comparison of the correlations used for computing the individual heat transfer coefficients.

Date: 1982
References: Add references at CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/0306-2619(82)90044-7
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:11:y:1982:i:1:p:1-13

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/bibliographic
http://www.elsevier. ... 405891/bibliographic

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().