Performance analysis of a parabolic trough solar collector with a porous absorber receiver

Eric W. Grald, Thomas H. Kuehn

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The thermal performance of a parabolic trough solar collector with an innovative porous absorber receiver is investigated. A one-dimensional finite-difference computer program is used to compute steady-state fluid velocity and transient temperature distributions along the line of vertical symmetry near the midpoint of the collector. Parametric studies are conducted to determine the influence of mass flow rate, acceptance angle, receiver dimensions, and material properties on the thermal efficiency. Numerical results for thermal efficiency show the potential for marked improvement over commercially available parabolic trough collectors for a wide range of fluid outlet temperatures.

Original languageEnglish (US)
Pages (from-to)281-292
Number of pages12
JournalSolar Energy
Volume42
Issue number4
DOIs
StatePublished - 1989

Bibliographical note

Funding Information:
Acknowledgment--Support for this work was provided by the U.S. Department of Energy under contract DE-ACO3-82SF11937.

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