Titre du document / Document title

Polymeric absorbers for flat-plate collectors : Can venting provide adequate overheat protection?

Auteur(s) / Author(s)

KEARNEY Meghan ⁽¹⁾ ; DAVIDSON Jane ⁽¹⁾ ; MANTELL Susan ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Department of Mechanical Engineering, 111 Church Street, S.E, Minneapolis, Minnesota 55455, ETATS-UNIS

Résumé / Abstract

Venting and evaporative cooling are modeled as possible techniques for protecting polymer absorbers in single-glazed, flat-plate solar collectors from exceeding the material temperature limit during dry stagnation. Four venting options are considered: (I) venting above the absorber plate, (II) venting below, (III) dual venting, and (IV) venting with evaporative cooling. Results indicate that in hot, sunny conditions, venting may not provide adequate cooling to lower the absorber temperature to the relative thermal index of the polymeric materials currently in use or under consideration for this application. Venting combined with evaporalive cooling from a wetted pad directly beneath the absorber plate is identified as a potential method of overheat protection in hot, dry climates.

Revue / Journal Title

Journal of solar energy engineering    ISSN  0199-6231   CODEN JSEEDO 

Source / Source

2005, vol. 127, n^o3, pp. 421-424 [4 page(s) (article)] (16 ref.)

Langue / Language

Anglais

Editeur / Publisher

American Society of Mechanical Engineers, New York, NY, ETATS-UNIS  (1980) (Revue)

Mots-clés anglais / English Keywords

Solar energy

;

Hot climate

;

Plate

;

Evaporative cooling

;

Flat plate collectors

;

Mots-clés français / French Keywords

Energie solaire

;

Climat chaud

;

Plaque

;

Refroidissement évaporation

;

Collecteur plaque plane

;

Mots-clés espagnols / Spanish Keywords

Energía solar

;

Clima caliente

;

Placa

;

Enfriamiento evaporación

;

Localisation / Location

INIST-CNRS, Cote INIST : 6120 N, 35400013239117.0160