publication . Article . 1984

Influence d'un ecran thermique sur le bilan energetique et le microclimat nocturnes d'une serre

BAILLE, Maria; LAURY, Jean-Claude; BAILLE, Alain; SAPPE, Gilbert;
Open Access French
  • Published: 01 Jan 1984
  • Country: Morocco
Abstract
In this paper, experimental results are presented on the influence of a thermal screen (acryl-polypropylene) on energy losses from two identical glasshouses with different cover material : standard glass (V.O.) and low emissivity glass (V.F.E.). With the screen, a significant decrease in total thermal losses was observed. This type of screen was very efficient in reducing convective losses (by 50 % or more), but less efficient for radiative losses, particularly in the case of low emissivity glass. At night, no significant differences were observed in plant temperatures between the two types of glasshouse with screen, while differences up to 2 °C were observed be...
Subjects
free text keywords: Sciences agricoles, Agricultural sciences, serre, culture protegée, bilan énergétique, écran thermique, microclimat, température de l'air, rayonnement atmosphérique, [SDV.SA]Life Sciences [q-bio]/Agricultural sciences, [SDV.EE]Life Sciences [q-bio]/Ecology, environment
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- à la localisation des échangeurs dans la serre A(,ODKA 1980),

- à l'étanchéité de l'ensemble serre-écran, une fois que l'écran est mis en place (Von ArTZ,SElZL' 1976), - au climat local, qui agit sur la répartition entre pertes par rayonnement et pertes par convection et fuites A(IPACLE Het al., 1980).

Von Zabeltitz, 1976. Measurements on heat loss from glasshouses with different double shelters. Séminaire ISHSICEE, Karlsruhe 1976, 62-65.

Winspear K. W., Bailey B. J., 1978. Thermal screens for greenhouse energy effectiveness. Acta Hortic., 87, 111-118.

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publication . Article . 1984

Influence d'un ecran thermique sur le bilan energetique et le microclimat nocturnes d'une serre

BAILLE, Maria; LAURY, Jean-Claude; BAILLE, Alain; SAPPE, Gilbert;