Improvement of greenhouse insulation with restricted transmission loss through zigzag covering material

G.L.A.M. Swinkels, P.J. Sonneveld, G.P.A. Bot

Research output: Contribution to journalArticleAcademicpeer-review

32 Citations (Scopus)

Abstract

The design of modern greenhouses is based on a compromise between a maximized transmission of solar radiation and a minimized heat loss within an economic context. This could be satisfied by the use of transparent double-layered zigzag plates as a covering material. The MatLight computer model was developed to compute the effect on transmission of a greenhouse cover due to the use of these plates. A greenhouse cover without construction elements such as gutters and glazing bars, with a span width of 3?2 m and a roof slope of 25°, was covered with a double zigzag plate. This greenhouse was proved to have a diffuse transmission loss of 1?6 nd a gain in transmitted direct radiation up to 5 n winter for NS-orientation, compared with a single-glass cover. The insulation of the cover increases by 16&Eth;This is a promising result for practical application.
Original languageEnglish
Pages (from-to)91-97
JournalJournal of Agricultural Engineering Research
Volume79
Issue number1
DOIs
Publication statusPublished - 2001

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