SE—Structures and Environment: Improvement of Greenhouse Insulation with Restricted Transmission Loss through Zigzag Covering Material
✍ Scribed by G.L.A.M. Swinkels; P.J. Sonneveld; G.P.A. Bot
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 366 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0021-8634
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✦ Synopsis
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 satis"ed by the use of transparent double-layered zigzag plates as a covering material. The MatLight computer model was developed to compute the e!ect 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 253, was covered with a double zigzag plate. This greenhouse was proved to have a di!use transmission loss of 1)6% and a gain in transmitted direct radiation up to 5% in winter for NS-orientation, compared with a single-glass cover. The insulation of the cover increases by 16%. This is a promising result for practical application.