Module greenhouse with high efficiency of transformation of solar energy, utilizing active and passive glass optical rasters

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Solar Energy

DOI:https://doi.org/10.1016/J.SOLENER.2010.07.004· OSTI ID:21350410

Korecko, J; Jirka, V ^[1]; Sourek, B ^[1]; Cerveny, J ^[1]

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1. ENKI, o.p.s., Dukelska 145, 379 01 Trebon (Czech Republic)

Since the eighties of the 20th century, various types of linear glass rasters for architectural usage have been developed in the Czech Republic made by the continuous melting technology. The development was focused on two main groups of rasters - active rasters with linear Fresnel lenses in fixed installation and with movable photo-thermal and/or photo-thermal/photo-voltaic absorbers. The second group are passive rasters based on total reflection of rays on an optical prism. During the last years we have been working on their standardization, exact measuring of their optical and thermal-technical characteristics and on creation of a final product that could be applied in solar architecture. With the project supported by the Ministry of Environment of the Czech Republic we were able to build an experimental greenhouse using these active and passive optical glass rasters. The project followed the growing number of technical objectives. The concept of the greenhouse consisted of interdependence construction - structural design of the greenhouse with its technological equipment securing the required temperature and humidity conditions in the interior of the greenhouse. This article aims to show the merits of the proposed scheme and presents the results of the mathematical model in the TRNSYS environment through which we could predict the future energy balance carried out similar works, thus optimizing the investment and operating costs. In this article description of various technology applications for passive and active utilization of solar radiation is presented, as well as some results of short-term and long-term experiments, including evaluation of 1-year operation of the greenhouse from the energy and interior temperature viewpoints. A comparison of the calculated energy flows in the greenhouse to real measured values, for verification of the installed model is also involved. (author)

• OSTI ID: 21350410
• Journal Information: Solar Energy, Vol. 84, Issue 10; Other Information: Elsevier Ltd. All rights reserved; ISSN 0038-092X
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
GREENHOUSES
SOLAR ENERGY
COMPARATIVE EVALUATIONS
FRESNEL LENS
GLASS
SOLAR ARCHITECTURE
SOLAR RADIATION
OPERATING COST
EFFICIENCY
TRANSFORMATIONS
ENERGY BALANCE
MATHEMATICAL MODELS
CONSTRUCTION
DESIGN
ENERGY CONSUMPTION
INVESTMENT
OPERATION
OPTIMIZATION
PRISMS
REFLECTION
COMPUTERIZED SIMULATION
STANDARDIZATION
VERIFICATION
Rasters