Review of Structural and Functional Characteristics of Greenhouses in European Union Countries, Part II: Typical Designs

Elsner, B.; Briassoulis, D.; Waaijenberg, D.; Mistriotis, Α.; Zabeltitz, Christian von; Gratraud, J.; Russo, Gìovanni Fulvio; Suay-Cortes, R.

doi:10.1006/jaer.1999.0512

Cited by 67 publications

(31 citation statements)

References 5 publications

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“…In this study, a three-span Venlo-peach-type ventilated greenhouse with a floor area of approximately 560 m 2 is used, as shown in Figure 3 [19]. This model is designed to withstand a wind speed of 30 m/s.…”

Section: Description Of Model and Analysis Conditionmentioning

confidence: 99%

Fatigue Analysis of Greenhouse Structure under Wind Load and Self-Weight

Hur

Kwon

2017

Applied Sciences

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Abstract:The design strength of a greenhouse structure is generally determined by analyzing strength after applying wind load using the wind pressure coefficient according to a design guide. Until now, the stability analysis for wind load has been performed through static structural analysis. However, a greenhouse is subjected to dynamic wind loads of various amplitudes, and it is reasonable to judge stability through fatigue analysis. For fatigue analysis, a stress-normalized model was constructed based on the square of wind speed, and the value obtained by squaring wind speed was used as dynamic load time data. Life cycle was calculated under stress generated by self-weight by compensating fatigue estimation stress. Furthermore, the effect of self-weight was examined and errors of up to 21% were obtained depending on the configuration of the stress-normalized model. When self-weight and wind speed were applied simultaneously, the effect of self-weight reduced when the stress-normalized model was used at high wind speed. Therefore, it is appropriate that the fatigue analysis is based on the fatigue stress model normalized by the square of wind speed, fatigue estimation stress is corrected to the static stress due to self-weight, and the square of wind speed is used as the dynamic load.

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Section: Description Of Model and Analysis Conditionmentioning

confidence: 99%

Fatigue Analysis of Greenhouse Structure under Wind Load and Self-Weight

Hur

Kwon

2017

Applied Sciences

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“…Consequently, greenhouse control systems could actually directly utilize more detailed knowledge of the crop growth process and result in almost instantaneous increase in both yield and productivity. However greenhouses are not one application, they vary size and architecture, geographical location, type of crops being grown, many more [41,42]. All these factors may influence both the performance and the architecture (therefore cost) of the network.…”

Section: Background and Motivationmentioning

confidence: 99%

“…As mentioned before, greenhouses are not uniform structures [42] and as such do not provide uniform conditions for the radio signal propagation. One of the low-level decisions that a designer of a WSN has to make is what ISM band his network is going to operate within.…”

Section: In Greenhouse Radio Communicationmentioning

confidence: 99%

The Landscape of Wireless Sensing in Greenhouse Monitoring and Control

Berezowski¹

2012

IJWMN

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“…Structure and Standard. Greenhouse structures differ a lot from simple and very cheap structures to high-tech multispan-structures (Elsner et al, 2000b). The reasons for the large variety of greenhouse types in the world are mostly local conditions and the availability of building materials like timber, bamboo or steel.…”

Section: Light In Greenhousesmentioning

confidence: 99%

Design, Construction and Maintenance of Greenhouse Structures

Waaijenberg¹

2006

Acta Hortic.

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In this paper a review is given about the effects of different parts of the solar radiation and its importance for plant growth in greenhouses. Besides the most important visible part of the light (PAR), ultraviolet (UV), near infrared (NIR) and far infrared (FIR) are discussed. The strength of the greenhouse structure can be calculated following the new European Standard for Greenhouses EN 13031-1. The orientation and the roof inclination at the greenhouse have limited influence on the light transmittance. The most important material properties of greenhouse cladding materials are presented for glass, plastic sheets (PMMA and PC) and plastic films (PE, PVC and ETFE). These properties can be modified in the different materials, which leads to improvements of the materials with respect to light transmission, heat transfer, condensation behaviour, etc. Some recent results of research of greenhouse cladding materials and structures are described, like 'floating greenhouses', 'closed greenhouses', ETFE membrane, a greenhouse for tropical lowland, zigzag-shape double PC-sheet and microstructural coated glass.

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Review of Structural and Functional Characteristics of Greenhouses in European Union Countries, Part II: Typical Designs

Cited by 67 publications

References 5 publications

Fatigue Analysis of Greenhouse Structure under Wind Load and Self-Weight

Fatigue Analysis of Greenhouse Structure under Wind Load and Self-Weight

The Landscape of Wireless Sensing in Greenhouse Monitoring and Control

Design, Construction and Maintenance of Greenhouse Structures

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