Greenhouses based on the usage of solar energy are separated in to systems: active (use separate collector for harnessing energy) and passive. In passive system, the greenhouse considered as a collector and its structural design plays an important role on absorbing the sun energy.
Due to transparent nature of the greenhouse cover, solar radiation has a significant impact on the indoor greenhouse specifications. The rate of gaining solar radiation depends upon the greenhouse physical structure and the greenhouse cultivated land area (floor area).
Our findings show that solar greenhouses should be designed regarding the local climate condition. For instance, the optimal solar greenhouse has the passive performance of 85% for the case study. This justified the application of optimization techniques for the optimal design of solar greenhouses.
Depending on the local climate and the bioclimatic requirements of the species to be cultivated, once the proper site has been selected, it will be necessary to choose the cladding material, the type of structure and the architectonic shape of the greenhouse.
The solar energy stored in the greenhouse’s soil can be used to decrease the required energy in harsh cold weather in winter. When the temperature of the inside air is maintained at higher than 12 °C throughout the year, the energy saving under Shanghai climatic condition was 27.8 kWh/ (m 2 ·year).
Depending on the type of greenhouse and climate conditions it is advisable that the ventilation area is up to 30% of the ground area of the greenhouse. The increasing use of insect-proof screens in the vents, to avoid or limit the entrance of insects, decreases the efficiency of ventilation. Collection of rainfall water must also be a priority.
A microenvironment prediction model for Chinese solar greenhouses …
To improve the prediction accuracy of temperature and humidity in typical Chinese solar greenhouses, this paper proposed a new longwave/shortwave radiation modeling method using bond graph. This model takes into account sun position, useful incoming solar radiation model, sky longwave radiation model, inside longwave, and shortwave radiation …
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A systematic analysis of multiple structural parameters of Chinese ...
DOI: 10.1016/j.energy.2023.127193 Corpus ID: 257564416; A systematic analysis of multiple structural parameters of Chinese solar greenhouse based on the thermal performance @article{Wu2023ASA, title={A systematic analysis of multiple structural parameters of Chinese solar greenhouse based on the thermal performance}, author={Xiaoyang Wu and Yiming Li …
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Optimal Solar Greenhouses Design Using Multiobjective Genetic …
Three common types of greenhouses, including even-span, modified arch and Quonset types, are considered. Three-floor area sizes are investigated for each shape to find the optimal physical parameters based on each greenhouse size.
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Optimal Design for Solar Greenhouses Based on Climate Conditions
Sustainable greenhouse design can be used to optimize greenhouse productivity and energy consumption efficiency with the appropriate combination of strategies, technologies, and systems to meet...
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Review on greenhouse microclimate and application: Design parameters ...
Key design parameters that are used to characterize the overall performance of greenhouse systems, such as cladding materials, shape, orientation, and thermal modeling, will be carefully analyzed in the coming sections. The review is organized as follows. Radiometric properties and mechanical characteristics of the greenhouse ...
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Optimal Design for Solar Greenhouses Based on Climate Conditions
Sustainable greenhouse design can be used to optimize greenhouse productivity and energy consumption efficiency with the appropriate combination of strategies, …
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Review on greenhouse microclimate and application: Design …
Key design parameters that are used to characterize the overall performance of greenhouse systems, such as cladding materials, shape, orientation, and thermal modeling, …
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A review study on the design and control of optimised …
Greenhouses are inflated structures with transparent covering that are used to grow crops under controlled climatic conditions. Crops are protected from extreme climate-related events by being enclosed. Furthermore, the …
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Optimal design for solar greenhouses based on climate conditions
The considered structural parameters of solar greenhouse system are shown in Fig. 5. ... In order to achieve the optimum design of solar greenhouse, an optimization procedure was integrated into the heat transfer model. Our findings show that solar greenhouses should be designed regarding the local climate condition. For instance, the optimal solar greenhouse has …
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Review on greenhouse microclimate and application: Design parameters ...
Review on greenhouse microclimate and application: Design parameters, thermal modeling and simulation, climate controlling technologies October 2019 Solar Energy 191:109-137
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A review study on the design and control of optimised greenhouse ...
Greenhouses are inflated structures with transparent covering that are used to grow crops under controlled climatic conditions. Crops are protected from extreme climate-related events by being enclosed. Furthermore, the greenhouse design ratio impacts the temperature and humidity distribution profile uniformity as well as the greenhouse.
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Design, technology, and management of greenhouse: A review
Solar greenhouses increase crop yield and quality, addressing global food security concerns. This paper presents an overview of current design trends in construction, current development ...
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Determining the optimum span of a solar greenhouse
Taking the calculation results into account, this research provides a comprehensive analysis of the impact of outdoor air temperature, solar radiation, north wall height, heat storage capacity, and soil temperature inside the greenhouse on the thermal environment when the span is altered.
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Optimal Solar Greenhouses Design Using Multiobjective Genetic …
Three common types of greenhouses, including even-span, modified arch and Quonset types, are considered. Three-floor area sizes are investigated for each shape to find …
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Optimal design for solar greenhouses based on canopy height
In order to make full use of solar radiation resources in winter to assist greenhouse production [6, 7], numerous scholars have optimized the structural parameters of solar greenhouses to improve their daylighting, heat storage and thermal insulation capacity based on the construction characteristics of "front roof for daylighting, rear slope for insulation …
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Determining the optimum span of a solar greenhouse
This study enhances the design and calculation methods for optimal space form characteristic parameters of solar greenhouses. Furthermore, it offers an analytical method …
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Optimum design of a greenhouse for efficient use of solar …
Greenhouses based on the usage of solar energy are separated in to systems: active (use separate collector for harnessing energy) and passive. In passive system, the greenhouse considered as a collector and its structural design plays an important role on absorbing the sun energy.
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Lesson 5 Criteria for Design and Construction of …
Likewise, as a general rule, the greenhouse must maximize solar radiation transmission, at least in winter (when it is lower), for which proper roof geometry and orientation are fundamental. Fig 5.2.1 Some common type of curved roof …
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Determining the optimum span of a solar greenhouse
This study enhances the design and calculation methods for optimal space form characteristic parameters of solar greenhouses. Furthermore, it offers an analytical method reference for the optimal design of solar greenhouses, efficient construction of thermal environments, and intelligent management and control.
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Optimal design for solar greenhouses based on climate conditions
The primary purpose of a solar greenhouse optimization procedure is the selection of greenhouse structural parameters to achieve the best thermal performance. The objective function can be the minimization of auxiliary energy demand, minimization of energy cost or investment cost, or minimization of temperature deviation from suitable ...
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Lesson 5 Criteria for Design and Construction of …
Greenhouse design is very much influenced, in practice, by the local climate and the latitude of the site, and in many cases is limited by the availability of materials for the construction. No design is perfect, thus it is necessary to prioritize in …
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