Photovoltaic herb greenhouse structure in severe-cold environment and design method

Abstract

The invention relates to the technical field of photovoltaic herb sheds, in particular to a photovoltaic herb greenhouse structure in a severe-cold environment and a design method. The invention aimsto provide a photovoltaic herb greenhouse in a severe-cold environment for solving the shortcomings in the prior art, by the photovoltaic herb greenhouse structure in a severe-cold region, efficient light transmitting and heat insulation can be finished according to the characteristic of severe cold of the Tibetan Plateau region of China, and the contradictory problem is solved. The design methodcomprises the following steps: establishing a three-dimensional spatial domain geometric model through three-dimensional modeling software UG, saving the three-dimensional spatial domain geometric model as a STP formatted file, and then guiding the three-dimensional spatial domain geometric model into grid partitioning software ICEM; carrying out grid partitioning by using a structured hexahedronas much as possible, partitioning a boundary layer network nearby an outer boundary of a photovoltaic shed, and setting corresponding boundary condition names, wherein y+ value of the height of a first layer of grids should be 1; and densifying the grids nearby electric heating wires of a space of the inner bottom of the shed, wherein grid size being 10-30 mm is required for partitioning.

Description

technical field [0001] The invention relates to the technical field of photovoltaic herb sheds, in particular to a structure and design method of a photovoltaic herb shed in an alpine environment. Background technique [0002] The application of existing photovoltaic herb sheds in alpine regions has the problem of long winter crop growth period and unsatisfactory heat preservation effect. However, the conventional solution to the heat preservation effect problem often sacrifices the light transmittance of the greenhouse, resulting in insufficient light for crops and requiring artificial light supplementation, which increases the The cost of greenhouse construction and the complexity of the planting process are not suitable for long-term, long-lasting, and stable crop growth, which restricts the promotion of photovoltaic agricultural greenhouses in alpine regions. Therefore, it is necessary to solve the problems of lighting and heat preservation in herb sheds in alpine environ...

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Problems solved by technology

[0002] The application of existing photovoltaic herb sheds in alpine regions has the problem of long winter crop growth period and unsatisfactory heat preservation effect. However, the conventional solution to the heat preservation effect problem often sacrifices the light transmittance of the greenhouse, resulting in insufficient light for crops and requiring artificial light supplementation, which increases the The construction cost of the greenhouse and the complexity of the planting process are not suitable for long-term, long-lasting and stable crop growth, which restricts the promotion of photovoltaic agricultural greenhouses in alpine areas. Therefore, it is necessary to solve the problems of lighting and heat preservation in herb sheds in alpine environments

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