研究目的
To illustrate that available greenhouses can be optimized to achieve a sustainable production in terms of cost, quality of product, and environmental impact.
研究成果
The study demonstrates that integrating a solar photovoltaic blind system (SPBS) into a greenhouse can significantly reduce energy consumption and CO2 emissions without adversely affecting plant growth. Specifically, covering 19.2% of the roof with SPBS reduces natural gas consumption by 3.57%, electricity demand by 45.5%, and CO2 emission by 30.56 kg/m2 annually. The SPBS also generates approximately 42.7 kWh/m2 of electricity annually.
研究不足
The study focuses on a specific type of greenhouse (rose greenhouse) and location (Shiraz, Iran), which may limit the generalizability of the findings to other types of greenhouses or locations. The SPBS's effectiveness may vary under different climatic conditions or with different crops.
1:Experimental Design and Method Selection:
A commercial rose greenhouse in Shiraz, Iran, was modeled using the dynamic energy modeling tool EnergyPlus, with heating, cooling, and humidifier equipment and validated experimental data. The SPBS, mounted above the greenhouse and rotated on its longitudinal axis, was simulated and applied to the modeled greenhouse.
2:Sample Selection and Data Sources:
The greenhouse is a flat-arch type with an area of 4081 m2, modeled in the OpenStudio SketchUp Plug-in.
3:List of Experimental Equipment and Materials:
The greenhouse was clad with a 180 μm ultraviolet polyethylene film. Equipment includes boilers, pumps, a fan–pad system, and a fog system.
4:Experimental Procedures and Operational Workflow:
The energy balance and parameters involved in the greenhouse energy interchange were calculated. The monthly electricity production, reduction of electricity, natural gas demand, and CO2 emission were assessed.
5:Data Analysis Methods:
The effects of various parameters, including temperature, relative humidity, natural gas consumption, electricity consumption, and CO2 emission reduction, were studied.
独家科研数据包,助您复现前沿成果,加速创新突破
获取完整内容