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首页> 外文期刊>International Journal of Soil, Sediment and Water >Off-Grid Photovoltaic System in a Temperate Climate Greenhouse in Virginia
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Off-Grid Photovoltaic System in a Temperate Climate Greenhouse in Virginia

机译：弗吉尼亚温带气候温室中的离网光伏系统

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Most buildings require power produced by fossil fuels, the extraction and consumption of which contaminate our environment. The Virginia Center of Basic and Applied Science (CBAS, INC) constructed a building in a remote forested area as a plant and fish nursery (and living space for staff) to be operated by solar electrical power. Comfortable summer interior temperature is facilitated by an open design, 15,000 cubic foot interior, ceiling fans, many large windows and doors, with a large sun-screen eave off the 1000 square foot south-facing roof. Comfortable winter temperature is possible because the building has no tree-shade, thick well-insulated walls and roof, a low number of air changes per hour, and when necessary the surrounding forest provides wood stove heat. The energy challenge of the research was to develop a system facilitating 24-hour and year-round use (primarily for lights, fans, pumps, heaters and staff living requirements) that did not need to be connected to the local electrical utility company. On average, the facility uses 3-4 kilowatt hours per day. The solar power is captured by 8 solar panels which charge a bank of deep-cycle batteries, which in turn generate the power for the facility. The complete system (solar panels, charge controller, batteries, DC-to-AC inverter, 110-to-220 transformer) cost about $10,000, about 5% of the total facility cost.
机译：大多数建筑物都需要使用化石燃料来发电，而化石燃料的提取和消耗会污染我们的环境。弗吉尼亚基础和应用科学中心（CBAS，INC）在一个偏远的森林地区建造了一座建筑物，作为植物和鱼类苗圃（以及员工的生活空间），将通过太阳能进行操作。开放式设计，15,000立方英尺的内饰，吊扇，许多大型门窗以及在1000平方英尺朝南的屋顶上均设有大型遮阳帘的功能，可为夏季提供舒适的室内温度。由于该建筑没有树荫，没有隔热材料的厚壁和屋顶，每小时换气次数少，并且在必要时周围的森林提供了柴炉热量，因此可以实现舒适的冬季温度。该研究面临的能源挑战是开发一种无需与当地电力公司连接即可方便全年24小时使用的系统（主要用于照明，风扇，水泵，加热器和员工生活需求）。该设施平均每天使用3-4千瓦时。太阳能是由8个太阳能电池板捕获的，这些电池板为一组深循环电池充电，这些电池又为该设施发电。整套系统（太阳能电池板，充电控制器，电池，DC-AC逆变器，110-220变压器）的成本约为10,000美元，约占设备总成本的5％。

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