太陽(yáng)能光熱資料匯總(英文版)-wenkub
2023-03-04 12:16:17 本頁(yè)面
【正文】 ral collectorstorage passive system ? Thermosyphon system A thermosyphon system A thermosyphon system, also known as a passive system, does not require a pump to circulate the water but instead relies on density differentials where the warmer water rises to the highest point. For this system to function the tank must be mounted above the collector, relative to the horizontal. Comparison between Active and Passive heating systems Advantage of Active over Passive (Thermosyphon） Advantage of Passive (Thermosyphon) over Active Greater control over system Simple System setup Superior efficiency More Cost Effective Flexibility in positioning of storage tank Operates without power Easier to overe freezing Can be used with both low pressure and high pressure systems The Main Factors that govern the choice of types of system to be installed include the climatic condition, hot water demand, size of the system and space availability for placing extra ponents, etc. For example, low maintenance direct system can be used in smaller facilities with low hot water demand whereas active indirect system is usually installed in larger facilities with higher hot water demand. Maintenance and Expected Life The maintenance requirements for solar water heating system vary depending on the system configuration. In general, solar thermal collectors have no moving parts and the maintenance requirements are very low. A wellmade, properly maintained system should last 15 to 20 years or more. Issues to be considered when installing solar water heating system Solar Collectors Orientation Solar collectors needed to be located where plenty of sunshine strikes its surface. Solar collectors can be mounted from horizontal to an inclined angle. To maximize the amount of annual solar energy that solar collectors can receive, they should be ideally tilted at latitude ( around 37186。How Solar Heating System Works??? ? A solar water heat
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號(hào)-1