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首页> 外文期刊>South African Journal of Geology: Being the Transaction of the Geological Society of South African: Syndie die Verhandelinge van die Geologiese Vereniging van Suid-Afrika >Development and performance investigation of a novel solar chimney power generation system
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Development and performance investigation of a novel solar chimney power generation system

机译：新型太阳能烟囱发电系统的发展与绩效调查

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摘要

South Africa has limited reserve electricity resources and many parts of the country have limited access to electricity. Predictions suggest South Africa will have a serious electricity allocation problem in the very near future, and current rolling blackouts in many of our cities can attest to the looming problem. The energy crisis in South Africa has highlighted the need to increase electricity generation capacity and to search for alternative energy sources. Solar chimney plants could form part of the solution in the near future in South Africa to create additional power. Solar radiation energy is abundant in South Africa, while wind sources are limited mainly to coastal regions. Presently, wind turbine technology is more efficient than solar voltaic cells. This study develops a wind generation system in areas where wind is absent. A solar chimney power plant is expected to provide remote areas in South Africa with electric power, or complement the current electricity grid. Solar energy and the psychometric state of the air are important to encourage the full development of a solar chimney power plant for the thermal and electrical production of energy for various uses. A solar chimney power plant consists of a greenhouse roof collector, and the chimney is located at the centre. The chimney is used to direct and vent the low density air through a wind turbine which in turn converts the air enthalpy into mechanical energy. The main advantage of a solar chimney system lies in its low maintenance cost, the simplicity to operate and the durability of the system. Research of a design within the South African context and particularly on increasing the effectiveness of the solar chimney power plant technology is lacking. Several simulations were performed to find the optimum design configuration to focus the research. The results from the simulations were used to design the best configuration for a pilot plant.
机译：南非有限的储备电力资源，该国许多地区获得电力有限。预测建议南非在不久的将来会有严重的电力分配问题，我们许多城市的当前滚动停电可以证明迫在眉睫的问题。南非的能源危机强调了增加发电能力和寻求替代能源的必要性。太阳能烟囱植物可以在南非不久的将来形成解决方案的一部分，以创造额外的力量。太阳辐射能量在南非丰富，而风力源主要限于沿海地区。目前，风力涡轮机技术比太阳能伏特电池更有效。本研究在风中不存在的区域开发风发射系统。太阳能烟囱发电厂预计将在南非提供电力的偏远地区，或者补充电流电网。太阳能和空气的心理测量状态对于鼓励太阳能烟囱发电厂的全面开发来进行各种用途的热量和电气生产。太阳能烟囱发电厂包括温室车顶收集器，烟囱位于中心。烟囱用于通过风力涡轮机引导和排出低密度空气，这反过来将空气焓转化为机械能。太阳烟囱系统的主要优点在于其低维护成本，操作简单，以及系统的耐用性。缺乏南非语境内的设计研究，特别是提高太阳烟囱发电厂技术的有效性。进行了几种模拟以找到专注于研究的最佳设计配置。模拟结果用于设计飞行员的最佳配置。

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