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首页> 外文期刊>Indian journal of power and river valley development >Solar-aided coal-fired hybrid power: a model under consideration
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Solar-aided coal-fired hybrid power: a model under consideration

机译：太阳能辅助燃煤混合动力：正在考虑的模型

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Solar-aided coal-fired power generation is a promising technique to reduce cost and enhance the efficiency of concentrated solar power. Operation optimization is important but has difficulty in improving the performance of solar-aided coal-fired power plants, due to the fluctuations in power load and solar energy. Solar-aided coal-fired power plants (SCPPs) are attractive for the countries whose coal power dominates the power sector. Many studies have been conducted on the analyses and design optimizations of SCPP. Solar energy can be concentrated by trough solar energy collectors and tower solar collectors; then, the collected solar thermal energy is used in coal-fired power plants (CPPs). The performance of SCPP is influenced by power station capacities and solar field sizes. Steam extraction positions and power plant types also influence the energy and economic benefits of SCPP. Energy, exergy, environmental, and economic analyses on SCPP show approximately 14%-19% coal can be saved in the "fuel conservation mode", but the SCPP is only slightly cost effective on the basis of the cost of saved fuel. The SCPP is composed of a CPP and a trough collector system(TCS) as the solar branch. The figure shows the integration of TCS into CPP. The heaters of regenerative system work in parallel with TCS to preheat boiler feed water. Part of the water is extracted from the inlet of a regenerative heater, preheated by the solar branch, and sent back to the water outlet of the heater either the same or in a higher place of the heater serial.
机译：太阳能辅助燃煤发电是一种有希望的技术，可降低成本，增强集中的太阳能效率。操作优化是重要的，但由于电力负荷和太阳能波动，难以提高太阳能辅助燃煤发电厂的性能。太阳能辅助燃煤发电厂（SCPPS）对煤炭占主导地位的国家具有吸引力。已经对SCPP的分析和设计优化进行了许多研究。太阳能可以集中通过低温太阳能收集器和塔太阳能集热器;然后，采集的太阳能热能用于燃煤发电厂（CPP）。 SCPP的性能受到电站容量和太阳能场尺寸的影响。蒸汽提取位置和发电厂类型也影响了SCPP的能源和经济效益。 SCPP的能源，高度，环境和经济分析显示，大约14％-19％的煤炭可以保存在“燃料节省模式”中保存，但SCPP仅在保存燃料的成本的基础上略有效益。 SCPP由CPP和Trough收集器系统（TCS）组成，作为太阳能分支。该图显示了TCS进入CPP的集成。再生系统的加热器与TCS平行工作，以预热锅炉给水。部分水从再生加热器的入口中提取，由太阳能分支预热，并送回加热器的水出口相同或在加热器连续的更高位置。

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