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首页> 外文期刊>Thermal engineering >Combined Cycle Power Unit with a Binary System Based on Waste Geothermal Brine at Mutnovsk Geothermal Power Plant
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Combined Cycle Power Unit with a Binary System Based on Waste Geothermal Brine at Mutnovsk Geothermal Power Plant

机译：Mutnovsk地热发电厂基于废地热卤水的二元联合循环发电机组

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摘要

The Russian geothermal power systems developed in the last few decades outperform their counterparts around the world in many respects. However, all Russian geothermal power stations employ steam as the geothermal fluid and discard the accompanying geothermal brine. In reality, the power of the existing Russian geothermal power stations may be increased without drilling more wells, if the waste brine is employed in combined cycle systems with steam and binary turbine units. For the example of the 50 MW Mutnovsk geothermal power plant, the optimal combined cycle power unit based on the waste geothermal brine is considered. It is of great interest to determine how the thermodynamic parameters of the secondary steam in the expansion unit and the pressure in the condenser affect the performance of the equipment in the combined cycle power unit at Mutnovsk geothermal power plant. For the utilization of the waste geothermal brine at Mutnovsk geothermal power plant, the optimal air temperature in the condensers of the combined cycle power unit is +5℃. The use of secondary steam obtained by flashing of the geothermal brine at Mutnovsk geothermal power plant 1 at a pressure of 0.2 MPa permits the generation of up to 8 MW of electric power in steam turbines and additional power of 5 MW in the turbines of the binary cycle.
机译：在过去的几十年中，俄罗斯开发的地热发电系统在许多方面都优于世界各地的同类系统。但是，俄罗斯所有的地热发电厂都将蒸汽用作地热流体，并丢弃伴随的地热盐水。实际上，如果将废盐水用于带有蒸汽和二元涡轮机的联合循环系统中，则可以增加俄罗斯现有地热发电站的功率，而无需钻更多的井。以50兆瓦Mutnovsk地热发电厂为例，考虑了基于废地热盐水的最佳联合循环发电装置。确定膨胀单元中二次蒸汽的热力学参数和冷凝器中的压力如何影响Mutnovsk地热发电厂的联合循环动力单元中设备的性能非常重要。为了在Mutnovsk地热发电厂中利用废地热盐水，联合循环发电设备的冷凝器中的最佳空气温度为+ 5℃。通过使用Mutnovsk地热发电厂1的地热盐水以0.2 MPa的压力闪蒸获得的二次蒸汽，可在蒸汽轮机中产生高达8 MW的电力，在二元涡轮机中产生5 MW的额外功率周期。

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