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首页> 外文会议>Geothermal Resources Council Annual Meeting >The Binary Revolution, How the ORC Technology Can Successfully and Cost Effectively Be Applied to Resources that Have Been Traditionally Considered Prerogatives of Steam Cycles
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The Binary Revolution, How the ORC Technology Can Successfully and Cost Effectively Be Applied to Resources that Have Been Traditionally Considered Prerogatives of Steam Cycles

机译：二进制革命，如何将ORC技术成功和成本有效地应用于传统上被认为是蒸汽循环特权的资源

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摘要

While the use of a binary fluid allows generation of electricity from very low temperature liquid dominated geothermal sources, binary has become cost effective also in high enthalpy steam dominated resources. Traditionally ORC technology has shown a definite thermodynamic advantage, in terms of power production, compared to the conventional flashed steam cycles, for resources at moderate temperatures (up to 150-180 °C) and has been shown to be applicable for electricity generation with low-temperature resources (close to 90-100 °C). In recent international bids, binary technology has been proven competitive in terms of performance and cost when applied to high enthalpy steam sources with plant size of 5 - 15 MWel per module. Key feature of binary is that while traditional flash steam power plants exploit only the steam fraction of the geothermal flows, binary can use also the liquid part in order to increase the specific utilization of the resource. Additional positive feature is that the turbine has no contact with the aggressive geothermal fluid, which is confined inside the tubes of the heat exchangers (a wide spectrum of materials can be employed case by case). Furthermore, ORC plants are environmentally more acceptable than any other kind of geothermal power plant because the geothermal fluid can be segregated throughout the whole process. In this way the release of gases or other substances to the environment can be prevented, thus virtually eliminating pollution problems.
机译：虽然使用二元液体允许从非常低温液体主导地热源产生电，但二进制已经变得具有成本效益，也在高焓蒸汽占主导地位的资源中。传统上兽人技术在电力生产方面具有明确的热力学优势，与传统的闪蒸蒸汽循环相比，适用于温度的资源（高达150-180°C），并且已被证明适用于低电平的发电 - 高度的资源（接近90-100°C）。在最近的国际投标中，二元技术已经证明在绩效和成本方面已经竞争，当应用于每个模块的植物尺寸为5 - 15 MWEL的高焓蒸汽源。二元的关键特征是，虽然传统的闪蒸蒸汽发电厂仅利用地热流的蒸汽分数，二进制可以使用液体部分，以提高资源的具体利用。额外的阳性特征是涡轮机与侵蚀性地热流体没有接触，该地热流体被限制在热交换器的管内（可以通过情况使用宽谱的材料）。此外，兽人植物比任何其他种类的地热发电厂都更可接受，因为地热流体可以在整个过程中进行隔离。以这种方式，可以防止气体或其他物质对环境的释放，从而实际地消除了污染问题。

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