• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geothermics >Unit 5 bottoming binary plant at Miravalles geothermal field, Costa Rica: Planning, design, performance and impact
【24h】

Unit 5 bottoming binary plant at Miravalles geothermal field, Costa Rica: Planning, design, performance and impact

机译：哥斯达黎加米拉瓦莱斯地热田的5号机组底部二元工厂：规划，设计，性能和影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Miravalles geothermal power station in Costa Rica is described before and after the addition of Unit 5, a bottoming binary power plant. The early planning and design alternatives for the new unit, the bids, the selection criteria followed, and details of the final design, including the unique asymmetrical piping layout, are discussed. The performance of Unit 5 is assessed both on a cycle and an overall plant basis. Thermal and utilization efficiencies are reported. The pentane power cycle is shown to scale in pressure-enthalpy and temperature-entropy diagrams. The analysis of data on 2 years of operation indicates that, during its acceptance tests, Unit 5 showed a net overall plant thermal efficiency in excess of 16%. Much of the operating data are burdened with such scatter and uncertainty as to render conclusions difficult to draw. However, recent, more reliable data have revealed a drop-off in efficiency that was likely caused by changes in brine supply flow rate relative to the design value. The average capacity factor over the plant's first 26 months was 94% and at least one of the two modules was in operation 96% of the time. Unit 5 raised the overall Miravalles utilization efficiency by about 13% without the need for additional wells.
机译：介绍了哥斯达黎加的Miravalles地热电站，在增加了5号机组（有底二元电站）之前和之后。讨论了新机组的早期规划和设计替代方案，投标书，遵循的选择标准以及最终设计的细节，包括独特的非对称管道布局。第5单元的性能以周期和整个工厂为基础进行评估。报告了热效率和利用率。戊烷功率循环在压力-焓图和温度-熵图中按比例显示。对运行2年的数据进行的分析表明，在验收测试中，5号机组的净总热效率超过16％。许多运行数据承受着分散和不确定性的负担，以致于难以得出结论。但是，最近的更可靠的数据表明，效率的下降很可能是由于盐水供应流量相对于设计值的变化而引起的。工厂最初26个月的平均产能系数为94％，两个模块中至少有一个在96％的时间内处于运行状态。第5单元无需额外的油井，就将Miravalles的整体利用率提高了约13％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号