• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Conversion & Management >Exergetic and thermoeconomic analysis of a trigeneration system producing electricity, hot water, and fresh water driven by low-temperature geothermal sources
【24h】

Exergetic and thermoeconomic analysis of a trigeneration system producing electricity, hot water, and fresh water driven by low-temperature geothermal sources

机译：对由低温地热源驱动的电力，热水和淡水的三联发电系统的能量和热经济分析

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

Performance of a small-scale trigeneration system driven by low-temperature geothermal sources for producing fresh water, heating (hot water) and electricity is investigated from thermodynamic and economic standpoints. This system, utilizing a single stage absorption heat transformer leads to an increase in heat source temperature to be used in single stage evaporation desalination process and also providing water heating. Furthermore, an organic Rankine cycle is used for electric power generation. The developed model is validated with available data and effects of decision variables namely geothermal source, absorber and condenser temperatures on energy and exergy efficiencies of the overall system, power to water ratio and levelized cost of energy (LCOE) are investigated. The findings show that the increase in absorber and condenser temperatures leads to lower energy and exergy efficiencies, and higher LCOE and these effects are more significant at lower geothermal temperatures. Moreover, it is estimated that LCOE of proposed system is by far lower than that of a sole ORC powered with low geothermal water sources, whereas levelized cost of water (LCOW) is just comparable with small-scale membrane desalination processes. Utilizing a 100 degrees C geothermal water, the proposed system has a production capacity of 0.662 kg/s fresh water, 161.5 kW power, and 246 kW heat load.
机译：从热力学和经济角度研究了由低温地热源驱动的小规模三联产系统的生产淡水，供暖（热水）和电力的性能。该系统利用单级吸收式热转换器导致在单级蒸发脱盐工艺中使用的热源温度升高，并且还提供水加热。此外，有机朗肯循环用于发电。利用现有数据验证了开发的模型，并研究了决策变量（即地热源，吸收器和冷凝器的温度）对整个系统的能量和火用效率，电水比和平均能源成本（LCOE）的影响。研究结果表明，吸收器和冷凝器温度的升高导致能量和火用效率降低，LCOE升高，并且在较低的地热温度下，这些影响更为显着。此外，据估计，所提出系统的LCOE远低于地热水源低的单一ORC，而均匀的水成本（LCOW）仅与小规模的膜淡化工艺相当。拟议的系统使用100摄氏度的地热水，生产能力为0.662千克/秒的淡水，161.5千瓦的功率和246千瓦的热负荷。

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