• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>American Society of Mechanical Engineers(ASME) Turbo Expo vol.7; 20040614-17; Vienna(AT) >PERFORMANCE OF A NOVEL COMBINED COOLING AND POWER GAS TURBINE WITH WATER HARVESTING
【24h】

PERFORMANCE OF A NOVEL COMBINED COOLING AND POWER GAS TURBINE WITH WATER HARVESTING

机译：新型集水制冷和燃气轮机的性能

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

A thermodynamic performance analysis is performed on a novel cooling and power cycle that combines a semi-closed cycle gas turbine called the High Pressure Regenerative Turbine Engine (HPRTE) with an absorption refrigeration unit. Waste heat from the recirculated combustion gas of the HPRTE is used to power the absorption refrigeration unit, which cools the high-pressure compressor inlet of the HPRTE to below ambient conditions and also produces excess refrigeration, in an amount which depends on ambient conditions. The cycle is modeled using traditional one-dimensional steady-state thermodynamics, with state-of-the-art polytropic efficiencies and pressure drops for the turbo-machinery and heat exchangers, and accurate y correlations for the properties of the LiBr-water mixture and the combustion products. Water produced as a product of combustion is intentionally condensed in the evaporator of the vapor absorption refrigeration system. The mixture properties of air account for the water removal rate. The vapor absorption refrigeration unit is designed to provide sufficient cooling for water extraction. The cycle is shown to operate with a thermal efficiency approaching 58% for a turbine inlet temperature of 1400℃ in addition to producing about 0.45 liters of water per liter of fuel consumed. Also at the above operating condition the ratio of the refrigeration effect to the net work output from the system is equal to 0.8. The ratio of mass of water extracted to the mass of fresh air inlet into the combined cycle is obtained for different values of cycle parameters, namely turbine inlet temperature, recuperator inlet temperature and the low pressure compressor ratio. The maximum value of this ratio is found to be around 0.11. It is found that it is a strong function of the recirculation ratio and it decreased by 22 % as the recirculation ratio is decreased by 70 %. The thermodynamic impacts of water extraction on the system performance are also discussed. Based on these results, and prior results, which showed that the HPRTE is very compact, it appears that this cycle would be ideally suited for distributed power and vehicle applications, especially ones with associated air conditioning loads.
机译：对新型冷却和功率循环进行热力学性能分析，该循环将称为高压蓄热式涡轮发动机（HPRTE）的半封闭循环燃气轮机与吸收式制冷装置相结合。来自HPRTE的再循环燃烧气体的废热用于为吸收式制冷单元提供动力，该吸收式制冷单元将HPRTE的高压压缩机进口冷却至低于环境条件，并且还会产生过量的制冷，其制冷量取决于环境条件。使用传统的一维稳态热力学对循环进行建模，对涡轮机械和热交换器具有最先进的多效效率和压降，并且对于LiBr-水混合物和燃烧产物。作为燃烧产物产生的水有意在蒸气吸收式制冷系统的蒸发器中冷凝。空气的混合特性决定了水的去除率。蒸气吸收式制冷机组设计用于为抽水提供足够的冷却。对于1400℃的涡轮机入口温度，该循环以大约58％的热效率运行，此外每消耗一升燃料可产生约0.45升水。同样在上述操作条件下，制冷效果与系统净输出功率之比等于0.8。对于不同的循环参数值，即涡轮机入口温度，换热器入口温度和低压压缩机比率，可以得出提取的水量与进入组合循环的新鲜空气入口量之比。发现该比率的最大值约为0.11。发现这是再循环率的强函数，并且随着再循环率降低70％，它降低了22％。还讨论了水提取对系统性能的热力学影响。根据这些结果以及先前的结果，该结果表明HPRTE非常紧凑，看来此循环非常适合于分布式动力和车辆应用，尤其是具有相关空调负荷的应用。

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