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首页> 外文会议>Twenty-Eighth Industrial Energy Technology Conference (IETC 2006) >Thermal and Economic Analyses of Energy Savingby Enclosing Gas Turbine Combustor Section
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Thermal and Economic Analyses of Energy Savingby Enclosing Gas Turbine Combustor Section

机译：封闭燃气轮机燃烧室的节能热经济分析

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摘要

An infrared (IR) thermography inspectionrnindicated a high-temperature area (500~560°F) at therncombustor section of the GE Frame 5 gas turbine ofrnDynegy Gas Processing Plant at Venice, Louisiana.rnTo improve the thermal efficiency and reduce energyrncost, thermal and economic analyses are conductedrnby enclosing the hot combustor section. This paperrnpresents the methodology and procedure developedrnto calculate the thermal losses from the gas turbinerncombustor surface with and without the enclosure.rnBoth natural convection and thermal radiation arernconsidered. Iteration is employed to obtain thernenclosure surface temperature. Sensitivities of thernthermal losses to surface temperature, emissivity andrnradiation view factor are examined. It is found thatrnthe thermal losses from the combustor surface of thernstudied gas turbine are about 0.26 MMBtu/h (77.35rnkW). The proposed enclosure can reduce the thermalrnloss to 0.029 MMBtu/h (8.5 kW). The saving isrnequivalent to about 0.17% in fuel saving. The returnrnof investment is estimated to be one year. However,rnimplementation of this proposed insulation enclosurernrequires approval from the turbine manufacturer.
机译：红外（IR）热像仪检查指示路易斯安那州威尼斯戴尼基气体处理厂的GE 5号框架燃气轮机的燃烧室部分处于高温区域（500〜560°F）。通过封闭热燃烧室进行分析。本文介绍了计算带有和不带有外壳的燃气轮机燃烧器表面的热损失的方法和步骤。考虑了自然对流和热辐射。使用迭代来获得外壳的表面温度。考察了热损失对表面温度，发射率和辐射视角因素的敏感性。研究的燃气轮机燃烧室表面的热损失约为0.26 MMBtu / h（77.35rnkW）。建议的机箱可将热损耗降低至0.029 MMBtu / h（8.5 kW）。节省相当于节省燃料约0.17％。预计投资回报期为一年。但是，这种绝缘外壳的实施需要涡轮机制造商的批准。

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