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 Wysłany: Nie 9:06, 28 Lis 2010 Temat postu: ugg botas Reduce the overall performance of therma |
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Reduce the overall power plant performance test of Uncertainty
Pieces should avoid direct sunlight and away from any other dry bulb temperature and the different surfaces. If the measuring point exposure to the sun, apply a double-wall sensing element of the shading plate closed, so that air from the flow between the sensing element and the wall; (2) The sensing element should be suspended in the air flow, and can not touch the wall with the shading plate ; (3) The application of clean water sensing element wrapped tampons, absorbent cotton sliver from a distilled water container to keep moist; (4) air flow rate sensing element should be maintained at 800-1200 ft / min between; (5) flow through the sensing element should not be the air around the fan motor or other heat source heating; (6) dry and wet bulb thermometer should be placed at least 5 feet above the ground should not be placed 5 feet from the vegetation and water within place. Thermocouple drift after temperature cycling is easy to produce. Loop is placed in the thermocouple temperature value, and then moved to ambient temperature process. Thermocouple should be kept to a minimum number of cycles experienced. Gas Turbine Technology Volume 17 58 5 Time and duration of test stability test,[link widoczny dla zalogowanych], should ensure that adequate time stability test, while ensuring there is enough time to experiment. The following is a typical power plant stable state before the test trial lasted for the shortest time schedule. Table 2 Typical steady state before the test time (for reference) plant type and stability (hours) gas-fired fluidized bed power plant burning pulverized coal combustion power plant with a reheat burner simple cycle and combined cycle coal feeder ESP 11,124 (Note) 114 Note: If a good chemical stability,[link widoczny dla zalogowanych], you can meet the required 1 hour after the start. Table 3, the shortest duration of plant type test test duration (hours) gas-fired fluidized bed power plant burning pulverized coal combustion power plant with a reheat burner simple cycle and combined cycle coal dust to 6 tests summary of test measures and uncertainty analysis should be carried out to calculate the actual value of the uncertainty test, test to see whether the outline of requirements to determine if the study is valid and invalid or partially invalid. At the same time can be generated in the process of testing a large parameter uncertainty analysis, to analyze the reasons for a greater uncertainty, and proposed to reduce measurement error, measures to reduce the overall uncertainty, gain experience for future trials. References: [1] PerfomaaneeTestCodeOnOverallPlantPerformance. AEP1 ℃ 46-1996. [2] Jiao tree construction. A gas-steam combined cycle [M]. Beijing: Mechanical Industry Press, 200O. 2. [3] Zhu Junhui. The performance of combined cycle units and analysis of the main factors [J]. Power Science and Engineering. 2002.4. [4] Jiao tree construction. On the combined cycle thermal performance of acceptance tests [J]. Gas Turbine Technology, 2004.17 (1). [5] Zhang Na, Cai Ruixian. Ambient temperature on gas turbine heat and power for the plant and combined cycle performance of variable conditions [J]. Engineering Thermophysics, 2001,22 (5). [6] Huang Si. Uncertainty in Turbine Performance Test Application of [c]. State Electric Power Research Institute. 2004. ResearchonReduceGrossPerformanceTestUncertaintyofPowerPlantLIUXiao-h0ng, MAnng-shan (ThermalPowerResearchInstitute, sic,[link widoczny dla zalogowanych], Xian710032, CI1irIa) Abstract: Thispaperdiscussedfrompmtest, posttest, ~ lectedinstrument, calibratedins】 mentsaj1dhowtclusethesein. stnmmntstoreduceperformancetestuncertainty, itisalsobenefittootherspecialty. Keywords: Performancetest; Uncertainty ・ New Books gas turbine overhaul $ -4 ~-I-2004 年 10 month from Machinery Industry Press, introduces the working principle of gas turbines,[link widoczny dla zalogowanych], structures,[link widoczny dla zalogowanych], methods and 9E gas turbine maintenance overhaul process, etc. available in the reference gas turbine maintenance technicians. Book edited by the Ren Qizhi, a total of 174 218 thousand words, price 17 yuan. (Editorial Staff)
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