Experimental study of overpressure and temperature field behaviors of a methane-air mixture with different ignition positions, solid structure obstacles and initial turbulence levels

According to the principle of heat transfer, the temperature field equation in the leeward tunnel was set up and the experimental device with a ratio of 1:20 was built. When it happened to fire in roadway, the correctness of the temperature field equation can be verified by the experiment. In experiments, the armored thermocouple and color paperless recorder were used to record the temperature of each measuring point. The S-3-300 pitot tube and YJB-2500 compensation micro-manometer were used to determine the wind speed. When the mine roadway fired, the experiment determined the temperature field equation experiment coefficient of Kc. It showed that in the developing phase of the fire Kc= 15 ~ 20, in the stable phase of the fire Kc= 10 ~ 15, in the failing phase of the fire Kc= 20 ~ 25.

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Study on Combustor Outlet Temperature Field of Gas Turbine

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.138-139.962 ◽

2011 ◽

Vol 138-139 ◽

pp. 962-966 ◽

Cited By ~ 1

Author(s):

Kai Liu ◽

Li Xu

Keyword(s):

Experimental Study ◽

Temperature Field ◽

Gas Turbine ◽

Reference Value ◽

Test System ◽

Outlet Temperature ◽

Test Results ◽

Heavy Duty ◽

Pressure Test ◽

Heavy Duty Gas Turbine

Experimental study on combustor outlet temperature field of heavy-duty gas turbine had been finished on high-pressure test system. Experimental results indicate: The OTDF is sensitive to diameter of dilution holes, and the RTDF is sensitive to location of dilution holes. The test results have important guiding significance and reference value to design, commission and working about the similar combustor.

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Experimental study of the temperature field generated during orthogonal machining of an aluminum alloy

Experimental Mechanics ◽

10.1007/bf02410886 ◽

2002 ◽

Vol 42 (2) ◽

pp. 221-229 ◽

Cited By ~ 40

Author(s):

K. M. Vernaza-Peña ◽

J. J. Mason ◽

M. Li

Keyword(s):

Experimental Study ◽

Aluminum Alloy ◽

Temperature Field ◽

Orthogonal Machining

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Experimental Study on Burning Process and Characteristic of Sodium Columnar Fire

Volume 6: Nuclear Education, Public Acceptance and Related Issues; Instrumentation and Controls (I&C); Fusion Engineering; Beyond Design Basis Events ◽

10.1115/icone22-30943 ◽

2014 ◽

Author(s):

Ye-xin Tang ◽

Zhi-gang Zhang ◽

Ming Guo ◽

Shu-bin Sun

Keyword(s):

Experimental Study ◽

High Pressure ◽

Stainless Steel ◽

Temperature Field ◽

Liquid Sodium ◽

Maximum Temperature ◽

Radial Temperature ◽

Burning Process ◽

Short Time ◽

Hydrodynamic Effects

A variety of sodium fire generated by the leakage of liquid sodium in the FBR is common. This paper focuses on the burning process and characteristics of sodium fire in a columnar flow. About 290°C liquid sodium was injected into a 7.9 m3 stainless steel cylindrical combustion space to shape the sodium columnar fire by 0.2 MPa high pressure nitrogen. The data of temperature field for the study of burning characteristic of sodium columnar fire have been collected by the temperature acquisition system located in the combustion space. The sodium flow maintains the columnar shape at first, and disperses by hydrodynamic effects on its way down. About 64s after the initiating time of sodium ejection for this experiment, the maximum temperature of the area close to the ejection center reaches over 1200°C. And the maximum temperature appears at the space of 1–1.5m from the plate. But the high temperature lasts for a short time and reduces rapidly. The radial temperature of the area far from the sodium flow is relatively low and generally about 200°C, and maximally about 350 °C. This study is helpful to evaluate the combustion characteristics and burning process of the sodium fire in the sodium-related facilities.

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