Appendix: ASTM C16 Survey for Heat Transfer Test Method Equipment

2009 ◽  
pp. 395-395-20
Keyword(s):  
Heat Transfer ◽  
Transfer Test ◽  
Test Method

Development of Micro Rectangular Channel Gas Cooler

2012 ◽  
Vol 614-615 ◽  
pp. 321-326
Author(s):  
Bing Qiang He ◽  
Chun Ling Liao
Keyword(s):  
Heat Transfer ◽  
Transfer Test ◽  
Rectangular Channel ◽  
Test Method ◽  
Micro Channel ◽  
Element Analysis ◽  
Porous Pipe ◽  
Main Components ◽  
Forced Cooling ◽  
Surface Temperature Field

This paper configures rectangular micro channel porous pipe gas cooler model by numerical method, and adopts finite-element analysis and bursting test method to make intensity checking of main components of gas cooler, and make real rectangular micro channel porous pipe gas cooler at the same time by configuration technique of infiltration seal weld and “pierced flanging”. Through heat transfer test of gas cooler, it obtains the surface temperature field of rectangular micro channel porous pipe gas cooler, and makes analysis of the temperature distribution in nearby area of entrance and exit and influence of forced cooling to gas cooler heat transfer.

The Infrared Characteristics of the Wall Temperature of Boiling Heat Transfer in Microchannel

2011 ◽  
Vol 383-390 ◽  
pp. 811-815
Author(s):  
Hu Gen Ma ◽  
Jian Mei Bai ◽  
Rong Jian Xie ◽  
Wen Jing Tu
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
Wall Temperature ◽  
Boiling Heat Transfer ◽  
Transfer Test ◽  
Axial Direction ◽  
Transfer Model ◽  
Micro Channel ◽  
Vapor Quality ◽  
Test Rig

In this paper, the boiling heat transfer test rig was designed and built, while the characteristics of boiling Heat Transfer of refrigerants in micro-channel was researched. The wall temperature of micro-channel was measured by TH5104 Infrared thermography. The results showed that there were obvious variations for wall temperature of micro-channel along the axial direction when boiling heat transfer occurred in the micro-channel. The temperature distribution affected obviously by the heat flux, mass flow rate; vapor quality and heat transfer model.

Transient Liquid Crystal Technique for Convective Heat Transfer on Rough Surfaces

1995 ◽  
Author(s):  
Douglas N. Barlow ◽  
Yong W. Kim
Keyword(s):  
Heat Transfer ◽  
Rough Surfaces ◽  
Empirical Relationship ◽  
Local Heat Transfer ◽  
Local Heat ◽  
Test Method ◽  
Planar Surface ◽  
Transfer Coefficients ◽  
Heat Transfer Coefficients ◽  
Turbine Stator

The local heat transfer coefficients are obtained on a rough planar surface simulating in-service turbine stator vane sections. A transient experimental technique is presented that permits the determination of local heat transfer coefficients for a rough planar surface using thermochromic liquid crystals. The technique involves the use of a composite test surface in the form of a thin foil of stainless steel with roughness elements laminated over a transparent substrate. Tests are conducted on a splitter plate to provide momentum boundary layer thicknesses to roughness heights appropriate for actual turbine stator vanes. Data are reported for two roughness geometries and two free stream velocities. The range of Reynolds numbers along with the ratio of average roughness value to momentum thickness matches conditions encountered on the pressure side of the first stage stator vanes in current high performance turbofan engines. A numerical simulation is conducted to validate the test method. Results for the investigated rough surfaces are compared with an available empirical relationship.

Out-of-Pile Heat Transfer Test Device for Low Pressure Irradiation Capsule

2013 ◽  
Author(s):  
Yongzhe Ma ◽  
Peisheng Zhang
Keyword(s):  
Heat Transfer ◽  
Thermal Analysis ◽  
Transfer Test ◽  
Research Reactor ◽  
Structural Parameters ◽  
Electric Heating ◽  
Internal Temperature ◽  
Test Device ◽  
Technical Requirements ◽  
China Experimental Fast Reactor

In-pile irradiation capsules are used for fuel and material irradiation at research reactor. Design of irradiation capsule should be based on thermal analysis to determine the key structural parameters. A set of out-of-pile heat transfer test device is innovated for the design validation. Heat transfer performance of in-pile irradiation capsule can be simulated, which includes heat conduction, convection and radiation. Electric heating rod is used as the heat source for the device, which simulates linear power or heat flux of in-pile irradiation capsule. Temperature different of internal components is simulated by adjusting helium gap. Thermocouples are fixed to measure wall temperature and internal temperature of the components in the device. Some out-of-pile heat transfer tests have been carried out for irradiation capsule development for China Advanced Research Reactor (CARR) and China Experimental Fast Reactor (CEFR) at China Institute of Atomic Energy (CIAE). The test verifies surface and internal temperature of the capsules and conclusions of thermal analysis. A finished in-pile test verifies the capsule design at rated power, which also proves that results of the out-of-pile heat transfer test are conservative. The article describes the function, structure, test process and other aspects of the technical requirements of the heat transfer test device.

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