scholarly journals HEAT TRANSFER SALT FOR HIGH TEMPERATURE STEAM GENERATION.

1972 ◽  
Author(s):  
E. G. Bohlmann
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Steam Generation ◽  
High Temperature Steam

scholarly journals Solar-driven high-temperature steam generation at ambient pressure

2019 ◽  
Vol 29 (1) ◽  
pp. 10-15 ◽  
Author(s):  
Xinyu Wang ◽  
Yanming Liu ◽  
Rui Feng ◽  
Yao Zhang ◽  
Chao Chang ◽  
...  
Keyword(s):  
High Temperature ◽  
Ambient Pressure ◽  
Steam Generation ◽  
High Temperature Steam

Combustion of Crushed, Dried Texas Lignite and Char in Steam Power Boilers

1962 ◽  
Vol 84 (1) ◽  
pp. 139-149
Author(s):  
V. Z. Caracristi ◽  
H. D. Mumper
Keyword(s):  
Power Generation ◽  
High Pressure ◽  
High Temperature ◽  
Low Cost ◽  
Steam Generation ◽  
Steam Power ◽  
High Pressure High Temperature ◽  
High Temperature Steam

The development and application of a processed lignite fuel to the generation of high-pressure, high-temperature steam are described. The economics of this processed fuel for steam generation is a part of the over-all economics of low-cost power generation for the production of aluminum.

Temperature Attenuation Along Pipe Support Stanchions

2002 ◽  
Author(s):  
Chakrapani Basavaraju ◽  
Ronald C. Fox
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Coefficient Of Friction ◽  
Steam Line ◽  
Heat Transfer Analysis ◽  
Bottom Plate ◽  
Bottom Surface ◽  
Element Analysis ◽  
The Coefficient Of Friction ◽  
High Temperature Steam

High temperature steam lines in power plant piping systems are often supported by the use of pipe support stanchions welded to the steam pipe. The end of the pipe stanchion has a steel plate welded to it, which typically slides on rack steel. For vertical and guide supports, there could be considerable thermal movement in the lateral unrestrained directions, and could result in significant frictional loads. The associated frictional loads are given due consideration in piping local stress evaluations as well as in the design of pipe support structures. For some situations, it often becomes necessary to utilize a teflon-fluorogold type surface at the stanchion end plate in order to reduce the coefficient of friction and hence the frictional loads. The effectiveness of the teflon-fluorogold surface is dependent on the prevailing temperature at that surface. In situations where the stanchions on very high temperature steam lines arc relatively short, the temperature at the teflon surface of the stanchion plate could be high due to heat transfer from the steam line into the stanchion. This high temperature at the bottom surface of the stanchion plate may interfere with sliding and may eventually lead to unanticipated problems such as sticking, increase in the coefficient of friction, or unpredictable frictional behavior. In this paper, finite element analysis approach is utilized to perform heat transfer analysis and to obtain steady state temperature distribution due to decay or attenuation from the steam line surface along the stanchion. The temperature prevailing at the bottom plate surface of the stanchion is also evaluated and guidelines are provided for practical application of the results.

The Effect of Corrosion by Steam at 1100–1500 F Upon the Heat Transfer Through Superheater Tube Alloys

1962 ◽  
Vol 84 (3) ◽  
pp. 289-294 ◽  
Author(s):  
H. L. Solberg ◽  
J. E. Brock ◽  
W. J. Rebello
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Heat Exchangers ◽  
Superheater Tube ◽  
Austenitic Alloys ◽  
Inner Surface ◽  
In Series ◽  
High Temperature Steam ◽  
Tubular Specimens

Heat-transfer tests were made on tubular specimens of ferritic and austenitic types of superheater alloys which had been exposed to high-temperature steam for periods of 6, 12, or 18 months for the purpose of determining the effect of corrosion by steam. Specimens of scaled tubes and new tubes of the same alloy were machined externally to the same dimensions and surfaces, were mounted in similar heat exchangers, and were tested in series under such conditions that the only difference was in the scaled inner surface of the corroded tube and the bright, smooth, honed inner surface of the clean tube. The heat transfer through ferritic tubes was reduced by as much as fifteen per cent for the temperatures and exposure periods reported upon. The thin, dense scale on the austenitic alloys increased the heat transfer over that of the clean tube by as much as eight per cent, probably because of the increased roughness of the corroded surface.

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