NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Determination of convective diffusion heat/mass transfer rates to burner rig test targets comparable in size to cross-stream jet diameterTwo sets of experiments have been performed to be able to predict the convective diffusion heat/mass transfer rates to a cylindrical target whose height and diameter are comparable to, but less than, the diameter of the circular cross-stream jet, thereby simulating the same geometric configuration as a typical burner rig test specimen located in the cross-stream of the combustor exit nozzlle. The first set exploits the naphthalene sublimation technique to detetermine the heat/mass transfer coefficient under isothermal conditions for various flow rates (Reynolds numbers). The second set, conducted at various combustion temperatures and Reynolds numbers, utilized the temperature variation along the surface of the above-mentioned target under steady-state conditions to estimate the effect of cooling (dilution) due to the entrainment of stagnant room temperature air. The experimental information obtained is used to predict high temperature, high velocity corrosive salt vapor deposition rates in burner rigs on collectors that are geometrically the same. The agreement with preliminary data obtained from Na2S04 vapor deposition experiments is found to be excellent.
Document ID
19860063402
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gokoglu, S. A.
(NASA Lewis Research Center Cleveland, OH, United States)
Santoro, G. J.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
June 1, 1986
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
ASME PAPER 86-GT-68
Accession Number
86A48140
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available