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Cooling characteristics of an experimental tail-pipe burner with an annular cooling-air passage

Description: The effects of tail-pipe fuel-air ratio (exhaust-gas temperatures from approximately 3060 degrees to 3825 degrees R), radial distribution of tail-pipe fuel flow, and mass flow of combustion gas and the inside wall were determined for an experimental tail-pipe burner cooled by air flowing through and insulated cooling-air to combustion gas mass flow from 0.066 to 0.192 were also determined. Results regarding the reproducibility of combustion-gas temperature profiles, effect of variables on average longitudinal profiles of combustion-gas temperature, variation of gas temperatures near the wall with cooling-air flow and temperature, and effects of variables on transverse gas temperatures are provided.
Date: February 26, 1952
Creator: Koffel, William K. & Kaufman, Harold R.
Partner: UNT Libraries Government Documents Department

[New]

Description: Photograph of a man hold a pipe. In the image, the unidentified man is hold a pipe and looking down at the camera with bare trees at the edge of the frame.
Date: unknown
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

[Wade Clark]

Description: Photograph of Wade Clark laying the grass. In the image, Clark, with a pipe in his mouth, is looking at the camera while resting on one arm. More grass and trees can be seen behind him.
Date: unknown
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

[Wade Clark]

Description: Photograph of Wade Clark posing for the camera. In the image, Clark is smoking a pipe in a button-up collared shirt and a couch can be seen behind him.
Date: unknown
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

CSER 97-001 Criticality safety limits for PFP 26-inch vacuum lineremoval

Description: As part of the plutonium stabilization operations in the 234-5Z Building, several runs of 26-inch (26 inches of Hg) process vacuum header, along with associated smaller piping is to be cut into sections and disposed of. This criticality safety evaluation report (CSER) requested by Nirider (1996) addresses the removal of several hundred feet of abandoned 3 and 4 inch nominal diameter vacuum header and associated smaller diameter piping runs located in the duct level of the 234-5Z Building in rooms 262, 263, and 264 as shown in the two attached drawings.
Date: February 14, 1997
Creator: Himes, D. A.
Partner: UNT Libraries Government Documents Department

Subsurface electromagnetic measurement through steel casing

Description: Numerical calculations show that useful information can be obtained in an electromagnetic crosswell survey where one of the wells is cased in steel. Our simple model is based on the assumption of an infinitely long uniform casing embedded in a homogeneous full space. Nevertheless the results indicate that if the pipe characteristics are independently known then the formation signal can be accurately recovered. This is best done at a single frequency where the pipe attenuation is modest. In fact we show that the optimal frequency for formation signal recovery is defined mainly by the pipe parameters and is largely independent of the formation conductivity.
Date: November 1998
Creator: Becker, A. B.; Wang, B. & Lee, K. H.
Partner: UNT Libraries Government Documents Department

Theoretical and measured attenuation of mufflers at room temperature without flow, with comments on engine-exhaust muffler design

Description: Equations are presented for the attenuation characteristics of several types of mufflers. Experimental curves of attenuation plotted against frequency are presented for 77 different mufflers and the results are compared with theory. The experiments were made at room temperature without flow and the sound source was a loud-speaker. A method is given for including the tail pipe in the calculations. The application of the theory to the design of engine-exhaust mufflers is discussed, and charts have been included for the assistance of the designer.
Date: February 1953
Creator: Davis, Don D., Jr.; Stevens, George L., Jr.; Moore, Dewey & Stokes, George M.
Partner: UNT Libraries Government Documents Department

LOGARITHMIC SPIRAL LIGHT PIPE FOR SCINTILLATORS

Description: A prccedure is described for designing and making logarithmic spiral light pipes which are to be used in coupling scintillators to photomultipliers in cases where the scintillator must be placed in a strong magnetic field. (C.J.G.)
Date: August 1, 1960
Creator: Kaiser, W.C.; MacKay, A.J. & Managan, W.W.
Partner: UNT Libraries Government Documents Department