Author: Calvin B. Cobb
Publisher:
ISBN:
Category :
Languages : en
Pages : 152
Book Description
A study of surface and geometric effects on the nucleate boiling of liquid nitrogen and liquid argon from atmospheric to the critical pressure
Author: Calvin B. Cobb
Publisher:
ISBN:
Category :
Languages : en
Pages : 152
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 152
Book Description
A Study of the Nucleate Boiling of Liquid Nitrogen, Liquid Argon, and Liquid Carbon Monoxide from Atmospheric to Near the Critical Pressure
Author: Craig Bauer Johler
Publisher:
ISBN:
Category : Carbon monoxide
Languages : en
Pages : 132
Book Description
"The nucleate boiling curves of three corresponding states liquids (nitrogen, argon, and carbon monoxide) were analyzed. Each liquid was studied at pressures ranging from atmospheric pressure to near the critical pressure. Saturated liquid boiling was conducted from cylindrical heaters in the horizontal position having diameters of 0.75 inches and lengths of three inches. Liquid nitrogen was boiled from four different gold heat transfer surfaces; argon and carbon monoxide were boiled from the same gold surface. The critical heat flux correlation of Cobb and Park was further verified by agreement with the experimental critical heat flux ratios obtained in this investigation. It was demonstrated that the critical heat flux is a function of the heat transfer surface; and that this dependence on surface conditions should be provided for in maximum heat flux correlations. Nucleate boiling curves obtained for liquid nitrogen illustrated that a change in boiling heat transfer surface affects both the slope and shape of nucleate boiling curves. The nucleate boiling of carbon monoxide was observed to show partial film boiling along with low critical heat fluxes. Measured over a wide range of reduced pressures, the liquid argon critical heat fluxes were approximately 24 percent higher than liquid nitrogen critical heat fluxes for a given surface. When compared to the critical heat fluxes of liquid carbon monoxide, the critical heat fluxes of liquid argon and liquid nitrogen averaged 176 and 130 percent larger in magnitude respectively"--Abstract, leaf ii.
Publisher:
ISBN:
Category : Carbon monoxide
Languages : en
Pages : 132
Book Description
"The nucleate boiling curves of three corresponding states liquids (nitrogen, argon, and carbon monoxide) were analyzed. Each liquid was studied at pressures ranging from atmospheric pressure to near the critical pressure. Saturated liquid boiling was conducted from cylindrical heaters in the horizontal position having diameters of 0.75 inches and lengths of three inches. Liquid nitrogen was boiled from four different gold heat transfer surfaces; argon and carbon monoxide were boiled from the same gold surface. The critical heat flux correlation of Cobb and Park was further verified by agreement with the experimental critical heat flux ratios obtained in this investigation. It was demonstrated that the critical heat flux is a function of the heat transfer surface; and that this dependence on surface conditions should be provided for in maximum heat flux correlations. Nucleate boiling curves obtained for liquid nitrogen illustrated that a change in boiling heat transfer surface affects both the slope and shape of nucleate boiling curves. The nucleate boiling of carbon monoxide was observed to show partial film boiling along with low critical heat fluxes. Measured over a wide range of reduced pressures, the liquid argon critical heat fluxes were approximately 24 percent higher than liquid nitrogen critical heat fluxes for a given surface. When compared to the critical heat fluxes of liquid carbon monoxide, the critical heat fluxes of liquid argon and liquid nitrogen averaged 176 and 130 percent larger in magnitude respectively"--Abstract, leaf ii.
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1498
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1498
Book Description
Abstracts of Theses
Author: University of Missouri--Rolla
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 48
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 48
Book Description
NASA SP.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 172
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 172
Book Description
Dissertation Abstracts International
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1090
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1090
Book Description
An Experimental Study of Nucleate Boiling in Saturated Liquid Oxygen and Nitrogen Between Subatmospheric and Thee Critical Pressures
Author: Philip George Kosky
Publisher:
ISBN:
Category :
Languages : en
Pages : 162
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 162
Book Description
A Visual Study of Velocity and Buoyancy Effects on Boiling Nitrogen
Author: Robert J. Simoneau
Publisher:
ISBN:
Category : Film boiling
Languages : en
Pages : 32
Book Description
Publisher:
ISBN:
Category : Film boiling
Languages : en
Pages : 32
Book Description
Survey of the Literature Pertaining to the Phenomena of Nucleate Boiling
Author: R. A. Rockow
Publisher:
ISBN:
Category : Fouling
Languages : en
Pages : 58
Book Description
Publisher:
ISBN:
Category : Fouling
Languages : en
Pages : 58
Book Description
Nucleate Boiling Heat Transfer to Liquid Nitrogen at Atmospheric Pressure
Author: Satish R. Parikh
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 170
Book Description
"The object of this investigation was to study the effect of micro-roughness, a thin layer of oil, and infra-red radiations on the cylindrical heat transfer surface of copper, in liquid nitrogen and at atmospheric pressure during nucleate boiling. An attempt was made to find any possible effect of orientation of the heat transfer element on nucleate boiling. A number of different runs were taken with different degrees of roughness, and different orientation positions. Nucleate boiling has been found to be nearly independent of the heat transfer surface roughness and of orientation while strongly dependent on the chemical nature of the surface. Extremely high temperature differences were obtained in the nucleate boiling region by application of a thin layer of oil to the heat transfer surface. Temperature gradients in both the axial direction and the radial direction were found for the surface of the heat transfer element"--Abstract, leaf iii.
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 170
Book Description
"The object of this investigation was to study the effect of micro-roughness, a thin layer of oil, and infra-red radiations on the cylindrical heat transfer surface of copper, in liquid nitrogen and at atmospheric pressure during nucleate boiling. An attempt was made to find any possible effect of orientation of the heat transfer element on nucleate boiling. A number of different runs were taken with different degrees of roughness, and different orientation positions. Nucleate boiling has been found to be nearly independent of the heat transfer surface roughness and of orientation while strongly dependent on the chemical nature of the surface. Extremely high temperature differences were obtained in the nucleate boiling region by application of a thin layer of oil to the heat transfer surface. Temperature gradients in both the axial direction and the radial direction were found for the surface of the heat transfer element"--Abstract, leaf iii.