Accession Number : AD0472136


Title :   RESEARCH ON RHEOLOGIC AND THERMODYNAMIC PROPERTIES OF SOLID AND SLUSH HYDROGEN.


Descriptive Note : Final technical rept. 15 Jun 63-15 Jun 65,


Corporate Author : UNION CARBIDE CORP TONAWANDA NY LINDE DIV


Personal Author(s) : Dwyer, Robert F ; Cook, Gerhard A


Report Date : 15 Oct 1965


Pagination or Media Count : 1


Abstract : The purpose of this contract was to obtain from the literature and from experimental work as much information as possible on the following properties of solid and slush p-H2: heat of fusion, density, heat capacity, thermal conductivity, extrudability, and viscosity down to temperatures as low as 2.5 K and up to pressures of 400 atm. The heat of fusion, density, and thermal conductivity of solid p-H2 and the thermal conductivity of liquid p-H2 were determined experimentally to pressures of several hundred atmospheres. Experiments were also carried out on the extrudability and hardness of solid p-H2. The heat capacity of solid p-H2 was calculated over the temperature range 0 to 15 K and at pressures up to 400 atm. The enthalpy was calculated at saturation and along the melting line. Reliable values for the density, heat capacity, enthalpy, and viscosity of liquid p-H2 were obtained from the literature. From the properties of the solid and liquid, most of the properties of hydrogen slush can be calculated when the per cent of solid in the slush is known; equations for carrying out such calculations are given. (Author)


Descriptors :   HYDROGEN , FLUID FLOW , HEAT OF FUSION , DENSITY , EXTRUSION , HARDNESS , SPECIFIC HEAT , ENTHALPY , VISCOSITY , TABLES(DATA) , EXPERIMENTAL DATA , LABORATORIES , EXPERIMENTAL DATA , GRAPHICS


Distribution Statement : APPROVED FOR PUBLIC RELEASE