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Flow calorimeter for enthalpy increment measurements on condensed gases.

Author(s) : GRINI P. G., OWREN G. A., MAEHLUM H. S., BRENDENG E.

Type of article: Article, IJR article

Summary

A flow calorimeter for enthalpy increment measurements on condensed gases is presented. A better knowledge of the properties of the liquefied natural gas is needed, and therefore a liquid loop has been designed for the authors' flow calorimeter. The fluid loop in the calorimeter is designed in order to avoid the two-phase region, since two phases would give compositional disturbances in the measurements. The avoidance of the two-phase region is made possible by increasing the pressure of the test fluid after the measurement section, then heating the fluid at super critical pressure past the critical point. Finally, the fluid is throttled to the low pressure gas state at the inlet condition of the compressor that circulates the fluid. To perform the pressure increase, a new cryogenic pump has been designed. To evaluate the new equipment, measurements were taken on liquid ethane over the temperature range 146-256 K at pressures between 0.9 and 5.1 megapascals.

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Pages: 32-37

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Details

  • Original title: Flow calorimeter for enthalpy increment measurements on condensed gases.
  • Record ID : 1997-2032
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 20 - n. 1
  • Publication date: 1997/01

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