Specific Heats of Saturated and Compressed Liquid Propane

Area of Science:

• Thermodynamics
• Physical Chemistry
• Fluid Properties

Background:

• Accurate thermodynamic data are crucial for chemical process design and safety.
• Experimental determination of specific heat is essential for understanding fluid behavior.
• Propane is a widely used hydrocarbon with significant industrial applications.

Purpose of the Study:

• To experimentally determine the specific heats of saturated and compressed liquid propane.
• To provide new data for propane along the coexistence curve and isochores.
• To validate existing thermodynamic models and data for propane.

Main Methods:

• Measurements of specific heat at constant volume for saturated liquid propane.
• Determination of specific heat for compressed liquid propane along nine isochores.
• Utilized experimental techniques covering temperatures from ~85 K to 289 K and pressures up to 300 bar.

Main Results:

• Experimental specific heat data for saturated liquid propane were obtained from ~85 K to 289 K.
• Specific heats for compressed liquid propane were determined at nine densities, up to twice the critical density.
• New data demonstrate agreement within approximately three percent with previous experimental and derived data.

Conclusions:

• The experimental data provide a valuable resource for thermodynamic calculations involving propane.
• The findings support the reliability of existing data and models within the studied range.
• This research contributes to a more comprehensive understanding of propane's thermophysical properties.