- Author
-
Yang, J. C.
|
Vazquez, I.
|
Boyer, C. I.
|
Huber, M. L.
|
Weber, L.
- Title
- Measured and Predicted Thermodynamic Properties of Selected Halon Alternative/Nitrogen Mixtures.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
National Institute of Standards and Technology, Boulder, CO
- Journal
-
International Journal of Refrigeration,
Vol. 20,
No. 2,
96-105,
1997
- Keywords
-
halon alternatives
|
nitrogen
|
thermodynamic properties
|
equations
|
experimental design
|
thermophysical properties
- Abstract
- Experimental measurements of selected thermodynamic properties of alternative agent/nitrogen mixtures were performed. The selected alternatives were HFC-227 ea (C3HF7), CF3I, FC-218 (C3F8), and HFC-125 (C2HF5); CF3Br was also included as a reference. A thermodynamic model based on an extended corresponding states principle was used. The model predictions were generally found to be within 10% or less of the experimental measurements. The model can be used as a computational tool for designers of fire extinguishers to obtain pressure-temperature relationships for selected halon alternative/nitrogen mixtures.