%0 Journal Article %1 springerlink:10.1007/BF01438675 %A Tillner-Roth, R. %D 1996 %I Springer Netherlands %J International Journal of Thermophysics %K 1996 R134a ammonia analysis enthalpy vapor-pressure %P 1365-1385 %T A nonlinear regression analysis for estimating low-temperature vapor pressures and enthalpies of vaporization applied to refrigerants %U http://dx.doi.org/10.1007/BF01438675 %V 17 %X A new method is presented to extrapolate experimental vapor pressures down to the triple Point. The method involves a nonlinear regression analysis based on the Clausius Clapeyron equation and a simple relation for the enthalpy of vaporization Triple-point pressures and vapor pressures up to 0.1 0.2 MPa are estimated for R125, R32, R143a, R134a, R152a, R123, R124, and ammonia; they generally agree with available experimental data within their uncertainty, Equations for the enthalpy of vaporization which describe this property fairly well at low temperatures are obtained as a byproduct.

@article{springerlink:10.1007/BF01438675, abstract = {A new method is presented to extrapolate experimental vapor pressures down to the triple Point. The method involves a nonlinear regression analysis based on the Clausius Clapeyron equation and a simple relation for the enthalpy of vaporization Triple-point pressures and vapor pressures up to 0.1 0.2 MPa are estimated for R125, R32, R143a, R134a, R152a, R123, R124, and ammonia; they generally agree with available experimental data within their uncertainty, Equations for the enthalpy of vaporization which describe this property fairly well at low temperatures are obtained as a byproduct.}, added-at = {2011-07-15T14:31:42.000+0200}, affiliation = {Thermophysics Division National Institute of Standards and Technology 325 Broadway 80303 Boulder Colorado USA}, author = {Tillner-Roth, R.}, biburl = {https://www.bibsonomy.org/bibtex/221932847915e217186f43524a9c17a84/thorade}, interhash = {be99d188d3ece78ae4489116172a1a96}, intrahash = {21932847915e217186f43524a9c17a84}, issn = {0195-928X}, issue = {6}, journal = {International Journal of Thermophysics}, keyword = {Physics and Astronomy}, keywords = {1996 R134a ammonia analysis enthalpy vapor-pressure}, note = {10.1007/BF01438675}, pages = {1365-1385}, publisher = {Springer Netherlands}, timestamp = {2011-07-15T14:31:42.000+0200}, title = {A nonlinear regression analysis for estimating low-temperature vapor pressures and enthalpies of vaporization applied to refrigerants}, url = {http://dx.doi.org/10.1007/BF01438675}, volume = 17, year = 1996 }