Программа - Расчет термодинамических свойств хладагентов REFPROP версия 7.0 - файл n5.xls

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Программа - Расчет термодинамических свойств хладагентов REFPROP версия 7.0
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n5.xls



Overview

Summary
Examples


Sheet 1: Summary











Sample Workbook to demonstrate the use of REFPROP in a Spreadsheet.


























Dr. Eric W. Lemmon
Dr. Mark O. McLinden

Physical and Chemical Properties Division
Physical and Chemical Properties Division

Theory and Modeling of Fluids Group
Experimental Properties of Fluids Group

325 Broadway
325 Broadway

Boulder, CO 80305, U.S.A.
Boulder, CO 80305, U.S.A.
Phone: +1-303-497-7939 Phone: +1-303-497-3580
Fax: +1-303-497-5224 Fax: +1-303-497-5224
Web: http://www.boulder.nist.gov/div838/theory.html Web: http://FluidProperties.NIST.Gov
















Sheet 2: Examples

Text of user-specified values in the input cells is blue.










Macros must be enabled to calculate properties










See the help file in the Refprop graphical interface for additional information on calculating properties










Most units shown here use SI, see the help file for other units










The comments at the beginning of the Visual Basic code (press Alt-F11) tell how to change the working directories in order for REFPROP to locate the fluid files and the DLL






















Example:










Pure Fluid Calculations






















Fluid: argon









T P r h s Quality





K MPa mol/L J/mol J/mol-K





200 2 #VALUE! #VALUE! #VALUE! #VALUE!





100 2 #VALUE! #VALUE! #VALUE! #VALUE!





#VALUE! 1 #VALUE! #VALUE! 100 #VALUE!





#VALUE! 1 #VALUE! -4000,00 #VALUE! #VALUE!

















Two-Phase Calculations










Compute properties from given temperature and density.










T P r u h s Quality rSL rSV Surf. Tens.

K MPa mol/L J/mol J/mol J/mol-K mol/L mol/L mN/m

100 #VALUE! 15 #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE!













Calculate properties given only the saturation pressure.










#VALUE! 0,3 #VALUE! #VALUE! #VALUE!


















Calculate properties given only the saturation temperature.










120 #VALUE! #VALUE! #VALUE! #VALUE!








#VALUE! #VALUE! #VALUE!






Example:










Unit Conversions






















Unit system: cgs









T P r u h s Cv Cp w h l
K MPa g/cm3 J/g J/g J/g-K J/g-K J/g-K cm/s mPa-s mW/m-K
100 1 #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE!
























Example:










Mixture Calculations










System: 0,6 nitrogen + 0,05 argon + 0,35 oxygen





















nitrogen,0,6,argon,0,05,oxygen,0,35






















Components Mole fractions









nitrogen 0,60









argon 0,05









oxygen 0,35









Total 1,00

































Mixture properties:










r (100 K, 0.1 MPa) #VALUE! mol/L








r (100 K, 1 MPa) #VALUE! mol/L
































Example:










Predefined Mixture:
R410A.MIX




















Mixture properties:










r (300 K, 10 MPa) #VALUE! mol/L










Overview Summary Examples Sheet 1: Summary
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