About R134a Tables Excel Add-In
The R134a Tables Excel Add-In library calculates 21 thermodynamic and transport properties
of R134a (1,1,1,2-Tetrafluoroethane). It allows 11 different combinations of input variables to
be used for calculations.
Input variables that can be used are:
- pressure,
- temperature,
- enthalpy,
- entropy,
- volume,
- internal energy,
- and quality (vapor mass fraction).
The library is fully integrated in Excel, and available functions can be used in the same way as any other Excel function.
R134a Tables Excel Add-In - Sample calculations in Excel
For thermodynamic properties the library uses new industrial formulation for R134a (1,1,1,2-Tetrafluoroethane),
formulated in Helmholtz energy. It is intended to be used for advanced technical applications.
Equation of state was presented in "Equations of State for Technical Applications" by R. Span and W. Wagner,
International Journal of Thermophysics, Vol.24, No.1, January 2003.
System Requirements
Operating system Windows 2000/XP/Vista.
Excel 97 or better.
User privilages
Installation and use of the library requires standard user privilages or better.
R134a Properties
The following termodynamic and transport properties can be calculated with R134a Tables Excel Add-In:
| Calculable properties in SI or E units - R134aTables Excel Add-In v1.1.1 |
| 1 |
Pressure |
| 2 |
Temperature |
| 3 |
Density |
| 4 |
Specific volume |
| 5 |
Specific enthalpy |
| 6 |
Specific entropy |
| 7 |
Specific internal energy |
| 8 |
Specific isobaric heat capacity |
| 9 |
Specific isochoric heat capacity |
| 10 |
Speed of sound |
| 11 |
Isentropic exponent |
| 12 |
Specific Helmholtz free energy |
| 13 |
Specific Gibbs free energy |
| 14 |
Compressibility factor |
| 15 |
Quality [vapor mass fraction] |
| 16 |
Isobaric volume expansion coefficient |
| 17 |
Isothermal compressibility |
| 18 |
Partial derivative (dP/dT)v |
| 19 |
Partial derivative (dP/dV)T |
| 20 |
Isothermal Joule-Thomson coefficient |
| 21 |
Joule-Thomson coefficient |
Range of Validity
The entire set of equations used by the R134aTables Excel Add-In library,
is defined by the following temperature and pressure range:
- 169.9 K < = T < = 523 K
- 0 < = p < = 75 MPa
Screenshots
The following screenshots demonstrate how to use the library.
1.(a) Start Excel and press "Insert Function" toolbar button.
1.(b) Alternatively, start Excel and press "Insert"->"Function" menu item.
2. Select a R134aTables library (SI or English units).
3. Select a function and press OK button.
4. Enter input parameters and press OK button.
NOTE: You don't have to put quotes around property ID they are inserted automatically.
That's it, result will be displayed in the selected cell.
Downloads
The setup program will automatically install the library in Excel.
R134a Tables Excel Add-In library
Quick reference documents
Price info
Prices subject to change without notice!
| R134aTables Excel Add-In version 1.1.1 |
| 1-4 licenses |
US $ 299.95 per copy |
| 5-10 licenses |
US $ 274.95 per copy |
| 11 > licenses |
US $ 249.95 per copy |
| Site License |
US $ 2995.00 |
Note: when purchasing a license you receive one year subscription for free.
The subscription includes updates and e-mail technical support.
If you have any questions, please don't hesitate to contact our sales:
sales@megawatsoft.com
General Information
For immediate access to R134aTables Excel Add-In, you may purchase and download our product using automated and secure online
ordering system. After ordering, you will receive a notification mail with further instructions, your
password (required during installation) and the retail version download location.
The Registration includes a free subscription program. Each Registered user will be receiving bug
fixes and technical support for the registered version within one year.
Shipping by the postal mail is not available.
For software registration we employ the services of one of the leading American
registering firms RegSoft.com.
Details about the company you can find at the RegSoft.com's website
http://www.regsoft.com/.
How to order
Internet ordering
Available ordering options:
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To view an order form, preview order options or buy specific number of licenses for
R134aTables Excel Add-In
click the button:
or to purchase a Site License click here:
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RegSoft.com's Voice Ordering System is an excellent alternative for registering software online
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will need following information:
Product ID: 71282.
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