Refrigerant properties on Mathcad

[Bisus-disabled]

Hi everybody,

it would be very useful for my job if it were possible to link a mathcad worksheet with "something" (a library) containing the thermodynamical properties of different refrigerants (something similar to NIST RefProp)

Does anybody know if there's something available?

Thanks
Alberto

[ValeryOchkov]

I have on the MAS Refrigerant properties
One of them
http://twtmas.mpei.ac.ru/mas/Worksheets/Therm/R_134a.mcd
Val
http://twt.mpei.ac.ru/ochkov/v_ochkov.htm

[Bisus-disabled]

Thank you very much Valery,

I would have two questions:

- how do you recall the properties? did you implement a look-up table (with one input point, i.e. T or p) or did you implement interpolating functions for the different properties (density, enthalpy) etc?

- do you also have something for points that are in the superheated vapour state?

Thank you very much once more

Alberto

[ValeryOchkov]

On 3/6/2009 8:20:04 AM, Bisus wrote:
>Thank you very much Valery,
>
>I would have two questions:
>
>- how do you recall the
>properties? did you implement
>a look-up table (with one
>input point, i.e. T or p) or
>did you implement
>interpolating functions for
>the different properties
>(density, enthalpy) etc?
Both
>- do you also have something
>for points that are in the
>superheated vapour state?
S�
Vedi anche - http://twt.mpei.ac.ru/ochkov/VPU_Book_New/mas/NRE_5_5/index_en.html
>Thank you very much once more
>
>Alberto



Val
http://twt.mpei.ac.ru/ochkov/v_ochkov.htm