Estimating refrigerant charge

[Argus]

It's already been done.

Look at the excel calculator on the DEFRA site. It is intended to estimate the contained charge within a system in accordance with the EU regulations on Fluorinated Gases.

http://www.defra.gov.uk/environment/...fgas/index.htm

Containment assumptions have already been refined for the component parts of a system.



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[lana]

Thanks a lot Argus.
Appreciate that.

[lana]

Dear Argus,
I tried the programme but it doesn't take into account the volume of evaporator and the condenser?
Also the suction and discharge line volumes.

Any comments?
Cheers

[Argus]

Yes, I think it does. Please read the data list in the Introduction tab.

The author has given a choice of common types of heat exchangers and piping arrangements and made assumptions on the partial phase containment in each case.

It is not a definitive tool, but one designed to give a close indication of the containment of most common system types.

The calculator was developed for the UK F Gas Stakeholders’ group who are advising on the EU Fluorinated gas regulation. This Regulation demands regular leakage inspection of all systems containing F Gases, above 3 kg, so a containment calculator is essential.

I won’t place the author’s details on the open web without his permission, but you can contact him through DEFRA or Enviros.

[lana]

Thanks Argus I will check.
Cheers