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Small Scale Expander for Geothermal.

Small Scale Expander for Geothermal.

(OP)
I am designing a third world heat engine. My team is looking at retrofitting a turbine or possibly a scroll compressor into a scroll expander. Has anyone on here had hands on experience with those retrofits? I can't find a manufacture that sells scroll/screw expanders for the size I need. I would rather purchase one or make one myself then hack one together, reliability is important and this is a time critical project.

Also, I am trying to find a pump that will work with pressurized liquid r134a. Any ideas on that?

Thanks

Colin

RE: Small Scale Expander for Geothermal.

There are commercial scroll units (P&W) and screw (Electrotherm) on the market.
For contact info look at the geothermal.org web site.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

RE: Small Scale Expander for Geothermal.

Stop at Ormat.com  see the list of projects there.   Do not do retrofits but designing the exact unit that produce the maximum power from the given heatsource.  
R-134 is a Freon  right? do not think you want to use it  or base a unit on it   

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