CO2 powered mechanical device

[DaS Energy]

CO2 remains liquid to -47C then changes to gas at +31*C. CO2 at -47C has 10 bar pressure rising to 10,000 bar pressure at +80C. Steam at +600*C has 200 bar pressure, while CO2 has 200 Bar pressure at +50*C.  CO2 is now a common Refrigerant and achieves its cooling by an expansion chamber. This heat to force activity is ideal for mechanical purposes such as driving a turbine generating electricity.

[lancaIV]

Hello Aussi( ), I like the ideas to use ex-garbage -now worthfull recycleable resources- as energy carrier,but here  -your idea related- now my question : 10000 bar  how will this engine become evacuated/sealed ?

High "technical/physical" pressure has been my "mental" barrier to work out a real prototype of the Wilhelm Haeberle CO2-Medium-engine

https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=23&ND=3&adjacent=true&locale=en_EP&FT=D&date=19930805&CC=DE&NR=4243822A1&KC=A1#
Heat energy is converted at low temp. into usable mechanical energy. With the use of CO2 as the working medium, a reversal of the usual behaviour of the working medium sets in at the negative inversion region. The method is represented in the t-s Mollier diagram for CO2 and the sequence ABCD comprises two adiabates AB/CD and two isochores BC/DA. USE/ADVANTAGE - Engine which makes use of the principle of unlimited 'environmental heat' for the prodn. of mechanical energy.

http://translationportal.epo.org/emtp/translate/?ACTION=description-retrieval&COUNTRY=DE&ENGINE=google&FORMAT=docdb&KIND=A1&LOCALE=en_EP&NUMBER=3939780&OPS=ops.epo.org/3.2&SRCLANG=de&TRGLANG=en
Such heat pumps are because they have few moving parts, very simple in construction and hence inexpensive to manufacture. Crankcase with drive motor in hermetic - autoclave, vorgefullt/prefilled with air at about 10 to 50 bar results in large air mass and small machine by oil mist - circulation lubrication is achieved a lifelong maintenance-free. 

https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=22&ND=3&adjacent=true&locale=en_EP&FT=D&date=19940407&CC=DE&NR=4331904A1&KC=A1#
Mosaic Figure 2 : up to 2800 at(u) for this small engine

https://de.wikipedia.org/wiki/Technische_Atmosph%C3%A4re
1 at:= 10 mWS = 1 kp/cm² = 9,80665 N/cm² = 0,980665 bar = 98.066,5 Pa

seal concept: pressure at beginning 300 bar and end pressure 3000 bar
https://worldwide.espacenet.com/publicationDetails/originalDocument?CC=DD&NR=297219A5&KC=A5&FT=D&ND=3&date=19920102&DB=EPODOC&locale=en_EP#

[DaS Energy]

Hello lancaIV,

The unit is little more than an Absorption Fridge workings using a turbine as its choke point and a screw for Fridgerant return. Sealing the shaft is by rings -attached shaft- and housing - with no contact on rub point. Metal for 10,000 bar pressure needs be Stainless Steel. Lower pressure model is 10 Bar, 1 Litre per second, 1 Kw.