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​HIGH-EFFICIENCY ENGINE DRIVEN BY HEAT

 

 

​Our technology is an alternative to conventional and cost-uneffective heat conversion technologies. Due to lack of complex kinematics and multiple energy conversion steps, heat can be efficiently used to provide electricity production, direct pumping or compression.

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UPTHERMO ISOBARIC ENGINE

The engine operates on

a low-boiling point liquid which, due to evaporation in isobaric conditions increases its volume, causing the movement of the liquid piston. The hydraulic system convert the direct movement of the piston into useful work.

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​ULTRALOW TEMPERATURE
 

The use of a low-boiling working point liquid allows heat to be converted into work at a temperature as low as
40 degrees Celsius. In turn, the simplicity of the engine design contributes to its high reliability and short payback time.

​ISOBARIC PROCESS

 

An isobaric engine differs from traditional piston engines, turbines in that there is no polytropic expansion of the gas with a pressure drop during the transformation, and work is performed at a constant pressure during the isobaric transformation.

SCALE

Our engine uses an isobaric process. It has a much lower number of moving parts and complex geometries than traditional engines. As a result, the design of the engine is easily scalable and thus it is possible to obtain powers from several kilowatts to megawatts.

HOW IT WORKS?

​The working cycle consists of four successive thermodynamic transformations

Close to Carnot efficiency

Isobaric work cycles show excellent efficiency - up to 82% Carnot efficiency at ultra-low grade heat source in temperatures range 40-180 °C

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STAGE 4-1

ISOCHORIC HEAT OF THE WORKING FLUID

Occurs when the liquid piston is in the upper position, heat is supplied
to the working medium, and the pressure increases until it reaches the discharge pressure. This process does not generate mechanical work.

STAGE 1-2

​ISOBARIC EVAPORATION OF THE WORKING FLUID

Occurs when the pressure in the cylinder reaches the working pressure in the system. During the process, the working fluid evaporates until the liquid mirror in the cylinder reaches a bottom level. The process generates mechanical work.

UNIQUE PRODUCT

- Direct heat to work by hydraulic process 

- Two working fluids

- No other technology achieves higher  

  Carnot efficiency 

- Thermosiphon heat transfer

- Liquid pistons 

- No moving parts

- Extremely low maintenance costs

- Highly scalable

- Patented technology

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CLOSED THERMOSIPHON SYSTEM

Thermosiphon causes heat transfer through evaporation and condensation, which ensures high values of heat transfer coefficients and enables the use of a small heat exchange surface.

​LIQUID PISTON
 

In order to reduce the friction as well as unreliable and defective sealing solutions, we use several working fluids in one working space.

HYDRAULIC CONVERSION
 

​Thanks to the use of off-the-shelf hydraulic components, the proposed technology is cheap and reliable.

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