CraftEngine: An ORC heat engine designed for any challenge

Our CraftEngine is suitable with biomass boilers, gensets and incinerators, and a whole range of other applications that produce heat from as low as low as 80 °C. 

Highly flexible to fluctuations in temperature and load

What makes the CraftEngine unique is that it operates just as well on low-temperature ranges (80 to 130 °C) as high-temperature ranges (130 to 200 °C), and can easily and quickly adapt to fluctuations in the supply of heat or the demand for electricity without compromising on efficiency.

Designed and built by engine manufacturing industry

By using an automotive piston-type expander developed by AVL Schrick in Germany, the CraftEngine allows for reliable and flexible operation, low capital and maintenance costs and rapid return on investment. 

We will support you all the way

We help you with everything from assessment and installation to maintenance and repairs. Our especially trained engineers and service team are on call 24/7.


How our technology works

Heat

The CraftEngine uses heat from an external heat source in order to generate power. The heat is transferred to the CraftEngine via a heat exchanger. The CraftEngine works perfectly with combustion engines, biomass boilers, geothermal reservoirs (e.g. hot springs and geothermal wells) and solar thermal collectors.

CraftEngine

The CraftEngine operates on a so-called organic rankine cycle (ORC), which is similar to a steam engine process, but uses other fluids than water. These fluids have lower boiling points and other positive abilities that make them more suitable for low-temperature operations.

Electricity

Most heat sources with temperatures between 80 and 200 degrees Celcius can be used to generate electricity. Heat sources with higher temperatures can also be utilised but need to be reduced to about 200 degrees Celcius before entering the CraftEngine system. This is done quite simply through the use of heat exchangers.


  • Increases energy efficiency and reduces fuel costs.

  • Fully containerised solution. Easy to ship and integrate.

  • Environmental and economical re-use of waste heat at source.

  • Greatly reduces the need for landfills and waste management.

  • Greatly reduces costs of waste removal and transportation.

Performance example

CraftEngine CE40


  • CE40-design_final_small
  • Boundary conditions:

    Source temp in ℃

    Sink temp in ℃

    Typical values to be expected:

    Electrical power, net from CE in kW

    Electrical power, grid output in kW

    Thermal efficiency in %

    Electrical efficiency in %

    Grid efficiency in %

    Heat input in kW

    Dimensions (m):

    CE40

  • Waste heat low

    100

    20

     

    34-36

    28-30

    7-9

    6-8

    5-7

    100-600

    Length

    4,477

  • Temperature high

    200

    20

     

    43-45

    38-40

    10-12

    9-11

    8-10

    100-600

    Width / Height

    1,855 / 2,200

CraftEngine CE10

  • Boundary conditions:

    Source temp in ℃

    Sink temp in ℃

    Typical values to be expected:

    Electrical power, net from CE in kW

    Electrical power, grid output in kW

    Thermal efficiency in %

    Electrical efficiency in %

    Grid efficiency in %

    Heat input in kW

    Dimensions (m):

    CE10

  • Waste heat low

    100

    20

     

    5-8

    4.5-7

    7-9

    6-8

    5-7

    25-150

    Length

    1,63

  • Temperature high

    200

    20

     

    9-11

    8-10

    9-12

    8-11

    7-10

    25-150

    Width / Height

    1,07 / 1,82

Based on Kubota’s own long history as a piston engine manufacturer, we recognize and highly value Viking Heat Engines' piston-based ORC technology, especially its' durability and flexibility when it comes to load adaptation, as well as the possibility to scale it up in the future.

Kazuki Nishimura, Associate Manager, Water & Environment R&D Department at Kubota.

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