TPG works to recover energy from processes, or generate energy in a useful form as a product of other activities.

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Waste energy

The classic engineering cycles are the basis of much energy related research and development:

  • rankine cycles
  • stirling cycle
  • brayton cycle
  • refrigeration cycles

TP Group combines expertise in heat exchangers and advanced turbomachinery. TPG engineers design systems to exploit a heat source, particularly low grade or waste heat, to deliver useful energy or achieve other related benefits.

Highly efficient rotating machines using TPG's proprietary technologies are the basis for engineered systems that were previously unable to deliver sufficient economic output from the available energy.

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Hydrogen Purifiers

The TPG Proton Purifier produces ultra pure hydrogen by the process of selective diffusion through palladium alloy membranes. Hydrogen molecules are absorbed onto the surface of the palladium alloy membrane where they dissociate into separate hydrogen atoms. Electrons from the atoms are transferred into the electron cloud of the metal alloy releasing protons.

Pressure differential across the membrane forces the protons to pass through the alloy lattice. When they emerge from the other side, they combine with free electrons to reform hydrogen molecules.

The output hydrogen gas typically contains less than 1ppb oxygen and water vapour. Other impurities are below detection level.