TC-E920 Steam expander

A wet steam tolerant, multiphase expander.

Expansion through turbines has been the most common way of creating rotation, power and electricity. Throughout the “mechanical age” most electricity is created by feeding superheated steam through a turbine , creating rotation that subsequently produces electricity in a generator. Billions have been invested in research for optimizing turbines, and efficiency has improved over time. Still, one large challenge remains; turbines require that the gas / steam does not contain liquid of any significance as this ruptures the technology.

Tocircle has developed a multi-phase expander which can handle any mix of gas and liquid through the expansion. This provides significant simplification and reduced investments when designing expansion applications.

Technical data
Inlet steam pressure11 - 20 bar(g)
Inlet steam qualitywet/superheated
Inlet steam tempmax. 230 oC
Expansion ratio1:2.5 to 1:4.5
Capacity6.8 t/h at 15 to 3 bar(g) expansion
Output power at shaftup to 400kW
Weight1.92 t
Nominal speedmax. 1000 rpm
Dimensionslength 1383 mm, diam. 800 mm
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