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EXERGY’s Radial OutflowTurbine (ROT) technologyis known worldwide for improvingthe efficiency and the performanceof Organic Rankine Cycle (ORC)geothermal binary power plants.

01/ Geothe r m al

01g eoth er mal

02heat recovery

03biomass

04csp

EXERGY’s Radial Outflow Turbine (ROT) technology is known worldwide for improving the efficiency and the performance of Organic Rankine Cycle (ORC) geothermal binary power plants.The high flexibility and efficiency of the ROT technology give the possibility to better exploit the numerous low temperature heat resources, as low as 90°C, that have until

now been untapped. This opens a series of new and profitable possibilities in power generation from sustainable resources.

From standard small modular units up to 50 MW tailored design plants, EXERGY guarantees best efficiency in the most diverse applications:

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ąą LOW/MEdiuM EnThaLpY

ąą MOduLaR sTEaM pLanTs

ąą MiXEd sTEaM and bRinE appLiCaTiOns COMbinEd CYCLE appLiCaTiOn (FLash and binaRY)

ąą WELL-hEad GEnERaTiOn

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1 preheater 2 Evaporator 3 Radial Outflow Turbine (ROT) 4 Recuperator 5 Generator 6 Condenser

Low Pressure high Pressure

The EXERGY ORC binary plants using the Radial Outflow Turbine (ROT), offer the following additional advantages and performances:

ąą up TO 6% addiTiOnaL EFFiCiEnCY OF ThE ROT TuRbinE OvER ThE aXiaL TuRbinE

ąą bETTER EXpLOiTaTiOn OF hiGh EnThaLpY REsOuRCEs Thanks TO MuLTipLE sTaGE On sinGLE

disk TuRbinE (up TO 7 sTaGEs)

ąą vERY COsT EFFECTivE, MuLTipLE pREssuRE LEvEL pLanT WiTh sinGLE TuRbinE disk. ThE

innOvaTivE RadiaL OuTFLOW TuRbinE dEsiGn Can OFFER 2 pREssuRE LEvELs WiTh a sinGLE

EXpandER, GivinG up TO 20% MORE pOWER Than COMpETiTORs

ąą LEss MainTEnanCE duE TO sinGLE disk and LOWER vibRaTiOns

ąą EXTREME FLEXibiLiTY FOR ChanGinG GEOThERMaL FLuid COndiTiOns, in TERMs OF FLOW,

TEMpERaTuREs and COnsTiTuEnTs, duE TO a hiGhER nuMbER OF sTaGEs

increasing power generation and profitability are two of EXERGY’s main goals.The designed and developed NCg exPaNder unit is a further improvement to offer additional performance for geothermal power plants.Each NCg exPaNder is designed and manufactured in the EXERGY workshops, so to perfectly match the performance needs and design details of the plant.

The MeChaNiCaL grouP module contains all service parts of the ROT (bearings, mechanical seals and lubrication system). simple to extract and replace, it allows for rapid changes without the need for fluid removal, or the risk of fluid loss.This makes the ROT the simplest and fastest turbine to service.

More Power wiTh The NCg exPaNder

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1EXaMpLE OF a GEOThERMaL pLanT WiTh

TWO pREssuRE LEvELs On TWO TuRbinEsEXaMpLE OF a GEOThERMaL pLanT WiTh TWO pREssuRE LEvELs On OnE TuRbinE

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