Hybrid turbine generation system

Abstract

The present disclosure provides a turbine generation system, including a first turbine part that is configured to have a first impeller rotated by an introduced fluid, and a second turbine part that is configured to have a second impeller rotated by steam, evaporated within a cycle unit, in which the fluid circulates along a rankine cycle, wherein the fluid, which is discharged from the first turbine part after rotating the first impeller, is heat-exchanged with a refrigerant of an evaporator disposed in the cycle unit.

What is claimed is: 
     
         1 . A turbine generation system, comprising:
 a first turbine part that is configured to have a first impeller rotated by an introduced fluid; and   a second turbine part that is configured to have a second impeller rotated by steam, evaporated within a cycle unit, in which the fluid circulates along a rankine cycle,   wherein the fluid, which is discharged from the first turbine part after rotating the first impeller, is heat-exchanged with a refrigerant of an evaporator disposed in the cycle unit.   
     
     
         2 . The system of  claim 1 , wherein a generator is disposed between the first impeller and the second impeller. 
     
     
         3 . The system of  claim 2 , wherein the generator comprises a single rotating shaft having both ends coupled with the first impeller and the second impeller, respectively. 
     
     
         4 . The system of  claim 3 , wherein the single rotating shaft is supported by a foil bearing. 
     
     
         5 . The system of  claim 4 , wherein the foil bearing comprises first and second foil bearings disposed with a predetermined spacing therebetween, and a stator made of a coil is located between the first and second foil bearings. 
     
     
         6 . The system of  claim 4 , wherein a magnet is disposed within the single rotating shaft. 
     
     
         7 . The system of  claim 1 , further comprising a burner connected to an introduction opening of the first turbine part, to heat the fluid introduced into the first turbine part. 
     
     
         8 . The system of  claim 1 , wherein the first impeller and the second impeller have the same shape. 
     
     
         9 . The system of  claim 1 , wherein the cycle unit comprises a condenser that is configured to condense the fluid evaporated in the evaporator, and the second turbine part is disposed between the evaporator and the condenser. 
     
     
         10 . The system of  claim 1 , wherein the rankine cycle is an organic rankine cycle which receives thermal energy supplied from the fluid discharged from the first turbine part. 
     
     
         11 . The system of  claim 10 , wherein a heat exchanger is disposed to be connected to the evaporator of the organic rankine cycle, and
 wherein a refrigerant circulating along the heat exchanger and the evaporator is heat-exchanged in the heat exchanger with the fluid discharged from the first turbine part.   
     
     
         12 . A turbine generation system comprising:
 a first turbine part that is configured to have a first impeller rotated by an introduced fluid; and   a second turbine part that is configured to have a second impeller rotated by steam, evaporated within a cycle unit, in which the fluid circulates along a rankine cycle,   wherein the first impeller and the second impeller are mounted to both ends of a single rotating shaft, respectively.   
     
     
         13 . The system of  claim 12 , wherein the fluid, which is discharged from the first turbine part after rotating the first impeller, is heat-exchanged with a refrigerant of an evaporator disposed in the cycle unit.