Abstract
In this chapter, performance assessment of a mini class turboprop engine is presented. Exergy analysis is used for this purpose on the basis of applicability on thermal systems. As a result of the component-based exergy analysis, relative irreversibility of the combustion chamber is higher relatively. Exergy destruction rates within the air compressor, combustion chamber and gas turbine components are 24.08 kW, 100.76 kW and 15.80 kW respectively. Additionally, exergy efficiencies of the components are 74.11, 69.68 and 98.99 % in order of air compressor, combustion chamber and gas turbine.
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Abbreviations
- \( \dot{E} \) :
-
Energy rate (kW)
- \( {\dot{\text{E}}\text{x}} \) :
-
Exergy rate (kW)
- \( {\dot{\text{I}}\text{P}} \) :
-
Improvement potential (kW)
- \( \dot{Q} \) :
-
Heat rate (kW)
- \( \dot{W} \) :
-
Work rate (kW)
- \( \dot{m} \) :
-
Mass flow rate (kg s−1)
- \( h \) :
-
Specific enthalpy (kJ kg−1)
- \( M \) :
-
Molar weight (kg kmol−1)
- \( N \) :
-
Mole number (kmol)
- \( P \) :
-
Pressure (kPa)
- \( R \) :
-
Gas constant (kJ kmol−1 K−1)
- \( \bar{R} \) :
-
Universal gas constant (kJ kmol−1 K−1)
- \( T \) :
-
Temperature (K)
- \( c \) :
-
Specific heat capacity (kJ kg−1 K−1)
- \( {\text{d}} \) :
-
Differential
- \( {\text{ex}} \) :
-
Specific exergy (MJ kg−1)
- \( {\text{ke}} \) :
-
Specific kinetic energy (kJ kg−1)
- \( {\text{pe}} \) :
-
Specific potential energy (kJ kg−1)
- \( s \) :
-
Specific entropy (kJ kg−1 K−1)
- \( \delta \) :
-
Fuel depletion rate
- \( \varepsilon \) :
-
Exergy efficiency
- \( \xi \) :
-
Productivity rate
- \( \chi \) :
-
Relative irreversibility
- \( 0 \) :
-
Ambient conditions
- \( {\text{heat}} \) :
-
Heat transfer related
- \( {\text{air}} \) :
-
Air
- \( {\text{dest}} \) :
-
Destruction
- \( {\text{fuel}} \) :
-
Fuel
- \( {\text{gas}} \) :
-
Combustion gaseous
- \( {\text{in}} \) :
-
Inlet
- \( j \) :
-
jth constituent of the combustion gas
- \( {\text{loss}} \) :
-
Loss
- \( {\text{mass}} \) :
-
Mass transfer related
- \( {\text{out}} \) :
-
Outlet
- \( p \) :
-
Constant pressure
- \( {\text{work}} \) :
-
Work related
- \( {\text{CH}} \) :
-
Chemical
- \( {\text{KE}} \) :
-
Kinetic
- \( {\text{PE}} \) :
-
Potential
- \( {\text{PH}} \) :
-
Physical
- \( {\text{TH}} \) :
-
Thermal
- AC:
-
Air compressor
- CC:
-
Combustion chamber
- GT:
-
Gas turbine
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Acknowledgments
The authors gladly thank the Faculty of Aeronautics and Astronautics, Anadolu University for supporting the study.
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Coban, K., Şöhret, Y., Sogut, M.Z., Turan, O., Karakoc, T.H. (2017). Exergy Approach to Evaluate Performance of a Mini Class Turboprop Engine. In: Zhang, X., Dincer, I. (eds) Energy Solutions to Combat Global Warming. Lecture Notes in Energy, vol 33. Springer, Cham. https://doi.org/10.1007/978-3-319-26950-4_23
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DOI: https://doi.org/10.1007/978-3-319-26950-4_23
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