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Scuderi cycle

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Thermodynamics
The classical Carnot heat engine
Specific heat capacity c = {\displaystyle c=} {\displaystyle c=}
T {\displaystyle T} {\displaystyle T} S {\displaystyle \partial S} {\displaystyle \partial S}
N {\displaystyle N} {\displaystyle N} T {\displaystyle \partial T} {\displaystyle \partial T}
Compressibility β = {\displaystyle \beta =-} {\displaystyle \beta =-}
1 {\displaystyle 1} {\displaystyle 1} V {\displaystyle \partial V} {\displaystyle \partial V}
V {\displaystyle V} {\displaystyle V} p {\displaystyle \partial p} {\displaystyle \partial p}
Thermal expansion α = {\displaystyle \alpha =} {\displaystyle \alpha =}
1 {\displaystyle 1} {\displaystyle 1} V {\displaystyle \partial V} {\displaystyle \partial V}
V {\displaystyle V} {\displaystyle V} T {\displaystyle \partial T} {\displaystyle \partial T}
  • Internal energy
    U ( S , V ) {\displaystyle U(S,V)} {\displaystyle U(S,V)}
  • Enthalpy
    H ( S , p ) = U + p V {\displaystyle H(S,p)=U+pV} {\displaystyle H(S,p)=U+pV}
  • Helmholtz free energy
    A ( T , V ) = U T S {\displaystyle A(T,V)=U-TS} {\displaystyle A(T,V)=U-TS}
  • Gibbs free energy
    G ( T , p ) = H T S {\displaystyle G(T,p)=H-TS} {\displaystyle G(T,p)=H-TS}

A Scuderi cycle is a thermodynamic cycle that is constructed out of the following series of thermodynamic processes:[1]

  • A-B and C-D (TOP and BOTTOM of the loop): a pair of quasi-parallel adiabatic processes
  • D-A (LEFT side of the loop): a positively sloped, increasing pressure, increasing volume process
  • B-C (RIGHT side of the loop): an isochoric process

The adiabatic processes are impermeable to heat: heat flows rapidly into the loop through the left expanding process, resulting in increasing pressure while volume is increasing; some of it flows back out through the right depressurizing process; the remaining heat does the work.

See also

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References

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  1. "Scuderi Group Will Present Results from Split-Cycle Prototype Testing at IAA". Green Car Congress. 2009年09月08日. Retrieved 2010年09月22日.
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