Regenerative cooling

For regenerative cooling in rockets, see Regenerative cooling (rocket).

Branches

Equilibrium / Non-equilibrium

State
Equation of state Ideal gas Real gas State of matter Equilibrium Control volume Instruments
Processes
Isobaric Isochoric Isothermal Adiabatic Isentropic Isenthalpic Quasistatic Polytropic Free expansion Reversibility Irreversibility Endoreversibility
Cycles
Heat engines Heat pumps Thermal efficiency

System properties

Note: Conjugate variables in italics

Functions of state
Property diagrams Intensive and extensive properties
Temperature / Entropy (introduction) Pressure / Volume Chemical potential / Particle number Vapor quality Reduced properties
Process functions
Work Heat

Material properties

Property databases

Specific heat capacity

c=

$T$	$\partial S$
$N$	$\partial T$

Compressibility

\beta=-

$1$	$\partial V$
$V$	$\partial p$

Thermal expansion

\alpha=

$1$	$\partial V$
$V$	$\partial T$

Equations

Potentials

Internal energy
$U(S,V)$
Enthalpy
$H(S,p)=U+pV$
Helmholtz free energy
$A(T,V)=U-TS$
Gibbs free energy
$G(T,p)=H-TS$

History
Culture

History
General Heat Entropy Gas laws "Perpetual motion" machines
Philosophy
Entropy and time Entropy and life Brownian ratchet Maxwell's demon Heat death paradox Loschmidt's paradox Synergetics
Theories
Caloric theory Theory of heat Vis viva ("living force") Mechanical equivalent of heat Motive power
Key publications
"An Experimental Enquiry Concerning ... Heat" "On the Equilibrium of Heterogeneous Substances" "Reflections on the Motive Power of Fire"
Timelines
Thermodynamics Heat engines
Art Education
Maxwell's thermodynamic surface Entropy as energy dispersal

Scientists

Book:Thermodynamics

Regenerative cooling is a method of cooling gases in which compressed gas is cooled by allowing it to expand and thereby take heat from the surroundings. The cooled expanded gas then passes through a heat exchanger where it cools the incoming compressed gas.^[1]

Regenerative cycles

Stirling cycle
Gifford-McMahon
Vuillemier
Pulse tube refrigerator

History

In 1857, Siemens introduced the regenerative cooling concept with the Siemens cycle.^[2] In 1895, William Hampson in England^[3] and Carl von Linde in Germany^[4] independently developed and patented the Hampson-Linde cycle to liquefy air using the Joule Thomson expansion process and regenerative cooling.^[5] On 10 May 1898, James Dewar used regenerative cooling to become the first to statically liquefy hydrogen.

References

â†‘ Cryogenic microcooling Pag.25
â†‘ Charles William Siemens, "Improvements in refrigerating and producing ice, and in apparatus or machinery for that purpose", British patent no. 2064 (filed: July 29, 1857).
â†‘ W. Hampson, "Improvements relating to the progressive refrigerating of gases", British patent 10,165 (filed: May 23, 1895).
â†‘ Linde, Carl, "Verfahren zur VerflÃ¼ssigung atmosphÃ¤rischer Luft oder anderer Gase" (Method for the liquefication of atmospheric air or other gases), German patent 88,824 (filed: June 5, 1895).
â†‘ Hydrogen through the Nineteenth Century

External links

Regenerative Coolers

Thermodynamic cycles

External combustion

Without phase change (hot air engines)	Bell Coleman Brayton / Joule Carnot Ericsson Stirling Stirling (pseudo / adiabatic) Stoddard

With phase change	Kalina Hygroscopic Rankine (Organic Rankine) Regenerative

Internal combustion

Mixed

Refrigeration

Uncategorized

Regenerative Cycle Video

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Regenerative cooling

Regenerative cycles

History

See also

References

External links