Regenerative cooling

Thermodynamics
Branches Classical · Statistical · Chemical Equilibrium / Non-equilibrium Thermofluids
Laws Zeroth · First · Second · Third
Systems State: Equation of state Ideal gas · Real gas Phase 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 Property diagrams Intensive and extensive properties State functions: Temperature / Entropy (intro.) † Pressure / Volume † Chemical potential / Particle no. † († Conjugate variables) Vapor quality Reduced properties Process functions: Work · Heat
Material properties Specific heat capacity  c = T N Compressibility  β = − 1 V Thermal expansion  α = 1 V Property database
Equations Carnot's theorem Clausius theorem Fundamental relation Ideal gas law Maxwell relations Table of thermodynamic equations
Potentials Free energy · Free entropy 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 and culture Philosophy: Entropy and time · Entropy and life Brownian ratchet Maxwell's demon Heat death paradox Loschmidt's paradox Synergetics History: General · Heat · Entropy · Gas laws Perpetual motion Theories: Caloric theory · Vis viva Theory of heat Mechanical equivalent of heat Motive power Publications: "An Experimental Enquiry Concerning ... Heat" "On the Equilibrium of Heterogeneous Substances" "Reflections on the Motive Power of Fire" Timelines of: Thermodynamics · Heat engines Art: Maxwell's thermodynamic surface Education: Entropy as energy dispersal
Scientists Daniel Bernoulli Sadi Carnot Benoît Paul Émile Clapeyron Rudolf Clausius Hermann von Helmholtz Constantin Carathéodory Pierre Duhem Josiah Willard Gibbs James Prescott Joule James Clerk Maxwell Julius Robert von Mayer William Rankine John Smeaton Georg Ernst Stahl Benjamin Thompson William Thomson, 1st Baron Kelvin John James Waterston
v d e

Regenerative cooling is a method of cooling gases in which compressed gas is cooled by allowing it to expand and thereby taking 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

1857 - Siemens introduced the Regenerative cooling concept with the Siemens cycle, in 1895 independent from each other William Hampson in England and Carl von Linde in Germany obtained patents for the Hampson-Linde cycle to liquefy air using the Joule Thomson expansion process and regenerative cooling^[2] On 10 May 1898, James Dewar used regenerative cooling to become the first to statically liquefy hydrogen.

See also

• Cryocooler
• Displacer
• Fluid mechanics
• Regenerative cooling (rocket)
• Regenerative heat exchanger
• Regenerator
• Thermodynamic cycle
• Timeline of hydrogen technologies

References

External links

• Regenerative Coolers

Regenerative Cycle Video