Heat transfers at low temperature

General
Heat transfers at low temperature

Authors : Bertrand BAUDOUY, Gérard DEFRESNE, Patxi DUTHIL, Jean-Pierre THERMEAU

Review date: October 28, 2019 | Lire en français

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1. General

1.1 Objectives

Cooling and maintaining a system at low temperature requires the use of a thermodynamic device operating in refrigerator mode on the principle of a heat pump: the consumption of work W (in Joule) enables the transfer of a certain quantity of heat Q (in Joule) from a cold source at temperature T_F to a hot source at temperature T_C.

Applying the first and second principles of thermodynamics gives the relationship between work and heat:

W = \frac{1}{C O P} | Q | ⩾ \frac{T_{C} - T_{F}}{T_{F}} | Q |

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Bibliography

(1) - VAN SCIVER (S.W.) - Developments in He II heat transfert and applications to superconducting magnets. - Fast RW, editor, Plenum Press, 27, p. 375-398 (1982).
(2) - KAPITZA (P.L.) - The study of heat transfer on He II. - USSR Journal of Physics, p. 4181 (1941).

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General Heat transfers at low temperature

1. General

1.1 Objectives

Bibliography

General
Heat transfers at low temperature