ETIMOLOGIA DA PALAVRA JOULE-THOMSON EFFECT
Named after James Prescott Joule and Sir William Thomson, 1st Baron Kelvin.
O QUE SIGNIFICA JOULE-THOMSON EFFECT EM INGLÊS
Efeito Joule-Thomson
Na termodinâmica, o efeito Joule-Thomson ou o efeito Joule-Kelvin ou o efeito Kelvin-Joule ou a expansão Joule-Thomson descrevem a mudança de temperatura de um gás ou líquido quando é forçada através de uma válvula ou bujão poroso enquanto é mantida isolada de modo que não exista calor trocados com o meio ambiente. Este procedimento é chamado de processo de aceleração ou processo Joule-Thomson. À temperatura ambiente, todos os gases, exceto o hidrogênio, o hélio e o néon, após a expansão pelo processo Joule-Thomson. O efeito tem o nome de James Prescott Joule e William Thomson, 1º Barão Kelvin, que descobriu isso em 1852. Seguiu o trabalho anterior da expansão Joule on Joule, no qual um gás sofre expansão livre no vácuo e a temperatura permanece inalterada, se o gás é ideal. O processo de aceleração é de maior importância técnica. É no centro das máquinas térmicas, como frigoríficos, aparelhos de ar condicionado, bombas de calor e liquefatos. Além disso, a aceleração é um processo fundamentalmente irreversível.
definição de Joule-Thomson effect no dicionário inglês
A definição do efeito Joule-Thomson no dicionário é uma mudança na temperatura de um gás termicamente isolado quando for forçado através de um pequeno orifício ou de um material poroso. Para cada gás há uma temperatura de inversão acima da qual a mudança é positiva e abaixo da qual é negativa. Também chamado de efeito Joule-Kelvin.
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10 LIVROS EM INGLÊS RELACIONADOS COM «JOULE-THOMSON EFFECT»
Descubra o uso de
Joule-Thomson effect na seguinte seleção bibliográfica. Livros relacionados com
Joule-Thomson effect e pequenos extratos deles para contextualizar o seu uso na literatura.
1
Termodinamičeskie Svojstva Etilena
The experimental data on ethylene's Joule-Thomson effect (Table 1.5) were
obtained in a relatively narrow range of variables. Different kinds of Joule-
Thomson effects (integral adiabatic or isothermal) were also measured in
different studies.
Vi︠a︡cheslav Vladimirovich Sychev, Theodore B. Selover,
1987
2
The Principles of Chemical Equilibrium: With Applications in ...
The Joule-Thomson effect A well.known experiment, first carried out by Joule and
Thomson in the period 1852-62, consists in passing a steady stream of gas
through a thermally insulated tube in which there is a throttle valve or porous plug
.
Kenneth George Denbigh,
1981
3
The
Joule-
Thomson Effect for Air at Moderate Temperatures ...
This is a reproduction of a book published before 1923.
Llewellyn Griffith Hoxton,
2012
4
Miniature
Joule-
Thomson Cryocooling: Principles and Practice
Brillantinov, N.A., “Measurement of the Joule-Thomson effect of air and oxygen at
low pressures”, Zhur. Tekh. Fiz., Vol. 18, p. 1113, (1948), cited in Chem. Abstr,
Vol. 50, p. 4301a. Roebuck, J.R. and Osterberg, H., “The Joule-Thomson effect in
...
Ben-Zion Maytal, John M. Pfotenhauer,
2012
5
Academic Press Dictionary of Science and Technology
Joule, James Prescott [jool; joul] 1818-1889, English physicist; formulated Joule's
law; discovered the mechanical equivalent of heat and the first law of
thermodynamics; demonstrated the Joule-Thomson effect. joule Metrology, the
basic unit ...
Christopher G. Morris,
1992
6
Chemical Thermodynamics
The Joule-Thomson effect is also utilized in refrigeration devices. 5-9 Partial
Molar Quantities Give the Dependence of the Extensive Thermodynamic State
Functions on the Composition The thermodynamic analysis of solutions is
facilitated by ...
7
Excel With Objective Questions In Chemistry
JOULE THOMSON EFFECT When a compressed gas is allowed to expand
adiabatically through a small orifice its temperature falls. This phenomenon is
known as Joule Thomson effect. The decrease in temperature is attributed to the
fact that ...
Prof. S. K. Khanna, Dr. N. K. Verma, Dr. B. Kapila,
2006
8
The Kinetic Theory of Gases
The Joule-Thomson Effect Interpreted by Van der Waals' Equation. — The values
of the constants a and 6 of Van der Waals' equation may be determined in still
another fashion. This is by means of the so-called "porous-plug" experiment of ...
9
Principles of Physical Chemistry
20.4.2 Joule–Thomson Effect The cooling of a gas upon expansion at constant
pressure is called the Joule–Thomson effect and is of practical utility in the
liquifaction of gases. Figure 20.10 illustrates a Joule– Thomsonexpansion.
Hans Kuhn, Horst-Dieter Försterling, David H. Waldeck,
2009
1.6 JOULE-THOMSON'S EFFECT (ADIABATIC EXPANSION OF A REAL GAS)
When a real gas is allowed to pass adiabatically from a high pressure to a low
pressure region through a porous plug or a nozzle, expansion takes place.
N. B. Singh, Shiva Saran Das, A. K. Singh,
2009
6 NOTÍCIAS NAS QUAIS SE INCLUI O TERMO «JOULE-THOMSON EFFECT»
Conheça de que se fala nos meios de comunicação nacionais e internacionais e como se utiliza o termo
Joule-Thomson effect no contexto das seguintes notícias.
Quickly Chill Your Drinks With An Upside-Down Compressed Air Can
The rapid decompression causes the gas to cool via the Joule-Thomson effect. Then the gas cools the coke via convective heat transfer, driven ... «Lifehacker Australia, ago 14»
Alton Brown charms and cooks his way across the Fox stage
... the extinguisher and the pump were turned on and he and a volunteer from the audience used the Joule-Thomson effect (from physics class) ... «STLtoday.com, fev 14»
Researchers look underground and find a promising energy storage …
... to go from a high-pressure environment to a low-pressure environment, it becomes very cold in what physicists call the Joule-Thomson effect. «Environment & Energy Publishing, mai 13»
Joule-Thomson Thermal Stages from MMR Technologies
Cooled gas is supplied to pre-cool the incoming gas in a heat exchanger so as to intensify the Joule-Thomson effect. In devices resembling a matchbox size, it is ... «Azom.com, fev 13»
Electronics like it cold, and 30 K cryocooler delivers
The reason for using two different gases is that the Joule-Thomson effect only works (i.e., produces a cooling effect) if the expanding gas is ... «Phys.Org, jan 13»
The Air Car Rides Again?
Industrial gas companies have long produced liquid gases using what's called the Joule-Thomson effect. Essentially, it works by compressing ... «Popular Mechanics, nov 12»