The Electrical Heating of a Conductor Due to the Joule-thomson Effect
نویسنده
چکیده
Existence of a weak solution is established for the initial-boundary value problem for the system ff-iut-div(O(u)7u)+r(u)a(u)TuTv=a(u)]Tvl2,div(a(u)Vv)=O. The question of uniqueness is also considered in some special cases.
منابع مشابه
Predictions of the Joule-Thomson Inversion Curve for Water and Methanol from the LJ-SAFT EOS
In this work, we have calculated the Joule-Thomson inversion curve of two important associating fluids, namely water and methanol, from the SAFT equation of state. Comparisons with the available experimental data, for water and methanol indicate that this molecular based equation of state gives good prediction of the low temperature branch; but, unfortunately, due to lack of isenthalpic dat...
متن کاملA Correlation for the Prediction of the Adiabatic Joule-Thomson Coefficient of Pure Gases and Gas Mixtures
A correlation based on the general form of cubic equations of state has been derived. This equation provides a convenient mathematical form of the Joule-Thomson coefficient in terms of the state variable V and T. The Joule-Thomson coefficient calculated by this correlation has been compared with experimental data. It has been shown that the Redilich-Kwang equation of state is a suitable equ...
متن کاملHow to Design a Cryogenic Joule-Thomson Cooling System: Case Study of Small Hydrogen Liquefier
Heat exchangers are the critical components of refrigeration and liquefaction processes. Selection of appropriate operational conditions for cryogenic recuperative heat exchanger and expansion valve operating in Joule-Thomson cooling system results in improving the performance and efficiency. In the current study, a straightforward procedure is introduced to design an efficient Joule-Thomson co...
متن کاملDeveloping a Novel Temperature Model in Gas Lifted Wells to Enhance the Gas Lift Design
In the continuous gas lift operation, compressed gas is injected into the lower section of tubing through annulus. The produced liquid flow rate is a function of gas injection rate and injection depth. All the equations to determine depth of injection assumes constant density for gas based on an average temperature of surface and bottomhole that decreases the accuracy of gas lift design. Also g...
متن کاملTransient thermal study of recuperative tube in tube heat exchanger operating in refrigeration system using experimental test and mathematical simulation
Joule-Thomson cooling systems are used in refrigeration and liquefaction processes. There are extensive studies on Joule-Thomson cryogenic systems, but most of them coverage steady state conditions or lack from experimental data. In the present work, transient thermal behavior of Joule-Thomson cooling system including counter current helically coiled tube in tube heat exchanger, expansion valve...
متن کامل