Wellbores in Enhanced Geothermal System extends several kilometers from the ground surface, providing large heat transfer areas between the flowing fluid and the surrounding formations. Various techniques and approximations to model wellbore heat transfer have been presented in the literature. Most of the wellbore simulators assume steady one-dimensional flowing without considering heat transfe...

In this paper, we study the Joule–Thomson expansion of torus-like black hole in extended phase space, where cosmological constant is determined by pressure. It noteworthy that has a horizon toroidal topology, rather than spherical topology. We both inversion and isenthalpic curves holes $$T-P$$ plane find their intersection coincides with point distinguishes heat cooling process. Compared to Va...

Wepresent a revised formof the energy balance for the coupled thermodynamics of liquid water flowing in porousmedia and give examples of situations where a commonly used formulation based on transport of enthalpy leads to erroneous results. Assuming negligible contribution from kinetic energy as well as sources and sinks such as energy from radioactive decay, total energy conservation is reduce...

Many different devices and cycle arrangements can be used in part.ially cooling gas for helium liquefaction . With the exception of the Simon freeexpansion type liquefier , howeverwhich is suitable only for small-yield, batch productionall uch arrangements have a final stage at the lowest temperatures, in which a so-called Joule-Thomson proces takes place. This process may be considered to incl...

A feed forward neural network model is applied to forecast the saturation thermodynamic properties of propene. The method has been used to estimate thermodynamic properties including the heat capacity, Joule-Thomson coefficient, viscosity, thermal conductivity and surface tension. Conducted experimental investigations show applicability of the proposed approach. Comparing with other theoretical...