The efficient use of available energy in hydrocarbon extraction processes is essential to reducing overall emissions the petroleum industry. inefficient design an process leads higher per unit mass recovery. Fluid friction and heat transfer are irreversible that vital decreasing system’s operational efficiency. To reduce these losses reservoir production’s life, contributing factors such as cha...

We consider a pair of correlated processes {Zn}n=−∞ and {Sn}n=−∞, where the former is observable and the latter is hidden. The uncertainty in the estimation of Sn upon the finite past history of Zn−1 0 is H(Sn|Z n−1 0 ) which is a sequence of n. The limit of Cesaro mean of this sequence is called the estimation entropy. We show that the estimation entropy is the long run average entropy of the ...

We establish a Hessian geometric structure in chemical thermodynamics, which describes reaction networks (CRNs) with equilibrium states. In our setup, the ideal gas assumption and mass action kinetics are not required. The existence uniqueness condition of state is derived by using Legendre duality inherent to structure. entropy production during relaxation can be evaluated Bregman divergence. ...

Abstract We use a linkage between gravitation and electrodynamics the author shared with Unnishkan . In doing so, we find that a time step minimization procedure given by Peebles may be given further definition as to fine tune an NLED contribution to time step, which the author then links to gravity due to adopting the fifth force formalism of Fishbach . The rest of the document takes, then a d...

A general circulation model (GCM) of intermediate complexity (Planet Simulator) is subjected to an analysis of the entropy budget and its sensitivity. The entropy production is computed directly based on temperature and temperature tendencies and estimated indirectly based on boundary fluxes. For indirect estimates, the model shows reasonably good agreement with observations. The direct computa...

The entropy production (inside the volume bounded by a photosphere) of main-sequence stars is calculated based on B–V photometry data. The entropy-production distribution function and the dependences of entropy production on temperature and luminosity are obtained for these stars for the first time. A very small range of variation of specific (per volume) entropy production discovered for main-...

We derive an Itô stochastic differential equation for entropy production in nonequilibrium Langevin processes. Introducing a random-time transformation, entropy production obeys a one-dimensional drift-diffusion equation, independent of the underlying physical model. This transformation allows us to identify generic properties of entropy production. It also leads to an exact uncertainty equalit...