Journal ArticleDOI
Analysis of power and entropy generation in a chemical engine
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TLDR
In this paper, a thermodynamic theory for a difficult class of chemical processes undergoing in irreversible power-producing systems that yield mechanical work and are characterized by multiple (vectorial) efficiencies is developed.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 2008-12-01. It has received 47 citations till now. The article focuses on the topics: Chemical process & Maximum power principle.read more
Citations
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Journal ArticleDOI
Literature Survey of Numerical Heat Transfer (2000–2009): Part II
TL;DR: A comprehensive survey of the literature in the area of numerical heat transfer (NHT) published between 2000 and 2009 has been conducted by as mentioned in this paper, where the authors conducted a comprehensive survey.
Journal ArticleDOI
A numerical investigation of the entropy generation in and thermodynamic optimization of a combustion chamber
H.R. Arjmandi,E. Amani +1 more
TL;DR: In this article, the authors simulate the turbulent combustion of a mixed bluff-body swirl stabilized flame in a gas turbine combustion chamber and investigate the effects of different parameters, including the swirl number, distance between the air and fuel nozzle which is called bluff size, equivalence ratio, inlet fuel flow rate, and the inlet air velocity, on the entropy generation.
Journal ArticleDOI
Complex chemical systems with power production driven by heat and mass transfer
TL;DR: In this article, the authors investigated power production in complex multireaction systems propelled by either uncoupled or coupled multicomponent mass transfer and applied an approach that implements balances of molar flows and reaction invariants to complex chemical systems with power production.
Journal ArticleDOI
Finite-rate thermodynamics of power production in thermal, chemical and electrochemical systems
TL;DR: In this paper, the generalized heat flux Q (involving the traditional heat flux q plus the product of temperature and the sum products of partial entropies and fluxes of species) plays in complex cases (solar, chemical and electrochemical) the same role as the heat q in pure heat engines, and the presented methodology is also applied to power limits in fuel cells as to systems which are electrochemical flow engines propelled by chemical reactions.
Journal ArticleDOI
General performance characteristics and parametric optimum bounds of irreversible chemical engines
TL;DR: In this article, a general cycle model of irreversible chemical engines, including non-isothermal chemical engines and other classes of heat engines, where finite-rate heat and mass transfers are considered, is established, and expressions for the power output and efficiency of the cycle system are derived.
References
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Book
Thermodynamic Optimization of Finite-Time Processes
TL;DR: In this paper, the authors present a mathematical model for limiting the possibilities of complex systems with a number of Heat-Mechanical Systems with one or more Reservoirs, as well as optimal control methods.
Book
Endoreversible thermodynamics of solar energy conversion
TL;DR: In this paper, the physical limits governing the conversion of solar energy into work, into wind energy, into electricity, and into chemical substances of high energy level, like carbohydrates, are discussed.
Journal ArticleDOI
On the Curzon–Ahlborn efficiency and its connection with the efficiencies of real heat engines
TL;DR: In this paper, it is shown that the Curzon-Ahlborn efficiency ηCA determines the efficiency at maximum power production of heat engines only affected by the irreversibility of finite rate heat transfer (endoreversible engines), but ηC is not the upper bound of the efficiencies of all heat engines.
BookDOI
Thermodynamics of energy conversion and transport
TL;DR: In this article, the authors present a statistical model of the photochemical solar energy conversion process and its relationship with the photon gas and its effect on the energy efficiency of the solar cells.