Interactive comment on “ On the validity of representing hurricanes as Carnot heat engine ”
نویسنده
چکیده
As detailed below, we respect the work of Dr. Makarieva and co-authors (Makarieva et al., 2008), but we have come to similar conclusions as Dr. Haynes and decided not to accept the manuscript for final publication in ACP. The decision is supported by the entire ACP executive committee, but for clarity and simplicity the following editorial report is formulated from my perspective as the chief-executive editor who led the re-assessment.
منابع مشابه
Hurricane thermodynamics: critique
On the validity of representing hurricanes as Carnot heat engine A. M. Makarieva, V. G. Gorshkov, and B.-L. Li Theoretical Physics Division, Petersburg Nuclear Physics Institute, 188300, Gatchina, St. Petersburg, Russia CAU-UCR International Center for Ecology and Sustainability, University of California, Riverside, CA 92521, USA Received: 7 May 2008 – Accepted: 10 July 2008 – Published: 19 Sep...
متن کاملSqueezed Thermal Reservoirs as a Resource for a Nanomechanical Engine beyond the Carnot Limit
The efficient conversion of thermal energy to mechanical work by a heat engine is an ongoing technological challenge. Since the pioneering work of Carnot, it has been known that the efficiency of heat engines is bounded by a fundamental upper limit—the Carnot limit. Theoretical studies suggest that heat engines may be operated beyond the Carnot limit by exploiting stationary, nonequilibrium res...
متن کاملMolecular kinetic analysis of a finite-time Carnot cycle
We study the efficiency at the maximal power ηmax of a finite-time Carnot cycle of a weakly interacting gas which we can regard as a nearly ideal gas. In several systems interacting with the hot and cold reservoirs of the temperatures Th and Tc, respectively, it is known that ηmax = 1− √ Tc/Th which is often called the Curzon-Ahlborn (CA) efficiency ηCA. For the first time numerical experiments...
متن کاملAn Investigation on the Effects of Gas Pressure Drop in Heat Exchangers on Dynamics of a Free Piston Stirling Engine
This paper is devoted to study the effects of pressure drop in heat exchangers on the dynamics of a free piston Stirling engine. First, the dynamic equations governing the pistons as well as the gas pressure equations for hot and cold spaces of the engine are extracted. Then, by substituting the obtained pressure equations into the dynamic relationships the final nonlinear dynamic equations gov...
متن کاملInvestigation of the effect of piston geometrical parameters on RCCI engine performance based on second law of thermodynamic
The reactivity controlled compression ignition engines have high thermal efficiency and low exhaust emission of nitrogen oxides and soot because of low temperature combustion. In this type of engines, low reactivity fuel is injected to air through intake port and high reactivity fuel is injected into the combustion chamber during compression stroke. The aim of current study is to investigate th...
متن کامل