Results 181 to 190 of about 17,485 (243)
Some of the next articles are maybe not open access.
Carnot's Version of “Carnot's Cycle”
American Journal of Physics, 1955The desirability and the difficulty of retrieving modern scientific concepts in classical scientific authors is discussed with particular reference to a recently published re-evaluation of Sadi Carnot's memoir. Evidence is presented to support the interpretation of Carnot provided by his nineteenth-century successors and current in modern texts: Carnot'
openaire +1 more source
Journal of Chemical Education, 2001
With this Mathcad document students investigate the Carnot cycle with numerical calculations on an ideal, monatomic gas. They discover the consequences on the net work and the thermodynamic efficiency of changing variables such as the pressure to which expansion occurs, and the working temperatures of the process.
openaire +1 more source
With this Mathcad document students investigate the Carnot cycle with numerical calculations on an ideal, monatomic gas. They discover the consequences on the net work and the thermodynamic efficiency of changing variables such as the pressure to which expansion occurs, and the working temperatures of the process.
openaire +1 more source
Carnot Processes. Carnot Cycles and Webs. Lemmas regarding Heat and Work for Cycles in a Carnot Web
1977A cyclic process for which neither 풯+ nor 풯− is empty is a Carnot process if there are constant temperatures θ+ and θ−, called the operating temperatures of the process, such that $$\begin{array}{*{20}c} {\theta = \theta ^ + onTscr^ + ,} \\ {\theta = \theta ^ - < \theta ^ + onTscr^ - } \\ \end{array} $$ (7.1) .
Clifford Ambrose Truesdell +1 more
openaire +1 more source
Journal of Chemical Education, 1988
A brief discussion of the Carnot cycle that represents a slightly different approach to the idea of a heat engine and introduces a somewhat paradoxical situation whose resolution may lead students to a better understanding of the thermodynamic principles upon which it is based.
openaire +1 more source
A brief discussion of the Carnot cycle that represents a slightly different approach to the idea of a heat engine and introduces a somewhat paradoxical situation whose resolution may lead students to a better understanding of the thermodynamic principles upon which it is based.
openaire +1 more source
The Chemical Educator, 2002
Sadi Carnot stated that the efficiency of a reversible Carnot cycle is independent of the properties of the material used to run the cycle. Using this statement, all textbook discussions of the Carnot cycle use an ideal gas. Here, in contrast, we consider, in the spirit of the Caratheodory approach, a general analysis centered on the existence of an ...
openaire +1 more source
Sadi Carnot stated that the efficiency of a reversible Carnot cycle is independent of the properties of the material used to run the cycle. Using this statement, all textbook discussions of the Carnot cycle use an ideal gas. Here, in contrast, we consider, in the spirit of the Caratheodory approach, a general analysis centered on the existence of an ...
openaire +1 more source
2015
How might a heat engine attain the highest possible efficiency? Does a heat-engine’s efficiency depend on its construction? On the type of intermediate substance employed? On the temperature of the boiler? Of the condenser? Carnot argued that all these factors may, in fact, affect the efficiency of a heat-engine.
openaire +1 more source
How might a heat engine attain the highest possible efficiency? Does a heat-engine’s efficiency depend on its construction? On the type of intermediate substance employed? On the temperature of the boiler? Of the condenser? Carnot argued that all these factors may, in fact, affect the efficiency of a heat-engine.
openaire +1 more source
American Journal of Physics, 1966
A number of interesting sketches of the Carnot cycle (operated as a heat engine and with an ideal gas as the working substance) are presented. Heat and work are used as the coordinates in addition to several thermodynamic variables (P, V, T, E, H, S, G, and A).
openaire +1 more source
A number of interesting sketches of the Carnot cycle (operated as a heat engine and with an ideal gas as the working substance) are presented. Heat and work are used as the coordinates in addition to several thermodynamic variables (P, V, T, E, H, S, G, and A).
openaire +1 more source
Carnot cycles in general relativity
General Relativity and Gravitation, 1973Classical thermodynamics has been developed with the assumption that, either no gravitational fields are present in the thermodynamic systems, or that the fields act on the Newtonian mass of the systems only and not on any other kind of internal energy like heat.
R. Ebert, R. G�bel
openaire +1 more source
Golden section in the Carnot cycle
Physics-Uspekhi, 2000Some aspects of classical thermodynamics are analyzed for the presence of duality and of the golden section.
Valerian V. Popkov, Evgenii V. Shipitsyn
openaire +1 more source
American Journal of Physics, 1963
The heat Q2 exchanged with the high-temperature reservoir and the heat Q1 exchanged with the low-temperature reservoir identify each Carnot cycle with a single point on the heat exchange plane, the Q2−Q1 plane. The axes and the zero work line divide this plane into half-planes whose physical interpretation is described with the aid of the laws of ...
openaire +1 more source
The heat Q2 exchanged with the high-temperature reservoir and the heat Q1 exchanged with the low-temperature reservoir identify each Carnot cycle with a single point on the heat exchange plane, the Q2−Q1 plane. The axes and the zero work line divide this plane into half-planes whose physical interpretation is described with the aid of the laws of ...
openaire +1 more source