1890
DOI: 10.5962/bhl.title.17778
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Reflections on the motive power of heat and on machines fitted to develop that power

Abstract: In this paper the corrections due to the introduction of the dynamic theory are first applied.

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Cited by 77 publications
(122 citation statements)
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“…It seems necessary to stress that conservation of heat for thermodynamic matter has been derived from conservation of mass and energy-momentum, and definitely differs from the old caloric theory of Carnot [20]. A relativistic version of the caloric theory would be to describe heat by an energy-momentum vector, the caloric current J H = εu + q, and conservation of heat by ∇ · J H = 0, as for conservation of mass.…”
Section: Discussionmentioning
confidence: 99%
“…It seems necessary to stress that conservation of heat for thermodynamic matter has been derived from conservation of mass and energy-momentum, and definitely differs from the old caloric theory of Carnot [20]. A relativistic version of the caloric theory would be to describe heat by an energy-momentum vector, the caloric current J H = εu + q, and conservation of heat by ∇ · J H = 0, as for conservation of mass.…”
Section: Discussionmentioning
confidence: 99%
“…We assume that the heat sink is at temperature Tc = 300 K, and model the sun as a blackbody emitter with a temperature of T h = 6000 K. The general expression for the engine efficiency is also shown in Figure 2b, which depends on the temperatures of individual elements and on the mechanisms of the energy delivery to and entropy rejection from the engine. In particular, if heat is delivered to an engine via blackbody radiation (I h ) and the engine rejects entropy to the environment via blackbody radiation (Sr) and heat conduction (Ss), the heat can be converted to work at a maximum efficiency that is less than the classical Carnot efficiency limit [53]. This efficiency is known as the Landsberg efficiency [3,44] (Figure 2c, blue dotted line), which is calculated under the assumptions that the heat source is the sun and there is no irreversible entropy generation in the engine (Sg = 0).…”
Section: Photon Entropy and Light Energy Conversion Limitsmentioning
confidence: 99%
“…Termín entropie zavedl Rudolf Clausius, přičemž pro entropii zvolil označení S na počest Sadi Carnota a jeho přelomové práce o teorii tepelných motorů z roku 1824 (Carnot, 2005), která upoutala pozornost tehdejších fyziků a inspirovala je k dalšímu výzkumu dané problematiky. Clausius formuloval dva "fundamentální teorémy mechanické teorie tepla" (Clausius, 1867, s. 365):…”
Section: Sonda Do Historie Pojmů a Terminologie Termodynamikyunclassified