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A device for producing motive power from heat, such as a gasoline engine or steam engine.
- ‘They were interested in how steam and heat engines operate - particularly the question of how to evaluate and measure their efficiency.’
- ‘Since the heat engine in the Prius is turned off at various points in the operating cycle, the air conditioning compressor had to be electric drive and not mechanical.’
- ‘His experimental work may, however, have prompted Kelvin to propose the absolute scale of temperature in 1848 using ideas of temperature, based on the efficiency of heat engines.’
- ‘If you think of these things as big heat engines, and you're seeing an example of that engine, the hurricanes convert that warm Gulf water, for instance, or Atlantic water into energy, the same way a car converts gasoline into energy.’
- ‘In 1824 Sadi Carnot's interest in improving the performance of steam engines led him to think about the efficiency of a heat engine in a new and fundamental way.’
- ‘Well you think of a hurricane as just this big heat engine.’
- ‘These storms, they're just like big heat engines, Larry.’
- ‘Through its reaction with oxygen, hydrogen releases energy explosively in heat engines or quietly in fuel cells to produce water as its only byproduct.’
- ‘This entire thing, now, is just going to be its own heat engine.’
- ‘Descartes, instead, explained the heart as a heat engine that expanded the blood, forcing it out through the circulatory system.’
- ‘Along the way, he connected Joule's work with that of Carnot on heat engines.’
- ‘With the heat engine working harder, the winds and, therefore, the waves, are driven to higher intensity, too, and more of their sodium-laden spume lands on the icecaps.’
- ‘Day after day it was just such a waste to see nature display its heat engine in all its glory and to know that so few folks, if anyone at all, was out there taking advantage of all this free energy.’
- ‘Simply designed, fuel cells are more efficient at converting chemical energy into work than a heat engine.’
- ‘In the nineteenth century, with Newtonian physics pretty well assimilated and a lot of work in thermodynamics going on, man was looked on as a heat engine, about 40 per cent efficient.’
- ‘The mantle of the Earth behaves as a heat engine.’
- ‘They do not understand the limits to efficiency presented by the physical properties of heat engines.’
- ‘This is a key requirement for cranking up their efficiency toward the maximum efficiency possible for any heat engine.’
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