Thermodynamics

Reflections on the motive power of heat

HAS PROVEN BY THE QUIET DIGNITY AND THE EFFICIENCY WITH WHICH HE HAS PERFORMED HIS AUGUST DUTIES THAT HE IS A WORTHY MEMBER OF A NOBLE FAMILY, ALREADY RENDERED FAMOUS BY AN EARLIER SADI CARNOT, NOW IMMORTAL IN THE ANNALS OF SCIENCE, AND IS HIMSELF DESERVING OF ENROLMENT IN A L...

Chapters

1. Part 1

HAS PROVEN BY THE QUIET DIGNITY AND THE EFFICIENCY WITH WHICH HE HAS PERFORMED HIS AUGUST DUTIES THAT HE IS A WORTHY MEMBER OF A NOBLE FAMILY, ALREADY RENDERED FAMOUS BY AN EARL...

2. Part 2

Throughout his whole work are distributed condensed assertions of principles now well recognized and fully established, which indicate that he not only had anticipated later wri...

3. Part 3

Did he foresee that this small brochure would become the foundation of a new science? He must have attached much importance to it to publish it, and bring himself out of his vol...

4. Part 4

By our first operations there would have been at the same time production of motive power and transfer of caloric from the body _A_ to the body _B_. By the inverse operations th...

5. Part 5

This, then, is the ratio which exists between the capacity of air for heat under constant pressure and its capacity under constant volume. If the first of these two capacities i...

6. Part 6

The air that we shall first consider as occupying the space _abcd_ (Fig. 2), and having 1 degree of temperature, can be made to occupy the space _abef_, and to acquire the tempe...

7. Part 7

Let us suppose that the piston having moved to _cd_ is forced downward to _ef_, without the steam being allowed to escape, or any portion of its caloric to be lost. It will be d...

8. Part 8

12. A _perfect_ thermodynamic engine of any kind is a machine by means of which the greatest possible amount of mechanical effect can be obtained from a given thermal agency; an...

9. Part 9

28. The preceding investigations, being founded on the approximate laws of compressibility and expansion (known as the law of Mariotte and Boyle, and the law of Dalton and Gay-L...

10. Part 10

TABLE I.[56] MEAN VALUES OF Μ FOR THE SUCCESSIVE DEGREES OF THE AIR-THERMOMETER FROM 0° TO 230°. ───────────────────────────────────┬─────────────────────────────────── ° │ μ ──...

11. Part 11

TABLE II. MECHANICAL EFFECT IN FOOT-POUNDS DUE TO A THERMIC UNIT CENTIGRADE, PASSING FROM A BODY, AT ANY TEMPERATURE LESS THAN 230° TO A BODY AT 0°. ────────────────────────────...

12. Part 12

42. The recent researches of Regnault add immensely to the experimental data available for this object, by giving us the means of determining with considerable accuracy the valu...

13. Part 13

TABLE A. VARIOUS ENGINES IN WHICH THE TEMPERATURE OF THE BOILER IS 140° C. AND THAT OF THE CONDENSER 30° C. _Theoretical Duty for each Unit of Heat transmitted, 440[73] foot-pou...

14. Part 14

(Experiment to be made: To fit to a high-pressure boiler a cock and a tube leading to it and emptying into the atmosphere; to open the cock a little way, and present a thermomet...

15. Part 15

Not only do the specific heats not remain the same at different temperatures, but, also, they do not preserve the same ratios among themselves, so that no thermometric scale cou...

16. Part 16

Thus a duty of 150,000,000 ft.-lbs. per 100 lbs. good coal is to-day attainable, and two thirds that figure is extremely common. With engines of large size the coal-consumption...

17. Part 17

This paragraph is the demonstration, referred to above, of the proposition stated in § 13, as it is readily seen that it is applicable to any conceivable kind of thermodynamic e...