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Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,

    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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Work - Energy - Heat Conversions
In physics, mechanical work is the amount of energy transferred by a force acting through a distance. Like energy, it is a scalar quantity, with SI units of joules. The term work was first coined in the 1830s by the French mathematician Gaspard-Gustave Coriolis. - Wikipedia

In physics, energy, from energos, "active, working" is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law. Eight different forms of energy exist to explain all known natural phenomena. These forms include (but are not limited to) kinetic, potential, thermal, gravitational, sound, light, elastic, and electromagnetic energy. The forms of energy are often named after a related force. - Wikipedia

In physics and thermodynamics, heat is the process of energy transfer from one body or system to another due to a difference in temperature. In thermodynamics, the quantity TdS is used as a representative measure of the (inexact) heat differential δQ, which is the absolute temperature of an object multiplied by the differential quantity of a system's entropy measured at the boundary of the object. - Wikipedia

Standard Unit = Joule (J)

  electron V kW*hour calorie joule ft*pounds ergs Btu
1 eV = 1 4.450 * 10-26 3.827 * 10-20 1.602 * 10-19 1.182 * 10-19 1.602 * 10-12 1.519 * 10-22
1 kWh = 2.247 * 1025 1 8.601 * 105 3.6 * 106 2.655 * 106 3.6 * 1013 3413
1 cal = 2.613 * 1019 1.163 * 10-6 1 4.186 3.087 4.186 * 107 3.968 * 10-3
1 J = 6.242 * 1018 2.778 * 10-7 0.2389 1 0.7376 107 9.481 * 10-4
1 ft*lb = 8.464 * 1018 3.776 * 10-7 0.3239 1.356 1 1.356 * 107 1.285 * 10-3
1 erg = 6.242 * 1011 2.778 * 10-14 2.389 * 10-8 10-7 7.376 * 10-8 1 9.481 * 10-11
1 Btu = 6.585 * 1021

 

 2.930 * 10-4 252.0 1055 777.9 1.055 * 1010 1

1 hp * hr = 2545 Btu
1 MeV = 106 eV		 1 kg = 8.987 * 1016 J
(from e=mc2)

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