(Units) the derived SI unit of work or energy; the work done when the point of application of a force of 1 newton is displaced through a distance of 1 metre in the direction of the force. 1 joule is equivalent to 1 watt-second, 107ergs, 0.2390 calories, or 0.738 foot-pound. Symbol...
5) J(Joule's equivalent) 焦耳氏当量(热功单位)6) Joule/Kelvin 焦耳/开(熵的单位)补充资料:能量单位 能量单位 unit of energy 耳(J)和千瓦小时(kw·h)是许用单位,卡(cal)和英热单位(Btu)是不许使用单位。 许多国家和一些国际组织采用煤当量或油当量作为各种能源的计量单位。 水电作为一次能源的计量,...
Relation between Calorie and Joule - Introduction Calorie and Joule are one kind of them. It is proved that when the rate of calories is increased then the value of the joules is increased with a growth rate of 4.2. On the other hand, in case of the va
James Prescott Joule (1818 – 1889), an English physicist, calculated in 1843, a few decades after Rumford’s cannon experiments, themechanical equivalent of heatin a series of experiments. In the most famous apparatus he built for this end, now called theJoule apparatus(see image below), a...
A unit of power equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a resistance of 1 ohm 2 Joule A unit of work which is equal to 107 ergs (the unit of work in the C. G. S. system of units), and is equivalent to one watt-second, the...
In equation (1), if H = 1, then W = J. So mechanical equivalent of heat is defined as the amount of work done to produce a unit amount of heat. Clearly, the unit and the magnitude of J depends on the unit of heat and work in different systems of units. ...
The effect of the hot water treatment on the hydrolysis of the 70% ethanol treated chips was observed when the enzymatic reaction was performed using higher concentration of cellulose (cellulose loading ratio >4). As shown in Table 4, over 20% more glucose was produced at equivalent cellulose ...
Since the velocity of the fluid before throttling is quite low, the stagnation state is equivalent to the state at the flow inlet boundary, that is: P0 = PU (39) T0 = T8 ≈ TC (40) Maytal BZ has studied the throttling process of a series of refrigerants [30]. The compressible flow...
Therefore, it is highly desirable to have a universal or equivalent measure of radiation damage that characterizes the surface erosion in all these different environments. The equivalence is established using a practical parameter called damage factor, F ~ q ×τ1/2 (with τ the interaction time ...