*Some common specific heats and heat capacities:*
Substance S (J/g0C) C (J/0C) for 100 g
Air 1.01 101
Aluminum 0.902 90.2
Copper 0.385 38.5
Gold 0.129 12.9
Iron 0.450 45.0
Mercury 0.140 14.0
NaCl 0.864 86.4
Ice 2..03 203
Water 4.179 417.9
*List of orders of magnitude forspecific heat capacity
<https://en.wikipedia.org/wiki/Specific_heat_capacity>*SI prefix
<https://en.wikipedia.org/wiki/SI_prefix> Factor Value J
<https://en.wikipedia.org/wiki/Joule>·kg
<https://en.wikipedia.org/wiki/Kilogram>^−1 ·K
<https://en.wikipedia.org/wiki/Kelvin>^−1 Item
deca <https://en.wikipedia.org/wiki/Deca-> 10^1 94 Radon
<https://en.wikipedia.org/wiki/Radon>
hecto <https://en.wikipedia.org/wiki/Hecto> 10^2 120 Uranium
<https://en.wikipedia.org/wiki/Uranium>
129 Gold <https://en.wikipedia.org/wiki/Gold>
130 Iridium <https://en.wikipedia.org/wiki/Iridium>
Osmium <https://en.wikipedia.org/wiki/Osmium>
139 Mercury <https://en.wikipedia.org/wiki/Mercury_%28element%29>
145 Iodine <https://en.wikipedia.org/wiki/Iodine>
158 Xenon <https://en.wikipedia.org/wiki/Xenon>
240 Caesium <https://en.wikipedia.org/wiki/Caesium>
246 Ethanol <https://en.wikipedia.org/wiki/Ethanol>
248 Krypton <https://en.wikipedia.org/wiki/Krypton>
363 Rubidium <https://en.wikipedia.org/wiki/Rubidium>
377.48 Brass <https://en.wikipedia.org/wiki/Brass>
385 Copper <https://en.wikipedia.org/wiki/Copper>
420 Cobalt <https://en.wikipedia.org/wiki/Cobalt>
444 Iron <https://en.wikipedia.org/wiki/Iron>
480 Bromine <https://en.wikipedia.org/wiki/Bromine>
Chlorine <https://en.wikipedia.org/wiki/Chlorine>
502 Diamond <https://en.wikipedia.org/wiki/Diamond>
520 Argon <https://en.wikipedia.org/wiki/Argon>
677 Glass <https://en.wikipedia.org/wiki/Glass>
720 Graphite <https://en.wikipedia.org/wiki/Graphite>
757 Potassium <https://en.wikipedia.org/wiki/Potassium>
824 Fluorine <https://en.wikipedia.org/wiki/Fluorine>
900 Aluminium <https://en.wikipedia.org/wiki/Aluminium>
kilo <https://en.wikipedia.org/wiki/Kilo-> 10^3 1030 Neon
<https://en.wikipedia.org/wiki/Neon>
1230 Sodium <https://en.wikipedia.org/wiki/Sodium>
1660 Pentane <https://en.wikipedia.org/wiki/Pentane>
≈ 2000 Oil <https://en.wikipedia.org/wiki/Oil>
2060 Ice <https://en.wikipedia.org/wiki/Ice>(0°C)
2100 Coconut oil <https://en.wikipedia.org/wiki/Coconut_oil>
3582 Lithium <https://en.wikipedia.org/wiki/Lithium>
3767 Heavy water <https://en.wikipedia.org/wiki/Heavy_water>
4186 Water <https://en.wikipedia.org/wiki/Water>
4700 Ammonia <https://en.wikipedia.org/wiki/Ammonia>(liquid)
5193 Helium <https://en.wikipedia.org/wiki/Helium>
10^4 14304 Hydrogen <https://en.wikipedia.org/wiki/Hydrogen>
Roger, please give a couple examples of things with higher specific heat
(heat capacity) than water that are practical for using in conjunction
with a DL by typical hams.
While I would never use water to fill a cantenna, a DL with provision
for liquid coolant could do well with water as the heat transfer
liquid. Of the commonly available substances in my limited experience
only liquid ammonia (as used in old time refrigeration systems) would do
better but I HATE AMMONIA so would not go there personally.
Patrick NJ5G
On 12/5/2015 12:00 AM, Roger (K8RI) on TT wrote:
one point:
Water does not have high heat capacity, but it's great for
transferring heat. 1 calorie will heat 1 cc of water 1 deg.
Heat capacity and the ability are quite different.
73
Roger (K8RI)
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|