steam is more effective because the particles of steam have absorbed extra energy in the form of latent heat of vaporization apparent temp is 100c and actual temp is more than 100c whereas the actual temp of water is 100c
You have to add lots of energy to 100c water to turn it into 100c steam, thus the steam can heat up more before cooling down to normal room temperature water. The ammount of energy is equal to that of heating water from 0c to 100c 5,4 times over.
I would think just the opposite. Gases are poor media for the transfer of heat. Liquids are better & solids are usually the best, particularly metals. If you would stick your hand in the boiling water & the steam above it for the same amount of time, say a few seconds, the boiling water should produce a more severe burn than the steam at the same temperature. (Please, I recommend not to try it.) This explains why you can stick your bare arm in 400 deg oven to retrieve something and you don't get a burn on your arm. But if you accidentally touch the metal rack in the oven with your arm,which I have done, you get a very nasty burn. Hope this info helps.
Because while water at 100C and steam at 100C are both at the same temperature, the steam also contains the latent heat of vaporization energy.
To make sure whatever you are heating doesnt get above the temperature of steam (~100 degrees C).
The bituminous coals are considered to be 'all purpose' coals,and because of its excellent heating quality and the ease with which it can be handled, it is the most extensively used fuel in the world. In inditries it can be used for steam raising ,heating purposes, gasification, and coking
It really depends on the temperature of the steam and temperature of the cold surface. 250 degree steam hitting a 50 or 60 degree surface will just turn back into water and droplets can be seen almost immediately. 1000+ degree steam hitting a frozen surface may cause a loud bang and eventually turn back into water.
whenever steam is utilised as heating media, steam condensate is produced.This steam condensatecan be utilsed for steam generation at some other location and needs to be pumped, for pumping you need some intermediate storage of this condensate. For storing it we use condensate pot whose level can be controlled.
Water can be heated at 100 degree celsius to give steam which is the gaseous state of water
To make sure whatever you are heating doesnt get above the temperature of steam (~100 degrees C).
there are many factors to be considered to achieve desired temps. when using steam as a heating source. pressure and temp. are very critical due to expansion of the vessel and the piping.
WELL! moist heat is used by heating with steam and the steam can not be formed below 100oC so it is not possible to kill microorganism by moist heat below hundred degree
Steam heating is a legacy system left over from previous generations. It's less efficient thant modern heating systems. However it's often not economical to rip out a steam heating system and then replace it.
The pips in a steam heating system need to be insulated to prevent condensation. Condensation can lead to mold and or freezing of the steam pipes in the winter.
Steam is a gas stage of water. You can produce steam by heating water to boiling point.
William Stanton Monroe has written: 'Steam heating and ventilation' -- subject(s): Ventilation, Steam-heating
The bituminous coals are considered to be 'all purpose' coals,and because of its excellent heating quality and the ease with which it can be handled, it is the most extensively used fuel in the world. In inditries it can be used for steam raising ,heating purposes, gasification, and coking
The bituminous coals are considered to be 'all purpose' coals,and because of its excellent heating quality and the ease with which it can be handled, it is the most extensively used fuel in the world. In inditries it can be used for steam raising ,heating purposes, gasification, and coking
By heating water
James Herbert Bartlett has written: 'District steam supply' -- subject(s): Heating from central stations, Steam-heating
The bituminous coals are considered to be 'all purpose' coals,and because of its excellent heating quality and the ease with which it can be handled, it is the most extensively used fuel in the world. In inditries it can be used for steam raising ,heating purposes, gasification, and coking