Lecture Series on Refrigeration & Air-conditioning by Prof. Ravi Kumar, Department of Mechanical & Industrial Engineering, Indian Institute of Technology Roorkee, Uttarakhand, India
sir, 1 ques is arising, ratio of mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume at same temperature is called relative humidity. can we treat it as ratio of specific humidity for a given volume of air at a temperature to the specific humidity of same volume of air in saturated condition at same temperature. if no then why, if yes then we are getting 2 different values of RH, as Patm-Pv will be different than Patm-Pvs. can you help me.?
By definition ,RH is the ratio of the mass of water vapour in a given volume of moist air to the mass of water vapour in same volume of saturated air. Thus, unlike in humidity ratio where , the ratio is of mass of vapour to that of moist air the ' R' will be different for them . But in case of RH both are masses of water vapor in the ratio .So, R will get cancelled in case of RH
after a long time seeing a best teacher for refrigeration my serach is now finished
Awesome
very well explained sir, i studied from your playlist of steam and gas power systems too.... thankyou for these lectures..
confusing and rapid session than other lecture s
May be i'm wrong but i think ds is not for fresher...
Yeah Its not for fresher. He is on another level. He didn't explain anything properly
sir, 1 ques is arising, ratio of mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume at same temperature is called relative humidity. can we treat it as ratio of specific humidity for a given volume of air at a temperature to the specific humidity of same volume of air in saturated condition at same temperature.
if no then why, if yes then we are getting 2 different values of RH, as Patm-Pv will be different than Patm-Pvs.
can you help me.?
Increase in video quality is compensated by decrease in lec quality.
Very well said
Sir, nice videos. I have a question. Can I use calcium chloride and water absorption as refrigeration system?
Che cane.
ty very much sir
Very niece
Sir why ?u take R same for driving the relative humidity expression.
By definition ,RH is the ratio of the mass of water vapour in a given volume of moist air to the mass of water vapour in same volume of saturated air. Thus, unlike in humidity ratio where , the ratio is of mass of vapour to that of moist air the ' R' will be different for them . But in case of RH both are masses of water vapor in the ratio .So, R will get cancelled in case of RH
Amazing lecture
wow great lecture sir
poor explaination
not clear but good did not meet expectation
U r zero
Which part is not better ? You are a dumb
Your expectations?