Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion
Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 1 (Q.No. 6)
6.
The humidity ratio or specific humidity is the mass of water vapour present in
Discussion:
14 comments Page 1 of 2.
Vishal kadam said:
7 years ago
@All.
No anyone direct measure specific humidity ratio. The scientist already has taken effort by doing a number of experiments and create psychometric charts, there we can directly calculate the humidity ratio if we know the DBT & WBT.
Humidity ratio = mass of water vapour per unit dry air in the moist air. It is the concept.
No anyone direct measure specific humidity ratio. The scientist already has taken effort by doing a number of experiments and create psychometric charts, there we can directly calculate the humidity ratio if we know the DBT & WBT.
Humidity ratio = mass of water vapour per unit dry air in the moist air. It is the concept.
Amrit said:
9 years ago
I think humidity ratio is the ratio in the mixture of water vapour and dry air.
Humidity ratio is evaluated from moist air. Eg. If 3kg of dry air is mixed with 2 kg of water vapour then humidity ratio will be 2/3.
Humidity ratio is evaluated from moist air. Eg. If 3kg of dry air is mixed with 2 kg of water vapour then humidity ratio will be 2/3.
Ali hassan said:
1 decade ago
D right because the Specific humidity is approximately equal to the "mixing ratio", which is defined as the ratio of the mass of water vapor in an air parcel to the mass of dry air for the same parcel.
Rajesh said:
1 decade ago
Specific humidity is the proportion of the mass of water vapor per unit mass of the moist air sample (dry air plus the water vapor) it is closely related to humidity ratio and always lower in value.
M MASOOM RAZZAQI said:
9 years ago
Dry air means there is no water suspended particals in air but dry water vapor are preent. Therefore these dry vapors %age is called specific humidity ratio.
Puneet said:
9 years ago
Specific humidity, the mass of water vapour in a unit mass of moist air, usually expressed as grams of vapour per kilogram of air.
Puneet Sharma said:
9 years ago
How can we measure air in terms of 'kg' and how water vapour can be present in 'dry air'?
Sagar said:
10 years ago
My question is ' How water vapors can be present in dry air' as written in the question?
Dayanand said:
1 decade ago
C right because water vapour weight in kg/wet air (dry air+water vapour) in kg.
Getnet said:
7 years ago
I'm not understanding this question. Please, anyone, help me to get it.
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