Chemical Engineering - Chemical Engineering Basics - Discussion

13. 

Evaporative cooling process employs a combination of cooling and humidification in which the

[A]. sensible heat is added.
[B]. sensible heat is removed and the latent heat is added.
[C]. latent heat is removed.
[D]. sensible heat is added and latent heat is removed.

Answer: Option B

Explanation:

No answer description available for this question.

Raj said: (Jul 1, 2013)  
For cooling process we have to remove the sensible heat and for humidification we have to give the latent heat.

Abhilash said: (Jul 29, 2013)  
Let us take a simple practical example of refrigerator. In freezer section (called as evaporator) refrigerant enters in liquid state and exits in gaseous state. To convert ammonia from liquid to gaseous state we add first sensible heat (subcooled liquid to saturated liquid) and then we add latent heat which converts it saturated liquid to gaseous form.

Jithin said: (Aug 22, 2014)  
For cooling process we have to remove the sensible heat and for humidification we have to give the latent heat.

Mit said: (Jul 26, 2015)  
Can anyone tell me how to convert chlorine from liquid to gas?

Saikiran said: (May 22, 2016)  
Sensible change in temperature of gas is the latent heat required to vaporise the liquid and process is also known as adiabatic saturation, and temperature of gas is adiabatic saturation temperature or wet bulb temperature.

Nain said: (Jul 13, 2016)  
If we are unaware of the actual process (i.e) humidification and cooling, it is clear from the term "evaporative cooling" that the process must involve addiction of latent heat for evaporation and removal of sensible heat that is cooling.

Sagar said: (Sep 24, 2016)  
You are right & I agree with you @Nain.

Sagar said: (Sep 24, 2016)  
Sensible heat from the liquid is removed and latent heat is added to gas.

Sai said: (Oct 31, 2016)  
What is meant by humidification?

Sai said: (Oct 31, 2016)  
Sensible heat means?

Bhavesh Sangani said: (Dec 15, 2016)  
@Sai.

Sensible heat means the change in temperature without change in phases.

Saif said: (Feb 28, 2017)  
Thanks for providing the useful informtion.

Muhammad Rashid said: (Sep 8, 2017)  
Latent/Sensible Heat extended definition. Latent and sensible heat are types of energy released or absorbed in the atmosphere. Latent heat is related to changes in phase between liquids, gases, and solids. Sensible heat is related to changes in temperature of a gas or object with no change in phase.

Satish said: (Feb 23, 2018)  
Good explanation @Nain.

Harsh Agre said: (Aug 26, 2019)  
Sensible Heat: Q=mCp ΔT.

where, m=mass flow rate
Cp=Heat capacity at constant pressure
ΔT = Temperature Const.

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