Cooling Coil load calculation using Psychometric chart

[mustangsandwich]

Thanks. Good explanation. We use British units over here in the US. But, still very helpful.

[hamzatariq]

sir how is it possible that outside air DB is 41 and WB is 87 centigrade? not cleared that part

[paoloesposito]

This assumes that all the air is cooled to 12.7 C saturated. In real life only part of the air volume gets in touch with the cooling coils which would be at a T lower than 12.7 (and therefore cools down to saturation point). This will mix with the remaining air volume and therefore the final point for the entire air volume is somewhere in the middle. You don’t supply air at 100% RH to a room.

[sarvendragusain]

Sir please make a video on how to calculate U value for heat load

[achristan]

you divide volum flow rate ( m3/min ) with specific volume ( m3/kg ) should you get mass flow rate in kg/min instead of kg/s ? since you are using perminute so Q out is kw/min not kw/h correct ?

[hamzatariq]

sir why you take 50% RH? you not considered WB 87 centigrade

[ompathak]

Sir plz calculate capacity of cooling coil using mcquay psychrometric analyzer

[SanjayYadav-fydg]

If the air at dry bulb temp at 36 deg C and RH at 42 %, can i cool the air at 11 deg C by directly adding chilled water into air through evaporatorive cooler.
What will be the required sprayed chilled water temp and flow rate?
Can we use chilled water at 7 deg c
And what is the chiller load TR of makeup chilled water?

[ramynazzal]

I think the calculation is wrong if first the Flow rate is in M3/min and not M3/s. if you multiply (H1-H2)* Mass flow rate, we do not get the same result as you. Can you please clarify.

[haarimangat]

In HAP generated report it shows that 4.9 ton coil load is required, then why did you calculated it by manual method.it is my doubt, if u can please tell me

[momolove]

why you chosen 50% RH
From where you bring this number boss ?

[hamzatariqdhanyal]

i did calculation by your metod but answer comes wrong and have checked your answer which is also
wrong .

[ahmedshafath]

we can calculate fresh air using HAP, why psychrometric

[bernardlaval]

Hi, you made a mistake. 34.72 m3/min / 0.925 m3/kg = 37.53 kg/min and not kg/s ;)

[RanjeetKumar-smyu]

Wrong concept, It is easily understandable your line is crossing outside of 100% RH, which is not possible.Pls haveva proper knowledge before you put video on youtube.