for calculating CFM, we need Air changes and for calculating air changes we need CFM, Now how can we calculate the CFM of room, even when we dont now taht how many air changes are in this room??? a bit confusion
Air changes are already provided by different guidelines for their different class of areas. For example for iso class 8 air changes is standard and it is provided in iso guidelines. So by using that value you can calculate cfm
@@tech1234 Correct, there are norms and international standards that give guidelines as to which application requires how many air changes. After you know the amount of air changes required for that application then it is just a matter of applying formula Room Volume cu.ft. x number of air changes per hour ÷ 60 to give you air flow required in cfm.
can u tell me sir how to i achieved designed acph if my class is 1000 . suppose in guidelines it's given 100-200 so how i can chosse any value between 100-200
Bleed damper and supply damper ko adjust kar ke pressure change kar sakte hai. Bleed damper ko increase kar ke and supply damper ko decrease kar ke area ka pressure kar sakte hai
Differential pressure can be achieved by changing air flow of room (cfm) . for high pressure area high cfm and for low pressure area low cfm. This is done by adjusting damper. It can be measured by magnehelic gauge
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Amazing sir g keep it it will help lots of people. Thanks for sharing this information i am getting my all concepts clear now
API plant mein do airlock honge to vah kaun se alag honge
Why control air pressure in hvac control room ? Please inform me
Okay thank you sir ji aapko bhi happy new year
Thanks
What is the connection between pressure and room temperature or comfortness
Sir kaun se area me kitna pressure rakna h. Please tell to us
vial washing ki depyrogenation tunnel ki working pe video bnana sir g plz....
can we maintain positive air pressure by supply more cfm than return air.....
Yes
Sir how many types of differential pressure like bubble sink
3
What should be the sequence of adjustments of differential pressure
Low to high pressure or high to low pressure when single ahu used for four rooms
According to pharmaceutical industry rules we can't open outdoor dampers above 10 % so how can u manage +ve pressure into the area.
Good work
Pressure balancing chya Veles room ch pressure kiti aste
15 to 20 Pascal
With out fresh air ke alawa koi option hai pressure maintain krne k liy.
Yes return riser but it work on low pressure
what should level of RH in clean room
not more than 35 40 percent
for calculating CFM, we need Air changes and for calculating air changes we need CFM, Now how can we calculate the CFM of room, even when we dont now taht how many air changes are in this room??? a bit confusion
Air changes are already provided by different guidelines for their different class of areas. For example for iso class 8 air changes is standard and it is provided in iso guidelines. So by using that value you can calculate cfm
@@tech1234 Correct, there are norms and international standards that give guidelines as to which application requires how many air changes. After you know the amount of air changes required for that application then it is just a matter of applying formula Room Volume cu.ft. x number of air changes per hour ÷ 60 to give you air flow required in cfm.
can u tell me sir how to i achieved designed acph if my class is 1000 .
suppose in guidelines it's given 100-200 so how i can chosse any value between 100-200
Go for at least 50% of given range because if you have taken 100 (least value) than there is more chance of fail in validation
Very useful
Hamare company Mai fresh air damper nhi Diya huya hai hum kaise maintain Kare plz help,🙏
Bleed damper and supply damper ko adjust kar ke pressure change kar sakte hai. Bleed damper ko increase kar ke and supply damper ko decrease kar ke area ka pressure kar sakte hai
How to achieve differential pressure from one area to another and how to measure it
Differential pressure can be achieved by changing air flow of room (cfm) . for high pressure area high cfm and for low pressure area low cfm. This is done by adjusting damper. It can be measured by magnehelic gauge
😊 संतुष्ट 80%
sir spki voice bilkul bhi clear ni h pls