Previous in Forum: Assistance on Transient Heat Transfer Problem in Windows   Next in Forum: How to Estimate Forces From an Experimental Vibration Analysis?
Close
Close
Close
16 comments
Rating: Comments: Nested
Participant

Join Date: Apr 2017
Posts: 3

AHU Cooling Coil Capacity Calculation

04/25/2017 3:09 AM

How to calculate ahu cooling coil capacity in tr

Fin height 508mm

Fin length 1042mm

Copper tube 1/2" X .41 mm

Row deep 06mm

Formula required

Ahu capacity 3896

Register to Reply
Pathfinder Tags: refrigeration
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: ahu cooling coil capacity calculation

04/25/2017 3:49 AM

In the absence of the inlet and outlet temperatures of the heat transfer fluid, its flowrate and its thermal capacity, the answer is zero; no formula is needed for that.

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#2
In reply to #1

Re: ahu cooling coil capacity calculation

04/25/2017 4:28 AM

Oh, and the inlet and outlet conditions of the air and its flowrate. That would help too.

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Participant

Join Date: Apr 2017
Posts: 3
#3
In reply to #2

Re: ahu cooling coil capacity calculation

04/25/2017 5:50 AM

End connection of Inlet and outlet -2"

Dela T6 ( present condition) , what will the maximum TR can achieve in this cooling coil & how to calculate time required to achieve the temperature from 28 to 24 degree

Register to Reply Off Topic (Score 6)
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#4
In reply to #3

Re: ahu cooling coil capacity calculation

04/25/2017 6:42 AM

It is understandable that a Mechanical Engineering section will pay scant attention to fluid dynamics, as this topic falls outside the remit of this discipline; after all, many individuals believe that metal-bashing is all that Engineering is about and nothing else.

However, fluid conditions are the items that are needed to provide an answer to the questions posed in the original posting. At the moment, the size of connections onto the equipment is completely irrelevant.

Has the original equipment manufacturer responded to telephone calls on the topic or is this new-build?

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply Off Topic (Score 5)
Guru

Join Date: Sep 2016
Posts: 973
Good Answers: 9
#5

Re: ahu cooling coil capacity calculation

04/25/2017 10:06 AM

see the specs plate so that you don't need to compute. If you want still to compute, see a mechanical engineer. If you are one, I just don't know where you've been. Or search google or youtube.

Register to Reply Score 1 for Off Topic
2
Guru

Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33392
Good Answers: 1817
#6

Re: AHU Cooling Coil Capacity Calculation

04/25/2017 10:32 AM
__________________
All living things seek to control their own destiny....this is the purpose of life
Register to Reply Good Answer (Score 2)
Guru
United States - Member - Hobbies - Fishing - New Member Hobbies - Target Shooting - New Member Hobbies - RC Aircraft - New Member Engineering Fields - Aerospace Engineering - New Member

Join Date: May 2009
Location: Saint Helens, Oregon
Posts: 2216
Good Answers: 70
#9
In reply to #6

Re: AHU Cooling Coil Capacity Calculation

04/25/2017 3:11 PM

Nice link Maybe the OP can fill in the blanks he's not sharing with the rest of us?

__________________
Confucius once said, “ Ability will never catch up with the demand for it".
Register to Reply
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#10
In reply to #9

Re: AHU Cooling Coil Capacity Calculation

04/26/2017 12:29 PM

So many blanks. So little time...

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Guru
Safety - Hazmat - New Member United States - US - Statue of Liberty - New Member Engineering Fields - Chemical Engineering - Old Hand

Join Date: Mar 2011
Location: Lubbock, Texas
Posts: 14331
Good Answers: 162
#11
In reply to #10

Re: AHU Cooling Coil Capacity Calculation

04/26/2017 12:36 PM

did someone yell "fire" in his theater of operation?

__________________
If it ain't broke, don't fix it. Just build a better one.
Register to Reply
Guru
Safety - Hazmat - New Member United States - US - Statue of Liberty - New Member Engineering Fields - Chemical Engineering - Old Hand

Join Date: Mar 2011
Location: Lubbock, Texas
Posts: 14331
Good Answers: 162
#7

Re: AHU Cooling Coil Capacity Calculation

04/25/2017 1:52 PM

IS the AHU capacity in kW? BTU/hr? AC Tons? Grains of sand cooled to 24 C per hour?

Formula : E=mc2

You left a lot of useful parameters out of consideration, so go back to your homework question, and the example in the textbook, and fill us in on details. Otherwise go do your own homework.

__________________
If it ain't broke, don't fix it. Just build a better one.
Register to Reply
Guru

Join Date: Dec 2016
Posts: 2914
Good Answers: 115
#8

Re: AHU Cooling Coil Capacity Calculation

04/25/2017 2:43 PM

What's the working fluid? Water? Ammonia? R22? (Be still my heart) banana pudding?

What is the flow rate?

Register to Reply
Participant

Join Date: Apr 2017
Posts: 3
#12
In reply to #8

Re: AHU Cooling Coil Capacity Calculation

04/27/2017 1:42 PM

Unga atha

Register to Reply
Guru

Join Date: Dec 2016
Posts: 2914
Good Answers: 115
#13
In reply to #12

Re: AHU Cooling Coil Capacity Calculation

04/27/2017 1:49 PM

As I've long suspected...

Register to Reply
Guru
Safety - Hazmat - New Member United States - US - Statue of Liberty - New Member Engineering Fields - Chemical Engineering - Old Hand

Join Date: Mar 2011
Location: Lubbock, Texas
Posts: 14331
Good Answers: 162
#14
In reply to #12

Re: AHU Cooling Coil Capacity Calculation

04/27/2017 2:06 PM

Tamil? Most of that language has not been translated to English??

I cannot find unga atha as such, but: "Hey, hold on... did you just threaten to fornicate with my mother...?!?!?" If so, then not only are a mother F***er, you are a necrophiliac.

Good riddance, pest of earth.

__________________
If it ain't broke, don't fix it. Just build a better one.
Register to Reply
Guru
United States - Member - Hobbies - Fishing - New Member Hobbies - Target Shooting - New Member Hobbies - RC Aircraft - New Member Engineering Fields - Aerospace Engineering - New Member

Join Date: May 2009
Location: Saint Helens, Oregon
Posts: 2216
Good Answers: 70
#15
In reply to #14

Re: AHU Cooling Coil Capacity Calculation

04/27/2017 5:07 PM

I think he's trying to say he's only into monkeys

__________________
Confucius once said, “ Ability will never catch up with the demand for it".
Register to Reply
Guru
Safety - Hazmat - New Member United States - US - Statue of Liberty - New Member Engineering Fields - Chemical Engineering - Old Hand

Join Date: Mar 2011
Location: Lubbock, Texas
Posts: 14331
Good Answers: 162
#16
In reply to #15

Re: AHU Cooling Coil Capacity Calculation

04/28/2017 9:26 AM

NO, no , no, no! That would have been Ungawa Cheetah! You are not the only one that has watched the classics, Tarzan, Flash Gordon, etc.

__________________
If it ain't broke, don't fix it. Just build a better one.
Register to Reply
Register to Reply 16 comments

Good Answers:

These comments received enough positive votes to make them "good answers".
Copy to Clipboard

Users who posted comments:

Andrew Westman (2); dj95401 (2); gutmonarch (1); James Stewart (4); joseph p (2); PWSlack (4); SolarEagle (1)

Previous in Forum: Assistance on Transient Heat Transfer Problem in Windows   Next in Forum: How to Estimate Forces From an Experimental Vibration Analysis?

Advertisement