Calculation of Air Temperature in Plumbing Chase Enclosed by Heated Space & Outdoor Temperature

[DCEngr1]

ENGINEERS:

I am attempting to determine the air temperature of the interior of a plumbing/pipe chase that is enclosed by an ABS shower stall (55 F inside the stall in the living space), and by a wood stud-frame wall with only friction-fit 3-1/2 inch fiberglass batt insulation (no interior or exterior finish board on either side of the studs) between the studs to enclose the exterior side of the batt (exposed to the interior of a porch roof space vented to the outside)from -5 F outdoor temperatures. The batt is the only component that separates the cold-air space above the porch roof from the interior of the pipe chase.

If the inside surface temperatures of wall construction of an interior wall and an exterior wall can be determined from resistances of the materials and interior/exterior temperature differentials, can the temperature of the air in the space in a pipe chase (between the walls) in an attic be determined with reasonable accuracy?

If so, how? Do the calculated surface temperatures of the wall areas exposed to the pipe chase assist in determining the air temperature in the space? If so, how?

Could it reasonably be theorized that the air temperature in the chase is the average of the temperatures of the surfaces of exterior & interior walls that face the interior of the enclosed plumbing chase?

Thank you,

DCEngr1

 

[racookpe1978]

I thought you already put this in the mechanical forum.

Delete it here, or delete it there. Don't post twice.

 

[DCEngr1]

I did not realize that there was another forum catagory that would be more applicable until someone mentioned it in my other post.

No disrespect intended. But, are you authorized to monitor this site?

If there is some rule against posting the same question in another catagory of the forum, let me know & I will remove the other.

If not, then I will be thankful to receive some other answers to my question - from you, or from others who are willing to assist me.

Thank you,

DCEngr1

 

[IRstuff]

Yes, he is. This site depends on its members, including Mr. Cook, who is also a member of the forum management advisory council, to monitor and keep the site clutter-free.

And, had you read the posting policies in the 7 years you've been a member, you see:

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Of course I can. I can do anything. I can do absolutely anything. I'm an expert!
There is a homework forum hosted by engineering.com:

http://www.engineering.com/AskForum/aff/32.aspx

 

[willard3]

You are here asking for free Engineering and want to argue with the forum rules?