[Hap-users] A survey on measuring wall height

[varun kulkarni]

On Thu, Feb 17, 2011 at 11:17 PM, Michael Hardy <
mhardy at blackoakengineering.com> wrote:

>  I measure floor to floor whether I have return air plenums or ducted
> returns.
>
>
>
> My thinking is that there is heat gain/loss through the wall portion above
> a ceiling and below the floor above whether there is air flowing through it
> (RA plenum) or not (ducted returns).
>
>
>
> I have not tried any of the testing you’ve suggested, but now that you
> mention it, I might play with it a bit to see what happens.
>
>
>
> Michael L. Hardy, PE, F.NSPE
> Black Oak Engineering, Inc.
> Cell 503.314.5244
>
>
>
> *From:* hap-users-bounces at lists.onebuilding.org [mailto:
> hap-users-bounces at lists.onebuilding.org] *On Behalf Of *Reba Schaber
> *Sent:* Thursday, February 17, 2011 6:39 PM
> *To:* hap-users at lists.onebuilding.org
> *Subject:* [Hap-users] A survey on measuring wall height
>
>
>
> When measuring the wall height to determine the wall area, it’s clear the
> measurement should be floor to floor for return air plenums.  Then the
> appropriate percentage is used in the wall-to-plenum heat gain field of the
> System’s duct system data.
>
>
>
> How many HAP users still measure floor to floor when there is ducted
> return?  Have you then entered the wall area by measuring floor to ceiling
> to check the effect on the load?  What is that effect?
>
>
>
> It is such a hassle to re-enter the wall area if the system changes from
> return air plenum to ducted return.  It would seem the safest assumption is
> to enter wall areas by measuring wall height from floor to floor.  Do you
> agree?
>
>
>
>
>
> * **                PH* *MECHANICAL ENGINEERING
> *         *Reba Schaber*      Mechanical Engineer, P.E.
>                                      LEED Accredited Professional
> 1660 N. Alvernon Way                Voice: (520) 731-2060
> Tucson, Arizona 85712                Fax: (520) 731-2061
>                         rschaber at phmech.com
>
>
>
>
>
> _______________________________________________
> Hap-users mailing list
> http://lists.onebuilding.org/listinfo.cgi/hap-users-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to
> HAP-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
>
>


-- 

Thanks and Best Regards,



Sincerely,

Varun Kulkarni , M.S. , EIT

RMF Engineering

5520, Research Park Drive, Suite 300

Baltimore, MD - 21228



Office : 410-576-0505 ext. 5352

Mobile: (+1)405-385-1928



Note: Please do not print, unless required.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/hap-users-onebuilding.org/attachments/20110218/9bb1bc4c/attachment-0002.htm>