[Equest-users] Custom Cooling Curves

[Philip Kennedy]

You can take a look at the attached link:



http://www.comnet.org/mgp/content/675-cooling-systems?purpose=0



If you are trying to model a custom cooling coil however you will need a
considerable amount of manufacturers data. Solving for any one variable in
a dry/wet surface is no trivial task the texts below should provide some
additional insight into the problem. You may want to see what Lawrence
Berkeley National Laboratory produced and how they got there (
http://btus.lbl.gov/sites/all/files/lbnl-6031e_0.pdf).



*Wavy louvered fins*

Chi-Chuan Wang and Yu-Min Tsai and Ding-Chong Lu, 1998, "Comprehensive
Study of Convex-Louver and Wavy Fin-and-Tube Heat Exchangers", Journal of
Thermophysics and Heat Transfer.



*Herringbone Fins*

Empirical correlations for heat transfer and flow friction characteristics
of herringbone wavy fin-and-tube heat exchangers,

Chi-Chuan Wang, Young-Ming Hwang, Yur-Tsai Lin, International Journal of
Refrigeration, 25, 2002, 637-680



*General Information & Fin Efficiency*

An Improved Simple Chilled Water Cooling Coil Model, Lawrence Berkeley
National Laboratory.



CHILLED WATER COOLING COIL MODELS FROM EMPIRICAL TO FUNDAMENTAL

T. T. Chow a Division of Technology, City University of Hong Kong, 83 Tat
Chee Avenue, Kowloon Tong, Hong Kong



Calculation of Fin Efficiency for Wet and Dry Fins

Kwang Taek Hong & Ralph L. Webb, a Department of Mechanical Engineering,
The Pennsylvania State University, University Park, PA



Airside heat transfer and friction characteristics for enhanced
fin-and-tube heat exchanger with hydrophilic coating under wet conditions

Xiaokui Maa, Guoliang Dinga, Yuanming Zhanga, Kaijian Wang



Experimental investigation on the airside performance of fin-and-tube heat
exchangers having herringbone wave fins and proposal of a new heat transfer
and pressure drop correlation.

Nae-Hyun Kim, Jung-Ho Ham and Jin-Pyo Cho









Regards Philip



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*From:* Otto.Schwieterman at Emerson.com [mailto:Otto.Schwieterman at Emerson.com]

*Sent:* Thursday, August 22, 2013 2:55 PM
*To:* philip at kiltechcontrols.com; equest-users at lists.onebuilding.org
*Subject:* RE: [Equest-users] Custom Cooling Curves



Cooling performance curves.



*From:* Philip Kennedy
[mailto:philip at kiltechcontrols.com<philip at kiltechcontrols.com>]

*Sent:* Thursday, August 22, 2013 2:54 PM
*To:* Schwieterman, Otto B [CLIMATE/AC/SID];
equest-users at lists.onebuilding.org
*Subject:* RE: [Equest-users] Custom Cooling Curves



Are you looking for fan curves or coil performance curves?





Regards Philip

* *

*Email Disclaimer*

The information contained in or attached to this email is intended only for
the use of the addressee. If you are not the intended recipient of this
email, or a person responsible for delivering it to the intended recipient,
you are strictly prohibited from disclosing, copying, distributing, or
retaining this email or any part of it. It may contain information which is
confidential and/or covered by legal, professional or other privilege under
applicable law. If you have received this email in error, please notify us
immediately by return email.

The views expressed in this email are not necessarily the views of Kiltech,
and the said companies and their respective directors, officers and
employees make no representation, nor accept any liability, regarding its
accuracy or completeness, unless expressly stated to the contrary.



*From:* equest-users-bounces at lists.onebuilding.org [mailto:
equest-users-bounces at lists.onebuilding.org] *On Behalf Of *
Otto.Schwieterman at Emerson.com
*Sent:* Thursday, August 22, 2013 2:51 PM
*To:* equest-users at lists.onebuilding.org
*Subject:* [Equest-users] Custom Cooling Curves



Hello,



Does anyone have information on how to create custom cooling capacity and
performance curves for air handling units? My goal is to compare actual
equipment so I don’t want to use the default curves.



In the past I have seen information for chillers but I don’t recall if
there was similar information for air handling units.



Any information is appreciated.



Thanks,



Otto
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