[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [EnergyPlus_Support] Best way to simulate void (like in Mall or Mezzanine)





Thanks for reply,

Sure I will consider about the weather and thermal properties of roof and glasses. The problem is how to simulate inside the zone. 
 
Giovani Haryadi



On Monday, January 19, 2015 4:15 PM, "arun bhandari arynum@xxxxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:


 
Interesting project. I agree, CFD is a good tool. Owner to consider Option 3, one can think of specify insulation to the internal walls and roof. For wall deploy low U values, possibly, 0.35 (always low works) and ensure minimum heat gain from direct solar. Low e-glass coated may work, thats my two cents. Hope it works! Note: Please be considered about the climate, and surrounding zones of the level 5+void.
-Best regards,
Arun
eCUBE solution, Bangalore
--------------------------------------------
On Mon, 19/1/15, 'jeannieboef@xxxxxxxxx' jeannieboef@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

Subject: Re: [EnergyPlus_Support] Best way to simulate void (like in Mall or Mezzanine)
To: "EnergyPlus_Support@xxxxxxxxxxxxxxx" <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Date: Monday, 19 January, 2015, 12:46 PM


 









You have quite a static situation here.
CFD is probably your best bet, however, if you can measure
(or carefully guess) temperatures at different heights,
there are some very usable roomair models to consider...they
consider a temperature stratification within the one zone. I
consider this approach better that splitting the zone
vertically with clear windows and guessing at the vertical
air exchange rates.
Mit freundlichen
GrüÃ?en- Sent from my iPhone (excuse the
brevity)
i. A.Jean
Maraisb.i.g. bechtoldTel.   +49 30
6706662-23
On 19.01.2015,
at 05:51, "giovani_haryadi@xxxxxxxxx
[EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>
wrote:






 






All,
I got the
project to evaluate air conditioning at mall. The problem is
temperature in level 5 (getting heat directly from skylight)
is too high (average is 27 degree of C). Owner want to know
if we do something to skylight like adding shading or use
film can make temperature lower to comfort level. Skylight
is 21 meter from level 5. 
Then my question is how the best way to
simulate that? I consider some options :1. Modelling
1 zone cooling for level 5 and void. But I think energyplus
calculates average temperature for whole zone.2.
Using zone mixing feature. The problem is how to define the
airflow between the zone.3. Or Can we define special
material for wall or ceiling so there is really small
resistance for heat transfer between level 5 and void
?
Please let me know what do
you think the best way to solve the problem. I really hope
energyplus can offer good solution because CFD is too
expensive for owner :)
 Really appreciate for any
help.






















#yiv3592287636 #yiv3592287636 --
#yiv3592287636ygrp-mkp {
border:1px solid #d8d8d8;font-family:Arial;margin:10px
0;padding:0 10px;}

#yiv3592287636 #yiv3592287636ygrp-mkp hr {
border:1px solid #d8d8d8;}

#yiv3592287636 #yiv3592287636ygrp-mkp #yiv3592287636hd {
color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px
0;}

#yiv3592287636 #yiv3592287636ygrp-mkp #yiv3592287636ads {
margin-bottom:10px;}

#yiv3592287636 #yiv3592287636ygrp-mkp .yiv3592287636ad {
padding:0 0;}

#yiv3592287636 #yiv3592287636ygrp-mkp .yiv3592287636ad p {
margin:0;}

#yiv3592287636 #yiv3592287636ygrp-mkp .yiv3592287636ad a {
color:#0000ff;text-decoration:none;}
#yiv3592287636 #yiv3592287636ygrp-sponsor
#yiv3592287636ygrp-lc {
font-family:Arial;}

#yiv3592287636 #yiv3592287636ygrp-sponsor
#yiv3592287636ygrp-lc #yiv3592287636hd {
margin:10px
0px;font-weight:700;font-size:78%;line-height:122%;}

#yiv3592287636 #yiv3592287636ygrp-sponsor
#yiv3592287636ygrp-lc .yiv3592287636ad {
margin-bottom:10px;padding:0 0;}

#yiv3592287636 #yiv3592287636actions {
font-family:Verdana;font-size:11px;padding:10px 0;}

#yiv3592287636 #yiv3592287636activity {
background-color:#e0ecee;float:left;font-family:Verdana;font-size:10px;padding:10px;}

#yiv3592287636 #yiv3592287636activity span {
font-weight:700;}

#yiv3592287636 #yiv3592287636activity span:first-child {
text-transform:uppercase;}

#yiv3592287636 #yiv3592287636activity span a {
color:#5085b6;text-decoration:none;}

#yiv3592287636 #yiv3592287636activity span span {
color:#ff7900;}

#yiv3592287636 #yiv3592287636activity span
.yiv3592287636underline {
text-decoration:underline;}

#yiv3592287636 .yiv3592287636attach {
clear:both;display:table;font-family:Arial;font-size:12px;padding:10px
0;width:400px;}

#yiv3592287636 .yiv3592287636attach div a {
text-decoration:none;}

#yiv3592287636 .yiv3592287636attach img {
border:none;padding-right:5px;}

#yiv3592287636 .yiv3592287636attach label {
display:block;margin-bottom:5px;}

#yiv3592287636 .yiv3592287636attach label a {
text-decoration:none;}

#yiv3592287636 blockquote {
margin:0 0 0 4px;}

#yiv3592287636 .yiv3592287636bold {
font-family:Arial;font-size:13px;font-weight:700;}

#yiv3592287636 .yiv3592287636bold a {
text-decoration:none;}

#yiv3592287636 dd.yiv3592287636last p a {
font-family:Verdana;font-weight:700;}

#yiv3592287636 dd.yiv3592287636last p span {
margin-right:10px;font-family:Verdana;font-weight:700;}

#yiv3592287636 dd.yiv3592287636last p
span.yiv3592287636yshortcuts {
margin-right:0;}

#yiv3592287636 div.yiv3592287636attach-table div div a {
text-decoration:none;}

#yiv3592287636 div.yiv3592287636attach-table {
width:400px;}

#yiv3592287636 div.yiv3592287636file-title a, #yiv3592287636
div.yiv3592287636file-title a:active, #yiv3592287636
div.yiv3592287636file-title a:hover, #yiv3592287636
div.yiv3592287636file-title a:visited {
text-decoration:none;}

#yiv3592287636 div.yiv3592287636photo-title a,
#yiv3592287636 div.yiv3592287636photo-title a:active,
#yiv3592287636 div.yiv3592287636photo-title a:hover,
#yiv3592287636 div.yiv3592287636photo-title a:visited {
text-decoration:none;}

#yiv3592287636 div#yiv3592287636ygrp-mlmsg
#yiv3592287636ygrp-msg p a span.yiv3592287636yshortcuts {
font-family:Verdana;font-size:10px;font-weight:normal;}

#yiv3592287636 .yiv3592287636green {
color:#628c2a;}

#yiv3592287636 .yiv3592287636MsoNormal {
margin:0 0 0 0;}

#yiv3592287636 o {
font-size:0;}

#yiv3592287636 #yiv3592287636photos div {
float:left;width:72px;}

#yiv3592287636 #yiv3592287636photos div div {
border:1px solid
#666666;height:62px;overflow:hidden;width:62px;}

#yiv3592287636 #yiv3592287636photos div label {
color:#666666;font-size:10px;overflow:hidden;text-align:center;white-space:nowrap;width:64px;}

#yiv3592287636 #yiv3592287636reco-category {
font-size:77%;}

#yiv3592287636 #yiv3592287636reco-desc {
font-size:77%;}

#yiv3592287636 .yiv3592287636replbq {
margin:4px;}

#yiv3592287636 #yiv3592287636ygrp-actbar div a:first-child {
margin-right:2px;padding-right:5px;}

#yiv3592287636 #yiv3592287636ygrp-mlmsg {
font-size:13px;font-family:Arial, helvetica, clean,
sans-serif;}

#yiv3592287636 #yiv3592287636ygrp-mlmsg table {
font-size:inherit;font:100%;}

#yiv3592287636 #yiv3592287636ygrp-mlmsg select,
#yiv3592287636 input, #yiv3592287636 textarea {
font:99% Arial, Helvetica, clean, sans-serif;}

#yiv3592287636 #yiv3592287636ygrp-mlmsg pre, #yiv3592287636
code {
font:115% monospace;}

#yiv3592287636 #yiv3592287636ygrp-mlmsg * {
line-height:1.22em;}

#yiv3592287636 #yiv3592287636ygrp-mlmsg #yiv3592287636logo {
padding-bottom:10px;}


#yiv3592287636 #yiv3592287636ygrp-msg p a {
font-family:Verdana;}

#yiv3592287636 #yiv3592287636ygrp-msg
p#yiv3592287636attach-count span {
color:#1E66AE;font-weight:700;}

#yiv3592287636 #yiv3592287636ygrp-reco
#yiv3592287636reco-head {
color:#ff7900;font-weight:700;}

#yiv3592287636 #yiv3592287636ygrp-reco {
margin-bottom:20px;padding:0px;}

#yiv3592287636 #yiv3592287636ygrp-sponsor #yiv3592287636ov
li a {
font-size:130%;text-decoration:none;}

#yiv3592287636 #yiv3592287636ygrp-sponsor #yiv3592287636ov
li {
font-size:77%;list-style-type:square;padding:6px 0;}

#yiv3592287636 #yiv3592287636ygrp-sponsor #yiv3592287636ov
ul {
margin:0;padding:0 0 0 8px;}

#yiv3592287636 #yiv3592287636ygrp-text {
font-family:Georgia;}

#yiv3592287636 #yiv3592287636ygrp-text p {
margin:0 0 1em 0;}

#yiv3592287636 #yiv3592287636ygrp-text tt {
font-size:120%;}

#yiv3592287636 #yiv3592287636ygrp-vital ul li:last-child {
border-right:none !important;
}
#yiv3592287636





__._,_.___

Posted by: giovani haryadi <giovani_haryadi@xxxxxxxxx>


Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx

The primary EnergyPlus web site is found at:
http://www.energyplus.gov

The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/

Attachments are currently allowed but be mindful that not everyone has a high speed connection.  Limit attachments to small files.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.




Visit Your Group
Yahoo! Groups
PrivacyUnsubscribeTerms of Use

__,_._,___