No subject


Wed Mar 16 13:13:09 PDT 2011


initial learning and picking up projects again months down the line.
 
COST
DesignBuilder initial purchase cost is much lower than IES . One should
also bear in mind total cost of ownership rather than just initial purchase
cost when making the decision, including consideration of time taken to
learn software and the time it takes to create a building model.
 
HVAC MODELING
IES  has a flexible modular HVAC modeling capability, but it takes a
relatively long time to learn and set up a particular model. It does not
model water side.
 
DesignBuilder has compact HVAC which allows typical HVAC systems to be
modeled quickly and easily, but is currently lacking in flexibility.
DesignBuilder version 1.3 (to be released end May) will be a significant
improvement with almost full implementation of EnergyPlus compact HVAC
systems. Many advanced DesignBuilder users use the software for exporting
EnergyPlus IDF building descriptions for more detailed modeling in the
EnergyPlus editor.  DesignBuilder version 2 (to be released early 2008) will
have a full diagrammatic modular HVAC UI providing access to most of the
EnergyPlus HVAC systems.
 
OTHER CAPABILITIES
IES  has a much wider range of other applications linked into the
virtual environment including pipe and duct sizing, radiance, CFD, 3-D CAD
interoperability through gbXML. 
 
DesignBuilder is a more focused building energy simulation, thermal design
and visualization product. DesignBuilder version 2 will have high-quality
CFD simulations and 3-D CAD interoperability through gbXML (as well as the
above-mentioned diagrammatic EnergyPlus HVAC editor). 


Best regards,

Mahabir 

_______________________________________________
Mahabir Bhandari, Ph.D.
LEED® Accredited Professional
DesignBuilder Software
18 Tanglewood Rd.
Amherst, MA 01002
 
Tel: (413) 256-4647
Fax: (413) 256-4823
cell: (413) 575-6825
email: bhandari at designbuildersoftware.com
web: http://www.designbuildersoftware.com
 
 

________________________________________
From: Josh K [mailto:jeemang at gmail.com] 
Sent: Wednesday, May 16, 2007 3:58 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] IES  vs DesignBuilder

I work for an architectural firm that hired me to gain building energy
modeling capabilities. As they've never done this before, the first order of
business is selecting an application to carry out said building energy
modeling. 

Taking a preliminary survey of the available applications and comparing them
with our criteria yielded two "finalists":  DesignBuilder and the IES .
I've been demoing each of them for a little while and reading the
documentation, and although I've definitely been able to identify some pros
and cons for each, I feel I lack the experience/knowledge to make a
definitive decision. 

If anyone uses or has used either of these programs, has any opinion of
them, or has even heard rumours about them circulating about the grape vine,
any insights they could offer would be greatly appreciated.

Thanks,

Josh



Josh Kjenner, EIT
Manasc Isaac Architects Ltd.
10225 100 Ave :: Edmonton, AB T5J OA1
780.429.3977


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Pongsak Chaisuparasmikul Ph.D, DOE 2.1E Consultant 
3140 South Michigan Avenue, #604 
Chicago, IL 60616-3807 U.S.A. 
Phone: +1 312 225 4610 
Fax: +1 775 368 3267
  pongsak_archenergy at sbcglobal.net
  
Model ideas and experience of the sustainability design, and simulate energy efficient building in the virtual environment first before construction is ever created in the real world to avoid mistake, time consuming, and unneccessary cost.



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Mahabir,<br><br>I think you forgot to mention one of the most important comparison between DesignBuilder and IES : is that IES has the modeling capabilities through BIM and DesignBuilder through CAD,which make a much difference in term of accuracy,quality,speed,coordination,and linked to the other applications.<br><br>Pongsak<br><br>PS As an independent DOE-2 consultant and researcher,one of my job is to unbiased test,examine,verify the software and offer truthful public information to the best of my knowledge.Every software has its own capabilities and users should know before they invest their money,time and effort.<br><br><br><b><i>Mahabir Bhandari <Bhandari at DesignBuildersoftware.com></i></b> wrote:<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> Josh,<br><br>In my opinion, here are some points of comparison between DesignBuilder and<br>IES <VE>: <br><br> <br>GENERAL BUILDING SIMULATION
 CAPABILITIES<br>DesignBuilder and IES <VE> have quite similar capabilities for modeling<br>fabric, solar shading, internal gains, daylighting, natural ventilation etc.<br>DesignBuilder simulation is carried out using DOE EnergyPlus simulation<br>engine and the IES <VE> simulations use the Apache simulator.<br> <br>EASE OF USE<br>From the feedback we have had, DesignBuilder is much easier to use than IES<br><VE> both from the point of view of time taken to carry out a project,<br>initial learning and picking up projects again months down the line.<br> <br>COST<br>DesignBuilder initial purchase cost is much lower than IES <VE>. One should<br>also bear in mind total cost of ownership rather than just initial purchase<br>cost when making the decision, including consideration of time taken to<br>learn software and the time it takes to create a building model.<br> <br>HVAC MODELING<br>IES <VE> has a flexible modular HVAC modeling capability, but it takes a<br>relatively long
 time to learn and set up a particular model. It does not<br>model water side.<br> <br>DesignBuilder has compact HVAC which allows typical HVAC systems to be<br>modeled quickly and easily, but is currently lacking in flexibility.<br>DesignBuilder version 1.3 (to be released end May) will be a significant<br>improvement with almost full implementation of EnergyPlus compact HVAC<br>systems. Many advanced DesignBuilder users use the software for exporting<br>EnergyPlus IDF building descriptions for more detailed modeling in the<br>EnergyPlus editor.  DesignBuilder version 2 (to be released early 2008) will<br>have a full diagrammatic modular HVAC UI providing access to most of the<br>EnergyPlus HVAC systems.<br> <br>OTHER CAPABILITIES<br>IES <VE> has a much wider range of other applications linked into the<br>virtual environment including pipe and duct sizing, radiance, CFD, 3-D CAD<br>interoperability through gbXML. <br> <br>DesignBuilder is a more focused building energy
 simulation, thermal design<br>and visualization product. DesignBuilder version 2 will have high-quality<br>CFD simulations and 3-D CAD interoperability through gbXML (as well as the<br>above-mentioned diagrammatic EnergyPlus HVAC editor). <br><br><br>Best regards,<br><br>Mahabir <br><br>_______________________________________________<br>Mahabir Bhandari, Ph.D.<br>LEED® Accredited Professional<br>DesignBuilder Software<br>18 Tanglewood Rd.<br>Amherst, MA 01002<br> <br>Tel: (413) 256-4647<br>Fax: (413) 256-4823<br>cell: (413) 575-6825<br>email: bhandari at designbuildersoftware.com<br>web: http://www.designbuildersoftware.com<br> <br> <br><br>________________________________________<br>From: Josh K [mailto:jeemang at gmail.com] <br>Sent: Wednesday, May 16, 2007 3:58 PM<br>To: BLDG-SIM at gard.com<br>Subject: [BLDG-SIM] IES <VE> vs DesignBuilder<br><br>I work for an architectural firm that hired me to gain building energy<br>modeling capabilities. As they've never done this before,
 the first order of<br>business is selecting an application to carry out said building energy<br>modeling. <br><br>Taking a preliminary survey of the available applications and comparing them<br>with our criteria yielded two "finalists":  DesignBuilder and the IES <VE>.<br>I've been demoing each of them for a little while and reading the<br>documentation, and although I've definitely been able to identify some pros<br>and cons for each, I feel I lack the experience/knowledge to make a<br>definitive decision. <br><br>If anyone uses or has used either of these programs, has any opinion of<br>them, or has even heard rumours about them circulating about the grape vine,<br>any insights they could offer would be greatly appreciated.<br><br>Thanks,<br><br>Josh<br><br><br><br>Josh Kjenner, EIT<br>Manasc Isaac Architects Ltd.<br>10225 100 Ave :: Edmonton, AB T5J OA1<br>780.429.3977<br><br><br>=====================================================You received this e-mail because
 you are subscribed<br>to the BLDG-SIM at GARD.COM mailing list.  To unsubscribe<br>from this mailing list send a blank message to<br>BLDG-SIM-UNSUBSCRIBE at GARD.COM<br><br></VE></VE></VE></VE></VE></VE></VE></VE></VE></blockquote><br><BR><BR><div><span style="color: rgb(255, 128, 128);"><span style="color: rgb(0, 0, 0);">Pongsak Chaisuparasmikul Ph.D, DOE 2.1E Consultant</span> </span><br><font style="color: rgb(139, 139, 139);" color="#7f7f00">3140 South Michigan Avenue, #604 <br>Chicago, IL 60616-3807 U.S.A. <br>Phone: +1 312 225 4610 <br>Fax: +1 775 368 3267</font></div>  <div style="color: rgb(139, 139, 139);"><a href="mailto:pongsak_archenergy at sbcglobal.net">pongsak_archenergy at sbcglobal.net</a></div>  <div><br><span style="color: rgb(255, 127, 0);"><font color="#438059">Model ideas and experience of the sustainability design, and simulate energy efficient building in the virtual environment first before construction is ever created in the real
 world to avoid mistake, time consuming, and unneccessary cost.</font></span><br></div>
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