[Bldg-sim] simulation program for green roof

kiopper kiopper at yahoo.it
Fri Sep 26 02:27:00 PDT 2014


Hi Shahryar 
EnergyPlus can model thermal performance of green roofs via Material:roofVegetation object developed by Portland University, see i/o ref for more info.
Unfortunately I can't give you any suggestion about acoustic performance simulation program.
Best
Alessandro Gober 


________________________________
 Da: "bldg-sim-request at lists.onebuilding.org" <bldg-sim-request at lists.onebuilding.org>
A: bldg-sim at lists.onebuilding.org 
Inviato: Giovedì 25 Settembre 2014 22:10
Oggetto: Bldg-sim Digest, Vol 82, Issue 21
 

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Today's Topics:

   1. simulation program for green roof (shahryar habibi)
   2. Re: General query - impact of location on energy demand
      (Jeetendra Kumar)
   3. 90.1-2010 Baseline lighting power allowance calculation
      (Jones, Christopher)
   4. Re: General query - impact of location on energy demand
      (Javed Iqbal)
   5. Re: 90.1-2010 Baseline lighting power allowance    calculation
      (Cheney)
   6. Re: General query - impact of location on energy demand
      (Jim Dirkes)



 Dear Colleagues,

Would you tell me, please, which simulation program can simulate performance of green roofs.I would be grateful if you 
could kindly guide me by offering any information . I am planning to simulate performance of one the building in terms of 
energy and acoustic through green roof.

Thanks in advance for any help and advice



Shahryar Habibi, architect

PhD candidate in  Architectural Technology 
University of Ferrara, Department of Architecture


          



 
Hi All,

Thank you for the responses.

Brian: your reply shows a comparison which I was looking for, although the data you shared seems different from what's available from EIA and Eurostat.

Jim: Thanks for pointing out the "comfort expectations" aspect. This adds a dimension that seems difficult to analyze - gap analysis for different locations. Please share if you can suggest any source for comfort benchmarks.

Shanta: for conciseness, I'd skipped what you pointed out, but sure this has to be accounted for. Thanks for pointing this out. Also, for suggesting the ASHRAE tables and the link.

Jeremiah: didn't know about the link. Thanks. Shall try checking that soon. 


Well, I would like to ask you the following question(the reason for my earlier questions):

Do you think our understanding of the impact of location on energy and emissions, esp due to natural factors, can be used for planning where should we build cities in future, to fight global warming?

For now, just a no/yes is fine.

Looking forward to your views.

Sincerely,

Jeetendra. 



________________________________
From: jcrossett at phasechange.com
Date: Wed, 24 Sep 2014 10:15:57 -0700
To: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] General query - impact of location on energy demand


If you do not already know about this- there is a weather related comfort tool called climate consultant that you may want to look into. It uses EPW files and shows general passive design strategies effectiveness.  http://www.energy-design-tools.aud.ucla.edu/climate-consultant/request-climate-consultant.php





​​Jeremiah D. Crossett  | Senior Analyst  | LEED Green Associate ​​120 E. Pritchard St.  | Asheboro, NC 27203 ​​ | Mobile 503-688-8951www.phasechange.com 
  




On Wed, Sep 24, 2014 at 10:00 AM, Jim Dirkes <jim at buildingperformanceteam.com> wrote:

In addition to Shanta’s comments, consider that “comfort” is not the same around the world.  I spoke with a colleague not long ago who indicated that 30C was acceptable for many buildings in Pune, India.  That is not true for most of North America!  Other countries will probably also have differing comfort expectations.
> 
>James V Dirkes II, PE, BEMP, LEED AP
>www.buildingperformanceteam.com
>Energy Analysis, Commissioning & Training Services
>1631 Acacia Drive, Grand Rapids, MI 49504USA
>616 450 8653
> 
>From:Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Shanta Tucker
>Sent: Wednesday, September 24, 2014 12:46 PM
>To: Jeetendra Kumar; bldg-sim at lists.onebuilding.org
>Subject: Re: [Bldg-sim] General query - impact of location on energy demand
> 
>Jeetendra,
> 
>For item 2, I suggest that you review a table of heating and cooling degree days. These tables are published in the ASHRAE Handbook of Fundamentals and include cities from all over the world. The cities with the lowest of each will form the answer to your question.
> 
>For item 1, I recommend that you revise your question as it is not possible to build the same building in every climate. Different countries/cities have building codes that would restrict you from doing so. But if you want to have some fun, you could take the prototypical building models and simulate them for the different cities you are interested in. http://www.energycodes.gov/commercial-prototype-building-models
> 
> 
>--
>Shanta Tucker, PE, LEED AP BD+C, ASHRAE BEMP 
>Associate Director
> 
>Atelier Ten
>Environmental Design Consultants + Lighting Designers
> 
>45 East 20th Street, 4th Floor
>New York NY 10003
>T +1 (212) 254 4500 x 210
>F +1 (212) 254 1259
>shanta.tucker at atelierten.com
> 
>www.atelierten.com
> 
>From:Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Jeetendra Kumar
>Sent: Wednesday, September 24, 2014 12:11 PM
>To: bldg-sim at lists.onebuilding.org
>Subject: [Bldg-sim] General query - impact of location on energy demand
> 
>Hi All,
> 
>Please share your answers to/views on the following queries.
> 
>1. How significant is the impact of location - different continents/countries - of a building on its energy demand? You may assume these are similar to each other on all aspects except for their location. Please share any examples, if possible, e.g. Sweden versus Texas.
> 
>2. Could you cite examples of cities where the natural weather, for maximum possible days, is comfortable for humans. So, cities where least possible heating and cooling is required.
> 
>Regards,
> 
>Jeetendra.
>India.
> 
>
>________________________________________________________________________
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I am somewhat confused about calculating the baseline lighting power calculation, Space-By-Space method, with respect to lighting controls.
 
For example, Table G3.1 states “Lighting shall be modeled having the automatic and manual controls in Section 9.4.  For a Conference/Meeting/Multipurpose room the LPD is 1.23 W/ft2.  9.4.1.2.(b) states that a conference room shall have an occupancy sensor.  Does this mean that the LPD is reduced by the factor listed in Table G3.2 is 10% for occupancy sensor in buildings greater than 5000 ft2.  So would the LPD for the baseline conference room be 1.23 * 0.9 = 1.1?
 
Thanks for your assistance!
 
 
Christopher Jones,P.Eng.
Tel: 416.644.4226 • Toll Free: 1.888.425.7255 x 527
 
______________________________________________________________________
NOTICE: This communication and any attachments ("this message") may contain confidential information for the sole use of the intended recipient(s). Any unauthorized use, disclosure, viewing, copying, alteration, dissemination or distribution of, or reliance on this message is strictly prohibited. If you have received this message in error, or you are not an authorized recipient, please notify the sender immediately by replying to this message, delete this message and all copies from your e-mail system and destroy any printed copies.

I would recommend referring following research papers on comfort benchmark worldwide. These are available on Elsevier:

Comfort assessment in the context of sustainable buildings: Comparison of simplified and detailed human thermal sensation methods

Thermal comfort conditions in sustainable buildings e Results of a worldwide survey of users’ perceptions




On Thu, Sep 25, 2014 at 9:58 PM, Jeetendra Kumar <jitendra_kr at hotmail.com> wrote:

Hi All,
>
>
>Thank you for the responses.
>
>
>Brian: your reply shows a comparison which I was looking for, although the data you shared seems different from what's available from EIA and Eurostat.
>
>
>Jim: Thanks for pointing out the "comfort expectations" aspect. This adds a dimension that seems difficult to analyze - gap analysis for different locations. Please share if you can suggest any source for comfort benchmarks.
>
>
>Shanta: for conciseness, I'd skipped what you pointed out, but sure this has to be accounted for. Thanks for pointing this out. Also, for suggesting the ASHRAE tables and the link.
>
>
>Jeremiah: didn't know about the link. Thanks. Shall try checking that soon. 
>
>
>Well, I would like to ask you the following question(the reason for my earlier questions):
>
>
>Do you think our understanding of the impact of location on energy and emissions, esp due to natural factors, can be used for planning where should we build cities in future, to fight global warming?
>
>
>For now, just a no/yes is fine.
>
>
>Looking forward to your views.
>
>
>Sincerely,
>
>
>Jeetendra. 
>
>
>
>________________________________
>From: jcrossett at phasechange.com
>Date: Wed, 24 Sep 2014 10:15:57 -0700
>To: bldg-sim at lists.onebuilding.org
>
>Subject: Re: [Bldg-sim] General query - impact of location on energy demand
>
>
>If you do not already know about this- there is a weather related comfort tool called climate consultant that you may want to look into. It uses EPW files and shows general passive design strategies effectiveness.  http://www.energy-design-tools.aud.ucla.edu/climate-consultant/request-climate-consultant.php
>
>
>
>
>
>
>​​Jeremiah D. Crossett  | Senior Analyst  | LEED Green Associate ​​120 E. Pritchard St.  | Asheboro, NC 27203 ​​ | Mobile 503-688-8951www.phasechange.com 
>  
>
>
>
>
>
>
>
>On Wed, Sep 24, 2014 at 10:00 AM, Jim Dirkes <jim at buildingperformanceteam.com> wrote:
>
>In addition to Shanta’s comments, consider that “comfort” is not the same around the world.  I spoke with a colleague not long ago who indicated that 30C was acceptable for many buildings in Pune, India.  That is not true for most of North America!  Other countries will probably also have differing comfort expectations.
>> 
>>James V Dirkes II, PE, BEMP, LEED AP
>>www.buildingperformanceteam.com
>>Energy Analysis, Commissioning & Training Services
>>1631 Acacia Drive, Grand Rapids, MI 49504USA
>>616 450 8653
>> 
>>From:Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Shanta Tucker
>>Sent: Wednesday, September 24, 2014 12:46 PM
>>To: Jeetendra Kumar; bldg-sim at lists.onebuilding.org
>>Subject: Re: [Bldg-sim] General query - impact of location on energy demand
>> 
>>Jeetendra,
>> 
>>For item 2, I suggest that you review a table of heating and cooling degree days. These tables are published in the ASHRAE Handbook of Fundamentals and include cities from all over the world. The cities with the lowest of each will form the answer to your question.
>> 
>>For item 1, I recommend that you revise your question as it is not possible to build the same building in every climate. Different countries/cities have building codes that would restrict you from doing so. But if you want to have some fun, you could take the prototypical building models and simulate them for the different cities you are interested in. http://www.energycodes.gov/commercial-prototype-building-models
>> 
>> 
>>--
>>Shanta Tucker, PE, LEED AP BD+C, ASHRAE BEMP 
>>Associate Director
>> 
>>Atelier Ten
>>Environmental Design Consultants + Lighting Designers
>> 
>>45 East 20th Street, 4th Floor
>>New York NY 10003
>>T +1 (212) 254 4500 x 210
>>F +1 (212) 254 1259
>>shanta.tucker at atelierten.com
>> 
>>www.atelierten.com
>> 
>>From:Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Jeetendra Kumar
>>Sent: Wednesday, September 24, 2014 12:11 PM
>>To: bldg-sim at lists.onebuilding.org
>>Subject: [Bldg-sim] General query - impact of location on energy demand
>> 
>>Hi All,
>> 
>>Please share your answers to/views on the following queries.
>> 
>>1. How significant is the impact of location - different continents/countries - of a building on its energy demand? You may assume these are similar to each other on all aspects except for their location. Please share any examples, if possible, e.g. Sweden versus Texas.
>> 
>>2. Could you cite examples of cities where the natural weather, for maximum possible days, is comfortable for humans. So, cities where least possible heating and cooling is required.
>> 
>>Regards,
>> 
>>Jeetendra.
>>India.
>> 
>>
>>________________________________________________________________________
>>This e-mail has been scanned for all viruses by Star. The
>>service is powered by MessageLabs. For more information on a proactive
>>anti-virus service working around the clock, around the globe, visit:
>>http://www.star.net.uk
>>________________________________________________________________________
>>
>>________________________________________________________________________
>>This e-mail has been scanned for all viruses by Star. The
>>service is powered by MessageLabs. For more information on a proactive
>>anti-virus service working around the clock, around the globe, visit:
>>http://www.star.net.uk
>>________________________________________________________________________
>>_______________________________________________
>>Bldg-sim mailing list
>>http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
>>To unsubscribe from this mailing list send  a blank message to BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG
>>
>>
>
>_______________________________________________
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>
>


-- 


Javed Iqbal, LEED AP, CEA
Sr. Energy Analyst


Yes, it is what I understand for ASHRAE appendix G baseline but not NECB baseline. 


Best Regards, 
Cheney
Connect with me and view my  http://lnkd.in/bqQf52i

On Thu, Sep 25, 2014 at 9:51 AM, Jones, Christopher <cjones at halsall.com> wrote:

I am somewhat confused about calculating the baseline lighting power calculation, Space-By-Space method, with respect to lighting controls.
> 
>For example, Table G3.1 states “Lighting shall be modeled having the automatic and manual controls in Section 9.4.  For a Conference/Meeting/Multipurpose room the LPD is 1.23 W/ft2.  9.4.1.2.(b) states that a conference room shall have an occupancy sensor.  Does this mean that the LPD is reduced by the factor listed in Table G3.2 is 10% for occupancy sensor in buildings greater than 5000 ft2.  So would the LPD for the baseline conference room be 1.23 * 0.9 = 1.1?
> 
>Thanks for your assistance!
> 
> 
>Christopher Jones,P.Eng.
>Tel: 416.644.4226 • Toll Free: 1.888.425.7255 x 527
> 
>______________________________________________________________________
>NOTICE: This communication and any attachments ("this message") may contain confidential information for the sole use of the intended recipient(s). Any unauthorized use, disclosure, viewing, copying, alteration, dissemination or distribution of, or reliance on this message is strictly prohibited. If you have received this message in error, or you are not an authorized recipient, please notify the sender immediately by replying to this message, delete this message and all copies from your e-mail system and destroy any printed copies.
>
>_______________________________________________
>Bldg-sim mailing list
>http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
>To unsubscribe from this mailing list send  a blank message to BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG
>
>

Jeetendra,
My opinion regarding your question: No (Impact of location on energy is not specially relevant.)
 
I wonder about your assumptions: I’ve seen sources which say that the globe has not warmed in over a decade.  This is different than many climate models’ predictions and suggests that we don’t understand very well the impact of humans on the globe’s climate. One of my ardent wishes is that the climate discussion would become more scientific and less political.  At the moment, it seems hard to filter data from polemic. 
I think it is very important to use resources wisely for a variety of reasons other than “climate change”, but principal among them is to promote human flourishing.  Energy is a GOOD thing and even has a strong correlation to health and prosperity; limiting it’s availability, as has been part of recent discussion in the US, for many parts of the world might mean that they remain without refrigeration or reasonable heating and cooling  – not so good for those people’s health and well-being.  Wasteful use or polluting are a different matter than thoughtful use.  I haven’t thought this through in great detail, but it seems that wise use of energy in one country makes more available for others at lower cost.  I like that thought.
 
 
James V Dirkes II, PE, BEMP, LEED AP
www.buildingperformanceteam.com
Energy Analysis, Commissioning & Training Services
1631 Acacia Drive, Grand Rapids, MI 49504USA
616 450 8653
 
From:Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Javed Iqbal
Sent: Thursday, September 25, 2014 1:12 PM
To: Jeetendra Kumar
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] General query - impact of location on energy demand
 
I would recommend referring following research papers on comfort benchmark worldwide. These are available on Elsevier:
 
Comfort assessment in the context of sustainable buildings: Comparison of simplified and detailed human thermal sensation methods
 
Thermal comfort conditions in sustainable buildings e Results of a worldwide survey of users’ perceptions
 
 
 
On Thu, Sep 25, 2014 at 9:58 PM, Jeetendra Kumar <jitendra_kr at hotmail.com> wrote:
Hi All,
 
Thank you for the responses.
 
Brian: your reply shows a comparison which I was looking for, although the data you shared seems different from what's available from EIA and Eurostat.
 
Jim: Thanks for pointing out the "comfort expectations" aspect. This adds a dimension that seems difficult to analyze - gap analysis for different locations. Please share if you can suggest any source for comfort benchmarks.
 
Shanta: for conciseness, I'd skipped what you pointed out, but sure this has to be accounted for. Thanks for pointing this out. Also, for suggesting the ASHRAE tables and the link.
 
Jeremiah: didn't know about the link. Thanks. Shall try checking that soon. 
Well, I would like to ask you the following question(the reason for my earlier questions):
 
Do you think our understanding of the impact of location on energy and emissions, esp due to natural factors, can be used for planning where should we build cities in future, to fight global warming?
 
For now, just a no/yes is fine.
 
Looking forward to your views.
 
Sincerely,
 
Jeetendra. 

________________________________

From: jcrossett at phasechange.com
Date: Wed, 24 Sep 2014 10:15:57 -0700
To: bldg-sim at lists.onebuilding.org

Subject: Re: [Bldg-sim] General query - impact of location on energy demand
If you do not already know about this- there is a weather related comfort tool called climate consultant that you may want to look into. It uses EPW files and shows general passive design strategies effectiveness.  http://www.energy-design-tools.aud.ucla.edu/climate-consultant/request-climate-consultant.php


 
 
​​
Jeremiah D. Crossett  | Senior Analyst  | LEED Green Associate 
​​
120 E. Pritchard St.  | Asheboro, NC 27203 
​​
 | Mobile 503-688-8951
www.phasechange.com 
  
 
 
 
 
On Wed, Sep 24, 2014 at 10:00 AM, Jim Dirkes <jim at buildingperformanceteam.com> wrote:
In addition to Shanta’s comments, consider that “comfort” is not the same around the world.  I spoke with a colleague not long ago who indicated that 30C was acceptable for many buildings in Pune, India.  That is not true for most of North America!  Other countries will probably also have differing comfort expectations.
 
James V Dirkes II, PE, BEMP, LEED AP
www.buildingperformanceteam.com
Energy Analysis, Commissioning & Training Services
1631 Acacia Drive, Grand Rapids, MI 49504 USA
616 450 8653
 
From:Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Shanta Tucker
Sent: Wednesday, September 24, 2014 12:46 PM
To: Jeetendra Kumar; bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] General query - impact of location on energy demand
 
Jeetendra,
 
For item 2, I suggest that you review a table of heating and cooling degree days. These tables are published in the ASHRAE Handbook of Fundamentals and include cities from all over the world. The cities with the lowest of each will form the answer to your question.
 
For item 1, I recommend that you revise your question as it is not possible to build the same building in every climate. Different countries/cities have building codes that would restrict you from doing so. But if you want to have some fun, you could take the prototypical building models and simulate them for the different cities you are interested in. http://www.energycodes.gov/commercial-prototype-building-models
 
 
--
Shanta Tucker, PE, LEED AP BD+C, ASHRAE BEMP 
Associate Director
 
Atelier Ten
Environmental Design Consultants + Lighting Designers
 
45 East 20th Street, 4th Floor
New York NY 10003
T +1 (212) 254 4500 x 210
F +1 (212) 254 1259
shanta.tucker at atelierten.com
 
www.atelierten.com
 
From:Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Jeetendra Kumar
Sent: Wednesday, September 24, 2014 12:11 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] General query - impact of location on energy demand
 
Hi All,
 
Please share your answers to/views on the following queries.
 
1. How significant is the impact of location - different continents/countries - of a building on its energy demand? You may assume these are similar to each other on all aspects except for their location. Please share any examples, if possible, e.g. Sweden versus Texas.
 
2. Could you cite examples of cities where the natural weather, for maximum possible days, is comfortable for humans. So, cities where least possible heating and cooling is required.
 
Regards,
 
Jeetendra.
India.
 

________________________________________________________________________
This e-mail has been scanned for all viruses by Star. The
service is powered by MessageLabs. For more information on a proactive
anti-virus service working around the clock, around the globe, visit:
http://www.star.net.uk
________________________________________________________________________

________________________________________________________________________
This e-mail has been scanned for all viruses by Star. The
service is powered by MessageLabs. For more information on a proactive
anti-virus service working around the clock, around the globe, visit:
http://www.star.net.uk
________________________________________________________________________

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-- 
 
Javed Iqbal, LEED AP, CEA
Sr. Energy Analyst
_______________________________________________
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