[Bldg-sim] Swimming Pool Modelling (Yuvaraj Saravanan)
Eric Wilson
eric.jh.wilson at colorado.edu
Tue Nov 4 15:04:35 PST 2008
Nuno,
I have used the IndoorPoolCalc.xls spreadsheet tool for analyzing indoor
pool heating and dehumidification energy.
It is available here:
http://www.energyideas.org/documents/spreadsheets/IndoorPoolCalc.xls
It can be used to find energy savings resulting from using a pool cover,
changing air/water temperature and humidity setpoints, new boiler, new
dehumidifier and so on. It is based on the Shah Method--see "Calculating
Evaporation from Indoor Water Pools", HPAC Engineering, March 2004.
I hope this helps,
Eric Wilson
University of Colorado
Dept. of Civil, Env., and Architectural Engineering
Building Systems Program
On Tue, Nov 4, 2008 at 1:01 PM, <bldg-sim-request at lists.onebuilding.org>wrote:
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> Today's Topics:
>
> 1. New Blog: Tools for Better and more Sustainable Building
> Design (Jason Glazer)
> 2. Swimming Pool Modelling (Nuno Brandao)
> 3. Performance Modeling Opening (Mathew Higgins)
> 4. Radiance: Determining Specularity Values - Spandrel Panels:
> Marble vs Fritted Glass (Pearson, Nastassja)
> 5. Re: Swimming Pool Modelling (Yuvaraj Saravanan)
> 6. IBE Consulting Engineers - Building Simulation Engineer
> Position (Patrick Wilkinson)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 03 Nov 2008 14:21:30 -0600
> From: Jason Glazer <jglazer at gard.com>
> Subject: [Bldg-sim] New Blog: Tools for Better and more Sustainable
> Building Design
> To: bldg-sim at onebuilding.org
> Message-ID: <490F5D4A.4040504 at gard.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Here is a new blog that might be of interest.
>
> http://bldgsim.wordpress.com/
>
> This blog is not related to the BLDG-SIM mailing list even
> though the name is very close.
>
> Jason
>
> --
> Jason Glazer, P.E., GARD Analytics, 90.1 ECB chair
> Admin for onebuilding.org building performance mailing lists
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 4 Nov 2008 12:30:24 +0000
> From: "Nuno Brandao" <ncostab at gmail.com>
> Subject: [Bldg-sim] Swimming Pool Modelling
> To: bldg-sim at lists.onebuilding.org
> Message-ID:
> <79c8d8d0811040430tba761f9k95d43997aa5363b6 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear bldg members,
>
> I?m trying to execute a simulation approach on a swimming pool simulation
> using EnergyPlus. I decided to write hoping you could give me some
> guidance
> help on this kind of simulation approach since Energyplus does not have a
> model for it.
>
> The objective would be to simulate the pool environment, accounting for all
> the heat transfer phenomenons, heat losses, etc., but more important the
> evaporation losses which must be treated with dehumidification equipment.
> The space must be heated and dehumidified using a standard dehumidifier
> equipment.
>
> Defining the space and boundary conditions is not difficult using the
> current geometry interfaces. At the end I would like to obtain the energy
> consumption of HVAC equipment on treating the space loads (mainly
> dehumidification and heating).
>
> Can you give me some guidance help on what have you done in your approach
> on
> EnergyPlus? Is there any other software or application which is capable of
> simulating this kind of model?
>
> Thanks in advance,
> Nuno
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> ------------------------------
>
> Message: 3
> Date: Tue, 04 Nov 2008 08:15:50 -0700
> From: Mathew Higgins <higgins at edi-arch.com>
> Subject: [Bldg-sim] Performance Modeling Opening
> To: bldg-sim at onebuilding.org
> Message-ID: <49106726.2050206 at edi-arch.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> A consulting firm with offices in New Mexico and Florida is seeking to
> hire a performance modeling specialist with 2 to 5 years experience in
> building energy and daylight modeling. Professional qualifications in
> architecture, engineering and the LEED rating system is preferred.
> Interested parties should send a letter highlighting their
> qualifications, listing experience with performance modeling programs,
> to kris at edi-arch.com.
>
> --
> Matthew Higgins, LEED AP
> Technical Specialist
> Environmental Dynamics, Inc.
> Architecture and Sustainability Consulting Services
> 505.242.2851
>
> Any data provided by the Consultant, verbal or written, are to be
> considered opinions of building energy and/or daylight performance. The
> Client understands that the Consultant has no control of occupant habits,
> equipment or material performance or characteristics, site or climate
> conditions or the Contractor's method of assembly, and that the Consultant's
> opinions regarding building energy/daylight performance are made on the
> basis of the Consultant's professional judgment and experience. The
> Consultant makes no warranty, express or implied, that the energy/daylight
> performance of the building will not vary from the Consultant's opinion of
> building energy/daylight performance.
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 4 Nov 2008 12:09:54 -0500
> From: "Pearson, Nastassja" <npearson at halsall.com>
> Subject: [Bldg-sim] Radiance: Determining Specularity Values -
> Spandrel Panels: Marble vs Fritted Glass
> To: <bldg-sim at lists.onebuilding.org>
> Message-ID:
> <3EC944427F87D84793DBBC4137A2B5AD4CD833 at to1exc02wp.halsall.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Hello All,
>
>
>
> I am trying to compare the difference in glare given off a building
> after a cladding retrofit (from the perspective of occupants in
> neighboring buildings). The original curtain wall cladding is a
> white/grey marble and glass spandrel panels with a white patterned frit
> are proposed for the retrofit. I am using Radiance in IES' Virtual
> Environment program; this is my first time using the simulation
> software.
>
>
>
> I have some questions about determining/selecting material properties,
> specifically deciding what material type (plastic/metal) and secularity
> to use for the two cladding options.
>
>
>
> Specifically how do I choose a realistic secularity value for the
> material I am using? Is there a definitive way to select a value or is
> it dependant on multiple iterations comparing how the images produced
> look? I'm trying to use the program to show me how much glare I could
> expect to see, if the results are based on constantly tweaking the
> parameters so the image "looks" right for me I don't see how the results
> can be accurate.
>
>
>
> Is a more extensive database of materials and their properties (beyond
> what is provided with the program) available? For the materials
> described below what specularity values would you recommend - and what
> is the basis behind choosing those values?
>
>
>
>
>
> My assumptions:
>
>
>
> Marble - Originally white, but panels have become grey with dirt over
> time, not polished, dull finish
>
> Type: Plastic
>
> Colour: (0.91, 0.91, 0.83)
>
> Specularity: ?????? (I think this may be low because it is not
> polished marble)
>
> Roughness: 0.05 (???)
>
>
>
>
>
>
>
> Glass Frit - Composed of: Clear glass, 60% coverage white frit, clear
> glass, 100% coverage white frit. From Window 6, I estimate the solar
> reflectance of the system to be around 25-35%.
>
>
>
> Typle: Metal ??? (Does the frit have specular and diffuse
> reflection of light?)
>
> Colour: (1.0,1.0, 1.0)
>
> Specularity: ????? (Clean polished glass)
>
> Roughness: 0.00
>
>
>
>
>
> If anyone has information from doing a similar simulation or has any
> suggestion on what specularity values I should use to model these
> materials it would be very much appreciated.
>
>
>
>
>
> Thanks,
>
>
>
> Nastassja
>
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> ------------------------------
>
> Message: 5
> Date: Tue, 4 Nov 2008 10:00:07 -0800
> From: "Yuvaraj Saravanan" <Yuvaraj.Saravanan at arup.com>
> Subject: Re: [Bldg-sim] Swimming Pool Modelling
> To: "Nuno Brandao" <ncostab at gmail.com>
> Cc: bldg-sim at lists.onebuilding.org
> Message-ID:
> <141D50E6B1F9E247BD450DA0BB288FE103814D81 at l-aexc01.global.arup.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi Nuno,
> I have not used Energyplus before. But I guess you would have to do a hand
> calculation to determine the evaporation rate and model it as a latent load.
> You could input that latent load as a plug load or even add to people latent
> load. I know that there is some ASHRAE journal/article which talks about how
> to calculate the evaporation rate in swimming pools. But unfortunately, I am
> not able to point you were to download that article. I am sure you can find
> it if you do some Google search. Hope this helps!
> If you end up modeling in a different way, please let me know. I would be
> interested to know.
> Regards,
> Yuvaraj
>
> ________________________________
>
> From: bldg-sim-bounces at lists.onebuilding.org [mailto:
> bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Nuno Brandao
> Sent: Tuesday, November 04, 2008 4:30 AM
> To: bldg-sim at lists.onebuilding.org
> Subject: [Bldg-sim] Swimming Pool Modelling
>
>
> Dear bldg members,
>
> I?m trying to execute a simulation approach on a swimming pool simulation
> using EnergyPlus. I decided to write hoping you could give me some guidance
> help on this kind of simulation approach since Energyplus does not have a
> model for it.
>
> The objective would be to simulate the pool environment, accounting for all
> the heat transfer phenomenons, heat losses, etc., but more important the
> evaporation losses which must be treated with dehumidification equipment.
> The space must be heated and dehumidified using a standard dehumidifier
> equipment.
>
> Defining the space and boundary conditions is not difficult using the
> current geometry interfaces. At the end I would like to obtain the energy
> consumption of HVAC equipment on treating the space loads (mainly
> dehumidification and heating).
>
> Can you give me some guidance help on what have you done in your approach
> on EnergyPlus? Is there any other software or application which is capable
> of simulating this kind of model?
>
> Thanks in advance,
> Nuno
>
> ____________________________________________________________
> Electronic mail messages entering and leaving Arup business
> systems are scanned for acceptability of content and viruses
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>
> ------------------------------
>
> Message: 6
> Date: Tue, 4 Nov 2008 10:04:43 -0800
> From: "Patrick Wilkinson" <patrick.wilkinson at ibece.net>
> Subject: [Bldg-sim] IBE Consulting Engineers - Building Simulation
> Engineer Position
> To: <bldg-sim at lists.onebuilding.org>
> Message-ID:
> <B9A3AA6F98276B4EB15DECA51DB7F851011DDE5B at smain07.IBECE07.local>
> Content-Type: text/plain; charset="us-ascii"
>
> IBE Consulting Engineers (IBE) is an established architectural
> engineering firm specializing in providing innovative mechanical,
> electrical, plumbing engineering and fire protection services. IBE
> provides sustainable, cost effective engineering designs that integrate
> the engineering components with the building design and architecture.
> Our approach to building design involves understanding the building
> site, architecture and program to produce a design that enhances and
> contributes to creating a sustainable built environment. IBE has a
> varied workload including high profile museums, laboratories,
> commercial, and academic facilities located throughout the United States
> and in Paris, France with several projects internationally. In recent
> years, IBE's has won several awards for its work on sustainable building
> systems.
>
>
>
> A building simulation engineer in the Advanced Technology Group (ATG)
> must have demonstrated practical experience, competence, and proven
> expertise in evaluating state-of-the-art building energy-efficiency
> technologies and managing sustainable design assistance projects. He or
> she must be experienced with hourly simulation software programs and
> industry-accepted engineering methods for evaluating energy performance
> and should be fully capable of performing all aspects of whole-building
> energy analysis associated with completing sustainable design projects.
> In addition, s/he must be able to provide quality assurance review of
> analysis methods, simulation results, and project deliverables. The
> candidate must be a team player willing to contribute to and build
> energy analysis group methods, knowledge, and capabilities. S/he should
> have a strong background in the design and operation of mechanical
> heating, ventilation, and air-conditioning (HVAC) systems and knowledge
> of the specialized HVAC requirements of highly technical facilities.
> Candidates should have experience working within the architectural
> design process and understand design team members' roles, perspectives,
> and analysis needs. A holistic understanding of whole building and
> mechanical systems and a strong commitment to state-of-the-art design
> innovations are essential.
>
>
>
> Essential Responsibilities:
>
> The building simulation engineer will be a member of Advanced Technology
> Group (ATG) within IBE Consulting Engineers Typical duties may include
> (but are not limited to) the following:
>
> o Support the ATG in delivering and documenting green building
> technologies and strategies for their projects with focus on analysis of
> energy, day lighting and/or air flow modeling of building and master
> planning projects.
>
> o Perform detailed energy modeling, evaluation of complicated
> building systems, and life-cycle-cost analysis;
>
> o Provide clear and well-written memorandums, and reports to
> various clients (building owners, architects, engineers) regarding
> project specific energy performance and modeling results;
>
> o Conduct quality assurance reviews to ensure engineering quality
> and accurate technical content of project-related documents;
>
> o Meet / contact clients as appropriate to discuss energy
> analysis methods, results and recommendations;
>
> o Prepare analyses, calculations and reports to support
> energy-related LEED components;
>
> o The building simulation engineer will be expected to become a
> LEED Accredited Professional if not already, and to remain current on
> issues related to sustainable and green building design, US Green
> Building activities, and the various versions of the LEED Green Building
> Rating System.
>
> o The building simulation engineer will also be expected to
> assist in the development and implementation of an internal
> sustainability and green building training curriculum for the firm as a
> whole.
>
>
>
> Qualifications:
>
>
>
> * Must have a Bachelor's or Master's Degree in Architecture/
> Engineering.
>
> * Expertise in complex building mechanical systems and
> state-of-the-art energy efficiency technologies/ applications;
>
> * 2-5 yrs energy modeling experience with DOE-2(eQUEST), IES Virtual
> Environment, TRNSYS, E-Plus or other detailed hourly simulation;
>
> * Demonstrated experience with additional simulation software
> programs such as Ecotect, Radiance and/or computational fluid dynamic
> software. BIM experience preferable (Revit Digital Projects or 3D
> modeling programs)
> * Demonstrated knowledge of sustainable and green building design
> and/or construction. Experience in designing/evaluating state-of-the-art
> sustainable design technologies for commercial new construction that
> might include: natural ventilation, mixed-mode ventilation, solar
> cooling, etc.
> * Preferred to be a licensed architect or professional engineer or
> approaching end of licensing process.
> * 2 or more years of increasing responsibility in all phases of
> design and technical architecture and/or engineering.
> * Demonstrated knowledge and use of the USGBC's LEED Green
> Building Rating System (NC, EB, CI, etc) and/or other green building
> rating systems. Preferred to be LEED Accredited.
> * Demonstrated ability to perform independent research on
> environmentally preferred alternative materials and strategies for
> building design, construction and operation.
> * Excellent written and verbal communication skills and commitment
> to work within the integrated design team structure.
>
>
>
>
>
> Please fax or e-mail resume/coverletter in MS Word or Adobe pdf format
> to:
>
>
>
> Patrick Wilkinson, B.Sc. ENG, LEED(r) AP
> Advanced Technology Group
>
>
> 14130 Riverside Drive Suite 201
> Sherman Oaks, CA 91423
> p: (818) 377-8220 ext. 240
> f: (818) 377-8230
>
>
>
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