[Bldg-sim] TRAINING: DesignBuilder EnergyPlus Simulation Training

Jim Dirkes jim at buildingperformanceteam.com
Mon Mar 2 17:38:01 PST 2015


Thanks, Keith, but the refrigeration designer specifically said that it's
refrigerant introduced to the compressor inlet.
This makes sense to me as a capacity reduction technique, but I'm not as
well-versed in industrial refrigeration as I am in commercial
refrigeration, so I'm looking for input about how best to model it.

On Mon, Mar 2, 2015 at 5:38 PM, Keith Swartz <kswartz at ecw.org> wrote:

> Jim,
>
>
>
> Could your “economizer” be a system that simply brings in cold outside air
> during the winter? Here is an example: http://freeaire.com/ We have seen
> these in refrigerated spaces.
>
>
>
> Keith Swartz, PE, BEMP, LEED AP
>
> Senior Energy Engineer | *Energy Center of Wisconsin* |
> *Madison.Chicago.Minneapolis*
>
> 608.210.7123 | www.ecw.org
>
>
>
> *From:* Jim Dirkes [mailto:jim at buildingperformanceteam.com]
> *Sent:* Monday, March 02, 2015 12:58 PM
> *To:* bldg-sim at lists.onebuilding.org
> *Subject:* Re: [Bldg-sim] TRAINING: DesignBuilder EnergyPlus Simulation
> Training
>
>
>
> Dear Forum,
>
> The refrigerated warehouse we're modeling uses an "economizer" to help
> unload the compressors in the winter. As I understand it, the system works
> something like hot gas bypass for commercial air conditioners and routes
> hot gas to the inlet of the compressor.
>
> I don't see a direct method of modeling this, so I plan to create a
> modified capacity curve for the compressors in order to represent the
> impact of this "economizer".
>
>    1. Do you have a better idea?
>    2. Any cautions that apply to this approach from your experience?
>    3.
>
>
>
> On Sun, Jan 25, 2015 at 10:33 AM, David Cocking <
> David.Cocking at designbuilder.co.uk> wrote:
>
> DesignBuilder are running a simulation training course in collaboration
> with University College London (UCL) this April. This face to face course
> in London is an excellent opportunity to find out how to get the most out
> of DesignBuilder EnergyPlus and learn best practice modelling techniques.
> It is suitable for new and experienced users alike, and is structured to
> give you plenty of worked examples so you can 'learn by doing'. The last 2
> days will be of particular interest for those wanting to get up to speed
> with CFD and EnergyPlus HVAC system simulations. Our new VRF capability
> will be included in the Detailed HVAC day.
>
> The course is completely modular and you can choose to attend any of the 5
> days according to your particular training requirements:
>
> *Day 1: 13th April - Modeller*. To show you how to confidently and
> quickly set up building geometry, import floor plans and gbXML models, zone
> the building and define and select constructions and glazing. We’ll also
> explain how our data inheritance feature can dramatically reduce the amount
> of data input required to help speed up modelling and reduce the risk of
> input errors.
>
> *Day 2: 14th April - Basic Simulation**. Learn how to quickly model
> external influences such as non-standard ground conditions, adjacent
> buildings and shading objects; use templates for improved modelling
> efficiency; run heating and cooling designs and simulations and review
> results; easily add solar shading; and input model data such as lighting
> and HVAC efficiently.
>
> *Day 3: 15th April - Daylighting, Natural Ventilation & Renewables**. Modelling
> low environmental impact design solutions including daylighting using our
> integrated Radiance tool, natural ventilation, mixed mode, PV and wind
> turbines.
>
> *Day 4: 16th April - Introduction to Detailed HVAC**. Introducing
> EnergyPlus HVAC modelling in DesignBuilder and getting started with
> Detailed HVAC including HVAC templates to quickly load pre-configured HVAC
> systems, VRF modelling, HVAC plant loops and our Results Viewer.
>
> *Day 5: 17th April - CFD**. Learn the key concepts of internal and
> external CFD from the basic building blocks through to using simulation
> data to define boundary conditions more accurately.
>
> *Note that Days 2-5 all require previous experience with the modeller or
> attendance on Day 1.
>
> The cost of the course is £250 GBP per day, with significant discounts
> available for academia. Discounts are also available for multiple bookings.
>
> You can find out more about the UCL simulation training course (and indeed
> our extensive worldwide training schedule) by contact the office or via the
> training page on our website:
>
> http://www.designbuilder.co.uk/content/view/78/115/
>
>
>
> We hope to see you there!
>
>
>
> Dave
>
>
>
> David Cocking
>
> Director
>
> DesignBuilder Software Limited
>
> +44 (0) 1453 755500
>
> www.designbuilder.co.uk
>
>
>
>
>
>
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>
> --
>
> James V Dirkes II, PE, BEMP, LEED AP
> CEO/President
> The Building Performance Team Inc.
> 1631 Acacia Dr, GR, Mi 49504
>
> Direct: 616.450.8653
> jim at buildingperformanceteam.com
>
> Website <http://buildingperformanceteamcom>l  LinkedIn
> <https://www.linkedin.com/pub/jim-dirkes/7/444/413>
>
> The truth is like a lion; you don’t have to defend it. Let it loose; it
> will defend itself.
>



-- 

James V Dirkes II, PE, BEMP, LEED AP
CEO/President
The Building Performance Team Inc.
1631 Acacia Dr, GR, Mi 49504

Direct: 616.450.8653
jim at buildingperformanceteam.com

Website <http://buildingperformanceteamcom>l  LinkedIn
<https://www.linkedin.com/pub/jim-dirkes/7/444/413>

 The truth is like a lion; you don’t have to defend it. Let it loose; it
will defend itself.
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