[Equest-users] Factory Building with Refrigeration

[Nick Caton]

Hey Jeremy!

 

Saw this post today and what weird timing... I have another unique/interesting scenario for a project on the horizon your advice/experience seems perfect for:  A penguin exhibit for the local zoo!

 

Will have multiple zones targeting 46-48F.  This model is primarily to explore different options with regard to just what equipment really makes sense from the outset and over the long term - a ground source wellfield is on the table as a definite option, and I gather our design team is very open to using entirely separate systems for the "cool" (68-70) vs. "cold" (46-48) zones.

 

Do you think design temps in the mid-high 40's might still crunch out alright with the regular eQuest version?  I'm really not sure what to expect in the way of system options to be tossed at me, but it would help to have a solid understanding of the limitations moving forward...  I think I'd prefer to stick with the tools I'm most familiar with if they remain feasible for the task at hand.

 

Jeff/Scott:  Copying you gurus per Jeremy's advice - any thoughts?

 

Thanks fellas!

 

~Nick

 

 

 

NICK CATON, P.E.

SENIOR ENGINEER

 

Smith & Boucher Engineers

25501 west valley parkway, suite 200

olathe, ks 66061

direct 913.344.0036

fax 913.345.0617

www.smithboucher.com 

 

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Jeremy Poling
Sent: Monday, January 30, 2012 9:01 AM
To: Ömer Moltay; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Factory Building with Refrigeration

 

The refrigeration version would allow the space temperatures typical of an ice cream factory.  I can't remember the exact temperature, but you cannot model a space in the regular version of eQuest too much below 50-degrees-F.  Also, I haven't seen many industrial ammonia absorbers but ammonia is a common low-temperature refrigerant.  The refrigeration version has the components typical to a refrigeration plant (separate compressors, evaporators, and condensers) while the standard version would have to be forced into modeling it and certain components might not even be able to do that.

 

The refrigeration version is very powerful and I've used it on projects before, but it is a little bit more raw than the standard version.  We had a complex project that required both ground-source heat pumps and refrigeration and unfortunately couldn't use just one version of eQuest to model the building, which made for an interesting process.

 

I have nothing against eQuest and we ended up with a solid model due partly to the software, but if I had to do such a complex model over again I would probably pick TRNSYS instead just due to the flexibility to build in multiple unique components.  If your model is more of a standard refrigeration system, though, the refrigeration version of eQuest should be fine.  I'd recommend getting in touch with the James Hirsch team for assistance if needed since the experience on the lists tends to be thinner on this topic.  They were very helpful to us when we used the software.

 

Jeremy R. Poling, PE, LEED AP+BDC

 

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Ömer Moltay
Sent: Monday, January 30, 2012 8:27 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Factory Building with Refrigeration

 

Dear All,

We are faced with an ice cream factory where all the production spaces and finished product warehouse spaces are cooled with ammonia absorption chillers. We are trying to understand if there is any need to use the eQuest Refrigeration version? What are the advantages of this over the standard eQuest releases? As far as I know, the standard version can also model absorption chillers. In which cases does it make sense to use the Refrigeration version? What are your recommendations on how to approach modeling this building?

Thank you,

Omer Moltay, LEED AP BD+C, BREEAM Assessor 
Mimta Ltd. 
Hekimsuyu Cad. 559. Sk. No:39 
34255 Kucukkoy Istanbul Turkey 
Tel: 90-212-617-2296 
Fax: 90-212-617-2297 
www.mimtarch.com 
www.eko-yapi.net 
www.mimtasolar.com 
www.servogas.com 

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