[Bldg-sim] Swimming pool lighting with 90.1

[Julien.Dutel at mern.gouv.qc.ca]

Hi Nick,

The question was for a demonstrating prescriptive compliance.
Thanks for your quick and detailed answer  (I’m really surprised that we could invoke an outdoor lighting exception for an interior lighting!)

Julien

De : Nicholas Caton [mailto:ncaton at catonenergy.com]
Envoyé : 4 juin 2015 11:54
À : Dutel, Julien (BEIE); bldg-sim at lists.onebuilding.org
Objet : RE: [Bldg-sim] Swimming pool lighting with 90.1

Hi Julien,

For either case, and even if the pools are interior to the building, I would consider citing “Lighting for swimming pools and water features” is under the exempted list for exterior lighting power calculations under 90.1-2010, and more broadly “athletic playing areas” under 90.1-2007.

Evoking that exception, you could

A)     have the baseline match the proposed (for a PRM model),

B)      omit that lighting power entirely (for demonstrating prescriptive compliance), or else

C)      the stage is then set for you to differentiate from the baseline by demonstrating how your design saves energy relative to “standard” pool lighting by way of separate/exceptional calculations.

If you want to wrap into your interior LPD regardless,

1.       Gymnasium/Sports Arena/Exercise Center seem to be the likely candidates for BAM.

2.       Class I through Class IV comes from IESNA Handbook/RP-6, and is used to differentiate illuminance recommendations based upon the degree of competition (ranging from professional/national at Class I down to amateur/recreational at class IV).  I’d suggest having your lighting designer determine which set of illumination recommendations best matches the photometric calculations for pool surface/deck surface illumination.

~Nick

NICK CATON, P.E.
Owner

Caton Energy Consulting
  1150 N. 192nd St., #4-202
  Shoreline, WA 98133
  office:  785.410.3317
www.catonenergy.com

From: Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org<mailto:bldg-sim-bounces at lists.onebuilding.org>] On Behalf Of Julien.Dutel at mern.gouv.qc.ca<mailto:Julien.Dutel at mern.gouv.qc.ca>
Sent: Thursday, June 04, 2015 7:42 AM
To: bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>
Subject: [Bldg-sim] Swimming pool lighting with 90.1

Hello,

I have two concrete cases where I’m embarrassed regarding lighting in a swimming pool with 90.1.

Case 1 : A swimming pool building (the building  is a swimming pool)
In the lighting section of 90.1, the Building Area Method (9.5) has no building area type corresponding specifically to a swimming pool. My guess would be to choose the “Gymnasium” because as a swimming pool, there is high ceiling and locker room.

Using the Building Area Method, is the “Gymnasium” a correct assumption for a swimming pool building ?

Case 2 : A swimming pool in a residential building
  Assuming that the “multifamily”’s LPD doesn’t allow me to  comply to the Building Area Method, and I decide to choose the space by space method. My guess would be to choose a building-specific space type in the list “Sport Arena”, but I’m block by these unanswered question<http://energy-models.com/forum/energy-modeling-software/trace-700/leed-and-ashrae-901/lighting-power-density-space-space-meth> : what is the meaning of the class ? :

•         Court sport arena – class 4

•         Court sport arena – class 2

•         Court sport arena – class 1

Using the Space by Space Method, what would be the best building-specific space type for the area dedicated to the pool ?


Thanks,

Julien

Julien Dutel, ing., CEM, CMVP.
Direction des secteurs résidentiel, institutionnel et des affaires
Bureau de l'efficacité et de l'innovation énergétiques
Ministère des Ressources naturelles
5700, 4e Avenue Ouest, B-406
Québec (Québec)  G1H 6R1
Téléphone : 418 627-6379, poste 8060
Téléphone sans frais : 1 877 727-6655
Télécopieur : 418 643-5828
 http://www.efficaciteenergetique.mrn.gouv.qc.ca<http://www.efficaciteenergetique.mrn.gouv.qc.ca/>
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