[Equest-users] Energy Efficiency of Gym

RobertWichert robert at wichert.org
Mon May 13 07:28:26 PDT 2013


VFD pumps have become a big deal hereabouts recently. EnergyPro even
installed a module to calculate pumping energy.


Robert Wichert P.Eng. LEED AP BD&C
+1 916 966 9060
FAX +1 916 966 9068







===============================================

On 5/13/2013 6:59 AM, Busman, Michael R wrote:
>
> Robert,
>
> Thanks for jogging my memory. I totally forgot about swimming pools.
>
> If there is an adjacent or nearby air conditioned space, a heat pump
> water heater could be considered using the pool as a heat sink. Or a
> small power generation system and use the waste heat for pool heating.
>
> Although not totally energy savings related and probably best
> calculated in a spreadsheet, the chemical treatment, filtration, and
> pumping systems should be looked at.
>
> If part of maintaining the pool water chemistry includes the use of
> sodium bicarbonate, going to a CO2 injection system can be low hanging
> fruit with a payback in chemical usage of about 2 years or less.
> Chlorine pumps are generally a maintenance headache. Using a venturi
> type chlorine injection system can provide good maintenance savings.
>
> Pool filters are generally of the sand filter type or diatomaceous
> earth type. Sand filters have high backwash requirements with a
> considerable amount of water, heat, and chemical being dumped to
> drain. Diatomaceous earth filters have high pressure drops, requiring
> more pumping power. In both cases, pool pumps need to be sized for
> worst case conditions of the filters being plugged. Perlite media
> filters are pretty much self-cleaning with low backwash requirements
> and low pressure drop, allowing the use of a VFD to vary flow rate
> between occupied and unoccupied periods.
>
> Mike Busman
>
> *From:*equest-users-bounces at lists.onebuilding.org
> [mailto:equest-users-bounces at lists.onebuilding.org] *On Behalf Of
> *RobertWichert
> *Sent:* Monday, May 13, 2013 6:33 AM
> *To:* equest-users at lists.onebuilding.org
> *Subject:* Re: [Equest-users] Energy Efficiency of Gym
>
> If they have a heated swimming pool or spa, make sure they have a good
> insulated cover.
>
>
>
> Robert Wichert P.Eng. LEED AP BD&C
> +1 916 966 9060
> FAX +1 916 966 9068
>  
>  
>  
>  
>  
>  
>  
> ===============================================
>
> On 5/13/2013 6:23 AM, Busman, Michael R wrote:
>
>     Gyms typically have metal halide or other HID lighting that
>     remains on all day due to the long strike-off time to turn the
>     lights back on if they’ve been turned off.
>
>     A good retrofit is to replace them with high output T-5
>     fluorescent fixtures at significantly lower wattage. Additionally,
>     these are instant on and can be controlled by occupancy sensing
>     controls for maximum savings. If the gym has skylights, you can
>     also use bi-level or other daylighting controls.
>
>     Mike
>
>     *Michael R. Busman, CEM*
>
>     Lead Project Engineer II
>
>     *Chevron Energy Solutions*
>
>     A Division of Chevron U.S.A., Inc.
>
>     145 S. State College Blvd.
>
>     Brea, CA 92821
>
>     Direct 714-671-3561
>
>     Fax 714-671-3438
>
>     eFax 866-420-0335 (Include my Full Name followed by "CAI:MHTZ" on
>     Cover Sheet)
>
>     Mobile 310-387-2083
>
>     mbusman at chevron.com <mailto:mbusman at chevron.com>
>
>     *From:*equest-users-bounces at lists.onebuilding.org
>     <mailto:equest-users-bounces at lists.onebuilding.org>
>     [mailto:equest-users-bounces at lists.onebuilding.org] *On Behalf Of
>     *Dionisio Franca
>     *Sent:* Monday, May 13, 2013 5:28 AM
>     *To:* 一叶扁舟
>     *Cc:* equest-users
>     *Subject:* Re: [Equest-users] Energy Efficiency of Gym
>
>     Dear Aaron,
>
>     For the schedule, it really depends on the project you are working
>     at I think.
>     The gym I frequent uses fans in addition to the cooling, that can
>     be a energy efficiency strategy.
>     Good luck,
>     Dionisio
>
>     On May 13, 2013 4:57 PM, "一叶扁舟" <546751190 at qq.com
>     <mailto:546751190 at qq.com>> wrote:
>
>     Dear all
>
>     I run into a gym project, does anyone has any materials on gym?
>     such as schedule, energy efficiency strategy and so on. I will be
>     very appriciated for your help. Thank you
>
>     Best wishes.
>
>     Aaron
>
>
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