[Equest-users] Modeling a Pool Dehumidifier

[Aaron Smith]

Hi Kyle,

 

I've modeled a pool dehumidification unit by inserting the latent load in as
an internal process load so it doesn't show up on a utility meter:

 



 

 

Then I've been able to simulate condenser heat recovery for reheat purposes
using the MAX-COND-RCVRY and WASTE-HEAT-USE keywords.  

 



 

I think MAX-COND-RCVRY was greyed out in eQUEST so I may have had to enter
it in the .inp file first to get it to work, see below.  I used 90% to be
conservative but I think my unit said 100% was possible.

 

"AHU-3: Pool" = SYSTEM          

   TYPE             = PSZ

   HEAT-SOURCE      = HOT-WATER

   BASEBOARD-SOURCE = NONE

   MAX-SUPPLY-T     = 120

   MIN-SUPPLY-T     = 70

   MAX-HUMIDITY     = 60

   SUPPLY-FLOW      = 23053

   OA-CONTROL       = FIXED

   RECOVER-EXHAUST  = YES

   MAX-OA-FRACTION  = 0.11

   FAN-SCHEDULE     = "Pool Fan Annual Sched"

   SUPPLY-KW/FLOW   = 0.000533

   RETURN-KW/FLOW   = 9.1e-005

   NIGHT-CYCLE-CTRL = CYCLE-ON-ANY

   EXHAUST-FAN-SCH  = "Pool Fan Annual Sched"

   HW-VALVE-TYPE    = TWO-WAY

   HW-LOOP          = "MT Hot Water Loop"

   COOLING-CAPACITY = 465400

   COOLING-EIR      = {1/(10.47/3.412)}

   COOL-SH-CAP      = 256240

   MAX-COND-RCVRY   = 0.9

   OUTSIDE-FAN-T    = 0

   HEATING-CAPACITY = -498506

   CONDENSER-TYPE   = AIR-COOLED

   WASTE-HEAT-USE   = SPACE-HEAT

   CONTROL-ZONE     = "(Pool) Pool (Z.22)"

   ERV-RECOVER-TYPE = HEAT-PIPE

   ERV-SENSIBLE-EFF = 0.45

   ERV-SEN-FILM-RES = 0.001

   ERV-SEN-FILM-EXP = 0.0001

   ERV-TEMP-CTRL    = FIXED-SETPT

   OA-HEAT-SETPT-T  = 55

   OA-COOL-SETPT-T  = 55

   ERV-CAP-CTRL     = BYPASS-EXHAUST

   ERV-FAN-EFF      = 1

   ERV-OA-STATIC    = 0

   ERV-EXH-STATIC   = 0

 

Good Luck,

Aaron

 

Aaron Smith, P.Eng 

M&R Engineering 

  _____  

From: Nick Caton [mailto:ncaton at smithboucher.com] 
Sent: Monday, March 10, 2014 4:17 PM
To: Kyle Reger; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Modeling a Pool Dehumidifier

 

Two individuals much smarter than myself were discussing PoolPak equipment,
and the challenges of modeling pool dehumidification more generally, about a
year ago on the lists - I've attached that conversation, maybe this will
help turn the gears ;).

 

~Nick

cid:489575314 at 22072009-0ABB

 

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 Kyle Reger
Sent: Monday, March 10, 2014 11:58 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Modeling a Pool Dehumidifier

 

Hello eQUEST Users,

 

I am new to eQuest and trying to model a PoolPak dehumidifier for a pool
room. Can somebody help me accomplish this?

 

Thanks,

 

Kyle Reger | Engineering Technician

Ramaker & Associates, Inc.  | 1120 Dallas Street, Sauk City, WI 53583

Office: 608-643-4100 Ext.270

 <mailto:kreger at ramaker.com> kreger at ramaker.com

 <http://www.ramaker.com/> www.ramaker.com

 <http://www.buildawaterpark.com/> www.buildawaterpark.com

 

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