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 ;).
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.
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
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