5.8.3 cooling tower capacity adjustment - curve not generic about cbecc HOT 12 CLOSED

I'm not sure of an easy solution for this one. The DOE-2 curves and E+ curves 
(either CoolTools or York model) are completely different in form.

I think it would be difficult to go from the DOE-2 default curve to the 
EnergyPlus curve which has as many as 35 coefficients. Easier to go from the E+ 
curve default (if there is one) to the DOE-2 curve.

John to follow up with Mark Hydeman and/or Dick Lord

Current plan is to use DOE-2 defaults for DOE-2 and EnergyPlus defaults for 
EnergyPlus. Mark Hydeman says that both the DOE-2 and EnergyPlus curves are 
"pretty good". This is not an ideal solution but may work if the performance of 
the two is close enough. A brief investigation did not give any answers as to 
how close the two modeling approaches are.

The resolution to this issue is to use the DOE-2 default performance curve for 
towers for DOE-2 software and use the EnergyPlus CoolTools curve for E+ 
software. Taylor Engineering indicated that both DOE-2 and E+ curves are 
"pretty good". The user cannot modify the default performance curves.

To support the Cool Tools model for cooling towers, I am proposing to add a new 
object and HeatRejection reference property to support the ACM cooling tower 
capacity curve

New Object: CurveCoolToolsCoolingTowerCapacity (CrvCoolToolsClgTowerCap)
Properties: 
WetbulbTemperatureMinimum (WBTempMin)
WetbulbTemperatureMaximum (WBTempMax)
RangeTemperatureMinimum (RngTempMin)
RangeTemperatureMaximum (RngTempMax)
ApproachTemperatureMinimum (ApproachTempMin)
ApproachTemperatureMaximum (ApproachTempMax)
WaterFlowRatioMinimum (WtrFlowRatMin)
WaterFlowRatioMinimum (WtrFlowRatMax)
+ the 35 Coefficient properties (Coeff1-35)

Add the following reference property to HeatRejection object:
Capacity_fCoolToolsCurveReference (Cap_fCoolToolsCrvRef)

Please let me know if this works for you all before the next rule author 
meeting (9am next Tues)

Haven't gotten any additional input, so will plan on adding these additional 
curve types to the SDD Update list later today.

David's approach to support the CoolTools cooling tower model in EnergyPlus is 
appropriate. Let me know if any ACM changes are required.

Roger,
I was scrambling to get HVAC airside instances to NREL when I logged my last 
comment, so I never took any action on this.  Since you and Noah are now 
working on these rules, I suggest you guys add it to the SDD update list.

OK, I'll take care of it.  

I think this should be taken care of - assigning to Roger to verify that this 
has been done.

Cooling towers are now modeled with the cooltools curves in EnergyPlus.