[EnergyPlus_Support] Several Qestions on ice stroage system modelling!

["mingming_zuo" <mingming_zuo@xxxxxxxxx>]

First, I should thank Mike for your answers to my previous questions. 
Now I try to model a ice storatge system with COMPONENT SETPOINT 
BASED OPERATION and each chiller branch includes a branch pump.In 
COMPONENT SETPOINT BASED OPERATION object, I defined charging chiller 
and ice storage tank as the first two plants as well as lower outlet 
node setpoint temperature compared to other chillers, intending to 
approximate an Ice-priority strategy.however, by examining the hourly 
energy consumption of each chiller and corresponding branch pump, 
chillers run hours dismatch dedicated pumps, which means dedicated 
pumps run continuously even when chillers stoped. I have to hilight 
that my Chiller branch pumps are defined running intermittently. In 
my opinion, when a chiller does'n run, its dedicated pump should also 
have a state of shut off, so I wonder 
1.whether COMPONENT SETPOINT BASED OPERATION tries to model a 
constant volume branch in which branch pumps will run continuously? 
2.How can I get the pump operation time  to match chiller operation 
time? 
3. Will Pump Flow Rate Schedule specified in Pump object force the 
pump to run whenever the value in this schedule is greater than 1?
4. How can I define branch pumps whose operation time is the same as 
plants in this branch who is controlled with COMPONENT SETPOINT BASED 
OPERATION?
Thank you in advance. These questions are really head-scratching for 
me!


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