Parallel Layout With 2 Set-Points

 

The Cristopia Parallel Layout with Two Set-Point

 

The Cristopia Parallel Layout with Two Set-Point : Charge Mode

Charge Mode

This is the normal operating mode for nighttime hours. As shown on the shematic, the chiller runs to cool the brine and to crystallize the nodules. The chiller is controlled by the leaving temperature controller. In charge mode the flow is from the bottom to the top of the tank.
The Cristopia Parallel Layout with Two Set-Point : Discharge Only

Discharge Only

This condition corresponds either to peak electricity tariff where the chiller is off or to back-up. The STL meets the load without the help of the chiller.
The Cristopia Parallel Layout with Two Set-Point : Direct Production + Charge

Direct Production + Charge

This is the operating mode for nighttime hours when there is a low demand. As shown on the shematic, the chiller runs to cool the brine and to crystallize the nodules, and supplies in the same time the demand (limited to 10-15 % of the chiller capacity). The chiller is controlled by the leaving temperature controller.
The Cristopia Parallel Layout with Two Set-Point : Direct Production + Discharge

Direct Production + Discharge

This is the normal operating mode for partial storage systems during daytime hours. This situation occurs when the cooling load is higher than the chiller capacity. The 3-way-valve controls the leaving temperature to the demand.
The Cristopia Parallel Layout with Two Set-Point : Direct Production Direct Production

This is the same operation as a conventional system (without STL). In this mode the entire load is met directly by the chiller. This situation occurs when the load is lower than the chiller capacity.