Quincy QSV 2200, Instruction Manual

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Section V - Options
78 Quincy Vacuum Pump-QSV Series
Suspended solids (ppm)
Type of cooling system Standard Energy recovery
Single pass < 10 < 1
Recirculating (with tower) < 10 not applicable
Closed loop < 10 < 1
12. Oil or grease
< 1 ppm (rejection value)
13. Biology
If biology is present, it must be aerobic. Anaerobic biology (in closed systems) must be avoided.
Biology (CFU/ml)
Type of cooling system Standard Energy recovery
Single pass < 10
5
/ < 10
7
< 10
3
/ < 10
5
Recirculating (with tower) < 10
5
/ < 10
7
not applicable
Closed loop
< 10 3 / < 10
5
< 10 3 / < 10
5
The table shows the recommended values. The values in bold are rejection limits.
NOTICE!
If additives are used in the cooling water, take into account that the cooling capacity will change.
?m = ((Cpw - Cpa) * X) / (Cpw *(1-X) + X*Cpa) * 100 % with
?m: change of mass flow of the coolant Cpw: specific heat capacity of water
Cpa: specific heat capacity of the additives X: the percentage of additives X: the percentage of
additives
.
5.6 Energy recovery data
Reference conditions
See section Reference conditions and limitations.
Effective working pressure
Consult section vacuum pump data for the normal working pressure.
Maximum allowed pressure of the heat exchanger
Oil side 22 bar (319 psi)
Water side 15 bar (217 psi)
Recoverable energy
The recoverable energy can be calculated from:
RECOVERED ENERGY (kW) = 4.2 x water flow (l/s) x water temperature rise (ºC) In the tables below,
typical examples are given.