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COMPUTERIZED MAINTENANCE
MANAGEMENT SYSTEM
By:
JOSEPH RUDENTE F. DAVID
PME 3561
BACKGROUND Cost on Breakdown Energy Consumption Inconvenience Overall Economic Effect
PURPOSE AND OBJECTIVE Monitor the different parameters of the
different modules attributed to the chilled water air conditioning system.
The computer program shall be in a passive mode, i.e., it shall display and indicate the trouble or abnormality experienced by the air conditioning system and recommend the proper correction of such trouble.
Trouble shooting will still be made manually.
GENERAL ALGORITHM
CHILLER ALGORITHM Evaporator Heat Exchanger
chilled water flow rateentering water temperature leaving water temperatureentering water pressure leaving water pressure
Cooling Effect, qCH
Working Pressure
legpmch ttQq 500
CHILLER ALGORITHM Condenser Heat Exchanger
cooling water flow rateentering water temperature leaving water temperatureentering water pressure leaving water pressure
Cooling Effect, qCH
Working Pressure
legpmcondenser ttQq 500
CHILLER ALGORITHM Chilled Water System
cooling water flow rateentering water temperature leaving water temperatureentering water pressure leaving water pressure
Cooling Effect, qCH
Working Pressure
legpmcondenser ttQq 500
CHILLER ALGORITHM
AIR HANDLER ALGORITHM Air System
air flow rateentering air temperature leaving air temperatureair differential pressureentering air relative humidity leaving air relative humidity
Cooling Effect, qAHU
Air Differential Pressure
lecfmAHU hhQq 5.4
AIR HANDLER ALGORITHM
PUMP ALGORITHM
PUMP ALGORITHM Pump System
water flow rateentering water pressure leaving water pressure
Pump Power, Ppump
elgpmpump ppQP 25.19
ELECTRIC MOTORS
ELECTRIC MOTORS Monitoring Parameters
VoltageCurrent on all phases
Electric Power, Pmotor
8.01000
3
VIPm
TROUBLE RELATIONAL DATABASE MANAGEMENT SYSTEM
A relational database management system (RDMS) shall be created for trouble identity. The algorithm for this shall be provided by the system engineering designer.