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.