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EVALUATION OF MOTOR BEARING CONDITION IN COMBINED CYCLE POWER PLANT USING VIBRATION ANALYSIS

Electrical motor is a device that converts electrical to mechanical energy to perform a specified job and it is very significant in any plant. Any sudden failure in an electrical motor shall cause effect on the plant performance and monetary loss to the plant. Similarly, in a combined cycle power pl...

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Main Author: SATHESWARAAN A/L EDWARD RAVI
Format: text::Thesis
Language:English
Published: 2023
Subjects:
SKF Microlog GX Series CMXA 75
MOTOR BEARING CONDITION
CYCLE POWER PLANT
Low Pressure Feedwater Pump Motor (LPFW)
Cooling Tower (CT)
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spelling my.uniten.dspace-194962023-05-05T13:08:40Z EVALUATION OF MOTOR BEARING CONDITION IN COMBINED CYCLE POWER PLANT USING VIBRATION ANALYSIS SATHESWARAAN A/L EDWARD RAVI SKF Microlog GX Series CMXA 75 MOTOR BEARING CONDITION CYCLE POWER PLANT Low Pressure Feedwater Pump Motor (LPFW) Cooling Tower (CT) Electrical motor is a device that converts electrical to mechanical energy to perform a specified job and it is very significant in any plant. Any sudden failure in an electrical motor shall cause effect on the plant performance and monetary loss to the plant. Similarly, in a combined cycle power plant, many critical motors where those motors and loads must run non-stop without failures. Any failure will eventually cause downtime and production loss. Therefore, a proper maintenance philosophy and analysis can lead to proper motor maintenance in line with optimized time and cost. This study evaluated the condition of critical motor in combined cycle power plant using vibration analysis with SKF Microlog GX Series CMXA 75. This study also proposed the precision maintenance schedule subject to maintenance time and cost for critical motor. A comparison between precision maintenance and predictive maintenance cost of critical motor were established. Two critical motors were selected which are Low Pressure Feedwater Pump Motor (LPFW) and Cooling Tower (CT) Fan Motor. LPFW motor function to feed water to Heat Recovery Steam Generator (HRSG) LP section whereas CT fan motor is used to cool down the condensate water coming out from steam turbine condenser. The results of the vibration will reflect the performance of the motor and the maintenance action plan needed to be taken if required. Vibration data were collected in gravity energy (gE) peak to peak and mm/s (millimeter per second). The data then analyzed through the SKF software and Microsoft Excel. Standard results for motor less than 132kW size, vibration shall be lower than 2.0gE and 2.0mm/s respectively depending on the motor specification and its application. The maintenance cost is calculated and compared with the cost of maintenance without this vibration analyses. The cost comparison shows that, performing vibration analyses and detecting the defect or root cause in earlier stage will be cost effective compared to the defect worsen. By taking vibration data, the fault can be predicted and detected in early stage and can be eliminated with lower cost compared to without taking vibration data. 2023-05-03T13:34:57Z 2023-05-03T13:34:57Z 2020-09 Resource Types::text::Thesis https://irepository.uniten.edu.my/handle/123456789/19496 en application/pdf
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
language English
topic SKF Microlog GX Series CMXA 75
MOTOR BEARING CONDITION
CYCLE POWER PLANT
Low Pressure Feedwater Pump Motor (LPFW)
Cooling Tower (CT)
spellingShingle SKF Microlog GX Series CMXA 75
MOTOR BEARING CONDITION
CYCLE POWER PLANT
Low Pressure Feedwater Pump Motor (LPFW)
Cooling Tower (CT)
SATHESWARAAN A/L EDWARD RAVI
EVALUATION OF MOTOR BEARING CONDITION IN COMBINED CYCLE POWER PLANT USING VIBRATION ANALYSIS
description Electrical motor is a device that converts electrical to mechanical energy to perform a specified job and it is very significant in any plant. Any sudden failure in an electrical motor shall cause effect on the plant performance and monetary loss to the plant. Similarly, in a combined cycle power plant, many critical motors where those motors and loads must run non-stop without failures. Any failure will eventually cause downtime and production loss. Therefore, a proper maintenance philosophy and analysis can lead to proper motor maintenance in line with optimized time and cost. This study evaluated the condition of critical motor in combined cycle power plant using vibration analysis with SKF Microlog GX Series CMXA 75. This study also proposed the precision maintenance schedule subject to maintenance time and cost for critical motor. A comparison between precision maintenance and predictive maintenance cost of critical motor were established. Two critical motors were selected which are Low Pressure Feedwater Pump Motor (LPFW) and Cooling Tower (CT) Fan Motor. LPFW motor function to feed water to Heat Recovery Steam Generator (HRSG) LP section whereas CT fan motor is used to cool down the condensate water coming out from steam turbine condenser. The results of the vibration will reflect the performance of the motor and the maintenance action plan needed to be taken if required. Vibration data were collected in gravity energy (gE) peak to peak and mm/s (millimeter per second). The data then analyzed through the SKF software and Microsoft Excel. Standard results for motor less than 132kW size, vibration shall be lower than 2.0gE and 2.0mm/s respectively depending on the motor specification and its application. The maintenance cost is calculated and compared with the cost of maintenance without this vibration analyses. The cost comparison shows that, performing vibration analyses and detecting the defect or root cause in earlier stage will be cost effective compared to the defect worsen. By taking vibration data, the fault can be predicted and detected in early stage and can be eliminated with lower cost compared to without taking vibration data.
format Resource Types::text::Thesis
author SATHESWARAAN A/L EDWARD RAVI
author_facet SATHESWARAAN A/L EDWARD RAVI
author_sort SATHESWARAAN A/L EDWARD RAVI
title EVALUATION OF MOTOR BEARING CONDITION IN COMBINED CYCLE POWER PLANT USING VIBRATION ANALYSIS
title_short EVALUATION OF MOTOR BEARING CONDITION IN COMBINED CYCLE POWER PLANT USING VIBRATION ANALYSIS
title_full EVALUATION OF MOTOR BEARING CONDITION IN COMBINED CYCLE POWER PLANT USING VIBRATION ANALYSIS
title_fullStr EVALUATION OF MOTOR BEARING CONDITION IN COMBINED CYCLE POWER PLANT USING VIBRATION ANALYSIS
title_full_unstemmed EVALUATION OF MOTOR BEARING CONDITION IN COMBINED CYCLE POWER PLANT USING VIBRATION ANALYSIS
title_sort evaluation of motor bearing condition in combined cycle power plant using vibration analysis
publishDate 2023
_version_ 1806428213538193408
score 13.211869

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