Abstract
This research work identified strategies to effectively maintain the gas turbine power plant as to improve on productivity. The main aim is to determine the effect of a good maintenance culture on the reliability of gas turbine power plant operation, to evaluate the loss of revenue due to high rate of intervention (or failure) in the power plant. Materials were collected from the manufacturers manual, maintenance report log sheet, production report log book/sheets, intervention schedule programmes, mechanical vibration analyzer machines, machine lubrication schedule/plan, Instrumentation calibration manuals and plants simulation model log books/sheets, human machine interface system (HMI) as well as the equipment control and monitoring machine (ECM), self administered questionnaire and internet system. The collated data were analyzed with the aid of number of intervention, mean time between failures (MTBF), mean time to repair (MTTR), production yield, loss of revenue equations as well as responses from returned questionnaires to determine the effect of adequate maintenance of the power plant on productivity. The analysis revealed a negative growth rate in productivity resulting from poor performance of the gas turbine power plant in the year (2013-2017) due to poor maintenance culture. There has been colossal loss of revenue due to incessant shutdown of power plant which also affects the process plants. From the result of five years average yield of Notore historical products cost per day for two major products namely; ammonia and urea amounted to N0.1104B. In other words, for one production year, revenue of N36.4 Billion would have been received but due to high plant down-time for maintenance intervention, the company lost about N0.851Billion in a year. This is a huge loss to Notore Chemical Industries Plc.
Highlights
In the new age of industrialization and even in everyday life, electrical energy is regarded as the most required form of energy
Using the data collected from the gas turbine power plant and utilities, maintenance and production as shown in Table I to Table V together with the equations in section 2, the gas turbine power plant behavior in respect of its mechanical vibration level, power output, plant availability and percentage product yield is shown in Fig. 1 to 5
This research work has been able to determine the effectiveness of a good maintenance culture on the reliability of Notore gas turbine Power plant operation via the analysis of the mechanical vibration levels, power output generation, power plant availability, loss of production and loss of revenue due to high rate of intervention
Summary
In the new age of industrialization and even in everyday life, electrical energy is regarded as the most required form of energy. In the middle of the eighteenth through twentieth century, the industrial world strived and prospered This was limited to the absence of robust power generation system. The gas turbine is a complex stationary machine used for the efficient generation of electric power to run industrial equipment to meet production needs. They are usually standalone units or in conjunction with steam power plants either as cogeneration or combined cycle gas turbine where the exhaust gas serves as a heat source for steam generation. In every sector today, there is a high drive towards the use of gas turbine because of its comparative advantages over the internal combustion engines
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