Purpose -The aim of this paper is to present a generic model on using the total productive maintenance (TPM) concept in conjunction with ecology oriented manufacturing (EOM) and 5S focusing on their joint strengths in attaining organizational goals in furtherance to the equipment maintenance objectives. Design/methodology/approach -A systematic implementation-framework coupled with the standard tools, techniques and practices has been designed. The framework was applied in a large semiconductor manufacturing company. Findings -It is evident that a well drawn TPM implementation plan not only improves equipment efficiency and effectiveness but also brings appreciable improvements in other areas such as reduction of manufacturing cycle time, size of inventory, customer complaints, and creates cohesive small group autonomous teams and increases the skill and confidence of individuals. The resulting system is found to be more productive in terms of both partial and total productivity measures. This is in line with the current need of manufacturing companies to have an integrated manufacturing management system (IMMS) in order to simultaneously increasing efficiency and improving effectiveness. Practical implications -The applied framework can be mimicked by other manufacturing organizations and similar results could be brought about. As the implementation of TMP in conjunction with the EOM and 5S has come out successful, this can be combined with other manufacturing planning and control (MPC) systems (viz. JIT, MRPII/ERP) to develop an IT-based IMMS. Originality/value -The case study presented here shows that the applications of TPM through the fulfillment of its basic requirements can significantly enhance the accomplishment of organizational objectives beyond the equipment maintenance-subsystem goals and add an array of benefits in the value chain across the various functional areas.

Today, the whole world faces a great challenge to overcome the environmental problems related to global energy production. Most of the islands throughout the world depend on fossil fuel importation with respect to energy production. Recent development and research on green energy sources can assure sustainable power supply for the islands. But unpredictable nature and high dependency on weather conditions are the main limitations of renewable energy sources. To overcome this drawback, different renewable sources and converters need to be integrated with each other. This paper proposes a standalone hybrid photovoltaic- (PV-) wave energy conversion system with energy storage. In the proposed hybrid system, control of the bidirectional buck-boost DC-DC converter (BBDC) is used to maintain the constant dc-link voltage. It also accumulates the excess hybrid power in the battery bank and supplies this power to the system load during the shortage of hybrid power. A three-phase complex vector control scheme voltage source inverter (VSI) is used to control the load side voltage in terms of the frequency and voltage amplitude. Based on the simulation results obtained from Matlab/Simulink, it has been found that the overall hybrid framework is capable of working under the variable weather and load conditions.

No abstract

No abstract