Department of Industrial and Manufacturing Engineering

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Author: search.filters.author.Mutenhabundo, WinnieEnd date: 2019

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    Process Optimization Using Design for Environment Concept in the Input System of a Paint Disperser
    (International Conference on Advances in Marine, Industrial and Mechanical Engineering (ICAMIME'2014), 2014-08-15) Mutenhabundo, Winnie; Chirinda, Ngoni.; . Mugwindiri, Kumbi
    These Design for Environment has gained millennium goal commendation on Sustainable Development in order to promote green technologies. In this research, the Design for Environment concept was employed for the optimization of an input system of a water-based paint disperser in which the respirable pigment dust exceeded the threshold limit. An audit revealed waste streams and the levels of emissions and their impacts were assessed. The researchers set their objectives seeking to reduce the negative effects. A Cleaner Production Assessment was done to identify, quantify and find options to minimize wastes. ISO 14 001 was identified as a tool toimprove environmental performance. Life Cycle Assessment was done to assess the environmental aspects and the potential environmental burdens. A Design for Environment product that reduces dust emissions was identified. The synthesized product was recommended for fine tuning and prototype development. The researchers recommend Design for Environment technology for process optimization
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    IMPACT OF A PREVENTIVE MAINTENANCE PROGRAM FOR HVAC SYSTEMS IN HOSPITALS: A CASE STUDY OF KITWE CENTRAL HOSPITAL
    (International Journal of Scientific & Engineering Research,, 2013-09-01) Mutenhabundo, Winnie; Bupe, Mwanza
    he purpose of the research was to assess the benefits that come with implementing a preventive maintenance system in the hospital heating, ventilation and air-conditioning (HVAC) systems. The run-to-failure maintenance strategy of the HVAC system practiced at Kitwe central hospital affected the quality of health operations considering the increase in demand due to population growth. The researchers set objectives focusing on minimizing downtime to sustain the reliability of the equipment, lowering utility costs and greatening comfort for the building’s occupants. Initially, the types of HVAC equipment at the hospital were identified and an inventory list was developed. The Mean Time Between Failures (MTBF) of the equipment was then established together with the lead times of the inventory items. Finally, the design of a replacement program based on the gathered data was developed. With the implementation of the preventive maintenance program, the benefits of the research came doubled folded; the reliability of the HVAC equipment increased and high utility costs which were incurred due to the frequent breakdowns and poor utilization of machines and employees reduced significantly. The researchers recommend the preventive maintenance for the HVAC system not only to Kitwe hospital but to other hospital for operations enhancement in promotion of good health