Masjuki Hj. Hassan

TPM can go beyond maintenance: excerpt from a case implementation

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...

Survey and case investigations on application of quality management tools and techniques in SMIs

Quality management (QM) cannot be assured unless some objective assessments are undertaken. A number of tools and techniques are available to conduct such analysis. Although some of them are product or service specific, however, a few basic tools and techniques are commonly used in manufacturing firms. This study focuses on the state of application of QM tools and techniques in small and medium industries (SMIs). The findings reveal that by‐and‐large, lack of methodical analysis is a major weakness of SMIs. Still some rule‐of‐thumb and subjective observations are dominating over objective evaluation in the process of quality control decisions. A few case studies which have been conducted, and one that has been briefly reported here, also support this conclusion. The methodology of the study has three folds: literature review, survey in SMIs and case studies.

State of implementation of TPM in SMIs: a survey study in Malaysia

Applications of systems like total quality management (TQM), total productive maintenance (TPM) and just‐in‐time (JIT) have been studied mainly in large industries with little attention being paid to small and medium industries (SMIs) in developing countries. This paper discusses the state of implementation of TPM in SMIs and the effects of lack of productive maintenance. The main hypothesis is to determine if SMIs have understood the importance of a productive maintenance system as a constituent of manufacturing management. A survey methodology has been applied for this test. The outcomes of some case studies are kept in mind. All these show that the implementation of TPM or preventive maintenance in SMIs is still low. Therefore, more effort should be given to developing a better understanding, motivation and participation for implementation of productive maintenance systems. Finally, an implementation methodology is proposed.

Improving Engine Oil Properties by Dispersion of hBN/Al2O3 Nanoparticles

This paper provides oil properties study of conventional diesel engine oil enriched with hBN/Al2O3 nanoparticles. In this study, an optimal composition (0.5 vol.%) of hBN and Al2O3 nanoparticles separately dispersed in SAE 15W40 diesel engine oil by sonication technique. The oil properties were studied by measuring the Viscosity Index (VI), Total Acid Number (TAN), Total Base Number (TBN) and flash point temperature. The results reveal that the nano-oil with hBN nanoparticles could improves or at least maintain the key lubrication properties, though the TAN value is slightly increased. The results presented here may facilitate improvements in the conventional diesel engine oil performance.

The Effects of Injection Parameters on the Performance of Common Rail Light Duty Engine Fueled with Palm Oil Biodiesel

It is in the interest of proponents of biodiesel to increase the utilization of the renewable fuel. The similarities of the methyl ester properties to diesel fuel and its miscibility proved to be an attractive advantage. It is however generally accepted that there are some performance and emissions deficit when a diesel engine is operated with biodiesel. There are research efforts to improve the diesel engine design to optimize the combustion with biodiesel. Since the common rail engines operates on flexible injection strategies, there exist an opportunity to improve engine performance and offset the fuel economy deficit by means of optimizing the engine control strategies. This approach may prove to be more practical and easily implemented. This study investigated the effects of the fuel injection parameters - rail pressure, injection duration and injection timing - on a common rail passenger car engine in terms of the fuel economy. Palm oil based biodiesel up to 30% blend in diesel was used in this study. The end of injection, (EOI), was found to be the most important parameter for affecting fuel consumption and thermal efficiency.

Determination of Time Variant 1D-3D Temperature and Heat Transfer Distribution Inside The Cooling Jacket of A SI Engine Cooling System After Key-Off

This research work focuses on the unsteady heat transfer and temperature distribution over the engine cooling jackets. The efforts are gestated to generate the time dependent effects of heat transfer from the combustion chamber to the cooling jacket of a 4 cylinder 1.6 L cam-profile switching system SI engine. The characteristic behavior of heat transfer to the coolant at lower speed (idle speed/ traffic signal) or when the engine is shut down after driving the vehicle for a significant period manifests unstable temperature rise with respect to time. It has been observed that the temperature of the coolant inside the jacket rises up within a very short period of time. It can be a case due to the shut off of the actuators (coolant pump, fan) which helps the cooling system to take effect according to the demand of the thermal efficiency of the engine. A one dimensional transient cooling system analysis and a 3D CFD analysis of the cooling jacket according to the emulated conditions of real case also shows that temperature instability with respect to time. But this high temperature of the coolant inside the jacket can affect the engine structure as it is a thermal load to the system and the coolant is motion less. As the thermal behavior has been observed as a time dependent variable the challenge of removing that residual heat inside the cooling jacket, the time period can help to maintain the effective cooling system irrespective of the engine speed. The effect of time variant temperature changes have been observed both in normal thermostatic valve condition (i.e. 82±2 0C to 96±2 0C) as well as in nucleate boiling condition of isolated vapor bubble temperature zone. The authors found both the 1D transient and 3D CFD analysis quite reliable as they have devoted a significant amount of computational facilities to perform the analysis. File Size: 6993K Product Status: In Stock See papers presented at SAE 2012 World Congress & Exhibition, April 24, 2012, Detroit, Michigan, United States Purchase more technical papers and save! With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay. Learn more > Email a Friend HTML for Linking to this Page Copy and paste this code into your Web site to create a link to this page. Page URL Copy and paste this address to create a link on your Web site or to send in an Email. Delivery Method List Price Member Price* Add to Cart Download

Design, Modification and Testing of a Catalytic Converter for Natural Gas Fueled Engines

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Fabrication and Performance of Ceramic Er123 Oxygen Gas Sensor

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Physical and mechanical properties of quarry dust waste incorporated into fired clay brick

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Performance and emission of a common rail passenger car engine fuelled with palm oil biodiesel

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