Design of Experiments Application, Concepts, Examples: State of the Art

Design for Additive Manufacturing: Benefits, Trends and Challenges

Many manufacturing cost reduction initiatives have been introduced over past three decades including lean manufacturing. Waste reduction and efficiency improvement are the main objectives of this initiative. It is developed from a set of tools and techniques and can fit nicely in cost focus or cost leadership competitive advantage strategies. But, keeping competitive advantage under the market circumstances are getting harder with growth of production quantity and product diversity. Therefore, paper's focus is lean manufacturing implementation trends and issues within the various manufacturing sector. Successes and failures of implementation of lean manufacturing in some industries are discussed. It was found that lean principles are good source of competitive advantage, it is applicable for many industries and its expansion and discussion are significantly progressing. The biggest threat in implementing lean is lack of understanding the concept but those who engage consultants were more successful.

In this article, temperature-responsive window system based on phase change materials is studied by using experimental and numerical methods. The problem is analyzed for the real case (natural environment) and lab environment. Impact of glazing cavity size on the temperature flattening period and its limitations are determined and mathematically described. The results show that the design is effective in reducing interior air temperature variation by increasing the cavity thickness up to 24 mm, which is limited by solid/liquid volume fraction for particular environment.

In the past decades, insulation materials such as petrochemical and inorganic have been used for building insulation. The production of these insulation materials consumes a large amount of energy, which has a significant effect on the...