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Trends in Polymer Applications
Published in Manas Chanda, Plastics Technology Handbook, 2017
Cellular materials are used in aircraft for a number of applications including cockpit insulation, duct insulation, and vibration damping for aircraft fuselage. Monsanto’s Skybond polyimide foams have been used for sound deadening of jet engines. Solimide polyimide foams produced by Imi-Tech Corporation are said to be lightweight, fire resistant, and show good thermal and acoustic properties. They have been specified by Boeing for several aerospace applications. One space application for Solimide is cryogenic insulation for fuel tanks on major rocket propulsion systems.
A multi-criteria index to support ecodesign implementation in manufacturing products: benefits and limits in real case studies
Published in International Journal of Sustainable Engineering, 2019
Marta Rossi, Alessandra Papetti, Marco Marconi, Michele Germani
According to the outcomes of previous steps, the company efforts focused on new solutions to increase the efficiency of burners and the oven, satisfying consumers’ expectations. The redesign activities consisted in the study and optimisation of product thermo-fluid-dynamic, ergonomics and usability performance, as well as in the improvement of the control system. For this aim, the company involved heterogeneous resources on the project such as the product manager, the marketing manager and engineers of different technical departments (i.e. mechanical, electrical and automation). In particular, the stoichiometric fuel/air mixture was improved by developing a new typology of forced air burners equipped with a dedicated fan. In this way, the flame distribution resulted in flatter and allowed approaching the pan to the burner and increasing the efficiency. About the oven module, two innovations have been implemented: The installation of a gas burner in the lower part of the oven muffle, which has to operate in combination with the electric components to improve the calorific value and the heat distribution. In this way, it was possible to reduce the pre-heating time, increasing cooking performance and offering to the user a new modality of cooking;The substitution of the actual insulation (i.e. glass wool) with the Solimide® (i.e. polyimide foam certified as a fire-restricting material), which is more sustainable and able to ensure the required insulation performance.