Abstract
These days the use of the traditional (conventional) insulation materials requires greater thicknesses (e.g., up to 25 cm) in order to reach significant reduction in the heat loss and in the emission of the greenhouse gases. In some cases the use of these thicknesses cannot be implemented. In the last decade, a new direction was designated in order to decrease the insulating thicknesses furthermore, to increase insulating capability. For this the era of the nano-technological/super/advanced insulation materials started. In this article, thermal conductivity measurements carried out on advanced insulation materials (vacuum ceramic hollow micro-spheres, vacuum insulation panels, and graphite expanded polystyrene) with Holometrix Lambda 2000 type heat flow meter will be presented. These measurements will be completed with scanning electron microscope tests, and in one case with an optical microscope test. The reached thermal conductivity values give promising applicability limit of the materials.
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Acknowledgements
The publication is supported by the EFOP-3.6.1-16-2016-00022 project. The project is co-financed by the European Union and the European Social Fund. The authors would say special thanks to Dr. Sc. Samuel Brunner from Empa–Swiss Federal Laboratories for Materials Science and Technology, for the consultations regarding the vacuum insulation panels.
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Kovács, Z., Szanyi, S., Budai, I., Lakatos, Á. (2020). Laboratory Tests of High-Performance Thermal Insulations. In: Littlewood, J., Howlett, R., Capozzoli, A., Jain, L. (eds) Sustainability in Energy and Buildings. Smart Innovation, Systems and Technologies, vol 163. Springer, Singapore. https://doi.org/10.1007/978-981-32-9868-2_7
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