D. Eliche-Quesada
University of Jaen, Spain
Title: Recycling of olive pomace bottom ash for fired clay bricks
Submitted Date: 20/07/2015
Biography
Dolores Eliche Quesada is Associate Professor of Materials Science and Metallurgical Engineering of the University of Jaen, Chemical Engineer by the University of Granada and PhD in Sciences by the University of Malaga. Her research focuses on the valorization of waste in construction materials relating the microstructure of ceramic materials obtained with its physical, mechanical and thermal properties. She is author and co-author of more than 45 communications at national and international conferences, as well as more than 25 publications in international journals. She is associate editor of the Magazine Journal of Minerals and Materials
Abstract
Olive pomace bottom ash was used to replace different amount (10-50 wt %) of clay in brick manufacturing. The aims are both, stuying bricks properties and showing a new way of olive pomace bottom ash recycling. The properties of waste bricks were compared to conventional products following standard procedures in order to determinate the maximum waste percentaje. The amount of olive pomace bottom ash is limited to 20 wt%, obtaining bricks with superior engineering properties adding 10 wt % of waste. The addition of higher amount of waste, gives rise to bricks that are on the edge of meet the values of water absorption and compressive strength established by UNE standards. Therefore, the addition of 10 and 20 wt % of olive pomace bottom ash gives rise to bricks with a bulk density of 1635 and 1527 kg / m3 and a compressive strength of 33.9 MPa and 14.2 MPa respectively. Fired bricks fulfill standards requirements for clay masonry units at the same gets a better thermal insulation of the buildings due to a reduction of the thermal conductivity of 14.4% and 16.8% respectively respect to the control bricks (only clay)
José Pablo Paredes Sánchez
University of Oviedo, Spain
Title: Biocoal as an alternative to biomass
Submitted Date: 20/07/2015
Biography
J. P. Paredes-Sánchez, is a lecturer in the Energy Department at the University of Oviedo. He received his PhD in Energy Engineering at the University of Oviedo in 2010 and has been associated with renewable energy projects in the Oviedo Higher Technical School of Mining Engineering since 2007. He is the author or co-author of more than 15 papers and conferences on renewable energy and journals. He has published 5 books about university education and 1 book about research. He is also involved in EU programmes for updating renewable energy research and higher education
Abstract
The future use of coal is strategic as it has applications in the energy or steel industries and in the modern economic development, but conditioned on corrective action resulting from the allocation of allowances of Greenhouse Gases (GHG). Biofuels are one of the energy resources of interest in the transition to a sustainable energy model for being a renewable resource reducer of CO2 emissions. Given this energy scene, the renewable fuels development for both thermal and electric applications and the analysis of the manufacturing process with the technology currently available is of industrial interest before a future of strong demand in view of the energy policies in the Northern Europe under the EU or in countries like the US and Canada. Biocoal is a type of fuel obtained by a thermochemical process which combines drying, thermal decomposition and pyrolysis of organic matter stages, better known in the food industry as roasting. Such biofuel can overcome barriers such as heterogeneity, handling difficulty and low energetic density of the raw material favoring the use of biomass, even the residual one, as fuel and, therefore, reducing storing, management and transport costs. It also helps to expand the biomass feedstock to be used with the inclusion of both agricultural and forest biomass. The purpose of this work is to present biocoal as an energy self-sufficiency improvement since it can be used as a substitute for fossil fuel resources which would reduce the amount of CO2 emitted in the world\r\n
