Day 2 :
University of Ljubljana, Slovenia
Time : 09:00-09:30
Peter NOVAK completed his Ph.D. degree in Technical Sciences, University of Belgrade in 1975. Peter NOVAK was professor for HVAC, Renewable energy and Environment and dean at Faculty of Mechanical Engineering, University of Ljubljana. Hi is professor emeritus of Faculty for technology and systems, Novo mesto. Hi is owner of consultant company Energotech. At present is involved in preparation of energy concept of Slovenia for Slovenian government. He is associated with ASHRAE (Fellow and Life member). In the International Institute of Refrigeration served eight years as president of Commission E1 for Air Conditioning (now Honorary Member of IIR) and past Vice chairman of Scientific Committee at European Environmental Agency, Copenhagen (2012-2016). Hi is also honorary member of REHVA, SLOSE, and SITHOK. More than twelve years hi was served as member of Environmental Council of Slovenia.
Quality measure for of energy is exergy. Amount of exergy in energy carriers is very different and prices includs value of quantity and not of the energy quality. Exergy is measure for quality of energy, because the only part of energy available to do work is exergy. Transition to sustainable energy system, without GHG emissions, based on RE, open the questions how to evaluate exergy from solar energy. Solar energy in all form (irradiation, water flows, wind, and biomass) consists from nearly 100% of exergy. Solar energy is for free, conversion systems are not. To exploit at maximum the present infrastructure there is common agreement that we need sustainable energy system with four main energy carriers: electricity, gaseous, liquid and solid fuels. Our vision is the new Sustainable Energy System (SES) based on the biomass carbon recycling using solar and planetary energy for electricity and hydrogen production. SES is based on the existing infrastructure and known chemical processes. With regards to availability of renewable energy resources (RES) it is unrestricted in comparison to present fossil fuels use. The proposed SES consists of the three main energy carriers: electricity, synthetic methane (CH4) and synthetic methanol (CH3OH). Tha last two present also the chemical storage of solar energy.
Kingston University. London. UK
Keynote: The viability of renewable energy and energy storage for the provision of power for desalination
Time : 09:30-10:00
Dr Dansoh is a Chartered PhD qualified engineer with over 30 years’ experience in multi discipline industrial environments. He is currently a Senior Lecturer in renewable energy technologies at Kingston University in London and his subject areas of interest include biomass and biofuels, fuel cells and hydrogen, wind and solar power and ocean energy systems, such as wave and tidal power. Before entering academia in 2016, he worked in a variety of roles where he gained extensive engineering experience in the maritime environment, and of managing maritime operations, combined with ten years’ risk management experience within large transportation infrastructure projects.
This research investigates the viability of renewable energy and energy storage to meet a significant and fundamental human need (in this case, large-scale drinking water supplies) unassisted by conventional power. The use of renewable energy to power reverse osmosis desalination plants to provide potable water for around 50,000 people in Newhaven, in South East England, and in Massawa in Eritrea, was investigated. The following energy sources, in a variety of combinations were specifically assessed: • Wind Power • Wave Power • Solar Power • Tidal Current Power • Hydrogen production, storage and use in Fuel Cells The following types of reverse osmosis plants were studied: • No Brine Stream Recovery (BSR) reverse osmosis plant • Pelton Wheel BSR reverse osmosis plant • Pressure Exchanger BSR reverse osmosis plant Modelling was conducted to derive the amount of water that each reverse osmosis plant would deliver from various combinations and amounts of renewable power input, at varying feedwater temperatures. The cost of the scenarios that were able to meet the users’ water demands were compared with the costs associated with the equivalent conventionally-powered scenario over a 25-year life. Specifically, the following were considered: A coal-fired plant with carbon capture and storage (CCS) at Newhaven and A diesel generator at Massawa. This comparison was made with and without the external costs associated with conventional energy production and use. A comparison of the most financially-attractive renewable energy option and the equivalent conventionally-powered scenario at Massawa was undertaken, based on Net Present Value (NPV) methodology.
Processi Innovativi srl, Rome Italy
Time : 10:00-10:30
Annarita Salladini is a Project Manager currently working for Processi Innovativi, an engineering company owned by KT-Kinetics Technology (Rome, Italy). She received M.Sc. in Chemical Engineering and Ph.D. both from the University of L’Aquila (Italy). She joined Processi Innovativi on 2009 and since then she was involved in R&D project and Engineering Project focused on hydrogen production, renewable energy exploitation, waste conversion processes. Since 2011 she is tutor assistant at the University Campus Biomedico of Rome in the field of Analysis and Simulation of industrial chemical processes. She co-authored several scientific papers in refereed journals and chapters on international books.
With the increasing of population, waste management is becoming more and more a serious problem. The conversion of municipal solid wastes into a valuable and large consumer product could be a successful strategy. On this scenario the waste to bio-methanol route may be a valid alternative to a WtE concept, providing not only an effective waste disposal system but also contributing to the reduction of the greenhouse gases (GHG) emission. The proposed technology infact may account for a reduction of GHG emission up to 54% if compared to waste incinerator and conventional methanol production systems. Main steps involved in this conversion process include high temperature RDF gasification, syngas purification treatment and conditioning up to methanol synthesis. The strength of the proposed technology is enclosed in the gasification method itself, where the adopted operating conditions avoid any production of toxic substances. Moreover the produced syngas is synthesized into methanol molecule and any discharge to the chimney is avoided. When no other external sources are involved, about 50% of the carbon incoming with waste is fixed into methanol product with a synthesis conversion ratio equal to 2.4 ton of RDF per Ton of methanol. The resulted purified biofuel-grade methanol could impact on the market with about 450 €/ton price by exploiting the double counting directive, making it more catching in a bio-fuel economic view. The techno-economic analysis showed that the proposed technology is a valuable and sustainable example of a circular economy, approaching the target of a zero-emission plant.
Politecnico di Milan, Italy
Keynote: Sustainable Architecture in Italy: An overview on green architecture according to LEED Protocols
Time : 10: 30-11:00
Giuliano Dall’O’ is an Associate professor in Buildings Physics at Politecnico di Milan and an expert and consultant in many areas relevant to energy conservation, energy efficiency and the use of renewable energies in buildings. In the areas relevant to energy certification of buildings Giuliano is one of the leading experts at national (Italian) but also European level. Giuliano is an expert, in the professional field, in the following subjects: Energy and Sustainable Planning, Sustainable Energy Action PLan, Energy Certificationof Buildings, Energy Audit and Green Energy Audit of Buildings, Zero Energy Building Design and LEED Certification.
In recent years, green architecture is spreading around the world, reflecting a more conscious approach to sustainability by architects but also by the real estate market. Although the market growth of green buildings in many cases it is not fast, the feeling is that we have passed a point of no return and that green architecture is no longer considered experimental architecture, but a practice that is consolidating. The introduction and dissemination of international environmental certification protocols such as LEED has certainly helped to steer the market towards building recognizable models in which performance can be measured and/or evaluated on the basis of uniform criteria. The Protocols, however, necessarily introducing the elements of rigidity could modify the architectural choices, in other words, they may contaminate the Architecture of buildings. Contamination may be positive, if a certi cation protocol triggers a more environmentally-focused design, but it may also be negative, if said protocol becomes a constraint contributing to “globalizing” Architecture. The answer to the aforementioned dilemma, nurturing the cultural debate of the last decade, may only be found if one analyzes buildings through a study of the case studies of green buildings built in a certain period. The study presented in this paper is the result of a synthesis of research conducted on buildings LEED certified or undergoing certification in Italy. Of about 300 buildings that are found in this situation, 30 are analyzed in depth also from the technical point of view. The added value of this study has been the analysis of said buildings based on sustainability, allowing to look at architecture from what we consider to be a privileged point of observation.