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Search Results: 1 - 10 of 470568 matches for " Marc A. Rosen "
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The Prospects for Renewable Energy through Hydrogen Energy Systems  [PDF]
Marc A. Rosen
Journal of Power and Energy Engineering (JPEE) , 2015, DOI: 10.4236/jpee.2015.34050

The prospects for renewable energy are enhanced through the use of hydrogen energy systems in which hydrogen is an energy carrier. As easily accessible fossil fuel supplies become scarcer and environmental concerns increase, hydrogen is likely to become an increasingly important chemical energy carrier. As the world’s energy sources become less fossil fuel-based, hydrogen and electricity are expected to be the two dominant energy carriers for the provision of end-use services, in a hydrogen economy. Thus, hydrogen energy systems allow greater use of renewable energy resources. In this paper, the role of hydrogen as an energy carrier and hydrogen energy systems, and their economics, are described and reviewed.

Net-Zero Energy Buildings and Communities: Potential and the Role of Energy Storage  [PDF]
Marc A. Rosen
Journal of Power and Energy Engineering (JPEE) , 2015, DOI: 10.4236/jpee.2015.34065

Net-zero energy buildings and communities, which are receiving increasing interest, and the role of energy storage in them, are described. A net-zero energy building or community is defined as one that, in an average year, produces as much energy from renewable energy as it consumes. Net-zero energy buildings and communities and the manner in which energy sustainability is facilitated by them are described and examples are given. Also, energy storage is discussed and the role and importance of energy storage as part of net-zero buildings and communities are explained. The NSERC Smart Net-zero Energy Buildings Research Network, a major Canadian research effort in smart net-zero energy buildings and communities, is described.

Engineering Sustainability: A Technical Approach to Sustainability
Marc A. Rosen
Sustainability , 2012, DOI: 10.3390/su4092270
Abstract: Sustainability is a critically important goal for human activity and development. Sustainability in the area of engineering is of great importance to any plans for overall sustainability given 1) the pervasiveness of engineering activities in societies, 2) their importance in economic development and living standards, and 3) the significant impacts that engineering processes and systems have had, and continue to have, on the environment. Many factors that need to be considered and appropriately addressed in moving towards engineering sustainability are examined in this article. These include appropriate selection of resources bearing in mind sustainability criteria, the use of sustainable engineering processes, enhancement of the efficiency of engineering processes and resource use, and a holistic adoption of environmental stewardship in engineering activities. In addition, other key sustainability measures are addressed, such as economics, equity, land use, lifestyle, sociopolitical factors and population. Conclusions are provided related both to pathways for engineering sustainability and to the broader ultimate objective of sustainability.
Sustainability: A Crucial Quest for Humanity - Welcome to a New Open Access Journal for a Growing Multidisciplinary Community
Marc A. Rosen
Sustainability , 2009, DOI: 10.3390/su1010001
Abstract: Sustainability, although often hard to define precisely, is a rapidly growing area of study that is becoming increasingly applied in diverse areas. The definition put forth in 1983 by the World Commission on Environment and Development, informally known as the Brundtland Commission, captures many aspects of the topic. That commission defined sustainable development as “development that meets the needs of the present without compromising the ability of future generations to meet their own needs.” Other attempts have been made to define what we mean when we refer to sustainability or strive to achieve it as an objective. Despite the differences in definitions, a key theme that emerges is that sustainability is a concept that needs to be incorporated in many if not all of the activities that people undertake. [...]
Energy Sustainability: A Pragmatic Approach and Illustrations
Marc A. Rosen
Sustainability , 2009, DOI: 10.3390/su1010055
Abstract: Many factors to be appropriately addressed in moving towards energy sustainability are examined. These include harnessing sustainable energy sources, utilizing sustainable energy carriers, increasing efficiency, reducing environmental impact and improving socioeconomic acceptability. The latter factor includes community involvement and social acceptability, economic affordability and equity, lifestyles, land use and aesthetics. Numerous illustrations demonstrate measures consistent with the approach put forward, and options for energy sustainability and the broader objective of sustainability. Energy sustainability is of great importance to overall sustainability given the pervasiveness of energy use, its importance in economic development and living standards, and its impact on the environment.
Engineering and Sustainability: Attitudes and Actions
Marc A. Rosen
Sustainability , 2013, DOI: 10.3390/su5010372
Abstract: The results of an extensive survey of engineers and engineering students suggest there is a strong focus on the implementation of sustainability concepts, actions and measures in engineering. The main sustainable technology priorities are using less energy and natural resources, reducing emissions and material wastes, and utilizing renewable, recyclable and recycled materials. Sustainable engineering within organizations is mainly driven by regulatory requirements, rising energy costs and client demand, but challenges to sustainable engineering like economics need to be addressed to increase the incorporation of sustainability in engineering. Nonetheless, about two-thirds of practicing engineers have worked on sustainable products and processes, and over half of engineering students are involved with sustainable design in their studies.
Using Exergy to Correlate Energy Research Investments and Efficiencies: Concept and Case Studies
Marc A. Rosen
Entropy , 2013, DOI: 10.3390/e15010262
Abstract: The use of exergy to correlate energy-utilization efficiencies and energy research investments is described. Specifically, energy and exergy losses are compared with energy research and development expenditures, demonstrating that the latter correlates with energy losses, even though it would be more sensible to allocate energy research and development funding in line with exergy losses, as they represent the actual deviation of efficiency from the ideal. The methodology is outlined and illustrated with two case studies. The case studies consider the province of Ontario, Canada and the United States. The investigation utilizes data on the energy utilization in a country or region, including flows of energy and exergy through the main sectors of the economy. The results are expected to be of use to government and public authorities that administer research and development funding and resources and should help improve the effectiveness of such investments.
Sustainable Manufacturing and Design: Concepts, Practices and Needs
Marc A. Rosen,Hossam A. Kishawy
Sustainability , 2012, DOI: 10.3390/su4020154
Abstract: An investigation is reported on the importance of integrating sustainability with manufacturing and design, along with other objectives such as function, competitiveness, profitability and productivity. The need of utilizing appropriate tools like design for environment, life cycle assessment and other environmentally sound practices that are cognizant of the entire life cycle of a process or product is highlighted. It is likely that sustainability and environmental stewardship will be increasingly important considerations in manufacturing and design in the future and are likely to influence the main priorities for advancing manufacturing operations and technologies. Designers and manufacturing decision makers who adopt a sustainability focus and establish a sustainability culture within companies are more likely to be successful in enhancing design and manufacturing. It is concluded that more extensive research and collaboration is needed to improve understanding of sustainability in manufacturing and design, and to enhance technology transfer and applications of sustainability.
Using Exergy to Understand and Improve the Efficiency of Electrical Power Technologies
Marc A. Rosen,Cornelia Aida Bulucea
Entropy , 2009, DOI: 10.3390/e11040820
Abstract: The benefits are demonstrated of using exergy to understand the efficiencies of electrical power technologies and to assist improvements. Although exergy applications in power systems and electrical technology are uncommon, exergy nevertheless identifies clearly potential reductions in thermodynamic losses and efficiency improvements. Various devices are considered, ranging from simple electrical devices to generation systems for electrical power and for multiple products including electricity, and on to electrically driven. The insights provided by exergy are shown to be more useful than those provided by energy, which are sometimes misleading. Exergy is concluded to have a significant role in assessing and improving the efficiencies of electrical power technologies and systems, and provides a useful tool for engineers and scientists as well as decision and policy makers.
Improving the Sustainability of Office Partition Manufacturing: Balancing Options for Reducing Emissions of Volatile Organic Compounds
Frank S. Luisser,Marc A. Rosen
Sustainability , 2009, DOI: 10.3390/su1020234
Abstract: Options are examined to improve the sustainability of office partition manufacturing by reducing volatile organic compounds (VOC) emissions. Base VOC emissions for a typical plant are estimated using a mass balance approach. Pollution prevention and sustainability measures are assessed using realistic criteria and weightings. Sustainability has been considered from an industry perspective, considering factors like economics, environmental impact, quality, health and safety. Through a case study, it is demonstrated that several advantageous options are available for reducing VOC emissions in manufacturing office furniture partitions, and thereby enhancing the sustainability of that industrial operation. The measures deemed most viable include implementing several best management practices, not painting of non-visible parts, switching gluing processes, recycling solvent and modifying attachments. The results are intended to be balanced so as to improve their acceptability and adoptability by industry. It appears that it would be advantageous for manufacturers of office panels to evaluate the feasibility of these measures and to implement the most appropriate. The results are likely extendable to other operations in the wood furniture industry, and would improve their sustainability.
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