scholarly journals Energy potentials worldwide and their importance in cellulose and paper industry

2008 ◽  
Vol 62 (4) ◽  
pp. 223-232
Author(s):  
Vladimir Valent ◽  
Milorad Krgovic ◽  
Marina Krsikapa ◽  
Srecko Nikolic
Keyword(s):  
Alternative Energy ◽  
Energy Use ◽  
New Technologies ◽  
Paper Industry ◽  
Electric Energy ◽  
Energy Sources ◽  
Alternative Energy Sources

The available worldwide energy sources are presented. The applications of energy over the next period are considered in this study. The applications and the importance of alternative energy sources is reviewed. The emphasis is put on the necessity of developing new technologies and rationalization of energy use. The data regarding heat and electric energy, along with water applications in cellulose and paper industry are also given.

scholarly journals Biomass availability in eastern Ontario for bioenergy and wood pellet initiatives

2011 ◽  
Vol 87 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Rachele Levin ◽  
Sally Krigstin ◽  
Suzanne Wetzel
Keyword(s):  
Rural Economy ◽  
Alternative Energy ◽  
New Technologies ◽  
Energy Sources ◽  
Wood Biomass ◽  
Wood Pellet ◽  
Alternative Energy Sources ◽  
Eastern Ontario ◽  
Biomass Availability ◽  
The Right

Interest in wood-based bioenergy and pelletization is growing in Ontario, and the province is taking steps to encouragethese new technologies. A survey of eastern Ontario sawmills was conducted to assess residue production and availabilityfor bioenergy and pellet applications. Approximately 259 000 oven dry tonnes of sawmill residues are produced annuallyin eastern Ontario, but most of this fibre is absorbed by existing markets and would not be available for bioenergy orpellet initiatives. However, another source of wood fibre exists that is both abundant and unutilized: traditional pulpwood.While establishment costs of bioenergy and pellet facilities are high, pulpwood is locally available in large quantities.Given the right incentives, bioenergy and pelletization could provide alternative energy sources and support the forestindustry and rural economy. Key words: sawmill residue, wood biomass, bioenergy, pellets, eastern Ontario

scholarly journals A short look at microbial producers of biobutanol: New trends, potentialities and limitations

2020 ◽  
Vol 24 (3-4) ◽  
pp. 100-104
Author(s):  
Dorota Kregiel
Keyword(s):  
Alternative Energy ◽  
Fermentation Process ◽  
Recent Progress ◽  
New Technologies ◽  
Waste Materials ◽  
Microbial Populations ◽  
Energy Sources ◽  
Butanol Production ◽  
Alternative Energy Sources ◽  
Microbial Strains

Nowadays, the energy crisis, climate change and greenhouse effect have created a strong demand for the development of alternative energy sources. Researchers have made an attempt to produce biobutanol from various second-generation feedstocks with new microbial strains and new technologies. This paper presents the recent progress on efficient butanol production using various biomass sources and "designed" microorganisms. The advances in the butanol fermentation process, such as the use of numerous waste materials, improved strains and co-cultivation of mixed microbial populations are of particular interest in this review.

scholarly journals Opinions on Sustainability of Smart Cities in the Context of Energy Challenges Posed by Cryptocurrency Mining

2019 ◽  
Vol 12 (1) ◽  
pp. 169 ◽  
Author(s):  
Oluwaseun Fadeyi ◽  
Ondrej Krejcar ◽  
Petra Maresova ◽  
Kamil Kuca ◽  
Peter Brida ◽  
...  
Keyword(s):  
Energy Management ◽  
Alternative Energy ◽  
Energy Use ◽  
Smart Cities ◽  
Energy Sources ◽  
Sustainable Cities ◽  
Energy Research ◽  
Alternative Energy Sources ◽  
Efficient Management ◽  
Reducing Energy

Next to climate change on the list of challenges faced by humankind in today’s technological age is energy management. While “smart” ideas continue to gather momentum as some of the ways earmarked to combat the menace of a changing climate, coupled with efficient management of energy, research and development in the blockchain is not retracting, recently giving rise to digital currencies capable of fueling massive energy consumption via mining of “crypto-coins”. Given that sustainability is a crucial goal in the design of smart cities nowadays, there are currently no assurances of sustainable cities where cryptocurrency mining is at full scale. Nevertheless, alternative energy sources may come to the rescue in no distant time. In this paper, we contextualize energy-use in smart cities through mining of virtual currencies, in order to predict whether or not smart cities can truly be sustainable if crypto-mining is sustained. An attempt is also made to emphasize the possible ways of reducing energy use and all activities involving digital currencies by seeking to replace “Proof of Work” (PoW) with improved alternatives.

An Emergent Trans-Asian Energy Nexus: Likely Costs and Possible Benefits

2012 ◽  
Vol 7 (1-2) ◽  
pp. 237-267
Author(s):  
Leanne Piggott
Keyword(s):  
Alternative Energy ◽  
Energy Use ◽  
High Energy ◽  
Global Market ◽  
Transport Sector ◽  
Energy Sources ◽  
Oil Consumption ◽  
Global Energy ◽  
Alternative Energy Sources ◽  
Major Supplier

In this article, I state that the IEA predicts that global energy usage will continue to increase over the next twenty years by as much as 45%, driven largely by the emerging economies of North and South Asia. This assessment is most pertinent in relation to oil, which currently accounts for the largest share of global energy use due to the oil dependence of the transport sector. I point out that the major supplier of oil to the global market, West Asia’s Arabian/Persian Gulf, is also experiencing relatively high energy consumption growth, and the Gulf states have thus found themselves confronted with the paradox of needing to develop alternative energy sources for their own domestic use while requiring the world’s traditional dependence on oil to continue so that they can maintain their export revenues. To the extent that alternative energy sources are developed, the commerciality of the oil reserves of supplier states is made less secure. The article explains how the growth in oil consumption has also raised questions about the medium to long-term security of supply for Asian oil-importing states which have invested substantially in supply contracts and in acquiring equity in upstream production in the Gulf. I examine both the potential threats and benefits that might arise from this emerging trans-Asian oil nexus including the increasing dependence by Asian oil importers on supplies from an inherently unstable region, and the pursuit of alternate technologies by suppliers and consumers.

scholarly journals TECHNOLOGICAL FEATURES OF THE BIONIC ARCHITECTURE

2019 ◽  
Vol 4 (3) ◽  
pp. 69-77
Author(s):  
Жанна Уморина ◽  
Zhanna Umorina
Keyword(s):  
Natural Resources ◽  
Resource Use ◽  
Technological Progress ◽  
Alternative Energy ◽  
New Technologies ◽  
Ecological Approach ◽  
Energy Sources ◽  
Ecological Balance ◽  
Alternative Energy Sources ◽  
Design Alternative

The development of scientific and technological progress in architecture gave the rise to a new phenomenon – the bionic architecture. Bionic architecture is based on already established methods of design in the framework of the "green standards"; it contributes to the improvement of the ecological balance of the environment and preservation of natural resources. The use of new technologies of construction, fabrication, design, alternative energy sources allowed to create this innovative style, which is essentially a branch of the ecological approach. The article reveals main achievements in the field of application of technical devices to increase the efficiency of resource use in architectural objects and their impact on morphogenesis.

scholarly journals Regional Disparities and Features of Solar and Wind Energy Potential of Bulgaria

2021 ◽  
Vol 1 (5) ◽  
pp. 7-11
Author(s):  
Georgi Belev
Keyword(s):  
Renewable Energy ◽  
Wind Energy ◽  
Alternative Energy ◽  
New Technologies ◽  
Global Climate ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Energy Potential ◽  
Alternative Energy Sources ◽  
Wind Energy Potential

Global climate fluctuations and projections of deteriorating sustainable human development since the beginning of the 21st century have highlighted the need to look for alternative energy sources to carbon fuels. The utilization of solar and wind energy has become a challenge for engineers and technologists to develop new technologies for more efficient development of renewable energy sources. The purpose of this paper is to present the territorial features in the utilization of renewable energy sources – solar radiation and wind in Bulgaria. The study focuses on the regional features of the solar- and wind energy potential. Based on statistical data, the utilization of the RES potential is considered through a review of the installed capacities

scholarly journals What Do The Youth Know About Alternative Energy Sources – Case Study From Hungary And Slovakia

2015 ◽  
Vol 4 (2) ◽  
pp. 36-41 ◽  
Author(s):  
Katalin Takács-György ◽  
Szilvia Domán ◽  
Antalné Tamus ◽  
Elena Horská ◽  
Zuzana Palková
Keyword(s):  
Renewable Energy ◽  
Alternative Energy ◽  
Energy Use ◽  
Renewable Energy Sources ◽  
Important Task ◽  
Green Economy ◽  
Energy Sources ◽  
Young Generation ◽  
Alternative Energy Sources ◽  
The Future

Abstract Wider use of alternative energy sources is a real requirement of sustainable economy – not only from the point of view of limited natural resources –, and there is a question what is the knowledge, the attitude of young generation. As there is a strong connection between the use of renewable energy and sustainability, the issues must be examined together. On the other hand it can be observed that there is a tendency that people are becoming more open and inquiring towards renewable energy sources, and environment protection is considered as a very important task. The main goals of the research were to examine the knowledge of the young generation taking part in higher education on sustainability and alternative energy, and to find out their attitudes to the use of different alternative energy sources. Also, our hypotheses said that the level of knowledge of sustainability and their attitudes to the environment issues are connected. We compared the results of two surveys carried out in 2014 among the students of a Hungarian and a Slovak higher educational institute. According to the primary results it can be stated that the increasing environmental awareness of young generation is visible, although as for the concepts of sustainability and their knowledge on alternative energy sources, as well as their expectations for the future, there was no significant correlation between their opinions in the Hungarian sample. It was proved that they have open minds towards environmental consciousness, and follow the renewable energy sources with attention. A bit more than a half of the sample has real knowledge on sustainability – we mean the three-pillars model here –, more the mail interview has higher knowledge and for the future they thought the question as a very important one. Considerable majority of the respondents, compared to their capabilities, try to live environmentally-sound life, will do more than one thing to save their environment, although also some negative responses slightly appeared in the received results. Primary results of the Slovak sample are similar; respondents do similar measures for environment at their households as their Hungarian colleagues, but with different priority. Concerning the knowledge of concept of “green economy”, “blue economy” and the “non-growth”, it can be summarized that the awareness is evident but in many cases, there is just few information and weak knowledge connected with the terminology and practical consequences. We think it is an important task of education to increase the awareness of young people on sustainable energy use and to let them accustomed to the thought of green economy and non-growth theories, since the expansion of knowledge may help in the development of a more positive attitude, which will then, hopefully, encourage their actions in the future.

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