Alberta's Sub-Bituminous Coal – Building on its Strengths

1993 ◽  
Vol 11 (6) ◽  
pp. 528-539
Author(s):  
Jim Popowich

The 1973 decision to base Alberta's electrical generation on sub-bituminous coal has provided a balance between economic, environmental and social goals in the province. Presently six strip mines produce more than 22 million tonnes of low-sulphur coal for 6 thermal stations that generate 90% of the province's electricity needs. Alberta has relatively low-cost power, high coal-related job creation and an industry meeting the goals of sustainable development.

2020 ◽  
Vol 154 ◽  
pp. 05007
Author(s):  
Grzegorz Pełka ◽  
Wojciech Luboń ◽  
Tomasz Pudlik ◽  
Daniel Malik

The Centre of Sustainable Development and Energy Saving in Miękinia conducts broad didactic activities for various groups of students. For its own purposes, and also as a concept to use for other didactic centers, a low-cost didactic stand in the scope of heat pumps was designed and implemented. The constructed device presents the operating principles and schematically describes the basic elements of the ground source heat pump system. The device was constructed using a used piston and hermetic compressor from an old fridge. As an evaporator and condenser, a heat exchanger made from copper pipe curved meandering was used. A carefully selected capillary tube was used as an expansion element. The distribution of the components and the visualization of the didactic rig were devised. The whole concept assumed the usage of propane (R290) as an ecological refrigerant. The project also includes cost statements for creating an alternative to a commercial, low-cost stand for teaching purposes at various levels of education and suggests ways of using the set.


2021 ◽  
Vol MA2021-01 (2) ◽  
pp. 111-111
Author(s):  
Zahra Karimi ◽  
Jaron Moon ◽  
Chanel Van Ginkel ◽  
Douglas U1302137 ◽  
Joshua Malzahn ◽  
...  

2020 ◽  
Vol 7 (7) ◽  
pp. 192057
Author(s):  
Balkrishna C. Rao

Frugal products possess a proper mix of features including minimal consumption of resources, good functionality under nominal conditions and low cost. Therefore, increasing use of frugal products, that are designed and also fabricated systematically, is crucial to all-round sustainable development . However, their low factor-of-safety rigorous-design makes them inherently prone to failure under conditions of overloading. And multitudes of such coupled-products would create topologies of interconnected complex systems in the foreseeable future whose individual products should be made to adapt against any events of failure to enhance functionality while maintaining low cost. Accordingly, this paper proposes a two-pronged methodology for adaptation of frugal products along with ramifications of complex systems of frugal products. The adaptation methodology is crucial to the functioning of individual and also networks of frugal products and this work accordingly explicates scenarios of ensuing networks. Other than application to various sectors including electric vehicles , a basic example of which is covered in this paper, the proposed adaptation-and-networking framework can also be applied to a growing numbers of sustainable products, which are frugal according to the terminology of this effort and hence prone to premature failure.


Author(s):  
Richard Horan

The AGT1500 engine was specifically designed as a propulsion unit for U.S. Army main battle tanks. This application required a gas turbine unique in configuration with features, capabilities and attributes different from conventional aircraft gas turbine engines. The engine is a very compact, rugged, modular design with overhead access for maintenance and good part power fuel consumption achieved through a unique compact recuperator. These features, along with a cycle and control system optimized for sea level operation, low smoke and low thermal and noise signature, also provide a low cost gas turbine engine which readily meets requirements for other ground based commercial and military applications. The commercial marine industrial derivative of the AGT1500 is designated the TF15. TF15 applications currently under active consideration and development by Textron Lycoming and potential users include (1) railroad locomotives, (2) stationary continuous duty cogenerative power units, (3) standby emergency and peaking power generators, and (4) natural gas and liquid pumping and (5) marine propulsion and shipboard electrical generation systems. This paper considers the operational and design characteristics for these applications and shows how the AGT1500/TF15 engine will accommodate these requirements with little or no modifications to the basic automotive engine.


2011 ◽  
Vol 383-390 ◽  
pp. 3011-3016 ◽  
Author(s):  
Jian Zhong Liu ◽  
Yu Jie Yu ◽  
Jun Hu Zhou ◽  
Chong Du ◽  
Lin Ye ◽  
...  

Shenmu coals as low rank coal are difficult to prepare for Coal Water Slurry (CWS). The maximum slurry concentration of Shenmu CWS is lower than 60%, which is not available for practical application. Coal blending is a simple operation and low cost method to improve the slurry ability of low rank coal. Two different kinds of anthracite and bituminous coal samples were blended in Shenmu coal to study the effect on the preparation of CWS, respectively. The results showed that the maximum solid concentration of CWS increased as the proportion of high rank coal rise. And the viscosity of CWS is dropped at the same concentration. Different coals blending have different effects on the elevation of slurry ability for Shenmu coal. The raw coal with best slurry ability is not always the most suitable for blending in low rank coal. HuanNan bituminous coal is the best choice for blending in Shenmu coal. The maximum solid concentration of CWS can be increased by 6% when the proportion of HuanNan coal reached to 70%.


2014 ◽  
Vol 44 (1) ◽  
pp. 83-104 ◽  
Author(s):  
PETER TAYLOR-GOOBY ◽  
JULIA M. GUMY ◽  
ADELINE OTTO

AbstractNew welfare has been prominent in recent European social policy debates. It involves mobilising more people into paid work, improving human capital and ensuring fairer access to opportunities. This programme is attractive to business (more workers, better human capital and reduced social conflict to enhance productivity and profitability) and to citizens (more widely accessible job-opportunities with better rewards): a relatively low-cost approach to the difficulties governments face in maintaining support and meeting social goals as inequalities widen.The general move towards ‘new welfare’ gathered momentum during the past two decades, given extra impetus by the 2007–09 recession and subsequent stagnation. While employment rates rose during the prosperous years before the crisis, there was no commensurate reduction in poverty. Over the same period the share of economic growth returned to labour fell, labour markets were increasingly de-regulated and inequality increased. This raises the question of whether new welfare's economic goals (higher employment, improved human capital) and social goals (better job quality and incomes) may come into conflict.This paper examines data for seventeen European countries over the period 2001 to 2007. It shows that new welfare is much more successful at achieving higher employment than at reducing poverty, even during prosperity, and that the approach pays insufficient attention to structural factors, such as the falling wage share, and to institutional issues, such as labour market deregulation.


2020 ◽  
Author(s):  
Giulia Realdon ◽  
Gina P. Correia ◽  
Xavier Juan ◽  
Ramanathan Baskar ◽  
Guillaume Coupechoux ◽  
...  

<p>Responding to a widely perceived need for enhancing geoscience education (King, 2013), in 2018 the EGU Committee on Education launched the EGU and IUGS-IGEO Geoscience Field Officer (FO), project. FO Educators are specifically trained and appointed to run professional development activities: teacher workshops based the hands-on activities developed by ESEU Earth Science Education Unit (originally at Keele University) and published in the Earthlearningidea on-line repository. These activities, based on the CASE (Cognitive Acceleration through Science Education) methodology and successfully tested on nearly 40,000 teachers in the UK (King & Thomas, 2012), are aimed at geoscience teachers without an academic background in this field, or needing training courses in practical geology. The objective is to improve teachers’ knowledge and skills by means of a friendly approach and to raise their self-confidence in addressing geoscience topics in their classes. Six EGU and IUGS-IGEO FOs (the first six authors of this article) translated the activities into their respective national languages, prepared the workshops using commonly available equipment and low-cost materials and begun running workshops in May 2019. Meanwhile, the FOs coordinated their work and exchanged information through e-mail and Skype meetings. By January 2020, the FOs’ activity has included: 16 workshops given in Spain, Portugal, Italy, France, Morocco, and India for 286 attending teachers from primary and secondary schools. The workshops were evaluated through a questionnaire shared by all the FOs. The feedback showed that all the participants found the approaches very interesting and expressed interest in updating themselves and attending future workshops. The full evaluation data will be presented at a later date. Information about the FO workshops was disseminated through 4 teachers’ conferences, aimed at informing potential participants of the opportunity offered by EGU in the first pilot countries. Following the pleasing results of the first months of the FO project, EGU made a second call for more FOs in EU and non-EU countries. The new FOs will be trained during the EGU General Assembly 2020 in Vienna with the assistance of the existing FOs. Geoscience plays an important role in the operation of society and in protecting the future for all humans. Geoscience underpins key areas of the Sustainable Development Goals (SDGs) adopted by all United Nations Member States in the 2030 Agenda (United Nations 2015). The FOs’ dissemination activities will help the geoscience community to include students and teachers from the school level upwards and will result in the forging of interdisciplinary links with other disciplines and in promoting the adoption of sustainable development models in a growing number of countries.</p><p> </p><p>References</p><p>Earthlearningidea website: http//:www.earthlearningidea.com</p><p>King C. (2013). Geoscience education across the globe - results of the IUGS-COGE/IGEO survey. Episodes, 36.1, 19-30.</p><p>King. C. and Thomas, A. (2012). Earth Science Education Unit workshops – an evaluation of their impact. School Science Review. 94(347) 25-35. ISSN 0036-6811.</p><p>United Nations (2015) Transforming our World: The 2030 Agenda for Sustainable Development. Retrieved from https://sustainabledevelopment.un.org/content/ documents/21252030%20Agenda%20for%20Sustainable%20 Development%20web.pdf</p>


2014 ◽  
Vol 926-930 ◽  
pp. 36-39
Author(s):  
Min Xian Du ◽  
Ke Liang Chen ◽  
Yong Gang Xiong

High-purity alumina has excellent performance and wide application in high-tech industries and areas of modern materials, so industrialized, low-cost, non-polluting and sustainable development preparation process has become one of the priorities of present high-purity alumina powder research. The use of high purity alumina and its major domestic craft preparation methods are described in the paper.


2021 ◽  
Vol 92 ◽  
pp. 06030
Author(s):  
Tomáš Ric ◽  
Daniela Šálková

Research background: The paper deals with the connections between international tourism and shopping, and therefore the purchase of clothing in relation to consumers. In the last few years, shopping has become one of the factors determining tourist’s decisions about choosing a travel destination. One-third of tourists have ever travelled just to buy clothes abroad. Such behaviour offers enormous economic potential for companies and the state economy. Shopping tourism is an integral part of globalization. Purpose of the article: The article’s aim is to characterize the elements of consumer behaviour in the framework of shopping tourism when buying clothing products. In addition to consumer preferences, the aim is to characterize the main types of clothing products that travellers are interested in and the impact of this consumer behaviour on the globalization. Methods: A questionnaire is compiled on the basis of stated hypotheses. The results will be evaluated using appropriate statistical methods such as the Kruskal-Wallis test, Spearman’s correlation coefficient and categorical principal components analysis. Findings & Value added: Research has shown that the first group of preferred garments consists of local products at a higher price level produced in low quantity. The second type of product is low-cost garments produced at a high cost under conditions that do not correspond to the principles of sustainable development. The clothing industry impact on global sustainable development is largely negative. In this regard, we can talk about the negative impact of globalization. This is no different from tourism.


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