scholarly journals INVESTIGATION OF PLASMA-OHMIC ELECTRIC FURNACES FOR GASIFYING CARBONACEOUSE WASTES

Author(s):  
A. S. Anshakov ◽  
P. V. Domarov ◽  
A. I. Aliferov ◽  
V. A. Faleev

For the first time, the processes of reducing energy consumption of a plasma-ohmic electric furnace for the gasification of various carbon-containing wastes (municipal, biological, agricultural, and other organic wastes) were investigated. The effect of reducing the humidity, morphological composition of waste on energy consumption during plasma gasification of carbon-containing materials is shown. The possibility to exclude the process of preliminary drying from the production cycle of waste gasification has been revealed. In the modern world, one of the global trends in technology development is the continuous increase in the efficiency and environmental friendliness of carbon-containing waste management methods. The carbon-containing industrial waste includes: municipal (municipal solid waste (MSW)), agricultural (rice husk, etc.), industrial (wood waste, coal slimes, etc.) and biological (medical, biological sludge deposits (BIO) and etc.) Despite the different nature of this waste, they all consist of the same chemical elements: carbon, hydrogen, oxygen, nitrogen, chlorine, sulfur, ash (a complex of inorganic elements and compounds), water (moisture), but contain elements and compounds dangerous for the environment (pathogens, heavy metals, etc.). Gasification of carbon-containing wastes is a complex physico-chemical process with a large number of effects, a complete scientific explanation of which is far from completion.

2021 ◽  
Author(s):  
Fei Cao ◽  
Anruo Mao ◽  
Bobin Yang ◽  
Chenyang Ge ◽  
Dawei Wang

The unsymmetrical diphenylphosphino-pyridinyl-triazole ligand was synthesized and characterized through IR, NMR and MS and the corresponding earth-abundant metal complex (cobalt) was prepared. Considering energy consumption and environmental friendliness, it is...


2016 ◽  
Vol 5 (1) ◽  
pp. 60-69 ◽  
Author(s):  
Pablo R. Velasco González

Tiziana Terranova draws attention to the necessity of questioning how algorithmically enabled automation works “in terms of control and monetization” and “what kind of time and energy” is being subsumed by it (Terranova 387). Cryptocurrencies are payment technologies that automate the production of money-like tokens (Bergstra and Weijland) following algorithmic rules to maintain a fixed production rate. Different kinds of energy and residues, which are not always acknowledged, are involved in this process. Here I distinguish between two closely linked layers in the Bitcoin token production: first, an algorithmic layer, which contains the instructions and rules for the creation of bitcoins; second, a hardware layer, which performs and embodies the former. While these layers work together, I will argue that they enact their own kind of logics of energy and waste. I will begin at the more visible end of the production cycle, the hardware layer, where the definition of waste and energy consumption is shared with many electronic devices; then I will trace back its algorithmic layer, which as I argue, follows a different logic.


2020 ◽  
Vol 10 (513) ◽  
pp. 478-484
Author(s):  
O. V. Ptashchenko ◽  
◽  
D. Y. Arkhypova ◽  

The article examines the main global problems of the modern world space, defining the main tendencies of overcoming the crisis and the further path of human development. Globalization indicates the general nature of most processes meaningful to mankind. Modern humanity represents an indivisible system of economic, political, social and cultural ties and interactions, which is significative for the unity of its future destiny. Informatization became the basis of globalization, reflecting the current level of technology development. Global problems are problems affecting all mankind, influencing the course of economic development and social sphere, also ecology and political stability. These problems require international cooperation, since none, even a highly developed State, is able solve them on its own. The number of hungry people in the world has increased over the past few years. Now every ninth person in the world is starving every day, suffering from a lack of nutrition. Both the food scarcity and hunger are among the greatest threats to the overall health of the human population exceeding malaria, tuberculosis or HIV. Responsibility for the planet should begin with responsibility for the country, because the crisis of a separate country complicates the world situation in the political aspect; ecological and resource crises jeopardize environmental equilibrium and complicate the problem of resources on a global scale; an economic crisis leads to social consequences in other countries.


Author(s):  
Ziqiang Wang ◽  
Wenjing Tian ◽  
Zechuan Dai ◽  
Tongqing Zhou ◽  
Qiqi Mao ◽  
...  

Electrochemical ammonia synthesis is one of sustainable technologies to artificially synthesize ammonia because of its reduced energy consumption and environmental friendliness. Nevertheless, low ammonia yield and poor selectivity of nitrogen...


2020 ◽  
Vol 12 (24) ◽  
pp. 10385
Author(s):  
Chia-Nan Wang ◽  
Thanh-Tuan Dang ◽  
Ngoc-Ai-Thy Nguyen ◽  
Thi-Thu-Hong Le

E-commerce has become an integral part of businesses for decades in the modern world, and this has been exceptionally speeded up during the coronavirus era. To help businesses understand their current and future performance, which can help them survive and thrive in the world of e-commerce, this paper proposes a hybrid approach that conducts performance prediction and evaluation of the e-commerce industry by combining the Grey model, i.e., GM (1, 1) and data envelopment analysis, i.e., the Malmquist-I-C model. For each e-commerce company, GM (1, 1) is applied to predict future values for the period 2020–2022 and Malmquist-I-C is applied to calculate the efficiency score based on output variables such as revenue and gross profit and input variables such as assets, liabilities, and equity. The top 10 e-commerce companies in the US market are used to demonstrate model effectiveness. For the entire research period of 2016–2022, the most productive e-commerce marketplace on average was eBay, followed by Best Buy and Lowe’s; meanwhile, Groupon was the worst-performing e-commerce business during the studied period. Moreover, as most e-commerce companies have progressed in technological development, the results show that the determinants for productivity growth are the technical efficiency change indexes. That means, although focusing on technology development is the key to e-commerce success, companies should make better efforts to maximize their resources such as labor, material and equipment supplies, and capital. This paper offers decision-makers significant material for evaluating and improving their business performance.


2018 ◽  
Vol 36 (5) ◽  
pp. 575-596
Author(s):  
Jonas Hahn ◽  
Jens Hirsch ◽  
Sven Bienert

PurposeThe purpose of this paper is to investigate the role of distinct types of heating technology and their price impact in German residential real estate markets, considering a wide range of other housing market determinants. The authors aim to test and to verify specifically, whether the obsolescence of heating technology leads to a significant price discount and whether higher technological standards (and environmental friendliness) come with a price premium on the market.Design/methodology/approachThe authors create housing market models for rental and sales segments by constructing generalized additive models with explicit multi-layered spatial components. To elaborate a profound and contemporary answer using these models, the authors perform large-sample regression analyses based on more than 400,000 observations covering German residential properties in 2015.FindingsFirst and foremost, the heating system indeed shows significant explanatory importance for measuring housing rents and purchasing price. Second, the authors find that it makes a difference whether clean “green” technologies are implemented or whether “brown” systems with obsolete technology or fossil energy sources is on hand. Ultimately, the authors conclude that while low energy consumption indeed comes with a price premium, this needs to be interpreted together with the property’s heating type, as housing markets seem to outweigh the “green premium” by “brown discounts” if low energy consumption figures are powered by a certain type of heating technology system.Research limitations/implicationsAside of a possible omitted variable bias, the main research limitation is constituted by the integration of asking prices in the analysis, as actual transaction prices are not systematically transparent on national level in Germany. Limitations are discussed at the end of the paper.Practical implicationsThis work supports investors who face the challenge of making environmental- and energy-related decisions as well as appraisers who deliver financial fundamentals for such. Third, the paper supports both asset managers as well as investment strategists in argumentation pro-environmental investments beyond all ecological necessity.Social implicationsThis paper contributes to the current discussion on climate change and the eclectic role of real estate in this context. The authors deliver evidence on pricing effects as a measure of socioeconomic acceptance of progressive heating technology and environmental friendliness as an imperative of twenty-first century societies.Originality/valueThis is the first study on “green premiums” or “brown discounts” that includes heating technology as a potential and distinct driver of value and rents. It is a contemporary contribution and delivers original information on the quantitative impact of contemporary and anachronistic technology in heating to researchers as well as investors and appraisers.


2014 ◽  
Vol 905 ◽  
pp. 199-202
Author(s):  
Yu Ri Gong ◽  
Sung Ho Tae ◽  
Su Won Song ◽  
Seung Jun Roh

The purpose of this study is to assess environmental friendliness of passive apartment house based on major building materials in Korea. To accomplish this, stage-wise quantity information of life cycle and energy consumption data were established on major materials through theoretical consideration on life cycle assessment. In addition, basic unit database from Korean LCI DB was utilized to assess and analyze characterization value of global warming assessment. As a result, the value of global warming was smaller in passive apartment house in comparison to general apartment house. As the effect of building materials in construction stage was analyzed to be greater than the effect of energy consumption in operation stage, development of diverse building materials taking environmental impact into account is deemed necessary.


2011 ◽  
Vol 148-149 ◽  
pp. 188-191
Author(s):  
Wei Min Chen ◽  
Xin Gong Li ◽  
Qi Fei Ling

With lots of maintenance equipments needed and high energy consumption, the traditional cold pressing process for cement-bonded particleboard has long production cycle. For the recent years, Scholars at home and abroad have made great progress in the research on fast curing process for cement-bonded particleboard, this paper summarizes the process and research status of fast curing technology for cement-bonded particleboard and propose research direction in order to provide reference for fast curing process of cement-bonded particleboard.


Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6364
Author(s):  
Aleksandra Matuszewska-Janica ◽  
Dorota Żebrowska-Suchodolska ◽  
Agnieszka Mazur-Dudzińska

Energy plays a crucial role in the modern world. The acquisition and consumption of energy is unfortunately associated not only with economic development or the facilitation of everyday life, but also with a negative impact on the environment. To prevent these, measures are being taken which are part of a broad programme referred to as sustainable energy development (SED). A special place among energy consumers is occupied by households, as access to energy is a fundamental factor affecting the quality of life. The aim of this paper is to look at and assess the current situation of the household sector in the EU energy market in the context of SED and to point out similarities and differences between EU countries. The analysis considers factors based on SED indicators: final energy consumption per capita, energy prices offered to households, and the share of renewable energy in household energy consumption. The k-means method was used as a research tool. The results obtained indicate first of all that the EU countries are highly differentiated in terms of the analysed factors. It can be said that these differences result not only from the wealth of a given country, geographical location, or natural possibilities to use renewable energy sources, but mainly from the energy policies implemented in individual countries.


2021 ◽  
Author(s):  
Lech Sitnik

One of the many important challenges of the modern world is the greenhouse effect of CO2. It is necessary to implement solutions that will eliminate it. Since the easiest way to eliminate the greenhouse effect is to reduce hydrocarbons fuel consumption, it is important to evaluate the fuel (energy) consumption in long term operation. The article presents a proposal for the use of the so-called vehicle energy footprint. The method of creating such a trace is presented and illustrated with specific results of data analyzes. The data is publicly available, which means that the presented method can be independently verified. It has also been shown that the use of the method not only organizes the analyzes, but also leads to information that cannot be obtained with other methods. It therefore seems that an attractive tool has been developed for future applications.


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