CO2 reactivity with Mg2NiH4 synthesized by in situ monitoring of mechanical milling

Natural physical cavity. Quantification of annual temperature regime of natural physical cavity by in-situ experiment. Annual course of temperature of outdoor climate. Annual course of maximum temperature of natural physical cavity of optimal south-west orientation. Concept of new possibilities for energy utilization of air from natural physical cavities. Two-stage system for utilization of renewable energy sources.

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A Scientometric Approach to Analyze Scientific Development on Renewable Energy Sources

Journal of Data and Information Science ◽

10.2478/jdis-2021-0009 ◽

2020 ◽

Vol 0 (0) ◽

Author(s):

Jones Luís Schaefer ◽

Julio Cezar Mairesse Siluk ◽

Ismael Cristofer Baierle ◽

Elpidio Oscar Benitez Nara

Keyword(s):

Decision Making ◽

Renewable Energy ◽

Performance Evaluation ◽

Renewable Energy Sources ◽

Software Tool ◽

Research Field ◽

Scientific Development ◽

Energy Sources ◽

Scopus Database ◽

New Research

AbstractPurposeThis paper aims to point out the scientific development and research density of renewable energy sources such as photovoltaic, wind, and biomass, using a mix of computational tools. Based on this, it was possible to verify the existence of new research trends and opportunities in a macro view regarding management, performance evaluation, and decision-making in renewable energy generation systems and installations.Design/methodology/approachA scientometric approach was used based on a research protocol to retrieve papers from the Scopus database, and through four scientometric questions, to analyze each area. Software such as the Science Mapping Analysis Software Tool (SciMAT) and Sci2 Tool were used to map the science development and density.FindingsThe scientific development of renewable energy areas is highlighted, pointing out research opportunities regarding management, studies on costs and investments, systemic diagnosis, and performance evaluation for decision-making in businesses in these areas.Research limitationsThis paper was limited to the articles indexed in the Scopus database and by the questions used to analyze the scientific development of renewable energy areas.Practical implicationsThe results show the need for a managerial perspective in businesses related to renewable energy sources at the managerial, technical, and operational levels, including performance evaluation, assertive decision making, and adequate use of technical and financial resources.Originality/valueThis paper shows that there is a research field to be explored, with gaps to fill and further research to be carried out in this area. Besides, this paper can serve as a basis for other studies and research in other areas and domains.

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Syngas Underground Coal Gasification (UCG) Testing of In-Situ Type Lignite Coal and Fracture Type Coal

International Journal of Research in Vocational Studies (IJRVOCAS) ◽

10.53893/ijrvocas.v1i2.42 ◽

2021 ◽

Vol 1 (2) ◽

pp. 67-78

Author(s):

Julismi ◽

Rusdianasari ◽

Abu Hasan

Keyword(s):

Renewable Energy ◽

Coal Gasification ◽

Renewable Energy Sources ◽

Energy Sources ◽

Fracture Type ◽

Underground Coal Gasification ◽

Gas Concentration ◽

Lignite Coal ◽

Type Sample

The advancement and utilization of technology require energy, namely electricity and fuel energy. The increasing cost of fossil energy, the scarcity of non-renewable energy sources and the increasing energy demand requires diversification of energy resources. One of the new renewable energy sources currently being developed in Indonesia is Underground Coal Gasification (UCG). UCG is a new technology that utilizes unmined coal. In the UCG process, coal is burned underground and the syngas produced is collected through bore wells for processing or direct use. The resulting syngas is analyzed to see the effect of in-situ type of lignite coal and fractured type of coal on syngas production using the UCG method. Tests carried out on fracture-type lignite coal for 120 minutes with a sample weight of 1.3 kg obtained a CH4 gas concentration of 0.24%, which is relatively low compared to the in-situ type lignite coal sample CH4 gas concentration of 1.13%. The CO2 concentration was 54.46% in the fracture sample, and the In-Situ type sample was 52.19%. The O2 content with a value of 19.43% for the Fracture Type sample and 4.94% for the In-Situ type sample. Fracture Type and In-situ Lignite Coal produced fewer syngas products due to UCG testing than high-rank coals such as sub-bituminous and bituminous coal.

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Renewable Energy Sources

IEE Review ◽

10.1049/ir:19910071 ◽

1991 ◽

Vol 37 (4) ◽

pp. 152

Author(s):

Kenneth Spring

Keyword(s):

Renewable Energy ◽

Renewable Energy Sources ◽

Energy Sources

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Large Scale Grid Integration of Renewable Energy Sources

10.1049/pbpo098e ◽

2017 ◽

Cited By ~ 2

Keyword(s):

Renewable Energy ◽

Large Scale ◽

Renewable Energy Sources ◽

Energy Sources ◽

Grid Integration ◽

Large Scale Grid ◽

Scale Grid

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Ecological-economic preconditions for organization of energy supply when pumping oil and oil products using renewable energy sources

Automation Telemechanization and Communication in Oil Industry ◽

10.33285/0132-2222-2019-5(550)-44-52 ◽

2019 ◽

pp. 44-52

Author(s):

B.V. Ermolenko ◽

◽

N.D. Filimonova ◽

Keyword(s):

Renewable Energy ◽

Energy Supply ◽

Renewable Energy Sources ◽

Oil Products ◽

Energy Sources ◽

Ecological Economic ◽

Oil And Oil Products

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Power Projects and Covid-19: A Practical Analysis of the Relevance of Force Majeure Clauses under the Standardised Power Purchase and Implementation Agreements of Uganda

Global Energy Law and Sustainability ◽

10.3366/gels.2020.0026 ◽

2020 ◽

Vol 1 (2) ◽

pp. 189-193

Author(s):

Aisha Naiga ◽

Loyola Rwabose Karobwa

Keyword(s):

Renewable Energy ◽

Renewable Energy Sources ◽

Clean Energy ◽

The State ◽

Energy Sources ◽

Policy Goals ◽

Force Majeure ◽

Practical Analysis ◽

Energy Justice

Over 90% of Uganda's power is generated from renewable sources. Standardised Implementation Agreements and Power Purchase Agreements create a long-term relationship between Generating Companies and the state-owned off-taker guaranteed by Government. The COVID-19 pandemic and measures to curb the spread of the virus have triggered the scrutiny and application of force majeure (FM) clauses in these agreements. This article reviews the FM clauses and considers their relevance. The authors submit that FM clauses are a useful commercial tool for achieving energy justice by ensuring the continuity of the project, despite the dire effects of the pandemic. Proposals are made for practical considerations for a post-COVID-19 future which provides the continued pursuit of policy goals of promoting renewable energy sources and increasing access to clean energy, thus accelerating just energy transitions.

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