scholarly journals Covid-19 and its effect on the supply and demand of fossil fuel energy: Indonesian context.

2021 ◽  
Vol 753 (1) ◽  
pp. 012023
Author(s):  
R Edi Sewandono ◽  
Adis Imam Munandar
Keyword(s):  
Fossil Fuel ◽  
Supply And Demand ◽  
Fossil Fuel Energy

scholarly journals An energy method for computing the use of fossil fuel energy

2021 ◽  
Vol 34 (02) ◽  
pp. 859-871
Author(s):  
Timur B. Temukuyev
Keyword(s):  
Power Unit ◽  
Energy Method ◽  
Energy Use ◽  
Fossil Fuel ◽  
Supply And Demand ◽  
Primary Energy ◽  
Fuel Price ◽  
Objective Criterion ◽  
Renewable Sources ◽  
Fossil Fuel Energy

An energy method for computing the use of fossil fuel energy has been considered in the article. On the world market, the fuel price depends on supply and demand and involves no energy costs for fuel production. An energy analysis of economic activity was suggested by Charles Hall, an American scientist, who introduced a notion of Energy Returned on Energy Invested, as a ratio between returned and invested energy, into scientific discourse. No account has been taken of invested energy depreciation in this method. All losses are fully incorporated, when the ratio between beneficially used energy in all process flow chains from fuel deposit exploration to energy utilisation, and the considered amount of natural fuel primary energy is taken as the coefficient of beneficial primary energy use (CBPEU). When CBPEU is determined, allowance is made for all potential energy losses; the depreciation degree of energy, contained in the fuel, from its deposit to a consumer, is defined. When energy of renewable sources is utilised, a coefficient of renewable sources energy conversion, defined as the ratio between energy delivered by a power unit throughout the entire operation period, and invested energy taking into account CBPEU over the same period, will represent an objective criterion of power unit efficiency.

Solar Thermal Energy

2018 ◽  
Author(s):  
E. L. Wolf
Keyword(s):  
Solar Cells ◽  
Thermal Energy ◽  
Fossil Fuel ◽  
Rankine Cycle ◽  
Carnot Cycle ◽  
The Sun ◽  
Solar Thermal Energy ◽  
Heat Engines ◽  
Direct Use ◽  
Fossil Fuel Energy

The Sun’s spectrum on Earth is modified by the atmosphere, and is harvested either by generating heat for direct use or for running heat engines, or by quantum absorption in solar cells, to be discussed later. Focusing of sunlight requires tracking of the Sun and is defeated on cloudy days. Heat engines have efficiency limits similar to the Carnot cycle limit. The steam turbine follows the Rankine cycle and is well developed in technology, optimally using a re-heat cycle of higher efficiency. Having learned quite a bit about how the Sun’s energy is created, and how that process might be reproduced on Earth, we turn now to methods for harvesting the energy from the Sun as a sustainable replacement for fossil fuel energy.

The Relationship between Energy Consumption and Climate Change in Shanghai

2012 ◽  
Vol 524-527 ◽  
pp. 2388-2393 ◽  
Author(s):  
Nan Wang ◽  
Mahjoub Elnimeiri
Keyword(s):  
Climate Change ◽  
Energy Consumption ◽  
Energy Use ◽  
Fossil Fuel ◽  
Average Temperature ◽  
The Past ◽  
Strong Positive Relationship ◽  
The Relationship ◽  
Annual Average Temperature ◽  
Fossil Fuel Energy

The phenomenon of climate change is becoming a global problem. One of the most important reasons of climate change is the increase in CO2 levels due to emissions from fossil fuel energy use in daily human activities. This research will use the data of the annual average temperature and energy consumption in the past 41 years of Shanghai, the largest city in China, to establish the statistical relationship between climate change and energy consumption. It is found that there is a strong positive relationship between climate change and energy consumption in Shanghai. The phenomenon of climate change could be controlled by reducing excessive energy consumption in people’s daily life. Furthermore, this paper will also discuss the reason of such relationship, and provide suggesstions of saving energy and protecting our environment.

Sustainable hydrogen energy

2007 ◽  
Author(s):  
Peter P. Edwards ◽  
Vladimir L. Kuznetsov
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Energy Supply ◽  
Fossil Fuel ◽  
Low Cost ◽  
Hydrogen Energy ◽  
The Future ◽  
Energy Economy ◽  
Fossil Fuel Energy ◽  
Carbon Based

Hydrogen is the simplest and most abundant chemical element in our universe— it is the power source that fuels the Sun and its oxide forms the oceans that cover three quarters of our planet. This ubiquitous element could be part of our urgent quest for a cleaner, greener future. Hydrogen, in association with fuel cells, is widely considered to be pivotal to our world’s energy requirements for the twenty-first century and it could potentially redefine the future global energy economy by replacing a carbon-based fossil fuel energy economy. The principal drivers behind the sustainable hydrogen energy vision are therefore: • the urgent need for a reduction in global carbon dioxide emissions; • the improvement of urban (local) air quality; • the abiding concerns about the long-term viability of fossil fuel resources and the security of our energy supply; • the creation of a new industrial and technological energy base—a base for innovation in the science and technology of a hydrogen/fuel cell energy landscape. The ultimate realization of a hydrogen-based economy could confer enormous environmental and economic benefits, together with enhanced security of energy supply. However, the transition from a carbon-based(fossil fuel) energy system to a hydrogen-based economy involves significant scientific, technological, and socio-economic barriers. These include: • low-carbon hydrogen production from clean or renewable sources; • low-cost hydrogen storage; • low-cost fuel cells; • large-scale supporting infrastructure, and • perceived safety problems. In the present chapter we outline the basis of the growing worldwide interest in hydrogen energy and examine some of the important issues relating to the future development of hydrogen as an energy vector. As a ‘snapshot’ of international activity, we note, for example, that Japan regards the development and dissemination of fuel cells and hydrogen technologies as essential: the Ministry of Economy and Industry (METI) has set numerical targets of 5 million fuel cell vehicles and10 million kW for the total power generation by stationary fuel cells by 2020. To meet these targets, METI has allocated an annual budget of some £150 million over four years.

Nurses, Healthcare, and Environmental Pollution and Solutions

2015 ◽  
pp. 174-197
Author(s):  
A. Elaine McKeown
Keyword(s):  
Climate Change ◽  
Water Pollution ◽  
Environmental Pollution ◽  
Fossil Fuel ◽  
Community Members ◽  
Forward Movement ◽  
Gas Emissions ◽  
Knowledge Resources ◽  
Change Climate ◽  
Fossil Fuel Energy

Many nurses may not be aware of the role that healthcare plays in the cycle of harm. Healthcare participates in the cycle of harm by mismanaging waste, using fossil fuel energy and offering meat-based diets. Lack of knowledge, resources and empowerment potentiate this participation. Greenhouse gas emissions from fossil fuel use and meat-based diets, with resultant water pollution, contribute to climate change. Climate change and healthcare source pollution in water from mismanaged waste, contributes to illnesses of community members. Once sickened, individuals come to the healthcare center for treatment. This illness care then contributes to more environmental pollution. Specific human health consequences of resultant water pollution and climate change will be discussed. With healthcare professionals collaborating with others concerned, the connections potentiating this cycle of harm can be broken. Recommendations will be offered for healthcare's forward movement to help create the solutions to the pollution.

scholarly journals Market situation of Bio-Briquette in Kathmandu, Nepal

2014 ◽  
Vol 5 ◽  
pp. 55-62 ◽  
Author(s):  
Krishna Bahadur Bhujel
Keyword(s):  
Fossil Fuel ◽  
Supply And Demand ◽  
Scale Up ◽  
High Potential ◽  
Biomass Energy ◽  
Economic Empowerment ◽  
Kathmandu Valley ◽  
Initial Stage ◽  
Market Situation ◽  
Demand Condition

This paper analyzes the present market scenario of the bio-briquette in the Kathmandu valley. The bio-briquette has been emerged as alternative biomass energy in the Nepal from one decade. But it does not scale up as per targets due to the lack of the awareness, technologies transfer and markets. There are opportunities to establish and replace fossil fuel through using wastage vegetations as well as economic empowerment of local people. It has found that the market situation of the bio-briquette is initial stage. Now, the supply and demand condition is increased trends and it is available in super market, department store and other outlets in the Kathmandu valley. It uses especially in the cooking, heating for children/older, house and office purposes. It is high potential to establish as alternative biomass energy in Nepal through promoting the sustainable markets. DOI: http://dx.doi.org/10.3126/init.v5i0.10254   The Initiation 2013 Vol.5; 55-62

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