scholarly journals Artikel Review: Produksi Gas Hidrogen dari Reaksi Elektrolisis Sebagai Bahan Bakar Non-Fosil

UNISTEK ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 30-35
Author(s):  
Ismi Nurlatifah ◽  
Lily Arlianti

In carrying out various activities today, it cannot be separated from the fuel. As we all know, fuels that are still commonly used today are fossil fuels whose energy resources are running low. Not only that, fossil fuels have also been shown to produce air pollution. Unhealthy air conditions can certainly reduce human life expectancy. In order to make the clean environment and not polluted by the air pollution, there must be environmentally friendly fuels. The answer for this kind of fuels is hydrogen which comes from nonfossil. One way to obtain hydrogen is an electrolysis reaction. Water can produce hydrogen through electrolysis. Just a few liters of water, it can produce ten to twenty thousand liters of hydrogen gas per hour. The use of Hydrogen as a non-fossil fuel has been proven to be environmentally friendly and free of carbon monoxide. Healthy air and a clean environment are certainly our responsibility. It's time to switch by using hydrogen fuel.

2019 ◽  
Vol 2 ◽  
pp. 1-7
Author(s):  
Shokouh Dareshiri ◽  
Mohammadreza Sahelgozin ◽  
Maryam Lotfian ◽  
Jens Ingensand

<p><strong>Abstract.</strong> Precipitation is one of the main stages of the water cycle, and it is required for the organisms to survive on the planet. In contrast, air pollution is a phenomenon that has greatly affected the human life nowadays. Population growth, development of factories and increasing number of fossil fuel vehicles are the most influencing factors on air pollution. In addition to understand nature of precipitation and air pollution, finding relationship between these two phenomena is necessary to make appropriate policies for reducing air pollution. Furthermore, studying trends of precipitation and air pollution in the past, is helpful to forecast the times and places with less precipitation and more air pollution for a better urban management. In this study, we tried to extract any probable relationship between these two parameters by investigating their monthly measured amounts in 22 municipal districts of Tehran in three epochs of time (2009, 2013 and 2017). Carbon Monoxide (CO) was considered as the indicator of air pollution. Results of the study show that the parameters have a significant relationship with each other. By using Pearson Correlation Coefficient and One-Way Variance (ANOVA) test, relationship between the data for each month and for each district of Tehran were studied separately. As the time has passed and the air pollution has increased, the correlation between the parameters in districts has decreased. In addition, during the cold months of the year, the correlations decrease since the fact that precipitation is not the only influencing factor on the air pollution due to the rise of air “Inversion”. Finally, the polynomial regression model of carbon monoxide based on precipitation was extracted for each of the three years. The model suggests a degree three polynomial equation. The obtained coefficients from the regression model show that the relationship between parameters was stronger in the years with more rainfalls. This can be due to the more significant impact of other influencing factors on air pollution, such as population density, wind direction, vehicles and factories in the areas or conditions with a less rainfall.</p>


2016 ◽  
Vol 22 (2) ◽  
pp. 173-190 ◽  
Author(s):  
Zorzeta Bakaki

AbstractExisting research suggests that both natural resource abundance and scarcity are likely to increase the risk of interstate and domestic conflict. Two crucial aspects, however, have largely been neglected in the existing literature: (1) the analysis of international crises (i.e. non-violent conflicts) and (2) the effects of different market conditions of energy resources. Especially a growing number of market participants can affect the strategic value of natural resources and, thus, the incentives for international crisis initiation. It is argued that different market structures make countries to adopt either aggressive or more peaceful behavior towards other states, and this is why I empirically then disaggregate fossil fuels along with the market that they belong to. This study examines 179 countries at the monadic level since 1980. The results suggest variation on the incentives of crisis initiation along the different fossil fuels, while I also correct for potential endogeneity issues.


Author(s):  
David Arruda ◽  
David Browne ◽  
Chris Thongkham ◽  
Mansour Zenouzi

One of the major road blocks in the transition from the current oil economy to the future hydrogen fuel economy is the availability of low cost hydrogen fuel for the average consumer. Currently, the price per kilogram of hydrogen fuel is higher than the cost of an equivalent measure of gasoline and its availability is limited to large metropolitan areas. Both of these factors prevent hydrogen from being an attractive alternative to gasoline for most consumers. The goal of this project, in a senior thermal design course, is to design and construct a low-cost hydrogen generation system for residential hydrogen fuel production and storage. The system will be powered by renewable sources of energy; namely a micro-scale wind turbine and a solar panel. The power generated will be used to power a small-scale PEM electrolyzer to produce hydrogen gas that will then be stored at low pressure in a safe, metal hydride storage tank. This relatively low cost system will provide the average consumer with the ability to safely produce hydrogen fuel for use in residential fuel cells or fuel cell-powered vehicles, making hydrogen fuel an attractive alternative to fossil fuels.


Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 964 ◽  
Author(s):  
Florinda Martins ◽  
Carlos Felgueiras ◽  
Miroslava Smitkova ◽  
Nídia Caetano

The use of fossil fuels as the main source of energy for most countries has caused several negative environmental impacts, such as global warming and air pollution. Air pollution causes many health problems, causing social and economic negative effects. Worldwide efforts are being made to avoid global warming consequences through the establishment of international agreements that then lead to local policies adapted to the development of each signing nation. In addition, there is a depletion of nonrenewable resources which may be scarce or nonexistent in future generations. The preservation of resources, which is a common goal of the Circular Economy strategy and of sustainable development, is not being accomplished nowadays. In this work, the calculation of indicators and mathematical and statistical analysis were applied to clarify and evidence the trends, provide information for the decision-making process, and increase public awareness. The fact that European countries do not possess abundant reserves of fossil fuels will not change, but the results of this analysis can evolve in the future. In this work, fossil fuel energy consumption, fossil fuel depletion, and their relationship with other variables, such as energy dependence and share of renewable energy in gross final energy consumption, were analyzed for 29 European countries. Furthermore, it was possible to conclude that many European countries still depend heavily on fossil fuels. Significant differences were not found in what concerns gross inland consumption per capita when the Kruskal–Wallis test was applied. It was possible to estimate that by 2050 (considering Jazz scenario) it will only remain approximately 14% of oil proven reserves, 72% of coal proven reserves and 18% of gas proven reserves. Given the small reserves of European countries on fossil fuels, if they need to use them, they will fast disappear.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Roma Madan-Soni

Purpose The purpose of this study/paper Manipulating Golden Wombs’ (2017) is to show the author’s non-site intervention of authoritarian – undemocratic maneuvering of both women’s and earth’s “golden” wombs. The burning fossil fuels in myriads of flame colors, signal the power and distress of Earth’s wounded womb, memories of war, environmental destruction and human fatality, and descend to decline as extinguished Oil Drops (2017), creating a void. Global warming poses a problem for fossil fuel systems and those who profit from them. Design/methodology/approach The title of this paper has been inspired by Cara New Dagget’s book, The Birth of Energy (2019), posited in the nascent realm of energy “mortalities.” Now, confronting a world warmed by sweltering fossil fuels, the book provides us with a direction to thinking energy beyond the “Calvinist view” of everlasting work. Spellbound by Manipulating Golden Wombs’ (2017), the audience canter around the outer surface of the centrally positioned, circulating luminous “acrylic” oil drops highlighted by hundreds of mono-frequency lamps impregnated with desert biodiversity. A closer look takes spectators through a fiery desert, across the fossil fuel fields into the depths of its scorching oil wells, its womb, as they sense the “real-time” catastrophe that had occurred beyond the gallery wall. Findings These artists’ objective with their interventions is to “root it to the contour of the […] land, so that it’s permanently there and subject to the weathering,” so the audience is “sort of curious to see what will happen to this” (Schmidt, 1996, 225) through the course of time. The works resists the resistance of nature and social culture, as well as of body and intellect by emphasizing the intransience, however complex, of human beings with the ecosphere in which they survive (Novak 2002, 23). The surfacing of the under-surface of the land and ocean life triggers the idea of the private space, which involves role-play, gender norms and the control over women's lives in the capitalist and Gulf societies. Authoritarianism, fossil fuel capital, high-energy use and militarism make the climate politics critical to planetary security. This combustible convergence gave birth to Manipulating Golden Wombs’ (2017). Research limitations/implications Ganz reminds us that devouring less energy appears to be almost unharmonious with the current politics of being “Modern.” Sacrificing energy resonances with abstinence at best, and widespread death and injustice at worst. But, consuming an overload of energy is incompatible with a multispecies existence on Earth. Scientists caution “a cascade of feedbacks could push the Earth System irreversibly onto a ‘Hothouse Earth’ pathway,” the consequence of which could be an uninhabitable, unsafe globe for beings (Steffen et al., 2018). Even though it sounds vivid, it is hard to overstate the crisis in the midst of what environmentalists and biologists term as a sixth extinction event (Kolbert, 2014), in line with a “biological annihilation” that paints “a dismal picture of the future of life, including human life” (Ceballos et al., 2017). Practical implications It is not only the land’s womb that we have hurt; we have miffed the hearts of the water network, and “Othered” and the wombs of many women and most surfaces of the Earth have been penetrated, unconsented! To sustain a biodiverse sphere, to pause the deaths of the planet’s flora and fauna and to thrive on Earth, we need to work on renewable sources of energy based on “new collectively shared values, principles, and frameworks” (Steffen et al., 2018). We need to stop Manipulating Golden Wombs’ (2017). Are we ready to accept the challenge? (Lau and Traulsen, 2016) Social implications Petro-masculinity has multiple global dimensions and manifests in multiple and locally specific ways (Dagget, 2018). This encourages the geographically diverse artists discussed in this paper to embrace alternative visions, to make bold and explicit statements on gender and global diversity, equity and rights. Through history, women, in specific, embodied the entirety of the Ecocene and its life cycle and explored it in the context of their own relationships, health, sexuality, fertility, reproduction, childbirth, illness and inescapably death. The artists’ interventions’ visual physiognomies and intentions point toward a comprehensive agenda of action that leads to remedial courses toward reinstating the biome to a healthy condition. Originality/value Manipulating Golden Wombs’ (2017) enacts the historic all-consuming fires, penetrating the “shared environment,” burning the fossilized fuels exuding from Earth’s penetrated womb. The higher cone-shaped oil drops irradiate the intense dazzling images of oil wells in flames and the desert flora and fauna nestled within the scorching inner arena. This aligns with the private space provided to women. The wombs are smothered in the fuming fires of the Gulf war. The darker, narrower lower oil drops, iconic of the remnants of fossil fuel, are the residual sludge within which the land and water species are enmeshed and ensnared to death. The potency of the enactment of the drops “enables the viewer to see [him/]herself seeing, to become aware of how she perceives the world around [him/]her and in doing so participates in shaping it” (Eliasson, 2009, p. 25) as a form of engagement, which involves an “attention to time, movement and changeability” (pp. 18–21).


2020 ◽  
Vol 8 (1) ◽  
pp. 8-17
Author(s):  
Md. Zahidul Islam ◽  
Nusrat Jahan Onny ◽  
Suman Chowdhury

The energy resources from the fossil fuels are decreasing day by day. Rather fossil fuel is costly, it creates environmental problems by producing and NOx in the environment. Now it is argent to find a solution. The solution can be renewable energy. In this paper the effort was to find the utility of biodiesels in the conventional diesel engine. This biofuel or biodiesel is extracted from Soybean methyl ester (SME). We compared the basic performance characteristics diesel, SME 20 and SME 100 in unmodified diesel engine. This experiment will be helpful to find out the utility of SME type biodiesel in conventional diesel engine so that the uses of fossil fuels can be reduced in quick rental power plants and other uses. We can use biodiesel as substitute in an economic tariff and efficient way.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Hoang Mai Luong ◽  
Minh Thien Pham ◽  
Tyler Guin ◽  
Richa Pokharel Madhogaria ◽  
Manh-Huong Phan ◽  
...  

AbstractThe use of hydrogen as a clean and renewable alternative to fossil fuels requires a suite of flammability mitigating technologies, particularly robust sensors for hydrogen leak detection and concentration monitoring. To this end, we have developed a class of lightweight optical hydrogen sensors based on a metasurface of Pd nano-patchy particle arrays, which fulfills the increasing requirements of a safe hydrogen fuel sensing system with no risk of sparking. The structure of the optical sensor is readily nano-engineered to yield extraordinarily rapid response to hydrogen gas (<3 s at 1 mbar H2) with a high degree of accuracy (<5%). By incorporating 20% Ag, Au or Co, the sensing performances of the Pd-alloy sensor are significantly enhanced, especially for the Pd80Co20 sensor whose optical response time at 1 mbar of H2 is just ~0.85 s, while preserving the excellent accuracy (<2.5%), limit of detection (2.5 ppm), and robustness against aging, temperature, and interfering gases. The superior performance of our sensor places it among the fastest and most sensitive optical hydrogen sensors.


2010 ◽  
Vol 1 (2) ◽  
pp. 68
Author(s):  
Edgars Čubars

Increasing demand for energy, limited resources of fossil fuel, as well as pollution of the environment and changes of the global climate, have raised more interest in renewable resources. Support to the use of renewable resources has become a very important part of the European Union’s policy. The use of reeds like renewable energy resources allows saving fossil fuels. This paper presents the findings on the reed resources in lakes of Latgale (region in Latvia). The investigation of reed resources shows that the resources in the region are situated in a very uneven way. The greatest amount of reed resources is concentrated in the biggest lake in Latvia - Lubana Lake as well as near it. Using direct measurement methods and metering in the distance, it was stated that the total reed resources of Lubana Lake are 8,203? 2,999 tons, occupy 882 hectares and are situated in 429 reed blocks. Summary resources of Latgale region are 19,862? 7,409 tons. The amount of heat that can be obtained using reed resources of Latgale region is equivalent to 10,543 tons of natural gas or 8,802 tons of petroleum, or 13,092- 21,348 tons of coal (it depends on the heating of coal), or 7,675 tons of fuel, or 8,712 – 12,199 tons of oil (depends on the heating of oil).


2012 ◽  
Vol 11 (2) ◽  
pp. 124
Author(s):  
Edy Saputra ◽  
Syaiful Bahri

Bio oil is most important alternative energy resources for human life due to the production of fossil fuel tend todecline. Numbers of researches have been developed on alternative energy resources, such as the conversion ofbiomass. The palm solid waste which is consisted of wood, stem and empty bunch having size of diameter in rangeof 2 to 10 mesh were used in this work. The pyrolysis method is selected in this research. This process was donein stainless steel reactor having length and length of 60.0 and 3.81 cm respectively at temperature of 450 to 600oCunder nitrogen flow. Gas chromatography HP 5890 is utilized to analyze of the bio oil result. The result achieved thehighest yield at 500oC and particle diameter of 2-6 mesh.


Dams a facility that stores water in the and uses water in a sustainable way. The high use of imported energy resources, which is composed entirely of fossil fuels and which has negative impacts in terms of economic and political aspects, clearly shows that the use and potential of domestic and renewable energy resources is inevitable. Increasing the domestic and renewable primary energy source of hydroelectric energy production to the highest values is only possible with the development of the right tank management policies. Dams also had been built to produce motive power and electricity since the industrial revolution. Development priorities changed, experience accumulated with the construction and operation of dams. Although the importance of water is well known in the human life and civilization around the world, still various groups argue that expected economic benefits are not being produced and that major environmental, economic and social costs are not being taken into account


Sign in / Sign up

Export Citation Format

Share Document