scholarly journals Recent Progress and Approaches on Carbon-Free Energy from Water Splitting

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Aslam Hossain ◽  
K. Sakthipandi ◽  
A. K. M. Atique Ullah ◽  
Sanjay Roy

AbstractSunlight is the most abundant renewable energy resource, providing the earth with enough power that is capable of taking care of all of humanity’s desires—a hundred times over. However, as it is at times diffuse and intermittent, it raises issues concerning how best to reap this energy and store it for times when the Sun is not shining. With increasing population in the world and modern economic development, there will be an additional increase in energy demand. Devices that use daylight to separate water into individual chemical elements may well be the answer to this issue, as water splitting produces an ideal fuel. If such devices that generate fuel were to become widely adopted, they must be low in cost, both for supplying and operation. Therefore, it is essential to research for cheap technologies for water ripping. This review summarizes the progress made toward such development, the open challenges existing, and the approaches undertaken to generate carbon-free energy through water splitting.

Author(s):  
Aswini Kumar Dash ◽  
Biswajit Das

With the increase in awareness about protecting our environment and the support for the cause by all major economies of the world through the Kyoto Protocol, the importance of wind power has grown in stature since it is clean and the most viable renewable energy resource. The global annual market of new wind turbine installation is more than US$ 40 billion at current prices, considering world-wide installations of about 40000 MW annually. This paper reviews the growth of the wind power industry globally as well as in India. The opportunities for investment in this industry and problems associated with it are also discussed with specific reference to India. In the second part of this paper, the business model of two of the major wind turbine manufacturers of India, Suzlon Energy Limited, and Enercon India Limited are discussed and their strategies are compared.


Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 429
Author(s):  
Sami M. Ibn Shamsah

Of all the available resources given to mankind, the sunlight is perhaps the most abundant renewable energy resource, providing more than enough energy on earth to satisfy all the needs of humanity for several hundred years. Therefore, it is transient and sporadic that poses issues with how the energy can be harvested and processed when the sun does not shine. Scientists assume that electro/photoelectrochemical devices used for water splitting into hydrogen and oxygen may have one solution to solve this hindrance. Water electrolysis-generated hydrogen is an optimal energy carrier to store these forms of energy on scalable levels because the energy density is high, and no air pollution or toxic gas is released into the environment after combustion. However, in order to adopt these devices for readily use, they have to be low-cost for manufacturing and operation. It is thus crucial to develop electrocatalysts for water splitting based on low-cost and land-rich elements. In this review, I will summarize current advances in the synthesis of low-cost earth-abundant electrocatalysts for overall water splitting, with a particular focus on how to be linked with photoelectrocatalytic water splitting devices. The major obstacles that persist in designing these devices. The potential future developments in the production of efficient electrocatalysts for water electrolysis are also described.


Nanoscale ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 4987-5034 ◽  
Author(s):  
Jasmin S. Shaikh ◽  
Navajsharif S. Shaikh ◽  
Sawanta S. Mali ◽  
Jyoti V. Patil ◽  
Krishna K. Pawar ◽  
...  

Dye-sensitized solar cells (DSSCs) have aroused great interest as a potential renewable energy resource to fulfill the 21st century global energy demand.


2021 ◽  
Vol 286 ◽  
pp. 02001
Author(s):  
Nicoleta Alexandra Vanghele ◽  
Andreea Matache ◽  
Mariana Mădălina Stanciu ◽  
Dumitru Bogdan Mihalache

Bamboo is a grassy plant that grows rapidly, is also a renewable natural resource and with a high yield. There are many applications and uses of bamboo, which led to its planting around the world. Among the industries in which bamboo has by now experienced extensive exploitation, we can remember the textile, construction, furniture ; even food, pharmaceutical or cosmetic industries. Biomass is the plant material that is used as a renewable energy resource. This is achieved others by cultivating plants specially used for energy production or by using resistors from small industrial sectors. The current paper highlights the potential for the recovery of bamboo as biomass, both in terms of the fact that bamboo is a plant that is believed to be an inexhaustible resource, but also for the wide amount of rest from its multiple uses.


2021 ◽  
Vol 1 (4) ◽  
pp. 240-245
Author(s):  
Diana Alia ◽  
T. M. Budhi Hartanto ◽  
Reski Kurniawan ◽  
T. A. N. Putra Indiarto ◽  
Adi Prasetya

Nowadays, the development of renewable energy resource technology is increase. There is a lot of research being done to find solutions to increasing energy needs while the energy resources are getting more and more of a concern. There are several types of energy plants with renewable power such as micro hydro, photo voltage, wave energy, footstep, and others. Foot step is a renewable energy resource that has only recently been glimpsed by the world. Therefore, the footstep will be applied on board the passenger ship. It is hoped that the use of this renewable energy source can replace the source of fuel energy to drive ship engines. In this researdh, piezoelectric was used as a energy resources. Piezoelectric will be placed on tiles, when the piezo is stepped on, there will be a voltage came out from piezo. Voltage from piezo will be colect and stored. Each piezoelectric produces a voltage that varies from 0.7 volts to 3.7 volts. If on an average, one piezoelectric can produce 2 volts. The size of the voltage issued by the piezo depends on the size of the pressure on the piezo.


Author(s):  
Mubenga Carl Tshamala ◽  
Robert T. Dobson

Coal is burnt in actual Fischer-Tropsch process to provide heat for steam generation required for coal gasification in a coal conversion-to-liquid (CTL) fuel process. In light of the world energy demand growth and consumption rate of the world reserves, the use of alternative energy resource for heat supply to a CTL process seems to be more attractive. It is expected that the use of alternative energy on the current process will not only contribute to the extension of the coal reserves life-time but will also significantly contribute to reduce the carbon foot-print. In this study, a high-temperature gas cooled reactor is considered to supply heat to a 240 MWth CTL process and a HPHE is conceptually designed for physical dimensions and its dynamic behaviour is observed. The process heat superheated steam is generated in a once-through heat pipe heat exchanger steam generator using sodium as working fluid. A heat pipe heat exchanger once through steam generator is modelled and simulated with the aim of predicting the transient and dynamic behaviour of the heat transfer process occurring in the HPHE.


Lightning phenomenon over the years has been subject of debate of scientists as well as that of people. For some, it is the manifestation of their deities, and, for others it is nothing but a simple display of colors along with fearsome sounds with a destructive power. We know by the work of scientists like Benjamin Franklin (18th century) that it was not what we used to think, and, has some explanations. We now, have understood how the clouds get charged, and how they, in turn, induce charges on the surface of the earth below them. The different types of strokes were also better understood along the way. With the grasp of the real phenomenon, scientists worked out its multiple threats to transmission lines, and therefore, came up with some protective devices to avoid the total catastrophe that could occur should these strokes be left without any preventive measures. Hence, many protective devices came to life with special applications; one of which the lightning arrester. The latter one helps a lot, especially nearby substations by grounding lightning induced energy. We also know that scientists have been discussing the possibility of capturing lightning energy, and, use it to compensate the deficit in energy demand from the world needs in terms of energy. We are using here a capacitor-lightning arrester combination to try and store the lightning-induced energy in transmission lines. We shall carry out this work by making use of the ability of the capacitor while subjected to a surge, and then, find out about the energy it can store by getting charged up. we shall also make use of SmartDraw software for our designs and models. The aim here is to target how we could possibly break the grounds in the mastering of the ever-lost lightning energy to ground.


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