A Study on Potential for Using New Energy and Renewable Energy Sources in Railways
Issue:
Volume 8, Issue 4, July 2019
Pages:
45-51
Received:
26 November 2018
Accepted:
22 January 2019
Published:
19 August 2019
Abstract: Railway is a kind of widely recognized low-carbon means of transport in which new energy and renewable energy sources can be used on a large scale for rail traction. Also，the power and various forms of heat provided by new energy and renewable energy sources can be used massively for non-traction purposes. The share of electrified railways is the main factor determining the utilization of new energy and renewable energy in railways. The total length of electrified railways in China has exceeded 6.5×104km and it is the longest worldwide. The share of electrified railways in China is expected to reach or even exceed 70% by 2020. Worldwide，electric traction has an enormous room for further development, creating a sound technical platform for a large-scale application of new energy and renewable energy sources. As for non-traction applications, because there are usually a lot of large stations along a railway line, energy use is intensive. This, plus the power needed from equipments along the line，creates conditions for the use of new energy and renewable energy sources. China started to research，develop and utilize the new energy and renewable energy sources in its railways a long time ago and the main energy sources used include solar energy, ground source heat pumps and air source heat pumps. With the use of new energy and renewable energy sources, the railway industry can become a pathfinder to first extensively realize the low-carbon or carbon-free growth among all the industries, and this still requires the further consummation of relevant policies and a strong support from government.
Abstract: Railway is a kind of widely recognized low-carbon means of transport in which new energy and renewable energy sources can be used on a large scale for rail traction. Also，the power and various forms of heat provided by new energy and renewable energy sources can be used massively for non-traction purposes. The share of electrified railways is the m...
Show More
A Deep Outlook for the Chalcopyrite Solar Cells: For Future Perspectives
Songul Fiat Varol,
Guven Cankaya
Issue:
Volume 8, Issue 4, July 2019
Pages:
52-65
Received:
29 June 2019
Accepted:
24 September 2019
Published:
24 October 2019
Abstract: This publication investigates to present all new scientific and industrial works all rolled into one with more effective and predictability aspect in chalcopyrite Photovoltaics (PVs). The paper suggests that comprehensive and fine-tuned directions supporting a large portfolio of solar energy materials could be extended to most efficiency, which mostly depend on the growth techniques especially usage rates in substituents and their characteristic/specific properties. There is an indispensable source of solar energy. If this were the case, new energy materials could well become a competitive alternative in many applications within the next few years. This publication builds upon past analyses of chalcopyrites contained in the word Energy outlook as efficient alternative materials. It aims at offering an updated picture of current technology trends/demands/markets, as well as new analyses on how solar energy technologies/materials for capturing the purposed efficiency and durableness can be used in the various energy consuming/developing sectors, now and in the future. In this work we have tried to summarize the all significant studies about Chalcopyrite solar cells from the past to the present and also tried to introduce Te doped CuInGaSeTe compound which is a new member of the family that we produced.
Abstract: This publication investigates to present all new scientific and industrial works all rolled into one with more effective and predictability aspect in chalcopyrite Photovoltaics (PVs). The paper suggests that comprehensive and fine-tuned directions supporting a large portfolio of solar energy materials could be extended to most efficiency, which mos...
Show More
