Design of hydrogen storage cryo-tankfor fuel cell driven vehicles
Başlık çevirisi mevcut değil.
- Tez No: 644720
- Danışmanlar: DR. DMİTRY BAVYKİN
- Tez Türü: Yüksek Lisans
- Konular: Enerji, Energy
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2014
- Dil: İngilizce
- Üniversite: University of Southampton
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 85
Özet
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Özet (Çeviri)
Hydrogen gas has been increasingly studied in recent years as a potential replacement energy for conventional energy sources such as coal, petrol, natural gas and so on. This is due to the fact that fossil fuels are swiftly diminishing and their destructive environmental impact can no longer be ignored. Furthermore, hydrogen has the highest energy density among all common fuels. This makes hydrogen a promising replacement energy storage molecule. However, due to its low volumetric energy density, H2 is difficult to store. Therefore, many studies have been done so as to find a suitable method for storing hydrogen in small, lightweight and inexpensive systems. This project focuses on the hydrogen adsorption storage method on activated carbon at 77 K over a wide range of pressures. It also proffers fundamental information regarding different methods for storing hydrogen, including compression, liquefaction, chemisorption and physisorption. (i) The mass of the total stored hydrogen, (ii) the pressure change which occurred during discharge at a constant mass flow and at a constant temperature, (iii) the amount of heat which was released as a function of pressure, (iv) the required amount of heat for realising hydrogen during discharge, and (v) the mass of the tank are investigated according to the experimental parameters which were carried out at a pressure range from 0 to 70 bars and at a temperature of 77 K. Thereafter, the hydrogen adsorption storage method is compared with that of the compressed and mainly cryo-compressed method in terms of storage capacity, tank weight, and volume. The results show that the sorption of hydrogen on activated carbon offers a technique for decreasing the hydrogen storage pressure when compared to the cryo-compressed storage method for the same amount of hydrogen storage, inner volume, and storage temperature. Keywords; Hydrogen storage; Adsorption properties; Activated carbon; Adsorption heat; Discharge heat; Compression; Liquid hydrogen
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