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Chengxiang Zhu, Jingxin Wang, Qingyong Bian, Chunyang Liu, Ning Zhao and Chunling Zhu
Ice accretion on the inner surface of a fuel tube can fall off and potentially block the filters and small orifices, which thereby restricts the fuel flow to the engines during the long flying of the aircraft in cold conditions. This might cause the engi...
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Viktor Józsa, Dávid Csemány
Pág. 82 - 88
The last decades have emphasized the requirement for alternative energy sources, particularly in the transport sector, where combustible liquid fuels are expected to dominate in the foreseeable future. In such applications, the fuel must be efficiently a...
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Jayson Craig Small and Liwei Zhang
The performance of detonation engines depends on propellant injectors. This study investigates a fluidic-valve injector mounted to a detonation tube. The injector is equipped with a recessed cavity connecting to the fuel plenum. After verifying the theor...
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Alon Davidy
Hydrogen could be a promising source fuel, and is often considered as a clean energy carrier as it can be produced by ethanol. The use of ethanol presents several advantages, because it is a renewable feedstock, easy to transport, biodegradable, has low ...
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Vincent Domogalla, Lothar Bertsch, Martin Plohr, Eike Stumpf and Zoltán S. Spakovszky
Promising low-noise aircraft architectures have been identified over the last few years at DLR. A set of DLR aircraft concepts was selected for further assessment in the context of sustainable and energy-efficient aviation and was established at the TU B...
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Adil Al-Falahi, Falah Alobaid and Bernd Epple
Absorption refrigeration cycle is considered a vital option for thermal cooling processes. Designing new systems is needed to meet the increasing communities? demands of space cooling. This should be given more attention especially with the increasing co...
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Bach Phi Duong, Jaeyoung Kim, Cheol-Hong Kim and Jong-Myon Kim
Advances in technology have enhanced the ability to detect leakages in boiler tube components in thermal power plants. As a specific issue, the interaction between the coal fuel stream and the boiler tube membrane generates random and high-amplitude impu...
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Muhammad Sohaib and Jong-Myon Kim
Boiler heat exchange in thermal power plants involves tubes to transfer heat from the fuel to the water. Boiler tube leakage can cause outages and huge power generation loss. Therefore, early detection of leaks in boiler tubes is necessary to avoid such ...
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György Onyestyák
Pág. 91 - 96
Bioethanol valorization to butanol by continuous heterogeneous catalytic self-alkylation provides an option for the fuel industry. Dimerization of ethanol (E) was studied over activated carbon supported metal loaded and metal-free alkaline catalysts usin...
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Yang Liu, Xintong Li, Pengcheng Wang, Xiaotian Zhang, Hao Zhu and Guobiao Cai
This paper proposed a multi-objective, multi-disciplinary design optimization and multi-attribute evaluation method for the manned lunar lander descent stage. A system design model is established considering multiple disciplines such as propulsion, struc...
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Giuseppe Palaia, Karim Abu Salem and Alessandro A. Quarta
The continuously expanding transport aviation sector has a significant impact on climate change, and measures must be taken to limit its environmental impact. The study of advanced airframes, which may increase the lift-to-drag ratio and structural effic...
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Gyeong-Min Kim, Jong-Won Jeong, Jae-Seong Jeong, Dong-Yeop Kim, Seung-Mo Kim and Chung-Hwan Jeon
The use of fossil fuels has drastically increased throughout the world as the demand for energy increases. Accordingly, it has become critical that we reduce the oxides of nitrogen (NOx) and oxides of sulfur pollutants. Therefore, studies related to thes...
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Efthimios G. Pariotis, Theodoros C. Zannis and John S. Katsanis
The present study describes a model-based approach for the assessment of central cooling retrofit solutions using variable speed drive (VSD) seawater (SW) pumps in marine applications. There are two main innovative features of the proposed methodology. T...
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Maria Oksa, Jarkko Metsäjoki and Janne Kärki
Large-scale use of biomass and recycled fuel is increasing in energy production due to climate and energy targets. A 40% cut in greenhouse gas emission compared to 1990 levels and at least a 27% share of renewable energy consumption are set in EU Energy ...
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Karim Abu Salem, Giuseppe Palaia and Alessandro Antonio Quarta
The combination of new airframes with electric and hybrid-electric propulsion is a potential solution to decarbonize aviation. In this context, recent studies have proven that the box-wing airframe, if integrated on a hybrid-electric aircraft belonging t...
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Paulo Henrique Dias dos Santos, Kianny Aparecida Taborda Vicente, Layze dos Santos Reis, Larissa dos Santos Marquardt, Thiago Antonini Alves
Pág. 59 - 68
Electrical energy, solar energy, and/or direct combustion of a fuel are the most common thermal sources for home water heating. In recent years, the use of solar energy has become popular because it is a renewable and economic energy source. Among the so...
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