Results 21 to 30 of about 10,669 (261)

Development of Fuel Debris Inspection Methods using Air-Coupled Ultrasound

open access: yesE3S Web of Conferences, 2018
Japan has decided to start fuel debris removal on 2021. Therefore, before starting retrieval of the fuel debris, investigation of location, shape, and also properties of fuel debris have to be performed.
Hamdani Ari   +5 more
doaj   +1 more source

Development of Hybrid CNG/Diesel Dual-Fuel Engine in High Load Condition for Marine Debris Vessel

open access: yesKapal, 2023
Greenhouse gas (GHG) emissions are the most influential issue in the transportation sector in recent years due to their impact on the environment. Thus, the design of transportation power plants is necessary to ensure the lowest GHG emissions.
Frengki Mohamad Felayati   +2 more
doaj   +1 more source

Effect of Impact Block Shape and Material on Impact Wear Behavior of Zr-4 Alloy Cladding Tube

open access: yesMetals, 2022
In a pressurized water reactor nuclear power plant, metal foreign matter in the rod–rod gap of the fuel assembly is constantly rubbed and collided with the fuel rod under continuous scouring of the coolant, resulting in wear to the fuel rod and even ...
Shijia Yu   +6 more
doaj   +1 more source

On the degradation progression of a BWR control blade under high-temperature steam-starved conditions

open access: yesMechanical Engineering Journal, 2020
High-temperature control blade degradation tests simulating a beginning phase of a severe accident in BWRs has been comprehensively performed in Japan Atomic Energy Agency (JAEA). In the latest test, a mock-up of BWR bundle material has been investigated
Anton PSHENICHNIKOV   +2 more
doaj   +1 more source

Autonomous Trajectory Generation Comparison for De-Orbiting with Multiple Collision Avoidance

open access: yesSensors, 2022
Over the past four decades, space debris has been identified as a growing hazard for near-Earth space systems. With limited access to space debris tracking databases and only recent policy advancements made to secure a sustainable space environment and ...
Karla Raigoza, Timothy Sands
doaj   +1 more source

Experimental investigation on enhanced damage to fuel tanks by reactive projectiles impact

open access: yesDefence Technology, 2021
Enhanced damage to the full-filled fuel tank, impacted by the cold pressed and sintered PTFE/Al/W reactive material projectile (RMP) with a density of 7.8 g/cm3, is investigated experimentally and theoretically.
Hai-fu Wang   +4 more
doaj   +1 more source

Management of processes of space debris capture and processing into fuel

open access: yesJournal of Physics: Conference Series, 2021
Abstract The processes of space debris capture and processing into fuel are considered. The mentioned processes have a number of limitations on the choice of materials to be recycled (space debris) and on the creation of spacecraft for space debris utilization (hereinafter - space debris collector). Management of space debris capture and
M E Barkova   +3 more
openaire   +1 more source

Theoretical and Experimental Investigation of Geomagnetic Energy Effect for LEO Debris Deorbiting

open access: yesAerospace, 2022
Space debris is increasingly problematic and needs active removal, especially in low Earth orbits (LEO). Paying for the vast cost of the disposal of debris from the situation is still inevitable even though pivotal technical hurdles have been overcome ...
Guanhua Feng   +3 more
doaj   +1 more source

Theoretical studies on space debris recycling and energy conversion system in the International Space Station

open access: yesEngineering Reports, 2021
The space debris management and alleviation in the microgravity environment is a dynamic research theme of contemporary interest. Herein, we provide a theoretical proof of the concept of a lucrative energy conversion system that is capable of changing ...
Amrith Mariappan   +4 more
doaj   +1 more source

Characteristics of droplet evaporation on high-temperature porous surfaces for estimating cooling time of fuel debris

open access: yesMechanical Engineering Journal
At the Fukushima Daiichi nuclear power station, fuel debris is cooled under immersion. However, under an unexpected significant drop in water level, the water comes into contact with fuel debris that possesses a porous structure.
Kohei YUKI   +3 more
doaj   +1 more source

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