National Ignition Facility sub-system design requirements ancillary systems SSDR 1.5.6

This paper introduces the basic principle, the compost system design requirements, and to introduce biodegradable composting system and design. At the same time design the structure and layout of a small biodegradable compost pool. Base on introducing the small turning device to complete a small spiral turning device of the mechanical system design.

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An Optimization Based Methodology to Design Flexible Systems Subjected to Changing Operating Conditions

Volume 2: 31st Design Automation Conference, Parts A and B ◽

10.1115/detc2005-85147 ◽

2005 ◽

Cited By ~ 1

Author(s):

Ritesh A. Khire ◽

Anoop A. Mullur ◽

Achille Messac

Keyword(s):

Optimal Design ◽

System Design ◽

High Performance ◽

Systematic Approach ◽

Operating Conditions ◽

Flexible Systems ◽

Operating Life ◽

Design Requirements ◽

High Performance Level ◽

Critical Aspects

Flexible systems maintain a high performance level under changing operating conditions or design requirements. Flexible systems acquire this powerful feature by allowing critical aspects of their design con guration to change during the operating life of the product or system. In the design of such systems, designers are often required to make critical decisions regarding the exible and the non-exible aspects of the design con guration. We propose an optimization based methodology to design exible systems that allows a designer to effectively make such critical decisions. The proposed methodology judiciously generates candidate optimal design versions of the exible system. These design versions are evaluated using multiobjective techniques in terms of the level of exibility and the associated penalty. A highly exible system maintains optimal performance under changing operating conditions, but could result in increased cost and complexity of operation. The proposed methodology provides a systematic approach for incorporating designer preferences and selecting the most desirable design version — a feature absent in several recently proposed exible system design frameworks. The developments of this paper are demonstrated with the help of a exible three-bar-truss design example.

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ITER Shield Block Cooling System Design and Analysis

Volume 5: Fuel Cycle, Radioactive Waste Management and Decommissioning; Reactor Physics and Transport Theory; Nuclear Education, Public Acceptance and Related Issues; Instrumentation and Controls; Fusion Engineering ◽

10.1115/icone21-15395 ◽

2013 ◽

Author(s):

Weishan Kang ◽

Tao Yuan ◽

Xiujie Zhang

Keyword(s):

System Design ◽

Strain Distribution ◽

Cooling System ◽

Temperature Fields ◽

Stress And Strain ◽

Hydraulic Analysis ◽

Design Requirements ◽

Transient Thermal ◽

Cooling Pipes ◽

Stress And Strain Distribution

A steady-state thermo-hydraulic analysis of SB was done to get pressure drop and heat transfer coefficient in the cooling pipes, then a transient thermal analysis was performed to get temperature field of the SB with time in Inductive plasma operational scenario. Finally static structural analysis of the SB based on the temperature fields obtained with the transient analyses at specific time points were done to get the stress and strain distribution of the SB. The numerical analysis results were investigated by rules from ITER System Design Criteria for In-vessel Component to further verify the design. The final results of analyses indicate that the design of the SB meets with the ITER design requirements.

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