Composite-flywheel burst-containment study

Technical Report · Thu Apr 08 00:00:00 EST 1982

DOI:https://doi.org/10.2172/5200650· OSTI ID:5200650

Sapowith, A D; Handy, W E

A key component impacting total flywheel energy storage system weight is the containment structure. This report addresses the factors that shape this structure and define its design criteria. In addition, containment weight estimates are made for the several composite flywheel designs of interest so that judgements can be made as to the relative weights of their containment structure. The requirements set down for this program were that all containment weight estimates be based on a 1 kWh burst. It should be noted that typical flywheel requirements for regenerative braking of small automobiles call for deliverable energies of 0.25 kWh. This leads to expected maximum burst energies of 0.5 kWh. The flywheels studied are those considered most likely to be carried further for operational design. These area: The pseudo isotropic disk flywheel, sometimes called the alpha ply; the SMC molded disk; either disk with a carbon ring; the subcircular rim with cruciform hub; and Avco's bi-directional circular weave disk. The flywheel materials for the disk are S-glass; the subcircular rim is Kevlar over S-glass. Test data on flywheel bursts and containment failures were analyzed. Recommendations are made for further testing.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5200650
• Report Number(s): UCRL-15452; AVSD-0350-81-RR; ON: DE82014138
• Resource Relation: Other Information: Portions of document are illegible
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
25 ENERGY STORAGE
CONTAINMENT SYSTEMS
PERFORMANCE TESTING
SAFETY
FLYWHEEL-POWERED VEHICLES
FLYWHEELS
FAILURES
AUTOMOBILES
COMBUSTION
COST
DESIGN
EXPERIMENTAL DATA
FIBERGLASS
GASES
PERFORMANCE
RECOMMENDATIONS
RESEARCH PROGRAMS
STEELS
WEIGHT
ALLOYS
CHEMICAL REACTIONS
CONTAINMENT
DATA
ENGINEERED SAFETY SYSTEMS
FLUIDS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL ENERGY STORAGE EQUIPMENT
NUMERICAL DATA
OXIDATION
TESTING
THERMOCHEMICAL PROCESSES
VEHICLES
330500* - Advanced Propulsion Systems- Flywheel Propulsion
250500 - Energy Storage- Flywheels