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Topic Name: Low-emission, High-performance Engine For Future Hybrids
Category: Mechanical
Research persons: Qingfeng Li and colleagues
Location: baijing, China
Details
Researcher: Qingfeng Li and colleagues
Abstract: In an advance toward introduction of an amazing new kind of
internal combustion engine, researchers in China are reporting development and
use of a new and more accurate computer model to assess performance of the
so-called free-piston linear alternator (FPLA).
Research summary: Their study of the FPLA, which could provide a
low-emission, fuel efficient engine for future hybrid electric vehicles, is
scheduled for the Sept. 17 issue of ACS' Energy & Fuels, a bi-monthly journal.
Qingfeng Li and colleagues point out that the FPLA has only one moving part
and is an engine designed to generate electricity. In the device, a piston in a
cylinder shuttles between two combustion chambers. Permanent magnets on the
piston generate electricity by passing through the coils of an alternator
centered on the cylinder. The engine can burn a variety of fuels, including
natural gas and hydrogen, and seems ideal use in a future world of climate
change and possible fossil fuel shortages, they suggest.
Their report describes development of a better computer model to evaluate
performance of the FPLA and guide engineers in construction of the engine.
Results of their initial simulations showed that the FPLA could accelerate three
times faster than other internal combustion engines and burns fuel in ways that
minimize air pollution. "It is an environmentally friendly power source for the
future," the report concludes.
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