No Liner At All, Higher Service Pressures Eyed
Tulsa-based CleanNG has shifted away from basalt fiber but is maintaining a key attribute of its cylinder design — no liner at all, making for thinner walls and more capacity, with less overall weight.
The new, MagnumCel brand CleanNG tank is being promoted as a “Type V” — (there is no such designation) — but is being tested toward certification as a Type IV.
To maximize compressed natural gas vehicle range, CleanNG is looking to commercialize tanks with a higher service pressure than today’s 3,600 psi.
Basalt on the Back Burner
“Our mission is to increase fuel range and efficiency for natural gas vehicles,” the company says. The goal is a lighter tank with 30% more fuel capacity or a reduced tank size for easier vehicle design.
The firm has temporarily shelved plans to commercialize “MagnaCel” brand tanks using basalt fiber rather than carbon fiber (F&F, November 20).
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Source: Fleets & Fuels at ACT Expo 2013 in Washington, D.C.