According to the analysis, with those changes plus some adjustments in valve and spark timing, the SI engine will run sufficiently fuel rich to obviate the need for a large compressor to pressurize the syngas upstream of the methanol reactor.
The challenge is that running an engine sufficiently "fuel-rich" could cause it to misfire or it could not fire at all.
No PAHs were detected in the effluent of combustion of either fuel under sufficiently fuel-lean conditions, e.g., φ < 0.5.
Significant amounts of PAHs were detected in the effluent of the combustion of both fuels under sufficiently fuel-rich conditions, e.g., φ > 1.6 and, especially, under pyrolytic conditions in N2.
That incident, which the operator Montreal Maine & Atlantic blamed on a train engineer for not braking sufficiently on an incline, fueled a drive for tougher standards for oil rail shipments.
"Businesses simply aren't sufficiently profitable to fuel new hiring," Mr. Yamarone of Argus Research said.
Their findings add to a growing body of evidence for the microscopic physical conditions behind sonoluminescence — astonishing for a table-top experiment, but not sufficiently extreme to fuel ongoing speculations of nuclear fusion reactions.
Therefore, the in situ free energy change of AOM coupled to SR is probably not sufficiently large to fuel the energy metabolism of two microorganisms in tandem (Schink 1997; Thauer and Shima 2008).
It is challenging to design a sufficiently reliable fuel cell electrical system for use in data centers, which require 99.9999% uptime.
For sufficiently high fuel flow rates and low oxidizer strain rates, the flame separates from the surface, and extinction cannot be caused by thermal quenching.
By arranging this, the raw fuel flows along the axis of the internal reformer to be moderately reformed and returns at the end of the internal reformer as a sufficiently reformed fuel.
