The phrase "insufficient combustion" is correct and usable in written English.
It can be used in contexts related to engineering, environmental science, or automotive discussions where combustion processes are analyzed.
Example: "The engine's performance was compromised due to insufficient combustion, leading to increased emissions."
Alternatives: "inadequate combustion" or "poor combustion efficiency."
At the highest altitudes, gunpowder combustion gases are insufficient due to the low ambient pressure, so CO2 expansion actuation is used instead.
Therefore the gas exchange process is compressed, resulting in insufficient intake, partial exhaust, and incomplete combustion.
Chemical looping combustion of methane with insufficient lattice oxygen could potentially lead to 40 65% hydrogen rich gas products.
The chemical nature (composition) of fuels is insufficient when determining their behaviour or efficiency during combustion, as it is the physical-chemical characteristics which provide such knowledge.
Carbon monoxide is a product of incomplete combustion of organic matter due to insufficient oxygen supply to enable complete oxidation to carbon dioxide (CO2).
In comparison, both OH-PLIF and PLII images show no visual evidences of decoupled after-injection combustion for the long-dwell case due to insufficient temperature as the additional reaction occurs later in the expansion stroke.
There was insufficient evidence to suggest that exposures to dust, motor vehicle emissions, oil combustion, and regional sulfur were statistically significantly associated with risk of preterm birth in Connecticut.
There was insufficient evidence to conclude that fine particulate levels of dust, motor vehicle emissions, oil combustion, and regional sulfur were associated with risk of preterm birth.
Utilizing stoichiometrically insufficient amounts of magnesium ensured that a large portion of molten B2O3 remained in the sample, which reduced the combustion parameters and favored the formation of boron nanoparticles.
The ability to visualize the spatial distribution of rBC in the measurement volume was particularly useful for studies of combustion systems (e.g., [ 203]), particularly those investigating turbulent and/or flickering flames where slower, scattering-based approaches were insufficient [ 204].
