A self-calibration fiber-optic photoacoustic (PA) gas analyzer based on 2 f/1 f wavelength
modulation spectroscopy (WMS) is proposed, which utilizes gas and solid multipass …

Alkali metals, mainly K and Na, which are present in solid fuels such as biomass and coal,
play an important role during their thermal conversion, eg, in combustion or gasification. At …

A silicon cantilever-enhanced photoacoustic spectroscopy (PAS)-based trace gas analyzer
with low gas consumption is presented. A silicon cantilever-based fiber-optic Fabry–Perot (F …

Hydrogen (H 2) is an important energy carrier, however, it can be hazardous owing to the
risks involved with boring and explosion with colorless flames. By detecting the …

We develop a novel mid-infrared CO2 absorption sensor exploiting spectrally blended
features to characterize thermochemical non-uniformity of laminar premixed flames. A new …

In this study, a Eulerian–Lagrangian model is used to study biomass gasification and
release of potassium species in a 140 kW atmospheric entrained flow gasifier (EFG) …

A multi-gas NDIR (non-dispersive infrared spectroscopy) detection system consisting of two
broadband light sources and multiple detectors is established, and an interference-free …

The absorption saturation under optically thick conditions will bring difficulties to laser
spectroscopy gas sensing. We report the spectrum two wings reconstruction method and the …

The OH radical concentration was measured by applying tunable diode laser absorption
spectroscopy, which is an in situ optical method. An optical absorption region (P7. 5ff …

The release of gas-phase potassium species, mainly KOH, KCl, and K atoms, from burning
biomass fuels can introduce severe problems to boilers, such as fouling, slagging, and …