Thin Filament Pyrometry Field Measurements in a Medium-Scale Pool Fire

Wang, Zhigang; Tam, Wai Cheong; Chen, Jian; Lee, Ki Yong; Hamins, Anthony P.

doi:10.1007/s10694-019-00906-9

Cited by 8 publications

(22 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Methane has the highest peak mean temperature of 1350 K with methanol, ethanol, and acetone exhibiting maximum mean temperatures of 1316 K, 1281 K, and 1190 K, respectively. The methanol temperature profile is in agreement with previous works [10]. The thermal inertia correction applied to the thermocouple temperature has less than a 5 K influence on the mean but significantly alters the RMS.…”

Section: ____________________________________________________________supporting

confidence: 90%

“…Time-averaged temperature measurements are made along the vertical centerline of the fire plumes using S-type (Pt 10% Rh/Pt), bare-wire, fine diameter thermocouples (OMEGA P10R-001) with wire diameters of approximately 13 µm and 25 µm for the liquid and methane pool fires, respectively, and bead diameter approximately three times greater. Temperature measurements are sampled at 250 Hz for 2 min, or approximately 300 pulsing cycles [10]. The uncertainty of the temperature radiative measurements are discussed in Appendix A.4.…”

Section: Centerline Temperature Measurementsmentioning

confidence: 99%

“…The total mass of gas sampled is the product of the average volumetric flow rate measured by the mass flow controller,V , the density of the sample gas injected into the GC/MS, ρ g , and the gas sampling time, ∆t. m t =V ρ g ∆t (10) In Eq. (10), the density of the sample gas is determined from the total mass detected from the TCD and MS, m tot , for the injected sample volume, V s .…”

Section: Determining Soot Mass Fractionmentioning

confidence: 99%

“…The local soot mass fraction measurements, Y s , made at various heights above the fuel surface are calculated through a combination of Eqs. (9), (10), and 11:…”

Section: Uncertainty Analysis Of the Soot Mass Fractionmentioning

confidence: 99%

“…The exhaust flow in [7] was 0.50 kg/s; this value can be assumed to be approximately the same for Refs. [2,3,10,22,23].…”

Section: H Previous Measurements In 30 CM Pool Firesmentioning

confidence: 99%

See 4 more Smart Citations

The structure of medium-scale pool fires

Falkenstein‐Smith¹,

Sung²,

Chen³

et al. 2020

Self Cite

View full text Add to dashboard Cite

This report documents a series of time-averaged gas species measurements made along the centerline of methanol, ethanol, acetone, and methane pool fires steadily burning in a quiescent environment. All gas species measurements are obtained using a Gas Chromatograph/ Mass Spectrometer System (GC/MS) for gas samples extracted at various heights above the fire and repeated at least twice at each location. Gas species volume fractions are determined via the GC/MS using predetermined calibration factors. Soot mass fractions are simultaneously measured during the gas sampling process. The gas species volume and soot mass fractions are compared at different heights within the fire and across a variety of different fuels. Other fire parameters are measured as well, including time-averaged temperature measurements and mass burning rates.

show abstract

Section: ____________________________________________________________supporting

confidence: 90%

Section: Centerline Temperature Measurementsmentioning

confidence: 99%

Section: Determining Soot Mass Fractionmentioning

confidence: 99%

“…The local soot mass fraction measurements, Y s , made at various heights above the fuel surface are calculated through a combination of Eqs. (9), (10), and 11:…”

Section: Uncertainty Analysis Of the Soot Mass Fractionmentioning

confidence: 99%

“…The exhaust flow in [7] was 0.50 kg/s; this value can be assumed to be approximately the same for Refs. [2,3,10,22,23].…”

Section: H Previous Measurements In 30 CM Pool Firesmentioning

confidence: 99%

See 3 more Smart Citations

The structure of medium-scale pool fires

Falkenstein‐Smith¹,

Sung²,

Chen³

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

The chemical structure of a 30 cm methanol pool fire

et al. 2020

Self Cite

View full text Add to dashboard Cite

Summary This study documents a series of time‐averaged gas species measurements made along the centerline of a 30 cm methanol pool fire steadily burning in a quiescent environment. All gas species measurements were obtained using a gas chromatograph/mass spectrometer system (GC/MS). Measurements were made at different heights along the centerline of the fire and repeated at least twice for each location. Gas species volume fractions were determined via the GC/MS using predetermined calibration factors. The gas species volume fractions were compared at different heights within the methanol fire.

show abstract

A calibration and sampling technique for quantifying the chemical structure in fires using GC/MSD analysis

et al. 2021

Self Cite

View full text Add to dashboard Cite

This work presents an approach to measure, calibrate, and verify local concentrations of combustion products in pool fires steadily burning in a quiescent environment.This study describes a method that can be used to measure and verify the chemical species present in a fire. Such information is needed to assist in the development and validation of the chemistry subroutines in computational fluid dynamic fire models.Samples are extracted along the centerline of pool fires using a thermal quenching probe. Gas species volume fractions are analyzed using a custom Agilent 5977E Series gas chromatograph fitted with a permanent gas dual-column comprised of a Molsieve 5 Å and PoraBOND Q capillary columns in parallel flowing into mass selective and thermal conductivity detector. The system can identify and quantify a variety of stable reactant, intermediate, and product species collected from the fire, including several condensable species (eg, water, methanol, ethanol, and acetone).The time-weighted average soot mass fraction is determined using a gravimetric sampling method. In order to solidify the legitimacy of the measured gas composition, the results are verified by implementing different techniques, including the determination of the carbon to hydrogen ratio, calculating the argon to nitrogen ratio, and comparing the total moles estimated from the chromatogram peaks to the total moles of the injected sample.

show abstract

Thin Filament Pyrometry Field Measurements in a Medium-Scale Pool Fire

Cited by 8 publications

References 15 publications

The structure of medium-scale pool fires

The structure of medium-scale pool fires

The chemical structure of a 30 cm methanol pool fire

A calibration and sampling technique for quantifying the chemical structure in fires using GC/MSD analysis

Contact Info

Product

Resources

About