Author: Chih Jerry KuPublisher:
ISBN:
Category :
Languages : en
Pages : 410
Book Description
Determination of the optical properties of soot agglomerates from spectral transmittance measurements
Author: Chih Jerry KuDetermination of the Optical Properties of Hydrocarbon Soot Particles from Transmittance Measurements
Author: Peter Holbrook GrantPublisher:
ISBN:
Category :
Languages : en
Pages : 446
Book Description
Determination of the Wavelength Dependence of the Optical Properties of Soot from In-situ Measurements
Author: Hyunsoo ChangDissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 508
Book Description
Determination of the Optical Properties of Soot Particles from the Effective Optical Properties of Compressed Soot Pellets
Author: Harjit Singh HuraHeat and Mass Transfer in Fires and Combustion Systems
Author: American Society of Mechanical Engineers. Winter Annual MeetingPublisher: American Society of Mechanical Engineers
ISBN:
Category : Science
Languages : en
Pages : 142
Book Description
Spectral Emittance of Soot
Author: Curt H. LiebertPublisher:
ISBN:
Category : Soot
Languages : en
Pages : 20
Book Description
Spectral emittance of thin soot layers on transparent substrates.
Springer Series in Light Scattering
Author: Alexander KokhanovskyPublisher: Springer Nature
ISBN: 3030876837
Category : Science
Languages : en
Pages : 165
Book Description
The book aims to the description of recent progress in studies of light absorption and scattering in turbid media. In particular, light scattering/oceanic optics/snow optics research community will greatly benefit from the publication of this book.
Variation in Morphology, Hygroscopicity, and Optical Properties of Soot Particles Coated by Dicarboxylic Acids
Author: Huaxin XuePublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Soot aerosols are well known to be atmospheric constituents, but the hydrophobic nature of fresh soot likely prohibits them from encouraging cloud development. Soot aged through contact with oxygenated organic compounds may become hydrophilic enough to promote water uptake. In this study, the tandem differential mobility analyzer (TDMA) and differential mobility analyzer-aerosol particle mass analyzer (DMA-APM) were employed to measure the changes in morphology and hygroscopicity of soot aerosol particles upon coating with succinic and glutaric acids. The effective densities, fractal dimensions and dynamic shape factors of fresh and coated soot aerosol particles have been determined. Significant size-dependent increases of soot particle mobility diameter, mass, and effective density ([rho]eff) were observed upon coating of aggregates with succinic acid. These properties were restored back to their initial states once the acid was removed by heating, suggesting no restructuring of the soot core had occurred. Coating of soot with glutaric acid, on the other hand, leads to a strong size shrinking with a diameter growth factor ~0.60, even after the acid has been removed by heating suggesting the strong restructuring of the soot agglomerate. The additional 90% RH cycle can evidently enhance the restructuring process. The extinction and scattering properties at 532 nm of soot particles internally mixed with dicarboxylic acids were investigated experimentally using a cavity ring-down spectrometer and an integrating nephelometer, respectively, and the absorption is derived as the difference between extinction and scattering. It was found that the organic coatings significantly affect the optical and microphysical properties of the soot aggregates. The size-dependent amplification factors of light scattering were as much as 3.8 and 1.7 with glutaric and succinic acids coatings, respectively. Additional measurements with soot particles that are first coated with glutaric acid and then heated to remove the coating show that both scattering and absorption are enhanced by irreversible restructuring of soot aggregates to more compact globules. These results reveal the microphysical state of soot aerosol with incomplete restructuring in the atmosphere, and advance the treatment of atmospheric aged soot aerosol in the Mie theory shell-and-core model.
Handbook of Heat Transfer
Author: Warren M. RohsenowPublisher: McGraw-Hill
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 1528
Book Description
This wholly revised edition of a classic handbook reference, written by some of the most eminent practitioners in the field, is designed to be your all-in-one source book on heat transfer issues and problem-solving. It includes the latest advances in the field, as well as covering subjects from microscale heat transfer to thermophysical properties of new refrigerants. An invaluable guide to this most crucial factor in virtually every industrial and environmental process.