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1. Performance trends in wall-flow diesel particulate filters: Comparative analysis of their filtration efficiency and pressure drop

Author:
Orihuela, M. Pilar; Chacartegui, Ricardo; Gómez-Martín, Aurora; Ramírez-Rico, Joaquín; Becerra Villanueva, José A.
Source:
Journal of cleaner production 2020 v.260 pp. 120863
ISSN:
0959-6526
Subject:
particulate emissions,   etc   ; filters; filtration; gasoline; pollution; public health; soot;     Show all 7 Subjects
Abstract:
... Soot and particulate emissions from the transport sector are a major concern worldwide, given their harmful effects on public health and the environment. On-road vehicles are the main contributing source to this kind of pollution. They are strictly regulated in many countries, with limitations on the number and concentration of released particles, and they must be equipped with particle abatement ...
DOI:
10.1016/j.jclepro.2020.120863

2. Study on influencing factors of particle emissions from a RCCI engine with variation of premixing ratio and total cycle energy

Author:
Han, Weiqiang; Lu, Yao; Jin, Chao; Tian, Xiaocong; Peng, Yiqiang; Pan, Suozhu; Liu, Haifeng; Zhang, Peng; Zhong, Yingzi
Source:
Energy 2020 v.202 pp. 117707
ISSN:
0360-5442
Subject:
particulate emissions,   etc   ; combustion; energy; soot; temperature; volatile organic compounds;     Show all 6 Subjects
Abstract:
... Relevant researches have shown that the prolonged Ignition Delay (ID) is always directly related to the reduction in accumulation mode particle (AMP) and the increase in nucleation mode particle (NMP) emission of Reactivity Controlled Compression Ignition (RCCI) engines. However, seemingly opposite results were discovered in our recent experiments. It appears that ID has no decisive effect on part ...
DOI:
10.1016/j.energy.2020.117707

3. Investigation of the effects of split-injection on particle emissions from a Dieseline CI engine

Author:
Zeraati-Rezaei, Soheil; Al-Qahtani, Yasser; Herreros, Jose M.; Xu, Hongming
Source:
Applied energy 2020 v.262 pp. 114470
ISSN:
0306-2619
Subject:
particulate emissions,   etc   ; combustion; gasoline; mixing; nitrogen oxides; soot;     Show all 6 Subjects
Abstract:
... Premixed compression ignition (PCI) combustion techniques utilising low cetane-number (<40) fuels are associated with low engine-out oxides of nitrogen (NOₓ) and soot emissions. However, fuel-air over-mixing and high combustion noise at low and high engine loads, respectively, have been the challenges with PCI. Fuel split-injection can effectively govern the fuel-air mixing process and subsequentl ...
DOI:
10.1016/j.apenergy.2019.114470

4. Nucleation mode particle evolution in a gasoline direct injection engine with/without a three-way catalyst converter

Author:
Liu, Haoye; Li, Ziyang; Xu, Hongming; Ma, Xiao; Shuai, Shijin
Source:
Applied energy 2020 v.259 pp. 114211
ISSN:
0306-2619
Subject:
particulate emissions,   etc   ; catalysts; gasoline; particle size distribution; temperature;     Show all 5 Subjects
Abstract:
... For gasoline direct injection (GDI) engines, as the exhaust gas temperature decreases, the hydrocarbon-to-particle conversion may occur, generating nucleation mode particles. A three-way catalyst converter (TWC) may have effects on the particle evolution as exhaust temperature decreases. In the present study, the effects of TWCs on particulate matter emissions and hydrocarbon-to-particle conversio ...
DOI:
10.1016/j.apenergy.2019.114211

5. Control of intake boundary conditions for enabling clean combustion in variable engine conditions under intelligent charge compression ignition (ICCI) mode

Author:
Li, Zilong; Zhang, Yaoyuan; Huang, Guan; Zhao, Wenbin; He, Zhuoyao; Qian, Yong; Lu, Xingcai
Source:
Applied energy 2020 v.274 pp. 115297
ISSN:
0306-2619
Subject:
particulate emissions,   etc   ; carbon monoxide; combustion; combustion efficiency; gasoline; heat; nitrogen oxides; temperature;     Show all 8 Subjects
Abstract:
... In a brand-new dual-fuel combustion mode called intelligent charge compression ignition (ICCI), the intake boundary conditions, including intake pressure, exhaust gas recirculation rate, and intake temperature, were modulated towards high-efficiency and clean combustion. A series of experiments were conducted in a modified single-cylinder engine. Commercial gasoline and diesel were respectively su ...
DOI:
10.1016/j.apenergy.2020.115297

6. New biomorphic filters to face upcoming particulate emissions policies: A review of the FIL-BIO-DIESEL project

Author:
Orihuela, M. Pilar; Chacartegui, Ricardo; Martínez-Fernández, Julián
Source:
Energy 2020 v.201 pp. 117577
ISSN:
0360-5442
Subject:
particulate emissions,   etc   ; ceramics; environmental policy; filters; filtration; microstructure; porosity; research and development; silicon carbide; wood;     Show all 10 Subjects
Abstract:
... With a high number of diesel vehicles worldwide, particulate emission control is an urgent issue with a global impact, from the health of citizens to commercial future of this technology in some transport segments. Particulate filters are widely used in automotive engines to comply emissions regulations, but current technologies have room for improvement as they add additional backpressure in the ...
DOI:
10.1016/j.energy.2020.117577

7. Sustainability challenges and innovations in the Dutch egg sector

Author:
de Olde, E.M.; van der Linden, A.; olde Bolhaar, L.D.; de Boer, I.J.M.
Source:
Journal of cleaner production 2020 v.258 pp. 120974
ISSN:
0959-6526
Subject:
particulate emissions,   etc   ; Dermanyssus gallinae; animal health; egg production; eggs; interviews; social impact; stakeholders; sustainable agriculture;     Show all 9 Subjects
Abstract:
... While global demand for eggs is increasing, concerns are being raised about the environmental, economic and social impact of egg production. Efforts to address these sustainability concerns can, however, result in trade-offs. To enhance a transparent debate about future options and limitations in the egg sector, insight is needed in environmental, economic and social sustainability challenges as w ...
DOI:
10.1016/j.jclepro.2020.120974

8. Real-time PM10 emission rates from paved roads by measurement of concentrations in the vehicle's wake using on-board sensors part 1. SCAMPER method characterization

Author:
Fitz, Dennis R.; Bumiller, Kurt; Bufalino, Charles; James, David E.
Source:
Atmospheric environment 2020 v.230 pp. 117483
ISSN:
1352-2310
Subject:
particulate emissions,   etc   ; aerosols; algorithms; atmospheric chemistry; emissions factor; particulates; pavements; roads; silt; surveys; uncertainty; urban areas;     Show all 12 Subjects
Abstract:
... Based on emission factors derived from the AP-42 algorithm, particulate matter from paved roads has been estimated to be a major source of PM₁₀ of geologic origin. This is an empirical formula based on upwind-downwind measurement of PM₁₀ concentrations and is dependent solely on the silt loading of the pavement and the weight of vehicles. A number of upwind-downwind studies conducted in urban area ...
DOI:
10.1016/j.atmosenv.2020.117483

9. Investigation on condensable particulate matter emission characteristics in wet ammonia-based desulfurization system

Author:
Huang, Rongting; Wu, Hao; Yang, Linjun
Source:
Journal of environmental sciences (China) 2020 v.92 pp. 95-105
ISSN:
1001-0742
Subject:
particulate emissions,   etc   ; aerosols; flue gas; flue gas desulfurization; pH; particulates; sulfates; sulfites;     Show all 8 Subjects
Abstract:
... Particulate matter emissions from ammonia-based wet flue gas desulfurization (Ammonia-WFGD) systems are composed of a filterable particulate matter and a condensable particulate matter (CPM) portion. However, the CPM part has been ignored for a long time, which results in an underestimation of the aerosol problems caused by Ammonia-WFGD systems. In our research, the characteristics of the CPM that ...
DOI:
10.1016/j.jes.2020.01.020

10. Low-cost sensors as an alternative for long-term air quality monitoring

Author:
Liu, Xiaoting; Jayaratne, Rohan; Thai, Phong; Kuhn, Tara; Zing, Isak; Christensen, Bryce; Lamont, Riki; Dunbabin, Matthew; Zhu, Sicong; Gao, Jian; Wainwright, David; Neale, Donald; Kan, Ruby; Kirkwood, John; Morawska, Lidia
Source:
Environmental research 2020 v.185 pp. 109438
ISSN:
0013-9351
Subject:
particulate emissions,   etc   ; aerosols; air quality; carbon monoxide; monitoring; particulates; pollution; relative humidity; temperature; traffic; Australia; China;     Show all 12 Subjects
Abstract:
... Low-cost air quality sensors are increasingly being used in many applications; however, many of their performance characteristics have not been adequately investigated. This study was conducted over a period of 13 months using low-cost air quality monitors, each comprising two low-cost sensors, which were subjected to a wide range of pollution sources and concentrations, relative humidity and temp ...
DOI:
10.1016/j.envres.2020.109438

11. Significant ultrafine particle emissions from residential solid fuel combustion

Author:
Wang, Dongbin; Li, Qing; Shen, Guofeng; Deng, Jianguo; Zhou, Wei; Hao, Jiming; Jiang, Jingkun
Source:
The Science of the total environment 2020 v.715 pp. 136992
ISSN:
0048-9697
Subject:
particulate emissions,   etc   ; biomass; children; coal; elderly; emissions factor; fuel combustion; indoor air pollution; particulates; risk;     Show all 10 Subjects
Abstract:
... When addressing particulate matter (PM) emissions from residential solid fuel combustion, ultrafine particles are usually merged into PM₂.₅, while whose mass concentration is applied as the index in evaluating PM pollution as well as assessing PM-induced health risk. This may not effectively represent the risk from ultrafine particles. In this study, we explored ultrafine particle emissions during ...
DOI:
10.1016/j.scitotenv.2020.136992

12. A cleaner biomass energy production by optimization of the operational range of a fabric filter

Author:
Brandelet, Benoît; Pascual, Christophe; Debal, Matthieu; Rogaume, Yann
Source:
Journal of cleaner production 2020 v.253 pp. 119906
ISSN:
0959-6526
Subject:
particulate emissions,   etc   ; bioenergy; biomass; combustion; dewpoint; energy; equipment; fabrics; fuels; smoke; temperature;     Show all 11 Subjects
Abstract:
... Biomass combustion is the first renewable energy in the world. Nevertheless, its particles emissions are denounced. Nowadays, one of the most efficient second abatement emissions systems (SAES) for the particles consists of fabric filter. Nevertheless, this high trapping efficiency system is often bypassed due to condensation or burning issues. Small to medium-scale biomass combustion equipment ar ...
DOI:
10.1016/j.jclepro.2019.119906

13. Performance evaluation of three methanol stoves using a contextual testing approach

Author:
Makonese, Tafadzwa; Annegarn, Harold John; Meyer, Johan
Source:
Energy for sustainable development 2020 v.55 pp. 13-23
ISSN:
0973-0826
Subject:
particulate emissions,   etc   ; cooking; ethanol; heat; heating systems; kerosene; laboratory experimentation; liquids; methanol; South Africa;     Show all 10 Subjects
Abstract:
... Over the years, a significant need has been established to develop stove testing protocols that reflect the performance of fuel/stove combinations in the field better. This is particularly true for alcohol-based liquid fuels, widely seen as a future replacement for kerosene fuels in the informal and less affluent communities of South Africa. This paper aimed to evaluate three liquid-fuelled stoves ...
DOI:
10.1016/j.esd.2019.12.002

14. On-road gaseous and particulate emissions from GDI vehicles with and without gasoline particulate filters (GPFs) using portable emissions measurement systems (PEMS)

Author:
McCaffery, Cavan; Zhu, Hanwei; Li, Chengguo; Durbin, Thomas D.; Johnson, Kent C.; Jung, Heejung; Brezny, Rasto; Geller, Michael; Karavalakis, Georgios
Source:
The Science of the total environment 2020 v.710 pp. 136366
ISSN:
0048-9697
Subject:
particulate emissions,   etc   ; altitude; carbon dioxide; carbon monoxide; catalytic activity; filters; gasoline; nitrogen oxides; soot; topology;     Show all 10 Subjects
Abstract:
... This study assessed the on-road gaseous and particulate emissions from three current technology gasoline direct injection (GDI) vehicles using portable emissions measurement systems (PEMS). Two vehicles were also retrofitted with catalyzed gasoline particulate filters (GPFs). All vehicles were exercised over four routes with different topological and environmental characteristics, representing urb ...
DOI:
10.1016/j.scitotenv.2019.136366

15. Characterization of spatio-temporal distribution of vehicle emissions using web-based real-time traffic data

Author:
Meng, Xiangrui; Zhang, Kaishan; Pang, Kaili; Xiang, Xinpeng
Source:
The Science of the total environment 2020 v.709 pp. 136227
ISSN:
0048-9697
Subject:
particulate emissions,   etc   ; Internet; air pollution; air quality; exposure assessment; inventories; roads; spatial distribution; traffic; China;     Show all 10 Subjects
Abstract:
... Vehicle emissions have become an increasingly important source to air pollution in China, thus an accurate estimate of vehicle emissions is essential but challenging for policy-making toward air quality improvement. Since vehicle emissions are episodic, roadway-based micro/meso-scale emissions are getting more and more attention for roadway exposure assessment and accuracy improvement of emission ...
DOI:
10.1016/j.scitotenv.2019.136227

16. Environmentally friendly traffic control strategy - A case study in Xi’an city

Author:
Chen, Xiao; Yuan, Ziru
Source:
Journal of cleaner production 2020 v.249 pp. 119397
ISSN:
0959-6526
Subject:
particulate emissions,   etc   ; air pollution; algorithms; case studies; issues and policy; models; pollutants; traffic; urban areas;     Show all 9 Subjects
Abstract:
... Given the increasing painful repercussions of air pollution caused by massive vehicular emissions and the unsustainable development of transport sectors, the integration of traffic models with emission estimation models has been investigated in depth to evaluate the performance of the pre-determined environment-friendly transportation policies. Nevertheless, there is a lack of the optimization app ...
DOI:
10.1016/j.jclepro.2019.119397

17. A review of the current automotive manufacturing practice from an energy perspective

Author:
Giampieri, A.; Ling-Chin, J.; Ma, Z.; Smallbone, A.; Roskilly, A.P.
Source:
Applied energy 2020 v.261 pp. 114074
ISSN:
0306-2619
Subject:
particulate emissions,   etc   ; desiccants; energy efficiency; heat recovery; issues and policy; liquids; manufacturing; paints;     Show all 8 Subjects
Abstract:
... The automotive industry is facing on-going challenges to improve the sustainability of its manufacturing processes and vehicle emissions due to economic, environmental, marketability and policy concerns. This review aims to evaluate steps that could be taken by automotive manufacturers to further reduce energy consumed during manufacturing processes, particularly focusing on thermal management of ...
DOI:
10.1016/j.apenergy.2019.114074

18. Hydrodynamic characteristics of a 2D2D cyclone separator with a finned cylindrical body

Author:
Dasar, Mahesh; Patil, Ranjit S.
Source:
Powder technology 2020 v.363 pp. 541-558
ISSN:
0032-5910
Subject:
particulate emissions,   etc   ; boilers; cement; cyclone separators; electricity; fluidized beds; gases; hydrodynamics; industry;     Show all 9 Subjects
Abstract:
... Cyclone separators used for separating solid particles from the gases mainly employed in electricity generating units having fluidized bed boilers and in other industries such as cement industries. In the present study, cylindrical portion of the nonfinned (conventional) cyclone separator (nfcs) was reshaped by fixing triangular helical fins in order to improve its performance in terms of collecti ...
DOI:
10.1016/j.powtec.2020.01.021

19. Particulate emissions from L-Category vehicles towards Euro 5

Author:
Kontses, A.; Ntziachristos, L.; Zardini, A.A.; Papadopoulos, G.; Giechaskiel, B.
Source:
Environmental research 2020 v.182 pp. 109071
ISSN:
0013-9351
Subject:
particulate emissions,   etc   ; automobiles; cold; cost effectiveness; filters; laws and regulations; motorcycles; Europe;     Show all 8 Subjects
Abstract:
... The current experimental study presents particulate emissions from 30 Euro 1-4 L-category vehicles (i.e. 2-, 3- and 4-wheelers such as mopeds, motorcycles, quads and minicars, registered in Europe between 2009 and 2016) tested on a chassis dynamometer. The objectives were to identify those sub-categories with high emissions, to assess whether the measures prescribed in the Euro 5 legislation will ...
DOI:
10.1016/j.envres.2019.109071
PubMed:
31887467
PubMed Central:
PMC7043005

20. Real-world emissions from non-road mobile machinery in London

Author:
Desouza, C.D.; Marsh, D.J.; Beevers, S.D.; Molden, N.; Green, D.C.
Source:
Atmospheric environment 2020 v.223 pp. 117301
ISSN:
1352-2310
Subject:
particulate emissions,   etc   ; atmospheric chemistry; carbon dioxide; equipment; greenhouse gas emissions; management systems; particulates; pipes;     Show all 8 Subjects
Abstract:
... The 2016 London atmospheric emissions inventory estimates that, the construction sector contributes 34% of the total PM₁₀ and 7% of the total NOX – the largest and 5ᵗʰ largest sources, respectively. Recent on-road light duty diesel vehicle emission tests have shown significant differences between real-world NOX emissions compared with results from laboratory based regulatory tests. The aim of this ...
DOI:
10.1016/j.atmosenv.2020.117301