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Numerical Investigation of the Flow inside the Combustion Chamber of a Plant Oil Stove

Journal of Thermal Science 2013年第5期22卷 491-496页

作者： B. Pritz M. Werler H. Wirbser M. Gabi Institute of Fluid Machinery Karlsruhe Institute of Technology (KIT)Kaiserstr. 12 76131 Karlsruhe Germany Institute of Technical Thermodynamics KITKaiserstr. 12 76131 Karlsruhe Germany

Recently a low cost cooking device for developing and emerging countries was developed at KIT in cooperation with the company Bosch und Siemens Hausger^ite GmbH. After constructing an innovative basic design further development was required. Numerical investigations were conducted in order to investigate the flow inside the combustion chamber of the stove under variation of different geometrical parameters. Beyond the performance improvement a further reason of the investigations was to rate the effects of manufacturing tolerance problems. In this paper the numerical investigation of a plant oil stove by means of RANS simulation will be presented. In or- der to reduce the computational costs different model reduction steps were necessary. The simulation results of the basic configuration compare very well with experimental measurements and problematic behaviors of the ac- tual stove design could be explained by the investigation.

关键词： plant oil stove cooking device fuel evaporation combustion chamber CFD RANS

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High impact of vehicle and solvent emission on the ambient volatile organic compounds in a major city of northwest China

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Chinese Chemical Letters 2022年第5期33卷 2753-2756页

作者： Yonggang Xue Liqin Wang Suixin Liu Yu Huang Long Chen Long Cui Yan Cheng Junji Cao State Key Lab of Loess and Quaternary Geology(SKLLQG) Institute of Earth EnvironmentChinese Academy of Sciences(CAS)Xi’an 710061China CAS Center for Excellence in Quaternary Science and Global Change Xi’an 710061China Guanzhong Plain Ecological Environment Change and Comprehensive Treatment National Observation and Research Station Xi’an 710061China School of Human Settlements and Civil Engineering Xi’an Jiaotong UniversityXi’an 710049China

Monitoring of ambient volatile organic compounds(VOCs)was conducted within typical residentialcommercial area in the city of Xi’an in northwest China during typical ozone(O_(3))episodes,to investigate the major contributors to the characteristic of ambient VOCs and their impact on O_(3) *** the residential-commercial area,diurnal variation of VOCs was highly impacted by vehicle exhaust,fuel evaporation,and local solvent *** higher contributions(up to 60%)of VOCs from solvent use to the ozone formation potential were *** present findings highlight the urgent need for restrictions on the emission of VOCs from solvent use and non-vehicle-traffic-related sources,such as oil storage.

关键词： VOCs Vehicle exhaust fuel evaporation Solvent using Northwest China

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