ТРАНСПОРТ, ЕКОЛОГИЯ - УСТОЙЧИВО РАЗВИТИЕ
Сборник доклади от научно-техническа конференция ЕКО Варна
ISSN (Online) 2367- 6965
ISSN (Print) 2367- 6299
Том XXII, 2015
Главен научен редактор:
Проф. д-р инж.
Технически Университет - Варна
Сборникът с докладите от конференцията “EКО ВАРНА“ излиза ежегодно, като първият брой е издаден през 1995 година. Основен организатор на конференцията е катедра „Транспортна техника и технологии” при Технически университет - Варна.
Съорганизатори са ТО на НТС Варна, Българска асоциация автомобили на природен газ, Български газов център, СНАТЕБ и др. Участници са научни работници от всички висши учебни заведения в България, екологични и газови организации, учени от Сърбия, Русия, Украйна, Турция, Полша и др.
Следващото двадесет и второ издание на конференцията ще се проведе от 19 до 21 Май 2016 г. в хотел Swiss-Belhotel Varna (бившият Димят).
Програма за конференцията 19 - 21 Май 2016 г. може да изтеглите от тук!
Актуален сборник том XXII, 2015
THE INFLUENCE OF ATMOSPHERIC PRESSURE ON THE FORMATION OF TORQUE CHARACTERISTICS OF DIESEL ENGINE WITH TURBOCHARGER, ANALYZING CONTROL PROGRAM OF 1.9TDI VAG GROUP A.G. ENGINE BASED ON THE BOSCH ENGINE CONTROL UNIT OF TYPE EDC15P.
Rafał Heda, Marcin Tkaczyk, Uzuntenev Trifin, Radosław Włostowski
The aim of the study is analyze the effect of barometric pressure sensor on the formation of engine torque characteristics with the supercharged. Analyzed was maps contained in the engine control program that take into account the ambient pressure and have a direct influence on the torque characteristics of the engine.
barometric sensor, atmospheric pressure, ambient pressure, engine torque, engine control unit
1. Jan A. Wajand, Jan T. Wajand, Tłokowe silniki spalinowe, WNT
2. Janusz Mysłowski, Doładowanie silników, WKŁ
3. Janusz Mysłowski, Józef Kołtun, Elastyczność tłokowych silników
4. Informator techniczny Bosch, Czujniki w pojazdach samochodowych, WKŁ
5. Informator techniczny Bosch, Mikroelektronika w pojazdach, WKŁ
6. Anton Herner, Hans Juergen Riel, Elektrotechnika i elektronika w pojazdach samochodowych, WKŁ
EVALUATION OF THE EFFICIENCY OF THE INTERNAL COMBUSTION ENGINE POWERED BY SYNGAS
Anna Janicka, Michał Rodak, Maria Skrętowicz, Kamil Trzmiel, Radosław Włostowski, Maciej Zawiślak
In the article evaluation of the efficiency of the internal combustion engine powered by syngas was presented. Eleven tests on the special preparing test station was carried out. The tests were performed for a synthetic gas mixtures characteristic for syngas (ie. hydrogen, carbon mono and dioxide, methane), which is produces by biomass gasification process. The results of the tests allowed to assessment of the parameters characterizing the engine powered by gas fuel (syngas) regarding to its efficiency and ecological aspects.
syngas, internal combustion engine, alternative fuel, exhaust emission, ecological engine.
1. Sangeeta, Moka S., Pande M., Rani M., Gakhar R., Sharma M., Rani J., Bhaskarwar A. N., 2014, Alternative fuels: An overview of current trends and scope for future, Renewable and Sustainable Energy Reviews vol. 32, pp. 697–712;
2. Lee S., Speight J.G., Loyalka S.K., 2007, Handbook of alternative fuel technologies, Boca Raton: CRC Press;
3. Hossain A.K., Davies P.A., 2013, Pyrolysis liquids and gases as alternative fuels in internal combustion engines – A review, Renewable and Sustainable Energy Reviews vol. 21, pp. 165–189;
4. Głodek E. 2010, Opole, Zgazowanie biomasy. Przewodnik. Instytut Ceramiki i Materiałów Budowlanych, Oddział Inżynierii Materiałowej, Procesowej i Środowiska;
5. E4tech, 2009, Review of Technologies for Gasification of Biomass and Wastes, Final raport, NNFCC project 09/008;
6. Piskowska-Wasiak J., 2011: Oczyszczanie i przetwarzanie gazu ze zgazowania biomasy w celu wytworzenia SNG (Substitute Natural Gas), Nafta-Gaz, vol. 5, pp. 347-360.
CATALYSTS ON HEAVY DUTY NATURAL GAS ENGINES
A common industry and operator’s question is, “Why do we have to control the emissions from our engines?” The answer comes simply from the creation of the Environmental Protection Agency (EPA) in 1970 by US Congress at the request of President Nixon. Over the following years, EPA in concurrence with the states and sometimes even smaller local entities, have passed rules targeting to reduce the emissions of pollutants that have demonstrated human health or other adverse environmental effects. Currently acting Codes of Federal Register (CFR) referring to industrial engines are: 40 CFR Part 60, Subpart JJJJ, Stationary Spark Ignition Internal Combustion Engines - known as Quad J; 40 CFR 60 Subpart IIII, New Source Performance Standards for Stationary Compression Ignition Internal Combustion Engines - known as Quad I; and 40 CFR Part 63, Subpart ZZZZ, National Emission Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines - known as Quad Z, . All three codes rule the maximum pollutant amounts that can be emitted from any industrial engine no matter of their size or use, but differ for their horse power (hp) range and hours of operation.
US EPA, Internal Combustion Engine (ICE) regulations, Industrial engine emissions, Engine catalysts
THE CASE FOR REDUCING DIESEL EMISSIONS
A variety of incentives are available for reducing diesel emissions. In some cases, these can be combined and tailored for specific sectors. Income tax incentives can take the form of exemptions, deductions, and credits but they are also not applicable to publicly-owned fleets and might not address users in low tax brackets. Grant programs are the most popular current funding program for retrofits. Grants provide funds directly to owners and operators to pay for new engines or vehicles, or equip existing fleets with retrofit equipment. They allow direct funding of equipment to the fleet owners. Examples are the Carl Moyer Program in California, the Texas Emissions Reduction Plan (TERP), and the EPA Clean School Bus USA grant program. Recognizing that many states have developed successful clean diesel programs over the years, US Congress authorized the Environmental Protection Agency (EPA) EPA’s Diesel Emissions Reduction Act (DERA) program to provide funds to states directly, as well as to establish a national competitive grant program. Administered by EPA’s National Clean Diesel Campaign (NCDC), competitive awards fund more projects every year. Grant programs can be very effective, but require more effort to implement on both the government and private sides than tax incentives. Contract terms on public projects can also be used to provide incentives for retrofits. Contract terms can be used in multiple sectors and by any entity that pays for a service that is provided in part by a piece of diesel equipment.
National Clean Diesel Campaign (NCDC), DERA funds, Health and Diesel emissions, Diesel retrofit
1.Regulatory Impact Analysis: Control of Emissions of Air Pollution from Highway Heavy-Duty Engines.EPA420-R-00-010. July 2000;
2.Final Regulatory Analysis: Control of Emissions from Nonroad Diesel Engines. EPA420-R-04-007,May 2004;
3.US EPA Diesel Hazard Assessment Document for Diesel Engine Exhaust. 2002. EPA600-9-90-057FOffice of Research and Development, Washington DC;
4.Hill LB, Zimmerman NJ, and Cooch J. A Multi-City Investigation of the Effectiveness of RetrofitEmissions Controls in Reducing Exposures to Particulate Matter in School Buses. Clean Air TaskForce report, January 2005. Jackson, NH;
INFLUENCE OF EXHAUST GAS RECIRCULATION ON FUEL CONSUMPTION
Environmental advantages of biodiesel can be summarized as - non-toxic, with good flavor, biodegradable, significantly reduces emissions compared to diesel fuel, stored easily in containers in warmer climates. Environmental advantages of biodiesel can be summarized as - non-toxic, with good flavor, biodegradable, significantly reduces emissions compared to diesel fuel, stored easily in containers in warmer climates. Biodiesel e and decision to increase security of energy supply and reduce some of the environmental problems.
biodiesel, emission system for exhaust gas recirculation (EGR), nitrogen oxides, circuit indicators, economic indicators
 Hebbar G.S., A.K. Bhat. 2009. Analysisof performance and emissions of a naturally aspirated stationary DI diesel engine with exhaust gas recirculation,.
 Samion N.A. 2009. Emissions of continuous combustion from blended Jatropha oil. Undergraduateproject thesis, Universiti Tun Hussein Onn Malaysia, Faculty of Mechanical and Manufacturing Engineering,
 Golddemberg J., L. D.Villanueva. 2003. Energia, meio ambiente & desenvolvimento. São Paulo: Edusp.
 Ramadhas A.S., S.Jayaraj, C. Muraleedharan. 2/2010. Performance and emission studies on biodiesel-liquefied petroleum gas dual fuel engine with exhaust gas recirculation, Renewable Sustainable Energy, doi:10.1063/1.3302019.