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Wpływ biogazu rolniczego na właściwości eksploatacyjne oleju silnikowego

Ziółkowska M., Matuszewska A., Kruczyński S., Kamela W.

Prace Naukowe Instytutu Nafty i Gazu

2015

nr 201

68--83

W artykule przedstawiono proces starzenia oleju silnikowego handlowego przy zasilaniu biogazem rolniczym na podstawie badań rzeczywistych. Badania prowadzone były w testach eksploatacyjnych na ciągniku rolniczym CASE IH MX 135 wyposażonym w silnik o zapłonie samoczynnym z dwupaliwowym systemem zasilania przystosowanym do zasilania biogazem z pilotującą dawką oleju napędowego (ON/Biogaz). Badania prowadzone były początkowo na biogazie syntetycznym o składzie 60% CH, oraz 40% CO2, a następnie na biogazie produkowanym w gospodarstwie rolniczym Poldanor S.A. w czasie 100mth. Czasookres wymiany oleju wynosił 100 mth, w trakcie którego pobierane były próbki oleju do badań zgodnie z harmonogramem. W dalszej części artykułu przedstawiono wyniki badań właściwości fizykochemicznych oleju silnikowego w trakcie eksploatacji oraz określono wpływ biogazu na proces starzenia. Przeprowadzone badania potwierdziły wysoką jakość testowanego oleju silnikowego przeznaczonego do smarowania silników o dużych obciążeniach termicznych.

This paper described research results of influence of agriculture biogas on the deterioration process of engine oil. The field tests were conducted with the use of CASE IH MX 135 agricultural tractor. The tractor was equipped with a diesel engine with dual fuel supply system which was adapted to supply biogas and diesel fuel (ON/Biogas). Initially the studies were conducted on a model biogas composed of 60% methane and 40% carbon dioxide, and then on the biogas produced in agricultural company Poldanor S.A The time of tractor work was 100 mth. After that time the engine oil was replaced. During operating period the samples of the oil were taken for testing. The authors presented research results of the physico-chemical properties of engine oil samples which were taken during field tests. They also determined influence of biogas on the aging process of engine oil. Conducted research confirmed high quality of tested engine oil for engines working under high thermal conditions.

Biogas as a fuel for diesel engines

Wierzbicki S.

Journal of KONES

2012

Vol. 19, No. 3

477-482

The pursuit of reduced greenhouse gas emissions, as well as the increased share of renewable fuels in the overall energy balance has led to a search for alternative energy sources. One of the fuels on which great hopes are set as fuel for engines is biomethane or biogas, whose main component is methane. Biogas can be obtained from different products by using different technologies, so that it has potential as a widelyavailable fuel, which is quite easy to produce. The percentage of methane in biogas depends on the technology for obtaining biogas and ranges from 35% to around 75%. The largest biogas sources can be animal farms, where it is obtained from animal excrement. Another source is sewage treatment plants and rubbish dumps, where substantial quantities of biogas are obtained as a result of natural processes occurring in waste dumping sites or sewage. Biogas can also be acquired from waste obtained from fruit and vegetable processing as well as waste from meat plants. This paper examines the possibility of using biogas as a fuel for diesel engines. In these engines, the combustion of biogas (methane) requires the application of a dual-fuel supply system in which liquid fuel initiating gas fuel selfignition will be injected into the combustion chamber along with methane. The paper also contains example results showing the effect of the methane dose on the course of the combustion process in diesel engines.