Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: fuel deposits

Sortuj według:

Ogranicz wyniki do:

Depozyty mułów węglowych źródłem paliwa energetycznego - informacja o projekcie rozwojowym

Baic I., Blaschke W., Szafarczyk J.

Przegląd Górniczy

2010

T. 66, nr 1-2

73-77

W trakcie ponad 200-letniej działalności górnictwa węgla kamiennego na terenie Górnośląskiego Zagłębia Węglowego zdeponowano do kilkunastu milionów ton drobnych ziaren urobku węglowego. Ziarna te do połowy ubiegłego wieku uważane były za odpady, gdyż nie było w ówczesnych warunkach możliwości ich wykorzystania. Ziarna (muły) te są częściowo wykorzystywane, a częściowo stanowią złoża antropogeniczne. Mogą być wykorzystywane do celów energetycznych. W artykule omówiono działania mające na celu, w ramach podjętego projektu rozwojowego, opracowanie rozwiązań technicznych, organizacyjnych i legislacyjnych zmierzających do wykorzystania depozytów mułów węglowych jako paliwa energetycznego.

During over 200 years of hard coal mining activity on the area of Upper Silesian Coal Basin a dozen or so million tones of fine size run of mine coal has been deposited. These grains were considered to be refuse in the first half of the last century, since there was no possibility to use them under conditions of the time. These grains (slurries) are partially used, and the other part are anthropogenic deposits. They can be used for energy purposes. Activities are discussed aimed to, within the taken up development project, work out technical, organizational and legislative solutions heading towards using of the deposits of coal slurry as source of energy (fuel).

Effect of the fuel injection splitting on the combustion process in a PFI boosted spark-ignition engine

Merola S. S., Sementa P., Tornatore C., Vaglieco B. M.

Journal of KONES

2008

Vol. 15, No. 4

331-339

Future stringent legislation on emissions in combination with the market request of an increase in engine efficiency and optimization poses a great challenge to the engine and components manufacturers. The technologies developed in the last years for Spark Ignition (SI) engines such as turbocharging and variable valve actuation are not able to totally satisfy the future normative. More progress still has to be made in terms of in-cylinder combustion process and efficiency. The aim of this paper is the optimisation of a boosted SI engine in terms of performances, fuel consumption and pollutants emissions with low costs. The experimental activity was carried out on a port fuel injection SI optical engine, equipped with a commercial four-valve head. Innovative injection strategies were tested: in particular, single and double injections were performed when the intake valves were open. Optical techniques based on 2D-digital imaging were used to follow the fuel injection in the intake manifold and simultaneously the flame propagation in the combustion chamber. Conventional measurements of engine parameters and exhaust emissions completed the experimental investigations. The tests demonstrated that the double injection strategies were characterized by higher combustion process efficiency than single injection on. The injection splitting resulted a suitable solution for the reduction in pollutants concentration in the combustion chamber and at the exhaust with a good compromise between performance and fuel consumption.