Research of autonomous generator indicators with the dynamically changing component of a two-fuel mixture
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Engineering and Technology Faculty, Vinnytsia National Agrarian University, Ukraine
Vinnytsia National Technical University, Ukraine
Faculty of Economics and Entrepreneurship, Vinnytsia National Agrarian University, Ukraine
Ihor Kupchuk   

Engineering and Technology Faculty, Vinnytsia National Agrarian University, Ukraine
Submission date: 2022-02-04
Final revision date: 2022-06-06
Acceptance date: 2022-06-06
Publication date: 2022-06-30
Polityka Energetyczna – Energy Policy Journal 2022;25(2):147–162
Diesel generator engines operate in wide load modes; therefore, it is necessary to change the percentage of the mixture of diesel and biodiesel fuel depending on the operating mode of the engine; this ensures its technical performance at the required level in all operating modes, including starting and stopping the engine. This article describes an algorithm for the operation of a diesel generator and an algorithm for determining the composition of the fuel mixture. During the study, the ratio between the components of the mixture changed, taking into account the load modes of operation of the diesel generator, indicators of fuel supply and the formulation of the fuel mixture to ensure optimal values of technical and economic indicators. To assess the efficiency of the flow of working processes in a diesel cylinder, their duration was selected, which is estimated by the duration of the processes of fuel injection, evaporation and combustion. Using the dynamic regulation of the composition of the diesel and biodiesel fuel, the total fuel consumption increased by 5.9%, but the cost of purchasing the fuel is reduced by 10% (at prices as of November 2021) and by 14.6% (based on prices as of the beginning of 2022) compared to engine operation with diesel fuel. This confirms the expediency of using the dynamic adjustment of the composition of the fuel mixture. In addition, even higher economic indicators can be achieved by using an autonomous power plant with a diesel power capacity higher than the generator capacity.
Badanie wskaźników generatora autonomicznego z dynamicznie zmieniającym się składnikiem mieszanki dwupaliwowej
generator diesla, olej napędowy, paliwo biodiesel, tryb obciążenia, mieszanka, proces roboczy
Silniki Diesla pracują w szerokim zakresie obciążenia, dlatego konieczna jest zmiana procentowej mieszanki oleju napędowego i biodiesla, w zależności od trybu pracy silnika, co zapewni jego osiągi techniczne na wymaganym poziomie we wszystkich trybach pracy, w tym uruchamianie i zatrzymywanie silnika. W artykule opisano algorytm działania generatora diesla oraz algorytm wyznaczania składu mieszanki paliwowej. W trakcie badań zmieniały się proporcje między składnikami mieszanki, biorąc pod uwagę obciążeniowe tryby pracy agregatu prądotwórczego oraz wskaźniki podawania paliwa i tworzenia mieszanki paliwowej, aby zapewnić optymalne wartości wskaźników technicznych, ekonomicznych i środowiskowych. Do oceny wydajności przebiegu procesów roboczych w cylindrze diesla dobrano czas ich trwania, który szacowany jest czasem trwania procesów wtrysku, odparowania i spalania paliwa.
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