Open AccessEconomic aspects of using hydrogen in compression ignition engine operating on gas-diesel cycle
Author(s) -
Emil Dimitrov,
Spas Pantchev,
Philip Michaylov,
Mihail Peychev
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/664/1/012022
Subject(s) - diesel engine , diesel cycle , internal combustion engine , diesel fuel , automotive engineering , hydrogen fuel enhancement , hydrogen , environmental science , combustion , engine power , fuel mass fraction , mass fraction , hydrogen fuel , compression ratio , power (physics) , combustion chamber , engineering , chemistry , physics , thermodynamics , vapor lock , organic chemistry
The article gives an overview of the economic aspects of a single-cylinder internal combustion engine dual fuel operation with diesel fuel and hydrogen. The engine operating costs are calculated. Two separate cases are investigated. The first case is at constant engine speed – 1500 rpm, constant engine power (1.5 kW) and variable hydrogen mass fraction in the total fuel mass (from 0 to 50%) and the second case is at constant engine speed – (1500 and 2000 rpm), constant hydrogen mass fraction in the total fuel mass (10%) and variable engine power (1 to 4 kW). The following parameters (as a function of the corresponding variable) are determined for both cases: expenses for hydrogen and diesel fuel (in €;/hour), price of the energy obtained at the engine crankshaft (in €;/kWh), expenses for the CO 2 emissions emitted by the engine (in €;/hour). The weighted average of the fuel mixture price (in €;/kg) is also determined for the first case. The calculations are made using average fuel prices in Germany for April 2019. A predominant growth in the operating costs is observed as a function of the growing hydrogen mass fraction and increasing engine power. A significant reduction in the price of CO 2 emissions at constant engine power and growing hydrogen mass fraction is observed due to the lower exhaust gas toxicity.