Transfer of quarry dumps to gas under the conditions of the North

Khazin, M.L.

doi:10.15593/2224-9923/2019.1.5

Cited by 5 publications

(8 citation statements)

References 3 publications

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“…Natural gas, as a motor fuel, has the following advantages over diesel fuel [2,4,[6][7][8][9]:  the cost of gas is much lower than that of the equivalent in calorific value volume of oil motor fuel;  conversion of trucks to natural gas does not require significant constructive conversion of an engine itself;  engine power does not change;  engine life becomes 1.5 times longer  motor fuel consumption decreases by 20-30%;  overall transportation and operational costs are reduced;  maintenance costs are reduced;  the volume of toxic emissions into the air decreases by 2-3 times (emissions of nitrogen oxides are reduced by 2.5 times, carbon oxide -by 10 times, hydrocarbons -by 3 times, emissions of lead compounds, sulfur and soot are minimized);  engine noise is reduced by 3-5 dB (A);  methane is the safest of all types of motor fuel, the temperature of spontaneous combustion of diesel fuel and gasoline is 250-300°C, propane-butane -450°C, and methane -550°C.…”

Section: Resultsmentioning

confidence: 99%

“…-haul trucks are operated along lacet roads on steep slopes of quarries and open-pit mines (at a depth of more than 200 m); and because of the high angle of upgrades the haul truck engine is loaded to capacity at low speed, which leads to an increase in toxic emissions and fuel consumption 2-3 times [2].…”

Section: Methodsmentioning

confidence: 99%

“…), the choice of which is determined by mining E3S Web of Conferences 105, 03018 (2019) https://doi.org/10.1051/e3sconf/201910503018 IV th International Innovative Mining Symposium and geological conditions of a deposit. At present and in the near future, truck haul remains the main mode of transport for open-pit mining [2].…”

Section: Introductionmentioning

confidence: 99%

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Prospects for the Use of Liquefied Natural Gas as a Motor Fuel for Haul Trucks

et al. 2019

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The state-of-the-art of efficiency and relevance of the use of liquefied natural gas as a motor fuel for truck operation is considered. A brief analysis of economic and environmental benefits of using liquefied natural gas as a motor fuel is conducted. It is noted that liquefied natural gas seems to be the most promising alternative to oil fuels for high-payload-capacity haul trucks. It is affirmed that for the first time in Russia, in Kuzbass, OOO “Siber-Energo” successfully implemented an integrated project for the production of liquefied natural gas and its consumption in relation to high-payload-capacity BelAZ haul trucks. The data on the assessment of the energy intensity of the process of rock mass hauling by high-payload-capacity BelAZ 75131 haul trucks equipped with on-board cryogenic fuel system are presented. The data show that the energy intensity of the process of rock mass hauling by dual-fuel (gas-diesel) haul trucks is much less than that of diesel-powered haul trucks. It is said that, according to the energy criterion for evaluating the operation, it is more efficient to use haul trucks running on gas-diesel mixture.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Prospects for the Use of Liquefied Natural Gas as a Motor Fuel for Haul Trucks

et al. 2019

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“…When using liquefied natural gas as a motor fuel, the gas content of open-pit sites involved in open-cast mining is significantly reduced. The use of liquefied natural gas also allows reducing the content of toxic and carcinogenic substances in exhaust gases, increasing engine life, reducing engine oil consumption, reducing engine noise, reducing fuel costs [2][3][4][5][6].…”

Section: Methodsmentioning

confidence: 99%

Procedure for Haul Truck On-Board LNG Fuel Systems Performance Evaluation

et al. 2019

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The state-of-the-art of the advantages of using liquefied natural gas as a motor fuel for haul trucks instead of oil motor fuel is considered. It is noted that the energy intensity of the process of rock mass hauling by dual-fuel (gas-diesel) haul trucks is less than that of haul trucks running on diesel only. It is argued that the most promising in relation to heavy-duty mining trucks, is the conversion of diesel engines to gas-diesel operation. The universal integrated procedure for evaluating currently used haul truck on-board cryogenic fuel systems performance is presented. The method of evaluating the “rate of replacement” of diesel fuel with liquefied natural gas, when operating haul trucks equipped with on-board cryogenic fuel systems, is described in detail. The possible sequence of per-cycle, per-ingle-shift and per-day monitoring of the rate of diesel fuel replacement with liquefied natural gas is presented. The method for evaluating the economic efficiency of the operation of high-payload-capacity haul trucks conversed to gas-diesel operation is given, which allows, among other things, determining the actual service life of on-board cryogenic fuel systems and their time to failure.

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“…The main consumers of compressed natural gas (CNG) are passenger cars and light-duty trucks. It is assumed that the main consumers of liquefied natural gas (LNG) will be waterborne transport, line-haul trucks, mining and agricultural vehicles [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Development of the instrumentation system for gas-and-diesel fuelled BelAZ dump truck

et al. 2019

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The prospects for the use of natural gas as a motor fuel are considered. The state-run program for the development of natural-gas-fuelled vehicles will entail an increase in the share of transport operating on natural gas. The data on the thermal performance of natural gas from various fields, the volumetric heat values of the stoichiometric mixture of which is almost the same, are given. The analysis of the operation of gas-diesel-fuelled BelAZ dump truck, which burns liquefied natural gas, is conducted. The schematic diagram for engine power supply with liquefied natural gas is given. The calculation of the liquefied natural gas supply system with the replacement of diesel fuel by 33% was made. As a result of the calculation, the diameter of a fuel manifold after injectors, which provides the recommended gas velocity through a manifold, was determined. The instrumentation system for controlling the amount of supplied natural gas is proposed. The complex allows obtaining data on the instantaneous gas flow rate and the total flow rate over a period of time. A pulsation damper used as part of the system allowed reducing gas pulsation in fuel manifolds after injectors, to create conditions for the use of orifice plate flow meters, and ensured the uniform supply of natural gas to both banks of cylinders, which favourably affected the engine.

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Transfer of quarry dumps to gas under the conditions of the North

Cited by 5 publications

References 3 publications

Prospects for the Use of Liquefied Natural Gas as a Motor Fuel for Haul Trucks

Prospects for the Use of Liquefied Natural Gas as a Motor Fuel for Haul Trucks

Procedure for Haul Truck On-Board LNG Fuel Systems Performance Evaluation

Development of the instrumentation system for gas-and-diesel fuelled BelAZ dump truck

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