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154
COMPREHENSIVE ANALYSIS OF TECHNOLOGICAL AND
OPERATIONAL FACTORS CONTRIBUTING TO ELEVATED DIESEL
FUEL CONSUMPTION IN BELAZ DUMP TRUCKS OPERATING IN OPEN-
PIT MINING CONDITIONS
Kayumov Umidjon Erkinovich – Navoi State Mining and Technological
University, Department of “Mining Electromechanics”, Senior Lecturer.
ORCID: 0000-0002-2147-8973
Pardaeva Shahlo Sakhibjonovna – Navoi State Mining and Technological
University, Department of “Life Safety”, assistant.
Abdullaev Sayyor Sharofiddinovich - Navoi State Mining and Technological
University, Department of “Mining Electromechanics”, student
Abstract.
The purpose of this article is to analyse the problems affecting the
increase in fuel consumption of mine dump trucks, as well as the efficiency of BelAZ
dump trucks. Various methods of determining fuel consumption rates for dump trucks
have also been analysed. As a result of the study, data on the operation of dump trucks
from the road transport department of the Central Mining Department of Navoi Mining
Division of Navoi Mining and Metallurgical Combine were collected, and the factors
affecting the consumption of diesel fuel were analysed. As a result of researches the
estimation of operational indicators of dump trucks is given, and also the indicators
influencing fuel consumption during transportation of rock mass are revealed. In
addition, several methods of calculation of fuel consumption are proposed and
additional parameters affecting this indicator are determined. As a result of the
research, recommendations were developed to improve efficiency by reducing fuel
consumption during the operation of dump trucks.
Keywords: dump truck, fuel, internal combustion engine, diesel fuel,
consumption rates, road surface, load capacity, turning radius, performance
indicators, tire pressure.
MODERN EDUCATION AND DEVELOPMENT
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Introduction
The pace of development of the mining industry is sharply increasing. This
encourages improvements to mining equipment as well as vehicles used in it to
improve the efficiency of mining enterprises. As a result of this, special attention is
paid to the auto industry, which is considered the largest share of the transport of
minerals in the world.
Today, the Department of Road Transport is a multifaceted and
multidisciplinary unit of the Central Mining Department of the NKMC, which
performs the following functions:
In the careers” Muruntog“,” Tashkura “and” Amantaytog " are engaged in the
transportation of mass of rocks and ores in technological car transport;
The transfer of gold ore into a heap solution provides loading into the grinding
and sorting complex at the workshop.
The technological park of the traffic structure of the Department of Road
Transport consists of modern motor vehicles with a carrying capacity of Caterpillar
and BelAZ, from 55 to 220 tons, road-building cars Caterpillar, Komatsu, Dressta,
Kirovets, as well as an auxiliary park of motor vehicles with mainly different BelAZ
models.
One of the main indicators for analyzing the performance of dump trucks is fuel
consumption, which represents the amount of fuel required to cover a certain distance
or perform a certain amount of work (Sadudin Hodzic et. al., 2008; V. Kecojeviс et.
al., 2010).
One of the operational problems of dump trucks in quarries is excessive
consumption of diesel fuel, which leads to material losses for mining enterprises. This
indicator has a significant impact on planning the operation of dump trucks and
assessing their efficiency (S. Masic et. al., 2005; Kurganov V.M. et. al., 2020;
Kuznetsov I.S. et. al., 2021).
Fuel consumption is usually expressed in tons and grams per ton kilometer. To
solve this problem, we will use the following scheme to evaluate the factors affecting
diesel fuel consumption.
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Figure 1.
Factors affecting diesel fuel consumption.
A detailed analysis and calculation of fuel consumption is carried out for each
dump truck, taking into account its individual technical indicators and performance
characteristics. Therefore, we can calculate the standard fuel consumption using the
following formula.
𝑄
𝑛
= 0.01 ∙ 𝐻
𝑛
∙ 𝑆 ∙ (1 + 0.01 ∙ 𝐷) + 𝐻
𝑞.𝑛
∙ 𝑍
This is
𝑄
𝑛
−
a complex indicator of the soft standard fuel consumption in liters;
𝐻
𝑛
−
an indicator expressing the fuel consumption of a dump truck for cargo
operations;
𝑆
−
a dynamic indicator of the total distance traveled by dump trucks, measured
in kilometers.
𝐻
(𝑞.𝑛)
−
an indicator expressing the additional energy consumption of dump
trucks, taking into account the number of trips with a load, measured in liters;
𝑍
−
a figure expressing the number of trips with a load in one shift;
𝐷 −
a coefficient reflecting the total increase or decrease in energy
consumption relative to this standard, expressed in percent.
Based on the above formula, we can determine the fuel consumption of a dump
truck
𝐻
𝑛
for transportation operations as follows.
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𝐻
𝑛
= 𝐻
𝑡
+ 𝐻
𝑞.𝑚
∙ (𝐺
𝑎.𝑚
+ 0.5 ∙ 𝑞)
𝑙 100 𝑘𝑚
⁄
Here
𝐻
𝑡
is the standard fuel consumption indicator for transportation of
dump trucks with a load coefficient of 0.5;
𝐻
(𝑞.𝑚)
is the fuel consumption indicator for transportation of dump trucks
taking into account the additional mass of the dump truck;
𝐺
𝑎.𝑚
is the weight of the dump truck;
𝑞
is the load-carrying capacity of the dump truck.
Based on the above formulas, we used data from january 2024 to february 2025
to analyze the fuel consumption of dump trucks with a full load. As a result of the
calculations, a comparison diagram of the fuel consumption of dump trucks with a full
and average load was drawn up in Figure 2.
Figure 2.
Comparison diagram of fuel consumption of dump trucks with full
and average load capacity.
Analyzing the above diagram, we can conclude that the average diesel fuel
consumption for BelAZ 7513 dump trucks exceeded the standard by 13.5%, the
maximum value by 23.9%, and the minimum value by 6.3%. The best indicators of
compliance with the standard for diesel fuel consumption for BelAZ 75310 dump
trucks were shown by BelAZ No. 202, BelAZ No. 203, BelAZ No. 204, but we can see
0
20
40
60
80
100
120
BelAZ №102
BelAZ №103
BelAZ №104
BelAZ №107
BelAZ №108
BelAZ №109
BelAZ №110
BelAZ №201
BelAZ №202
BelAZ №203
BelAZ №204
BelAZ №205
BelAZ №207
Average specific fuel consumption at full load in grams per tonne km
Average specific fuel consumption in grams per tonne km
MODERN EDUCATION AND DEVELOPMENT
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that the diesel fuel consumption for BelAZ No. 201, BelAZ No. 205, BelAZ No. 207
exceeded the standard by 1%, 0.9%, and 1.03%, respectively.
Conclusions
In conclusion, following the above recommendations can significantly reduce
fuel consumption in dump trucks, which in turn will lead to reduced costs and increased
efficiency. Regular maintenance, tire pressure monitoring, efficient loading and
distribution of loads, use of quality fuel, and driver training are some of the main factors
in reducing fuel consumption.
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3. Sadudin Hodzic, Suncica Masic (2008 ) Cyclic Transport, Faculty of Mining,
Geology and Civil Engineering, Textbook, University of Tuzla (in Serbian).
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Under
Various
Engine
Load
Conditions,
https://www.researchgate.net/publication/261214668_Haul_truck_fuel_consumption
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