scholarly journals Energy Assessment of BelAZ-75131 Gas-diesel Mining Dump Trucks Operation at Kuzbass Open Casts

2020 ◽  
Vol 174 ◽  
pp. 03010
Author(s):  
Ilya Kuznetsov ◽  
Ivan Panachev ◽  
Georgiy Dubov ◽  
Sergey Nokhrin
Keyword(s):  
Natural Gas ◽  
Diesel Fuel ◽  
Liquefied Natural Gas ◽  
Dump Truck ◽  
Energy Estimation ◽  
Gaseous Fuels ◽  
Energy Assessment ◽  
Dump Trucks ◽  
Gas Consumption ◽  
The Cost

The parameters of the BelAZ-75131 heavy dump truck im- proved model using gas-diesel mixture are given in the paper. The moni- toring analysis of the conditions and operation indicators of BelAZ-75131 heavy dump truck using diesel and gaseous fuels is done. Numerical and percentage values of the replacement of diesel fuel with liquefied natural gas when transporting exploded rock mass are determined; the volume of diesel fuel and liquefied natural gas consumption has been established. The analytical dependence to calculate the cost per unit of energy during trans- portation by mining dump trucks with gas equipment is determined. The energy estimation of diesel and gas-diesel mining dump trucks operation is given.

HIGH-RESPONSE COMPLEX FOR ANALYZING DROPLETS AND VAPORS IN AEROSOL CLOUDS FORMED IN THE ATMOSPHEREDUE TO LIQUID DISPERSION

2020 ◽  
Author(s):  
A. V. ZAGNIT'KO ◽  
◽  
N. P. ZARETSKIY ◽  
I. D. MATSUKOV ◽  
V. V. PIMENOV ◽  
...  
Keyword(s):  
Remote Control ◽  
Natural Gas ◽  
Diesel Fuel ◽  
Liquefied Natural Gas ◽  
High Response ◽  
Liquid Dispersion ◽  
Diagnostic Complex ◽  
Response Complex

The high-response diagnostic complex for remote control and analyses of droplets and vapors of mazut, oil, gasoline, kerosene, diesel fuel and liquefied natural gas in the clouds and turbulent aerosolflows in the atmosphere with volume up to 107 m3 is described.

Gas prices expose Europe’s energy vulnerability

2021 ◽  
Keyword(s):  
Natural Gas ◽  
Central Banks ◽  
Liquefied Natural Gas ◽  
Electricity Price ◽  
Energy Prices ◽  
Content Type ◽  
Indigenous Production ◽  
Europe Today ◽  
The Cost

Significance The cost of gas-fired generation sets the electricity price in much of Europe today. Falling indigenous production has left Europe reliant on gas imports and exposed it to global liquefied natural gas (LNG) prices set by fast-recovering China. This has left retail-only electricity suppliers vulnerable and increases the risk that falling disposable incomes will undermine post-pandemic recovery. Impacts EU carbon allowance prices will stay strong. Higher energy prices will stoke inflation amid a fragile recovery, posing a dilemma for central banks. Rising gas prices have had ancillary but potentially alarming impacts as some fertiliser and CO2 producers have shut in production.

scholarly journals Temperature parameters in the combustion chambers of CUMMINS KTA-50 engines operating on various fuels under different fuel consumption rates

2021 ◽  
Vol 315 ◽  
pp. 03011
Author(s):  
Georgiy Dubov ◽  
Alexander Bogomolov ◽  
Sergey Azikhanov ◽  
Pavel Strelnikov ◽  
Sergey Nokhrin
Keyword(s):  
Natural Gas ◽  
Fuel Consumption ◽  
Combustion Engine ◽  
Energy Charge ◽  
Motor Fuel ◽  
Liquefied Natural Gas ◽  
Open Pit ◽  
Mining Equipment ◽  
Evaporator Temperature ◽  
Dump Trucks

The issue of a comparative study of fuel consumption and temperature characteristics of gas-diesel BelAZ 75131 mining dump trucks equipped with an on-board cryogenic fuel system and hauling rock mass at the Kuzbass open-pit coal mine is considered in the article. A brief analysis of the efficiency of using liquefied natural gas (LNG) - methane - as a motor fuel for mining dump trucks is carried out. It is noted that the use of LNG fuel for heavy-duty dump trucks is one of the most promising ways to improve the environmental and economic performance during the operation of this type of mining equipment. The technique and instrumental base for conducting research are presented. The relationship between natural ratios of diesel fuel replacement with natural gas and the energy charge of these replacement is studied. The following data are presented: data on the consumption of vaporous (gaseous superheated) natural gas (hereinafter gaseous natural gas) during field operation of gas-diesel BelAZ 75131 mining dump trucks; flow rate of gaseous natural gas in pipelines; consumption of antifreeze at the inlet to the liquefied natural gas evaporator, as well as antifreeze temperature at the inlet and outlet of the evaporator; temperature of gaseous natural gas at the outlet of the reducer after the evaporator; data on the comparison of temperature profiles in the cylinders of CUMMINS KTA 50 internal combustion engine under diesel and gas-diesel operation.

scholarly journals OPTIMASI TARGET PRODUKSI BERBIAYA ALOKASI PEKERJAAN MINIMUM DENGAN PENDEKATAN PROGRAM LINIER (STUDI KASUS : PT. TASS ENGINEERING)

2019 ◽  
Vol 4 (2) ◽  
pp. 81-93
Author(s):  
Helena Sitorus ◽  
Ratna Suminar ◽  
Arohman Dwi Santoso
Keyword(s):  
Optimum Allocation ◽  
Dump Truck ◽  
Assignment Method ◽  
Maximum Profit ◽  
Dump Trucks ◽  
Research Findings ◽  
Optimum Solution ◽  
The Cost ◽  
A Company ◽  
Production Target

AbstrakPT. TASS Engineering adalah perusahaan yang bergerak di bidang karoseri truk. Perusahaan ini bekerja sama dengan pihak kedua (pemborong) dalam menyelesaikan pekerjaan untuk memenuhi pesanan pelanggan. Diantara produknya, terdapat 4 jenis produk (Dump Truck, Subframe, Tilting, dan Tanki Truck) yang pengerjaannya diserahkan kepada 4 tim  pemborong. Keputusan alokasi pekerjaan dilakukan dengan cara memberikan pekerjaan kepada tim yang sudah menyelesaikan pekerjaan tertentu. Cara alokasi ini ternyata menimbulkan biaya tiap tim dalam mengerjakan satu jenis produk yang sama  cukup bervariasi. Variasi biaya pengerjaan tentu saja berdampak bagi variasi keuntungan. Perlu ditentukan alokasi jenis dan jumlah pekerjaan yang tepat bagi masing-masing tim sehingga mendapatkan keuntungan yang maksimum. Hasil alokasi optimum adalah parameter keputusan kombinasi jumlah produksi tiap produk selain kapasitas tiap tim dan waktu pengerjaan.. Kombinasi jumlah tiap produk ini merupakan target produksi atau target penjualannya. Untuk itu diperlukan penelitian yang bertujuan 1) menentukan alokasi pekerjaan yang optimum, 2) menentukan target produksi tiap produk untuk mendapatkan keuntungan maksimum. Alokasi pekerjaan dilakukan dengan membandingkan metode Penugasan Hungarian dan metode Transportasi untuk memilih total biaya yang paling minimum. Solusi optimum jumlah produk yang diproduksi untuk mencapai keuntungan maksimum dilakukan dengan Program Linier. Hasi temuan penelitian menunjukkan bahwa 1) dump truck dikerjakan sebanyak 88% oleh tim-1 dan 12% oleh tim-4; subframe dikerjakan sebanyak 39% oleh tim-2, 26% oleh tim-3, 35% oleh tim-4; tilting dikerjakan oleh tim-3, dan tanki truk dikerjakan oleh tim-2. Target produksi (target penjualan) untuk mendapatkan keuntungan maksimum adalah dengan memproduksi dump truck 73 unit, subframe 120 unit, tilting 29 unit, dan tanki truk 33 unit. Solusi ini memberikan kenaikan keuntungan sebesar 0.9%.. Kata kunci: optimum, Hungarian, Transportasi, Program Linier AbstractPT. TASS Engineering is a company engaged in the truck body. The company is working with a second party (contractor) in completing jobs to fulfill customer orders. Among its products, there are 4 types of products (Dump Truck, Subframe, Tilting, and Tanki Truck) whose job is submitted to 4 teams of contractors. The decision on job allocation is done by givingit  to the team that have alredy completed their jobs. This allocation method turns out to cost each team to work on the same type of product that is quite varied. Variations in the cost of work, of course, have an impact on variations in profits. It is necessary to determine the allocation of the type and amount of work that is right for each team so as to get the maximum profit. The optimum allocation result is the decision parameter for the combination of the amount of production of each product in addition to the capacity of each team and the processing time. For this reason research is needed which aims to 1) determine the optimum allocation of work, 2) determine the production target of each product to get the maximum profit. The work allocation is done by comparing the Hungarian Assignment method and the Transportation method to choose the minimum total cost. The optimum solution for the number of products produced to achieve maximum profit is done by the Linear Program. The results of the research findings show that 1) dump trucks were handled by 88% by team-1 and 12% by team-4; subframes are done by 39% by team-2, 26% by team-3, 35% by team-4; tilting is done by team-3, and truck tank is done by team-2; 2)the production target (sales target) to get maximum profit is to produce 73 units of dump trucks, 120 units of subframes, 29 units of tilting, and 33 units of tank trucks. This solution provides a profit increase of 0.9%.Keywords: optimum, Hungarian, Transportation, Linier Programming

scholarly journals Development of Technical Requirements for On-Board Cryogenic Fuel Systems of Belaz Dump Trucks

2019 ◽  
Vol 297 ◽  
pp. 03002 ◽  
Author(s):  
Georgiy Dubov ◽  
Dmitriy Trukhmanov ◽  
Sergey Nokhrin ◽  
Aleksey Sergel
Keyword(s):  
Natural Gas ◽  
Motor Fuel ◽  
Liquefied Natural Gas ◽  
Open Pit ◽  
Promising Alternative ◽  
Technical Requirements ◽  
Production And Consumption ◽  
Dump Trucks ◽  
First Time ◽  
Further Development

The state-of-the-art of the issue of the efficiency and relevance of the use of liquefied natural gas (LNG) as a motor fuel in the operation of dump trucks is considered. An analysis of the benefits of using LNG as a motor fuel is given. It is noted that, LNG seems to be the most promising alternative to oil types of motor fuel in the segment of open-pit truck haulage. It is affirmed that in Russia, in Kuzbass, the group of companies successfully implemented for the first time an integrated project for the production of LNG and its consumption in relation to BelAZ dump trucks. Data on the relevance and the need to develop technical requirements for on-board cryogenic fuel systems of mine dump trucks are given. Data on the developed groups of technical requirements for on-board cryogenic fuel systems of BelAZ dump trucks are given. It is said that the developed technical requirements made it possible to solve a number of tasks related to the development of circuit and design solutions for equipping BelAZ dump trucks with cryogenic systems. It is argued that the developed technical requirements will contribute to the further development of domestic projects for the production and consumption of liquefied natural gas.

Use of Onboard Liquefied Natural Gas Fuel Systems for Open-Pit Dump Trucks

2005 ◽  
Vol 41 (7-8) ◽  
pp. 429-433
Author(s):  
V. E. Gerasimov ◽  
V. A. Peredel'skii ◽  
R. V. Darbinyan
Keyword(s):  
Natural Gas ◽  
Liquefied Natural Gas ◽  
Open Pit ◽  
Dump Trucks ◽  
Gas Fuel

Will Australian liquefied natural gas demand soar under the 21st Annual Conference of the Parties (COP21) targets?

2017 ◽  
Vol 57 (2) ◽  
pp. 556
Author(s):  
Francois Tibi ◽  
Nicolas Reid ◽  
Whitney Skinner ◽  
Rob Grosvenor ◽  
Anthony Smith
Keyword(s):  
Natural Gas ◽  
Ghg Emissions ◽  
Liquefied Natural Gas ◽  
Annual Conference ◽  
Cost Curve ◽  
Future Success ◽  
Bridge Fuel ◽  
Primary Focus ◽  
Natural Gas Demand ◽  
The Cost

The ambitious 21st Annual Conference of the Parties (COP21) targets of over 200 countries to limit global warming require a significant reduction in green house gas (GHG) emissions by signatories; these reductions will require major shifts in the way that countries think about their supply mix. Although renewables are often the primary focus of emissions reductions, the role of natural gas in GHG emissions warrants consideration. Gas is ‘triple A’: affordable, abundant and available. It is also lower in GHG than other fossil fuel alternatives. The future success and price stability of liquefied natural gas (LNG) projects is intrinsically linked to the success of natural gas as a bridge fuel to a lower carbon future; although there was initial optimism about the potential of natural gas as a bridge fuel under COP21, further analysis shows that forecast demand for natural gas and LNG in new policy scenarios is likely lower than original forecasts, placing Australian producers’ existing and future projects in a challenging position; moving down the cost-curve where possible is the best way to ensure resilient demand even in a slower growth future environment.

scholarly journals Sensor-Data-Driven Prognosis Approach of Liquefied Natural Gas Satellite Plant

2020 ◽  
Vol 3 (3) ◽  
pp. 34
Author(s):  
Antoni Escobet ◽  
Teresa Escobet ◽  
Joseba Quevedo ◽  
Adoración Molina
Keyword(s):  
Natural Gas ◽  
Data Analytics ◽  
Liquefied Natural Gas ◽  
Predictive Maintenance ◽  
Data Driven ◽  
Sensor Data ◽  
Gas Consumption ◽  
Using Data ◽  
Maintenance Plan ◽  
Remaining Time

This paper proposes a sensor-data-driven prognosis approach for the predictive maintenance of a liquefied natural gas (LNG) satellite plant. By using data analytics of sensors installed in the satellite plants, it is possible to predict the remaining time to refill the tank of the remote plants. In the proposed approach, the first task of data validation and correction is presented in order to transform raw data into reliable validated data. Then, the second task presents two methods for the prognosis of gas consumption in real time and the forecast of remaining time to refill the tank of the plant. The obtained results with real satellite plants showed good performance for direct implementation in a predictive maintenance plan.

scholarly journals Increasing life of pit dump truck motor-wheel gearboxes by introducing the monitoring of the actual technical condition

2021 ◽  
Vol 6 (4) ◽  
pp. 267-276
Author(s):  
A. A. Khoreshok ◽  
A. V. Kudrevatykh ◽  
A. S. Ashcheulov ◽  
A. V. Vinidiktov ◽  
L. I. Kantovich
Keyword(s):  
Technical Condition ◽  
Dump Truck ◽  
Mining Equipment ◽  
Quality Performance ◽  
Equipment Operation ◽  
Maintenance Service ◽  
Dump Trucks ◽  
Combination Of Methods ◽  
The Cost ◽  
Physical And Chemical

At present, Kuzbass coal strip mines pay great attention to improving quality performance of mining equipment operation, including reliability and durability of components and units. One of the ways of the performance improvement is decreasing number of unforeseen failures. To achieve this purpose a mine dump truck part diagnostics should be introduced into a maintenance service procedure. At the same time the process of diagnostics should not increase the machinery downtime, but effectively reveal a condition of motor-wheel gearboxes in the course of dump truck operation. The aim of the research is to increase the reliability and service life of motor-wheel gearboxes of large BelAZ dump trucks. Failure of a motor-wheel gearbox is a rare phenomenon, but the cost of a new gearbox can vary from 3.5 to 10 million rubles. That is why it is important to implement such methods of diagnostics, which allow revealing the condition of gearboxes in the shortest possible time and without disassembling corresponding units. Determination of the actual technical condition of motor-wheel gearboxes is possible by different methods: vibroacoustic; acoustic; thermal; physical and chemical analysis of spent operating materials. The studies showed that none of these methods can be used as a universal one. When justifying and selecting the most suitable method, different factors should be considered, including technological, or a combination of methods should be applied, which will reduce risks, but at the same time increase costs. It is necessary to develop a better diagnostic method based on the use of several methods simultaneously.

A Methodology to Quantify Residential Energy-Efficiency in a Heating-Dominated Climate

2011 ◽  
Author(s):  
Sean Casey ◽  
Marcus Bianchi ◽  
David Roberts ◽  
Moncef Krarti
Keyword(s):  
Energy Efficiency ◽  
Natural Gas ◽  
Inverse Modeling ◽  
Weather Data ◽  
Mechanical Equipment ◽  
Energy Assessment ◽  
Consumption Data ◽  
Gas Consumption ◽  
Natural Gas Consumption ◽  
The Difference

A methodology is presented that uses readily available information such as energy consumption data, limited building characteristics, and local daily temperature data to identify energy-inefficient homes in a heating-dominated climate. Specifically, this methodology is applied to 327 owner-occupied, single-family homes in Boulder, Colorado, which are compared to simulated prototype homes. A home’s energy-efficiency is characterized by its construction properties, such as insulation R-values, infiltration rates, and mechanical equipment efficiencies. Previous research indicates a close relationship between these properties and inverse modeling parameters, such as the heating slope (HS) values from variable-base degree-day (VBDD) models. The methodology compares the HS values from VBDD models of monthly natural gas consumption data to simulated HS values of reference homes. The difference, ΔHS, is the primary criterion for quantifying a home’s energy-efficiency and energy retrofit potential. To validate the results of the methodology, the results from a detailed energy assessment of a field-test home are used. Using the natural gas consumption noted in the utility data and historical weather data for the dates of bill, a VBDD model is created and the HSfield-test is calculated. HSreference of a 2009-IECC reference home of identical size is calculated and the difference, ΔHS, is calculated. Using UA-values and mechanical efficiencies from the energy assessment report, the theoretical HS values are calculated for both the assessed home and the reference home. The difference, ΔHStheoretical, is calculated. Overall, a 24% difference is found between the ΔHS and ΔHStheoretical. While the accuracy can be improved, the implication is that the energy-efficiency of homes can be inferred from inverse modeling of utility data under a specific set of conditions.

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