Browsing by Author "Battulga Nasanjargal"

Now showing 1 - 7 of 7
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    Design of vehicle fuel flowmeter
    (German Mongolian Institute for Resouce and Technology, 2022-05-30) Dulamjargal Altankhuyag; Battulga Nasanjargal; Odbileg Norovrinchen
    In this paper, I have proposed a technique as a testing method for the instrument of measuring the amount of fuel used concerning the motion of the vehicle. The research was undertaken on the fuel consumption of the Mitsubishi Fuso Rosa Bus of GMIT starting from Nov 2021 till May 2022. It is essential to design a fuel measuring device to solve conflicts between drivers and economists calculating the real consumption of fuel. The research phase consists of reviewing the current studies on the given topic, then designing an appropriate fuel flowmeter model and simulating it to check the desired results.
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    Life Time Evaluation of Laser-Coated Pump Parts in the Mineral Processing Industry
    (German Mongolian Institute for Resouce and Technology, 2019-09-08) Dulguun Narmandakh; Ariunbolor Purvee; Battulga Nasanjargal
    This thesis aims to choose the best laser coating powder system among experimented materials and to estimate the useful life of specific laser coated pump parts. Slurry pumps in mineral processing are parts which erode away very quickly. Erosion is dominantly caused by abrasion from fine particles of the ore. Due to its cause, the process of erosion takes place on impeller blades and cover plates which have direct contact with the slurry. Erdenet Mining Corporation has cooperated with GMIT and Prof. Dr. Gunther Stehr for this thesis work as a project. The Corporation supplied self-produced impeller and cover plate of the slurry pump (GrAT–1400/40). This type of pump is designed in Russia. It used for delivering Copper and Molybdenum ore in Concentration Plant at Erdenet Mining Corporation. The GRAT – 1400/40 pump parts were delivered to Germany for laser coating and shipped back for trial. At Concentration Plant of Erdenet Mining Company, we used three different thermal coatings to have early research point to gain the most suitable solution as trial. Technical estimations have been done. Without changing design or base material (economically suitable material for the area), gaining higher lifetime is very important. Achieving favorable result would greatly benefit industries which specifically uses pump for delivering slurry.
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    Measurement and 3-dimensional Simulations of Carbon Monoxide (CO) Distribution in Mongolian Ger
    (2023) Byambakhorol Battsetseg; Gantuya Ganbat; Battulga Nasanjargal
    Ulaanbaatar is one of the most polluted cities in the world, especially in wintertime. During the past two decades, several national and internationally funded projects have been put in place to reduce air pollution. One of the implemented projects is the Government of Mongolia has decided to substitute household raw coal consumption with upgraded briquette fuels in Ulaanbaatar since 2019 in order to combat air pollution. Concentrations of particulate matter (PM2.5 and PM10) in wintertime from November 2019 to February 2020 were reduced by around 40% compared previous five years, respectively. Unfortunately, there are some negative impacts, for example, an increased number of incidences of carbon monoxide (CO) poisoning along with the coal substitution. Indoor CO poisoning causes risks to people living in Mongolian gers and houses. In this study, we performed a numerical simulation of CO distribution by using the COMSOL Multiphysics. The study enables us to understand the CO distribution in Mongolian ger. The numerical simulations show, that when ger is assumed empty, the CO concentration is the largest around the stove, then becomes less from stove to crown, and is minimum near the lattice wall. In addition, CO concentration in gers and houses were recorded during the heating period. The results of this study offer important information that can be used to develop recommendations for enhancing indoor air quality in gers. By understanding the dynamics of CO distribution within traditional dwellings, strategies can be advised to improve ventilation, stove, and CO detector placements, reduce the risk of CO poisoning, and promote healthier living conditions for residents.
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    Measurement and 3-dimensional Simulations of Carbon Monoxide (CO) Distribution in Mongolian Ger
    (2023) Byambakhorol Battsetseg; Gantuya Ganbat; Battulga Nasanjargal
    Ulaanbaatar is one of the most polluted cities in the world, especially in wintertime. During the past two decades, several national and internationally funded projects have been put in place to reduce air pollution. One of the implemented projects is the Government of Mongolia has decided to substitute household raw coal consumption with upgraded briquette fuels in Ulaanbaatar since 2019 in order to combat air pollution. Concentrations of particulate matter (PM2.5 and PM10) in wintertime from November 2019 to February 2020 were reduced by around 40% compared previous five years, respectively. Unfortunately, there are some negative impacts, for example, an increased number of incidences of carbon monoxide (CO) poisoning along with the coal substitution. Indoor CO poisoning causes risks to people living in Mongolian gers and houses. In this study, we performed a numerical simulation of CO distribution by using the COMSOL Multiphysics. The study enables us to understand the CO distribution in Mongolian ger. The numerical simulations show, that when ger is assumed empty, the CO concentration is the largest around the stove, then becomes less from stove to crown, and is minimum near the lattice wall. In addition, CO concentration in gers and houses were recorded during the heating period. The results of this study offer important information that can be used to develop recommendations for enhancing indoor air quality in gers. By understanding the dynamics of CO distribution within traditional dwellings, strategies can be advised to improve ventilation, stove, and CO detector placements, reduce the risk of CO poisoning, and promote healthier living conditions for residents.
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    Measurement and 3-dimensional Simulations of Carbon Monoxide (CO) Distribution in Mongolian Ger
    (2023) Byambakhorol Battsetseg; Gantuya Ganbat; Battulga Nasanjargal
    Ulaanbaatar is one of the most polluted cities in the world, especially in wintertime. During the past two decades, several national and internationally funded projects have been put in place to reduce air pollution. One of the implemented projects is the Government of Mongolia has decided to substitute household raw coal consumption with upgraded briquette fuels in Ulaanbaatar since 2019 in order to combat air pollution. Concentrations of particulate matter (PM2.5 and PM10) in wintertime from November 2019 to February 2020 were reduced by around 40% compared previous five years, respectively. Unfortunately, there are some negative impacts, for example, an increased number of incidences of carbon monoxide (CO) poisoning along with the coal substitution. Indoor CO poisoning causes risks to people living in Mongolian gers and houses. In this study, we performed a numerical simulation of CO distribution by using the COMSOL Multiphysics. The study enables us to understand the CO distribution in Mongolian ger. The numerical simulations show, that when ger is assumed empty, the CO concentration is the largest around the stove, then becomes less from stove to crown, and is minimum near the lattice wall. In addition, CO concentration in gers and houses were recorded during the heating period. The results of this study offer important information that can be used to develop recommendations for enhancing indoor air quality in gers. By understanding the dynamics of CO distribution within traditional dwellings, strategies can be advised to improve ventilation, stove, and CO detector placements, reduce the risk of CO poisoning, and promote healthier living conditions for residents.
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    Simulation of Coal Preparation Plant by using the Simulation Packages “Limn – The Flowsheet Processor”
    (Simulation of Coal Preparation Plant by using the Simulation Packages “Limn – The Flowsheet Processor”, 2019-07-05) Shine-Od Mongoljiibuu; Battulga Nasanjargal; Munkhjargal Chimeddorj; Dolgor Daalkhai
    In this chapter, the research objectives are presented with an outline of general background, the objective and the scope required to accomplish the consequences of the research.
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    The Investigation of Settling Processes for Tailing Thickener in Oyu Tolgoi
    (German Mongolian Institute for Resouce and Technology, 2020-06-08) Otgonzul Bat-Erdene; Renchinsambuu Ganzam; Ariuntuya Tserendorj; Battulga Nasanjargal
    This bachelor thesis based on the research work of Oyu Tolgoi (OT) LLC that OT concentrator’s tailing thickener laundry for overflow water pipe scaling problem. OT concentrator plant is reused the overflow water from the tailings thickener and its recycling rate is at least 80 %. Tailing thickener plays the main role to produce clarified effluent and thickened sludge. The most considerable issue of performance tailing thickener is the sedimentation in which is the utilization of tailings; thus, it is very important to determine its settling process. This study aimed to investigate the parameters that aspect the settling process of tailings solution. This thesis presents the results of a study conducted on settling processes of copper mineral tailings. Moreover, the following goals were expected to investigate the tailing solution characteristics, make assumptions about the scale formation causes on the case, and suggest scaling removal and preventing environmental way.