A Hispanic welder died when the diesel fuel tank he was welding exploded.

Keyword(s):  
2021 ◽  
Vol 32 (1) ◽  
pp. 99-104
Author(s):  
Erdenesaikhan Oyunsurtal ◽  
Ulziibaatar Tserendorj

The study is presented the result of the contamination of diesel fuel of tractor which used in agricultural sector. We took the sample from tractor fuel tank when spring’s cultivating and summer and autumn harrowing time, and analyzed the amount of contamination. The samples were taken periodically from tank tractors, autoclaves and warehouses, and the amounts of contamination contained in the fuel were determined by using the tools such as the filter tool /Millipore/, drying oven /202-OAB/, electronic weight /Sartorius BSA223s/, and microscope /Lab-Kits MB-YYS-300/ in accredited fuel and oil laboratory of Techenomics Mongolia LLC. The amount of contamination depended on the refuel to tractor on the field, and the periods of the working in the field. Especially, during the spring’s sowing and summer and autumn tillage, fuel pollution was much more and the geometric size of the mechanical mixture in the fuel was increasing. Монгол орны газар тариалангийн салбарт ашиглагдаж буй тракторын түлшний бохирдлын судалгаа Газар тариалангийн салбарт ажиллаж байгаа тракторын түлшний бохирдлыг тогтоох судалгааны ажлын үр дүнг танилцуулж байна. Хаврын тариалалт болон зун, намар тариалангийн талбайд уриншийн боловсруулалт хийх үед тракторын түлшний бакнаас дээж авч, бохирдлын хэмжээг лабораторийн шинжилгээгээр тогтоов. Талбайд ажиллаж байгаа тракторуудаас түлшний дээжийг тогтсон арга зүйн дагуу зориулалтын вакуум соруулаар авсан бөгөөд “Текеномикс Монгол” ХХК-ий түлш тосны итгэмжлэгдсэн лабораторит шүүгч багаж /Millipore/, хатаах шүүгээ /202-OAB Drying Oven/, электрон жин /Sartorius BSA223s/, микроскоп /Lab-Kits MB-YYS-300/ зэрэг багажуудыг ашиглан бохирдлын хэмжээг тодорхойлов. Лабораторийн шинжилгээний дүнгээс үзэхэд түлшний бохирдлын хэмжээнд тракторын гүйцэтгэх ажлын төрөл, түүний талбайд ажиллах хугацаа нөлөөлж байна. Ялангуяа хаврын тариалалт, намар талбайн уриншийн боловсруулалт хийх үед түлшний бохирдол их, түлшинд байгаа механик хольцын геометр хэмжээ томорч байна.  Түлхүүр үг: Дизель түлш, түлшний дээж, орчны тоосжилт, түлшний бохирдол


Author(s):  
Ian Stewart ◽  
Les Olson ◽  
Dave Cook

The potential opportunities for fuel cost and emissions reduction as a result of converting from diesel to natural gas (NG) are well known in the rail industry. Recent developments in domestic sources for petroleum have both lowered the cost and stabilized the natural gas market making the adoption of NG more strategically viable than ever before. NG Engine conversion systems for medium speed diesel engines have been available for over 20 years and environmental incentives are helping to further support the adoption of NG not only as an alternate fuel, but possibly as the new primary fuel. The major challenge for railroad transition to NG is now to develop a manageable and cost effective on board storage architecture with capacity to provide sufficient range to meet industry acceptance for general use. For long haul applications, the solution has been to add a large locomotive NG tender. For short line, switcher and commuter applications, the fuel cost benefits do not warrant the cost and complexity of such a system. For these short to medium range applications, an “on locomotive” storage system with a capacity equivalent to a minimum of 500 diesel gallons is a better solution. This paper summarizes the development of a crashworthy, high capacity, underframe NG storage solution packaged in the form factor normally occupied by the conventional locomotive diesel fuel tank (Fig. 1). Primary challenges for the CNG storage system solution are to achieve high storage density and crashworthiness while within the confines of existing AAR M-1001Plate C profile. It is expected that the system is to meet both the CFR/FRA structural requirements for diesel tanks and relevant DOT requirements for CNG cylinders used in mobile applications. The NG storage system presented consists of an outer enclosure which mounts to the locomotive similarly to the existing diesel fuel tank. The enclosure contains and interfaces with NG cylinders specifically designed for the application. The system design withstands the various load requirements defined in 49 CFR Part 238 Appendix D, that simulate both jackknife derailment and class 8 truck side impact scenarios. NG cylinders within the enclosure must be approved for use in this application and have sufficient capacity and maintainability to create new opportunities for NG conversion in the rail industry. The primary design goal for the storage system is to integrate the cylinder size and configuration within the enclosure such that storage volume is maximized and crash impact loads are minimized. Impact loads are distributed through the system ensuring that point loading sufficient to breach one or more of the NG cylinders or fuel lines does not occur. An overview of the development and results of physical derailment and side impact testing performed in support of this effort are presented.


Author(s):  
James Carter ◽  
Timothy Harrigan ◽  
S. K. Punwani

Flammable materials such as gasoline, ethanol, and diesel fuel are commonly transported in bulk via rail. In many cases, pockets of vapor can be generated inside the tank that can present a hazard if spilled during a collision or other catastrophic accident. Vapor conditions above the Lower Explosive Limit (LEL) if exposed to an external ignition source can result in an explosion or fire. Alternately, residual vapors within a tank present an explosion hazard if not properly vented or inerted prior to maintenance activities. This paper summarizes a generalized study of hazards associated with flammable liquids using computation fluid dynamics (CFD) to predict vapor conditions within a tank or following a spill. The analysis was verified in laboratory testing using scaled tank geometries. A demonstration case was developed using diesel fuel in a locomotive fuel tank. Typical road locomotives carry 3000–5000 gal of diesel fuel during normal operation. As the locomotive consumes fuel, large volumes are available for vapor generation within the tank. In a post-collision scenario, under ambient temperatures over the flash point of the fuel, the vapor that vents to the atmosphere presents a significant fire hazard. Further, flammable mists can be generated by the sprays that develop due to fuel leaks from a moving train. Studies of accident cases over a 10 year period indicated that a fire occurred in 80% of the accidents in which fuel was spilled. A CFD analysis was applied to the geometry associated with a locomotive fuel tank. The analysis models the two phase flow using the “volume of fluid” formalism in Fluent, and using a user defined diesel fuel evaporation algorithm. The tank and environmental parameters included fuel volume, fuel temperature, and air flow within the tank, and critical values of vapor content, temperature and velocity were plotted. The analysis predicted ignition of the external vapor cloud at temperatures relevant to a spill in a summer environment in the southwest, and propagation of the flame into the fuel tank. Laboratory testing confirmed the analysis: Once ignited, a flame propagated into the tank, causing an explosion and fire. The analysis methods developed can be applied to a variety of geometries and fluids, providing a basis for full scale testing. The overall intent of the analysis is to aid in the development of fire mitigation approaches for fuel and flammable material transport that would be practical for railroad use.


2021 ◽  
pp. 99-107
Author(s):  
Lev V. Ivanov ◽  
Alexey V. Soloviev ◽  
Ernest V. Rumiantcev

The article discusses the prospects for the modernization of projects of ships operating in the water areas of the main Siberian rivers, for the use of liquefied natural gas (LNG) as the main type of fuel, as well as problems associated with the adaptation of existing ship designs. LNG is a cheap, energy efficient, and more environmentally friendly analogue of traditional diesel fuel (DF). Unification of adaptation projects for common types of main engines of ships from northern shipping companies will significantly reduce operating costs. Modernization problems are associated with the storage of fuel stock on ships. The lower density of LNG in comparison with diesel fuel, as well as the need to use a cryogenic fuel tank, reduces the autonomy of the ship's operation on LNG. The analysis carried out in the article showed that with modernization, the autonomy of navigation in terms of fuel reserves can decrease by 2 times


2018 ◽  
Vol 1 (2) ◽  
pp. 131
Author(s):  
Eko Wismo Winarto ◽  
Harjono Harjono ◽  
Lava Himawan

The diesel engine lifespan increasing in marine operation will decrease their perfomance.  Some problems will occur, there are hard starting, bad exhaust gas colour and bad power output, suddenly engine stop and hard to start back. There fore any diesel engine training is needed to guard engine perfome. The KKM (Ketua Kamar Mesin= engine room head) training for maintaining their ability to serve diesel engine properly is necesary.   Their ability have came from their friend or autodidact. The 25 fishingman ships were burning at Blora quay last several mounths prove of the lack of their ability. Thre are some rutine maintenances sould be done; every 8 hours Radiator water, diesel fuel and lubricantion oil are controlled, every week (150 hours) air screen cleaning, every two weeks (250 hours) oil lubricant replacement. Every month (500 hours) readjust fuel valve, every 1000 hours oil lubricant replacement and garvernor funtion checking, every 1500 hours inlet manifold cleaning and exhaust sistem, every 3000 fuel tank cleaning and to overhaul also replacement worn out spare parts, every 6000 hours cylinder head take apart and carbonation, and every 12000 hours general over haul and replacement worn out spare part.


ROTOR ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 55
Author(s):  
Hadi Prasutiyon ◽  
Arif Winarno ◽  
Edlyn Criptosan

Biodiesel B20 is a mixture of 80% fossil diesel fuel and 20% biofuel. When using B20, the fuel has problems in the form of jelly or mud deposition, so it needs to be overcome by treatment. The treatment that is used today uses a circulation pump but has shortcomings and is not efficient so it needs to be modified using a stirrer. In this research, an analysis of the stirrer treatment using ANSYS software simulation method was carried out to determine the change of sediment before and after stirring, with stirring speed 150 rpm. The use of a stirrer simulation is to make 2 simulation models in the main tank as the largest volume and the daily tank as the smallest volume aims to determine the differences in the results of stirring in the largest and smallest tank.. At the time of stirring, the result is a decrease in sediment from 0 minutes to 4 minutes, then 4 minutes to 8 minutes, then 8 minutes to 12 minutes, then 12 minutes to 16 minutes, then 16 minutes to 20 minutes the fuel has decreased very much and the sediment is almost gone. When stirring is carried out for 20 minutes, the sediment in the fuel tank has not reached 0% so it needs to be stirred continuously until the deposit is 0%. After the fuel has not settled, the fuel is transferred to the main engine using a transfer pump. 


1995 ◽  
Author(s):  
M. Gomez
Keyword(s):  

2021 ◽  
Vol 13 (12) ◽  
pp. 6537
Author(s):  
Alena Oulehlova ◽  
Irena Tušer ◽  
David Rehak

The article deals with the application of the environmental damage assessment procedure and H&V index II method to the diesel fuel tank storage facility in a sand mining company using a case study. The procedures enabled the researchers to semi-quantitatively assess the operated diesel fuel tank’s impact on the selected environmental components and the possible damage risk by the leakage of stored fuel. It was discovered, by assessing the operating conditions, the state of the environment at the mining facility, and the risk of a diesel fuel leakage accident, that it is not necessary for the company to implement further steps in the field of environmental damage minimization. The H&V index II method examined both the impacts of diesel fuel leakage on soil, biotic component, groundwater, surface water, and the impact of flammable substances on the biotic environmental component in six steps. Slight or significant impacts were identified depending on the environmental component during the determination of the accident severity. The accident severity, together with the estimated probability, was plotted in the risk matrix which resulted in acceptable risks for all affected environmental components. The results of both approaches showed that the diesel fuel leakage in the mining company represents an acceptable environmental risk in relation to the countermeasures implemented so far.


1999 ◽  
Author(s):  
G. Kinnes ◽  
P. Jensen ◽  
K. Mead ◽  
D. Watkins ◽  
L. Smith ◽  
...  

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