Microbial sludge formation in Brazilian marine diesel oil (B0) and soybean methylic biodiesel blends (B10 and B20) during simulated storage

Fuel ◽  
2022 ◽  
Vol 308 ◽  
pp. 121905
Author(s):  
Thais Livramento Silva ◽  
Juciana Clarice Cazarolli ◽  
Tania Mara Pizzolato ◽  
Ana Paula Guedes Frazzon ◽  
Michele Bertoni Mann ◽  
...  
Keyword(s):  
Diesel Oil ◽  
Sludge Formation ◽  
Biodiesel Blends ◽  
Marine Diesel

Research on Application of Waste Plastic Disposal of Marine Diesel Engines

2008 ◽  
Vol 45 (04) ◽  
pp. 191-193
Author(s):  
Wei Hai-jun ◽  
Wang Guo-you ◽  
Wang Xiao-rui
Keyword(s):  
Diesel Engines ◽  
Calorific Value ◽  
Diesel Oil ◽  
Fuel Oil ◽  
Advanced Technique ◽  
Engine Operation ◽  
Waste Plastic ◽  
Marine Diesel ◽  
Points Of View ◽  
Research On Application

The purpose of this paper is to study the applicability of thermal processed fuel oil (hereafter called waste plastic disposal, or WPD) of diesel engines using low-quality fuel oil. In the experiment, stability of engine operation and components of exhaust gas, such as NOx and COx, were inspected from basic and applicable points of view. This paper illustrates a new test and result of WPD oil applied to marine diesel engines. In recent years, efforts have to be made to develop an advanced technique for recycling waste plastics in order to use scrapped plastics as fuel for diesel engines. It is very important and necessary for us to cope with the increasing calorific value and to satisfy the growing need of environment protection. The experimental fuel oil is obtained by a mixing of diesel oil, WPD, and water.

Laboratory and field trials to determine the modes of action of malathion and diesel oil against Culicoides furens (Poey) (Dipt., Ceratopogonidae)

1971 ◽  
Vol 60 (3) ◽  
pp. 399-407
Author(s):  
John B. Davies
Keyword(s):  
Emerging Adults ◽  
Larval Mortality ◽  
Adult Emergence ◽  
Field Trials ◽  
Diesel Oil ◽  
Modes Of Action ◽  
Marine Diesel ◽  
Pupal Mortality

One field and four laboratory trials were run to determine the reason for the success of 1–8% malathion in diesel oil in controlling Culicoides furens (Poey) in swamp mud in Jamaica. In the laboratory malathion and marine diesel oil (1:4000) was an effective larvicide for up to two days after application to the mud, but diesel oil alone gave only slight mortality even after six days. Judged by the emergence of adults, diesel oil gave 100% pupal mortality for five days and still showed some effect after four weeks; this effect was not improved by the addition of malathion. In the field, counts of emerging adults showed that diesel oil at 106–5 gal/acre gave 97–8% control of C. furens for up to eight weeks after application. It is concluded that, because of the possibility of pupicidal action, insecticides should be assessed on adult emergence rather than larval mortality.

Particulate Emissions From a Two-Stroke Marine Diesel Engine Operated With Heavy Fuel Oil

2002 ◽  
Author(s):  
Tatsuro Tsukamoto ◽  
Kenji Ohe ◽  
Hiroshi Okada
Keyword(s):  
Diesel Engine ◽  
Sulfur Content ◽  
Diesel Oil ◽  
Fuel Oil ◽  
Particulate Emissions ◽  
Marine Diesel Engine ◽  
Heavy Fuel Oil ◽  
Particulate Emission ◽  
Marine Diesel ◽  
Test Engine

In these years, a problem of air pollution in a global scale becomes a matter of great concern. In such social situation, diesel engines are strongly required to reduce the NOx and particulate emission in the exhaust gas. In this paper, measurements of particulate emissions from a low speed two-stroke marine diesel engine were conducted with several kinds of diesel oil and a heavy fuel oil, to know the characteristics of particulate emissions at the present situation. The effects of engine load and sulfur content of the fuel on the particulate emission have been examined. The particulate emission from the test engine was measured by partial-flow dilution tunnel system, and particulate matter collected on the filter was divided into four components, SOF (soluble organic fraction), sulfate, bound water and dry soot, by Soxlet extraction and ion chromatograph. Results show that the particulate emission from the test engine operated with heavy fuel oil is three times as much as the value with diesel oil and that not only sulfate but SOF and dry soot concentration increase with the increase in fuel sulfur content. It is also found that the conversion rate from sulfur in fuel into sulfate in particulate matter is nearly independent of the sulfur content in the fuel and increases with the increase in the engine load.

scholarly journals Characteristics of marine shipping emissions at berth: profiles for PM and VOCs

2018 ◽  
Author(s):  
Qian Xiao ◽  
Mei Li ◽  
Huan Liu ◽  
Fanyuan Deng ◽  
Mingliang Fu ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Diesel Oil ◽  
Atmospheric Pollutants ◽  
Negative Ion ◽  
Average Percentage ◽  
Port Area ◽  
Element Carbon ◽  
Before And After ◽  
Marine Diesel ◽  
Low Sulfur Content

Abstract. Emissions from ships at berth played an important role in the exposure of atmospheric pollutants to high density population in port areas, but these emissions were not understood very well. In this study, volatile organic compounds (VOCs) and particle emissions from 20 container ships at berth were sampled and analyzed during the fuel switch period at Jingtang Port in Hebei Province, China. VOCs and particles were analyzed by gas chromatography-mass spectrometer (GC-MS) and the Single Particle Aerosol Mass Spectrometer (SPAMS), respectively. VOCs analysis showed that alkanes and aromatics, especially benzene, toluene and heavier compounds e.g. n-heptane, n-octane, n-nonane, dominated the total identified species. Secondary organic aerosol yields and ozone forming potential were 0.017 ± 0.007 g SOA/g VOCs and 2.63 ± 0.37 g O3/g VOCs, respectively. Both positive and negative ion mass spectra from individual ship were derived and intensity of specific ions could be quantified. Results showed that element carbon (35.74 %), element carbon-organic carbon mixture (33.95 %) and Na-rich particles (21.12 %) were major classes with a total number ratio of 90.7 %. Particles from ship auxiliary engines were in a size range of 0.2 to 2.5 μm, with a peak occurring at around 0.4 μm. The issue of vanadium as tracer element was discussed that V was not a proper tracer when using low sulfur content diesel oil. The average percentage of sulfate particles from shipping emissions before and after switching to marine diesel oil were 23.82 % and 23.61 % respectively. The total results provide robust evidences in port area air quality assessment and source apportionment.

scholarly journals Nitrogen Oxides and Particulate Matter from Marine Diesel Oil (MDO), Emulsified MDO, and Dimethyl Ether Fuels in Auxiliary Marine Engines

2020 ◽  
Vol 8 (5) ◽  
pp. 322
Author(s):  
Jinkyu Park ◽  
Iksoo Choi ◽  
Jungmo Oh ◽  
Changhee Lee
Keyword(s):  
Particulate Matter ◽  
Nitrogen Oxides ◽  
Dimethyl Ether ◽  
Diesel Oil ◽  
Low Carbon ◽  
Emulsified Fuel ◽  
Marine Vehicles ◽  
Marine Engines ◽  
Marine Diesel ◽  
Chamber Temperature

Exhaust gases from ships and automobiles have a significant impact on people and the environment. As a result, diesel engines used in land and marine vehicles are gradually being restricted, and low-carbon engines are under development. This study considers marine diesel oil (MDO) that is used in ships to meet the emission regulations required by the International Maritime Organization. This investigation explores the method and application technology for the reduction of nitrogen oxides (NOx) and particulate matter using emulsified fuel and mass-produced dimethyl ether (DME) fuel, which are analyzed. When comparing emulsified fuel and DME fuel to MDO, which is a ship oil, NOx are reduced by 20–45% and the particulate matter is reduced by 60–97%. When emulsified fuel containing moisture is used, the combustion chamber temperature is lowered due to the optimal expansion by moisture contained in the fuel. The particulate matter is also reduced. When DME fuel is used, it reduces the particulate matter by more than 97% in comparison with the existing MDO fuel and the emulsified fuel. The conditions are believed to be suitable for combustion and they can be satisfied by supplying oxygen during post-combustion.

Sludge formation in storage of diesel oil with additive

1974 ◽  
Vol 10 (6) ◽  
pp. 473-474
Author(s):  
N. A. Sorokina ◽  
G. S. Shimonaev ◽  
N. I. Marinchenko
Keyword(s):  
Diesel Oil ◽  
Sludge Formation

Design of Monitoring System to Marine Diesel Engine Supply Units Based on Forcecontrol Monitoring Software

2014 ◽  
Vol 556-562 ◽  
pp. 3277-3280
Author(s):  
Jin Chen ◽  
Shi Jie Liu ◽  
Qiao Li ◽  
Xiao Bo Ning
Keyword(s):  
Monitoring System ◽  
System Integration ◽  
Diesel Oil ◽  
Configuration Software ◽  
The Status ◽  
Marine Diesel ◽  
High System ◽  
Rate Sensor ◽  
Upper Computer ◽  
Monitoring Software

In order to understand the working position of the status of marine diesel oil unit in time, reducing the failure rate and improving fuel supply efficiency, Forcecontrol monitoring system based on PLC and Configuration Software is designed. The lower computer S7-200Smart PLC is collected the signal of the system such as temperature, pressure, viscosity and flow rate sensor periodically, by means of analyzing data, outputting a control signal to control the corresponding valves opening or closing as well as various types of motor start or stop status. A Forcecontrol monitoring configuration software is used as upper computer, to execute remote control and monitoring of the system.The system can realize video surveillance of field apparatus via the Forcecontrol configuration software without adding external devices and keeping high system integration, and achieve application innovation of Forcecontrol monitoring configuration software.

PENURUNAN EMISI GAS BUANG MOTOR DIESEL KAPAL DENGAN ELEKTROLISIS AIR LAUT

1970 ◽  
Vol 12 (1) ◽  
pp. 47-52
Author(s):  
I Made Ariana
Keyword(s):  
Diesel Oil ◽  
Marine Diesel

Penelitian ini bertujuan untuk menurunkan emisi gas buang motor diesel kapal secara simultan dengan elektrolisis air laut. Tiga polutan udara, yaitu NOx, SOx, dan partikulat direduksi dengan cara menyemprotkan hasil elektrolisis air laut melalui scrubber ke gas buang motor diesel kapal. Motor diesel merk Dong Feng-tipe R175A dengan daya dan putaran maksimum 6.6 HP dan 2600 rpm digunakan dalam pengujian ini. Motor dioperasikan dengan bahan bakar Marine Diesel Oil pada putaran 2400 rpm dalam berbagai beban. Pembebanan dilakukan dengan generator listrik dan dihubungkan dengan panel lampu-lampu listrik. Pembebanan divariasikan pada daya pemakaian 500, 1500, dan 2500 watt. Variasi juga dilakukan terhadap laju aliran gas buang yang masuk ke dalam scrubber, dengan mengatur katup pipa gas buang. Variasi yang dilakukan adalah 100% dan 75% aliran gas buang ke scrubber. Nilai pH dan emisi gas buang diukur di titik sebelum dan sesudah scrubber. Pengukuran pH dilakukan di dekat anoda dan katoda untuk mengetahui laju pembentukan larutan asam dan basa yang akan disemprotkan ke scrubber. Kandungan NOx, SOx, dan partikulat diukur pada berbagai variasi pembebanan. Elektrolisis air laut menghasilkan larutan asam dan basa hingga harga pH mencapai 5 dan 12. Metode ini dapat menurunkan konsentrasi NOx, SOx, dan PM secara berturut–turut hingga mencapai 76%, 75%,dan 42%.

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