Effect of Varying the Retainer Angle on the Performance of Oil Burner

2015 ◽  
Vol 72 (4) ◽  
Author(s):  
Arizal, M. A. A. ◽  
Jaafar, M. N. M.

A research has been done to observe the effect of varying the retainer angle on the performance of oil burner in terms of exhaust gas emissions and temperatures. Retainer was a flame stabilizer used to stabilize the flame, improve mixing between air and fuel and affect the formation of emissions such as carbon monoxide (CO), carbon dioxide (CO2), oxides of nitrogen (NOX), and sulfur dioxide (SO2). These emissions can cause harm to the world ecosystem. One of the methods to reduce emissions was by varying the retainer's blade angle to certain angle that complete the combustion with high efficiencies and less emissions. In this research, an oil burner with four different retainer angles has been investigated using a combustor of one meter length. Tests were conducted using diesel as feedstock. Four different retainer angles used are 15°, 30° (baseline), 45°, and 60° with swirl number 0.2016, 0.4344, 0.7524, and 1.3032. From the experiment, data shown that swirling flow affect the formation of recirculation zone thus provides the aerodynamics blockage to stabilize the flame and emissions reduced due to varying the retainer angles and the best retainer angle was achieved by consider the exhaust gas emission reduction.

2021 ◽  
Vol 926 (1) ◽  
pp. 012038
Author(s):  
E M Siregar

Abstract The operation of a diesel power plant not only improves reliability but also has an impact on the environment in the Belinyu sub-district. The purpose of this PLTD development is to meet the increasing electricity demand. Environmental aspects in the construction of this PLTD include exhaust gas emission factors which are pivotal to notice. Meanwhile, this low emission power plant located next to the diesel power plant has not yet had an optimal operating pattern because there is no energy storage system. By optimizing the design of the solar power plant and optimization the operating pattern of the diesel power plant, it has the potential to reduce the operating hours of the diesel power plant engine as well as the potential to reduce exhaust gas emissions in the amount of 0.0060264 mn tons CO2/year.


2012 ◽  
Author(s):  
Mohammad Nazri Mohd Jaafar ◽  
Muhamad Shukri Abdul Mookmin ◽  
Ismail Samat

Kertas kerja ini mempersembahkan pengaruh mengubah sudut bilah pemusar udara aliran jejarian yang kecil dalam mengurangkan emisi seperti oksida nitrogen (NOx) dan karbon monoksida (CO). Dalam kajian ini, satu sistem pembakar berbahan api cecair menggunakan empat pemusar udara aliran jejarian yang berlainan sudut bilah diuji di dalam kebuk pembakar berdiameter 163 mm dan panjang 280 mm. Ujian dijalankan menggunakan kerosin sebagai bahan api. Pemusar udara aliran jejarian dengan bilah terlengkung berdiameter keluaran 40 mm dipasang pada satah masukan pembakar bagi menjana aliran berpusar. Bahan api dipancitkan pada plat belakang keluaran pemusar menggunakan pemancit bahan api pusat dengan dua nozel bahan api menghala keluar secara paksi. Sudut pemusar udara dan nisbah setara diubah–ubah. Ujian dilaksanakan menggunakan empat pemusar udara yang berlainan sudut, iaitu masing–masing 30°, 40°, 50° dan 60°. Pengurangan NOx melebihi 50 peratus dicapai untuk sudut bilah 60° berbanding pada sudut bilah 30°. Emisi CO juga dikurangkan sebanyak 72 peratus pada sudut bilah 60° berbanding pada sudut bilah 30°. Kata kunci: Aliran berpusar; pembakar industri; emisi NOx; emisi CO; bilah terlengkung This paper presents the effect of varying the blade angle of a small radial air swirler on reducing emissions such as oxides of nitrogen (NOx) and carbon monoxide (CO). In this research a liquid fuel burner system with four different radial air swirler blade angles has been investigated using 163 mm inside diameter combustor of 280 mm length. Tests were conducted using kerosene as fuel. A radial flow air swirler with curved blades having 40 mm outlet diameter was inserted at the inlet plane of the combustor to produce swirling flow. Fuel was injected at the back plate of the swirler outlet using central fuel injector with two fuel nozzles pointing axially outwards. The swirler blade angles and equivalence ratios were varied. Tests were carried out using four different air swirlers having 30°, 40°, 50° and 60° blade angles, respectively. A NOx reduction of more than 50 percent was achieved for blade angle of 60° compared to the 30° blade angle. CO emissions were also reduced by 72 percent for 60° blade angle compared 30° blade angle. Key words: Swirling flow; industrial burner; NOx emissions; CO emissions; curved blade


2021 ◽  
Vol 9 (5) ◽  
pp. 477
Author(s):  
Tae-Ho Lee ◽  
Sang-Hyun Lee ◽  
Jee-Keun Lee

In this study, emulsified fuels were prepared and produced by blending 0%, 5%, 15%, and 25% water with Bunker C oil to reduce the amount of air pollution emitted by ships and replace oil resources, and they were applied to an actual marine boiler to analyze the exhaust gas. The fuel effects on the improvement in exhaust gas emissions were as follows: The oxygen (O2) concentration increased by up to 4.2%, and that of carbon dioxide decreased by approximately 2.1%. Under the standard O2 concentration of 4%, the concentration of nitrogen oxides decreased by up to 31.41%, and that of sulfur oxides decreased by up to 37.47%. However, the exhaust gas temperature decreased by approximately 14.3%, and the combustion efficiency decreased by approximately 2.6%. Comparing the emission improvements, the combustion performance of the emulsified fuels was close to that of the conventional Bunker C fuel. These results indicate that the application of water-emulsified fuels to a marine boiler can reduce the amounts of certain air pollutants.


2020 ◽  
Vol 8 (5) ◽  
pp. 2933-2937

Biodiesel is one of the alternatives which are being widely studied and production of biodiesel is limited by crop land displacement, the Trial examinations are carried on a four stroke Diesel Engine (DE) to inspect the solidness. Exhaust gas recirculation (EGR) is used for control the emission reduction such as NOx, HC & CO. The pongamia oil blended with B20, B40 and B50 of them biodiesel. The biodiesel oils performance are assessed. The performance parameters such as Specific Fuel Consumption (SFC) and Brake Thermal Efficiency (BTE) are calculated. The exhaust emissions such as unburned Hydro-Carbon (HC), oxides of nitrogen (NOx), carbon monoxide (CO), carbon dioxide (co2) and combustion and smoke parameters is discussed in this paper


Author(s):  
Eko Winarto ◽  
Husin Bugis ◽  
C. Sudibyo

<p>The purpose of this research: (1) Investigated the motorcycle exhaust emissions Suzuki Shogun FL 125 SP in 2007 used premium,pertamax,and pertamax plus. (2) Investigated the motorcycle exhaust emissions Suzuki Shogun FL 125 SP in 2007 used variation of compression ratio. (3) Investigated the motorcycle exhaust emissions Suzuki Shogun FL 125 SP in 2007 used interaction premium,pertamax, pertamax plus, and variation of compression ratio.<br />This research was used experimental methods.The research was measurement at the Laboratory of Automotive Mechanical Engineering Education Program, JPTK, FKIP, UNS Surakarta to the address on Ahmad Yani road no. 200 Kartasura. Test of CO and HC exhaust gas emissions was used a gas analyzer type STARGAS 898. The population in this research was a motorcycle Suzuki Shogun FL 125 SP in 2007 and the sample in this research was a motorcycle Suzuki Shogun FL 125 SP in 2007 with engine number: F4A1ID113687.<br />Based on this researchcan be concluded: (1) The measurement premium fuel producedthe lowest emission in CO 3.884% by 9.1:1 compression ratio and the the lowestexhaust gas emission levels in 168 ppmby 9.1:1 compression ratio. (2) The measurement pertamax fuel produced the lowest exhaust gas emission levels in CO 3.237% by 9.5:1 compression ratio and the the lowest exhaust gas emission levels in 210 ppm by 9.5:1 compression ratio(3) The measurement pertamax plus fuel produces the lowest exhaust gas emission levels in CO 2.615% by 10.2:1 compression ratio and the the lowest exhaust gas emission levels in 237 ppm by 9.5:1 compression ratio</p>


2010 ◽  
Author(s):  
Hans Otto Holmegaard Kristensen

A generic computer model for systematic investigations of container ship designs is described in this paper. The primary statistical data on container ships used for the model development are also presented. The model can be used to calculate exhaust gas emissions from container ships, including emissions of carbon dioxide (CO2). A calculation procedure to estimate the newly designated Energy Efficiency Design Index (EEDI), which is under development at the International Maritime Organization (IMO), is included in the model. Different ship design parameters have been varied to see the influence of these parameters on the EEDI. It is found possible to reduce EEDI by roughly 20 % without reducing ship speed, but only by changing some of the design parameters, such as reducing the sea margin by using a derated main engine, increasing the length of the ship by 5 %, and reducing steel weight by 3 % via steel weight optimization.


2021 ◽  
Vol 93 (6s) ◽  
pp. 186-195
Author(s):  
Bruna Bacalja ◽  
◽  
Maja Krčum ◽  
Tomislav Peša ◽  
Marko Zubčić ◽  
...  

This paper presents the measurement process of the emissions from marine diesel engines. The emission measurement was carried out by the certified TESTO 350 Maritime exhaust gas analyzer on the Juraj Dalmatinac ferry Caterpillar C32 engines. The gas analyzer records the concentrations of nitrogen oxides (NOx), carbon monoxide (CO), carbon dioxide (CO2), oxygen (O2) and sulfur dioxide (SO2). TESTO 350 emission sampling probe was set at the end of the exhaust pipe. A combustion emission measurement was performed during a Split – Supetar (Brač) trip and backwards with the total duration of 110 min. The emissions are estimated for two trip phases: “maneuvering” and “at sea”.


Author(s):  
Ming Zheng ◽  
David K. Irick ◽  
Jeffrey Hodgson

For diesel engines (CIDI) the excessive use of exhaust gas recirculation (EGR) can reduce in-cylinder oxides of nitrogen (NOx) generation dramatically, but engine operation can also approach zones with high instabilities, usually accompanied with high cycle-to-cycle variations and deteriorated emissions of total hydrocarbon (THC), carbon monoxide (CO), and soot. A new approach has been proposed and tested to eliminate the influences of recycled combustibles on such instabilities, by applying an oxidation catalyst in the high-pressure EGR loop of a turbocharged diesel engine. The testing was directed to identifying the thresholds of stable operation at high rates of EGR without causing cycle-to-cycle variations associated with untreated recycled combustibles. The elimination of recycled combustibles using the oxidation catalyst showed significant influences on stabilizing the cyclic variations, so that the EGR applicable limits are effectively extended. The attainability of low NOx emissions with the catalytically oxidized EGR is also evaluated.


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