scholarly journals Experimental Study of the Effect of Fuel Catalytic Additive on Specific Fuel Consumption and Exhaust Emissions in Diesel Engine

Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 54
Author(s):  
Marcin Tkaczyk ◽  
Zbigniew J. Sroka ◽  
Konrad Krakowian ◽  
Radoslaw Wlostowski
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Thermal Efficiency ◽  
Combustion Process ◽  
Specific Fuel Consumption ◽  
Fuel Additive ◽  
Engine Operation ◽  
Catalytic Additives ◽  
Positive Effect ◽  
Catalytic Additive

Fuel catalytic additives have been tested for many years. Herein, their influence on the overall efficiency of combustion engines is investigated, and their pro-ecological impact is assessed. The majority of this research concerns diesel engines. Despite many advantages, to this day, the use of catalytic additives has not become widespread. Wishing to clarify the situation, a research group from the Wroclaw University of Science and Technology decided to investigate this matter, starting with verification tests. This article presents the methodology and results of testing an actual diesel engine, and evaluates the effects of the use of a fuel catalytic additive. The focus was on the analysis of fuel consumption and exhaust gas emissions from a Doosan MD196TI engine. The tested additive was a commercial fuel performance catalyst (FAMAX) with up to 5% ferric chloride as an organometallic compound. The proportion of the mixture with the fuel was 1:2000. These studies provide an energy and ecological assessment of propulsion in inland vehicles relative to current exhaust emission standards. The tests were carried out in accordance with the ISO 8178 standard, albeit on a much broader scale regarding engine operation than required by the standard. In this way, a set of previously published data was more than doubled in scope. Detailed conclusions indicate the positive effect of the tested fuel additive. The emission values decreased, on average by 16.7% for particulate matter (PM), 10.1% for carbon monoxide (CO), and 7.9% for total hydrocarbons (THC). Unfortunately, the amount of nitrogen oxides (NOx) increased by 1.2%. The average difference in specific fuel consumption (BSFC) between the fuel with additive and pure diesel fuel was 0.5%, i.e. below the level of measurement error. The authors formulated the following scientific relationship between the thermal efficiency of the engine and the operation of the catalyst: the effect of the catalyst on the combustion process decreases with the increase of the thermodynamic efficiency of the engine. This conclusion indicates that despite the proven positive effect of catalysts on the combustion process, they can only be used in markets where engines with low thermal efficiency are used, i.e., older generation engines.

The Comparative Trail Research on the Performance of a Diesel Engine Fuelled with Diesel Fuel and Biodiesel/Diesel Blended Fuel

2011 ◽  
Vol 142 ◽  
pp. 103-106
Author(s):  
Wen Ming Cheng ◽  
Hui Xie ◽  
Gang Li
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Thermal Efficiency ◽  
Specific Fuel Consumption ◽  
Brake Specific Fuel Consumption ◽  
Brake Thermal Efficiency ◽  
Series Of Experiments ◽  
Blended Fuel ◽  
Load Conditions

This paper discusses the brake specific fuel consumption and brake thermal efficiency of a diesel engine using cottonseed biodiesel blended with diesel fuel. A series of experiments were conducted for the various blends under varying load conditions at a speed of 1500 rpm and 2500 rpm and the results were compared with the neat diesel. From the results, it is found that the brake specific fuel consumption of cottonseed biodiesel is slightly higher than that of diesel fuel at different engine loads and speeds, with this increase being higher the higher the percentage of the biodiesel in the blend. And the brake thermal efficiency of cottonseed biodiesel is nearly similar to that of diesel fuel at different engine loads and speeds. From the investigation, it is concluded that cottonseed biodiesl can be directly used in diesel engines without any modifications, at least in small blending ratios.

scholarly journals An Assessment on Performance Characteristics of Diesel Engine Using Lemongrass-Diesel Oil Fuel Blends

2021 ◽  
Author(s):  
Naveen Rana ◽  
Harikrishna Nagwan ◽  
Kannan Manickam
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Thermal Efficiency ◽  
Specific Fuel Consumption ◽  
Performance Characteristics ◽  
Emission Characteristics ◽  
Brake Specific Fuel Consumption ◽  
Brake Thermal Efficiency ◽  
Fuel Blends

Abstract Indeed, the development of alternative fuels for use in internal combustion engines has become an essential requirement to meet the energy demand and to deal with the different problems related to fuel. The research in this domain leads to the identification of adverse fuel properties and for their solution standard limits are being defined. This paper outlines an investigation of performance and combustion characteristics of a 4-stroke diesel engine using different cymbopogon (lemongrass) - diesel fuel blends. 10% to 40% cymbopogon is mixed with diesel fuel and tested for performance characteristics like brake specific fuel consumption and brake thermal efficiency. To obtain emission characteristics smoke density in the terms of HSU has been measured. In result, it has observed that there is an increase of 5% in brake thermal efficiency and 16.33% decrease in brake specific fuel consumption. Regarding emission characteristics, a 12.9% decrease in smoke emission has been found.

scholarly journals Performance and Fuel Consumption of Diesel Engine Fueled by Diesel Fuel and Waste Plastic Oil Blends: An Experimental Investigation

2020 ◽  
Vol 4 (1) ◽  
pp. 20-26
Author(s):  
Sunaryo Sunaryo ◽  
Priyo Adi Sesotyo ◽  
Eqwar Saputra ◽  
Agus Pulung Sasmito
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Thermal Efficiency ◽  
Performance Test ◽  
Specific Fuel Consumption ◽  
Pyrolysis Oil ◽  
Promising Alternative ◽  
Waste Plastic ◽  
Waste Plastic Oil

This study analyzes the performance of the diesel engine in terms of power, torque, specific fuel consumption, and thermal efficiency using diesel and pyrolysis oil. The waste plastic oil (WPO) used in this research was produced through a pyrolysis process using raw materials from Low-density Polyethylene (LDPE) mixed with diesel fuel in volume ratios WPO10, WPO20, WPO30, WPO40, and WPO50. In addition, a performance test was carried out on the single-cylinder diesel engine test bench. The results showed that performing the diesel engine with the addition of WPO increased the average power and torque by 5% and 3%, thereby producing a higher heating value. Furthermore, the concentration of WPO also reduces the level of specific fuel consumption to be more efficient, with a decrease in thermal efficiency. In conclusion, plastic waste pyrolysis oil is a promising alternative fuel applicable to a diesel engine.

scholarly journals PENGARUH TEKANAN POMPA BAHAN BAKAR TEKANAN TINGGI TERHADAP KINERJA MESIN

2018 ◽  
Vol 3 (2) ◽  
pp. 98-105
Author(s):  
Didit Sumardiyanto ◽  
Sri Endah Susilowati
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Thermal Efficiency ◽  
Fuel Injection ◽  
Engine Performance ◽  
Injection Pressure ◽  
Specific Fuel Consumption ◽  
Injection Pump ◽  
Pump Pressure ◽  
Indicator Power

AbstrakPenelitian ini dilakukan untuk mengetahui  pengaruh  pompa injeksi bahan bakar tekanan tinggi terhadap kinerja sebuah mesin pada mesin penggerak utama MV. ALAM JAYA II yang menggunakan mesin diesel YANMAR type M22-EN. Berdasarkan data-data yang diperoleh dilapangan, setelah dilakukan pembahasan bahwa tekanan pompa injeksi berpengaruh pada kinerja mesin diesel. Untuk tekanan pompa injeksi sebesar 820 kgf/cm2, kinerja yang dihasilkan mesin adalah : Daya Indikator 1204 kgf/cm2, Daya Efektif 1016 kgf/cm2, Efisiensi Thermal Efektif 32,0% dan konsumsi bahan bakar spesifik sebesar 192 g/hp.h. Sedangkan setelah dilakukan perbaikan pompa injeksi, tekanan pompa menjadi 1120 kgf/cm2, kinerja yang dihasilkan oleh mesin adalah : Daya efektif 1399 hp, Daya Efektif 1195 hp, Efisiensi Thermal Efektif : 37.32%, dan Konsumsi Bahan Bakar Spesifik sebesar 165.7 g/hp.h Dengan adanya perbaikan pompa injeksi sehingga dapat menaikkan tekanan injeksi dari 880 kgf/cm2 menjadi 1120 kgf/cm2, maka kinerja mesin dapat ditingkatkan Kata kunci: mesin diesel,pompa injeksi, kinerja mesin AbstractThis research was conducted to determine the effect of high pressure fuel injection pump on the performance of a machine on the MV main drive engine. ALAM JAYA II which uses the YANMAR type M22-EN diesel engine. Based on the data obtained in the field, after discussion that the injection pump pressure affects the performance of the diesel engine. For injection pump pressure of 820 kgf /cm2, the engine performance is: Indicator Power 1204 kgf /cm2, Effective Power of 1016 kgf /cm2, Effective Thermal Efficiency of 32.0% and specific fuel consumption of 192 g / hp.h. Whereas after the injection pump repairs, the pump pressure becomes 1120 kgf / cm2, the performance produced by the engine is: Effective 1399 hp, Effective 1195 hp, Effective Thermal Efficiency: 37.32%, and Specific Fuel Consumption of 165.7 g / hp. H With the improvement of the injection pump so that it can increase the injection pressure from 880 kgf / cm2 to 1120 kgf /cm2, the engine performance can be improvedKeywords: diesel engine, injection pump, engine performance

scholarly journals An Experimental Study on the Performance Characteristics of a Diesel Engine Fueled with ULSD-Biodiesel Blends

2020 ◽  
Vol 10 (2) ◽  
pp. 183-190
Author(s):  
Viet Dung Tran ◽  
Anh Tuan Le ◽  
Anh Tuan Hoang
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Thermal Efficiency ◽  
Cooling System ◽  
Specific Fuel Consumption ◽  
Exhaust Gas ◽  
Gas Temperature ◽  
Brake Thermal Efficiency ◽  
Exhaust Gas Temperature ◽  
Low Sulfur

As a rule, the highest permissible sulfur content in the marine fuel must drop below 0.5% from 1 January 2020 for global fleets. As such, ships operating in emission control areas must use low sulfur or non-sulfur fuel to limit sulfur emissions as a source of acid rain. However, that fact has revealed two challenges for the operating fleet: the very high cost of ultra-low sulfur diesel (ULSD) and the installation of the fuel conversion system and the ULSD cooling system. Therefore, a solution that blends ULSD and biodiesel (BO) into a homogeneous fuel with properties equivalent to that of mineral fuels is considered to be significantly effective. In the current work, an advanced ultrasonic energy blending technology has been applied to assist in the production of homogeneous ULSD-BO blends (ULSD, B10, B20, B30, and B50 with blends of coconut oil methyl ester with ULSD of 10%, 20%, 30% and 50% by volume) which is supplied to a small marine diesel engine on a dynamo test bench to evaluate the power and torque characteristics, also to consider the effect of BO fuel on specific fuel consumption exhaust gas temperature and brake thermal efficiency. The use of the ultrasonic mixing system has yielded impressive results for the homogeneous blend of ULSD and BO, which has contributed to improved combustion quality and thermal efficiency. The results have shown that the power, torque, and the exhaust gas temperature, decrease by approximately 9%, 2%, and 4% respectively with regarding the increase of the blended biodiesel rate while the specific fuel consumption and brake thermal efficiency tends to increase of around 6% and 11% with those blending ratios.

scholarly journals Analysis of influence of using catalyst and polar additives on engine performance and exhaust emission

2019 ◽  
Vol 177 (2) ◽  
pp. 3-6
Author(s):  
Marcin TKACZYK ◽  
Maria SKRĘTOWICZ ◽  
Konrad KRAKOWIAN
Keyword(s):  
Carbon Monoxide ◽  
Diesel Engine ◽  
Nitrogen Oxides ◽  
Fuel Consumption ◽  
Engine Performance ◽  
Lubricating Oil ◽  
Exhaust Emission ◽  
Performance And Emission ◽  
Positive Effect ◽  
Catalytic Additive

In the paper researches of influence of using catalyst and polar additives on engine performance and emission of exhaust were carried out. The tests were made on diesel engine DuraTorq-TDDi/TDCi 16v with a capacity of 1998cm3 produced by Ford company. Two additives were investigated: FMAX – catalytic additive to fuel and HDOS – polar additive to lubricating oil in different proportions. The results indicated that using tested additives has a positive effect on exhaust composition (lower concentrations of nitrogen oxides, soot and carbon monoxide) and also decreased fuel consumption.

scholarly journals The Performance of A Diesel Engine Fueled With Diesel Oil, Biodiesel and Preheated Coconut Oil

2017 ◽  
Vol 6 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Tuan Anh Hoang ◽  
Vang Van Le
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Vegetable Oils ◽  
Thermal Efficiency ◽  
Alternative Fuels ◽  
Engine Performance ◽  
Coconut Oil ◽  
Diesel Oil ◽  
Specific Fuel Consumption ◽  
Jatropha Oil

Fossil fuel crisis and depletion, environmental pollution and ever-increase in vehicle and transportation means have renewed the scientist’s interest in the world in order to look for potential alternative fuels, which are attractive such as biodiesel, bioethanol, DME and vegetable oils. Inedible vegetable oils such as coconut oil, Jatropha oil, linseed oil or animal fat are full of potential for using directly or manufacturing biodiesel. This work is carried out in order to study the four stroke diesel engine D240 performance characteristics fueled with preheated pure coconut oil (PCO), Jatropha oil methyl ester (JOME) and compare with diesel oil (DO). The test diesel engine performance such as power (Ne), torque (Me), specific fuel consumption (ge) and thermal efficiency (ηe) is determined, calculated and evaluated while using JOME, preheated PCO and compared to DO. The results show that, power (Ne), torque (Me) and thermal efficiency (ηe) while engine is fueled with JOME and PCO are lower, otherwise specific fuel consumption (ge) is higher than those of diesel fuel, the test engine performance are gained the best for JOME and PCO100.Article History: Received Dec 9, 2016; Received in revised form January 28, 2017; Accepted February 4, 2017; Available onlineHow to Cite This Article: Hoang, T.A and Le,V. V. (2017). The Performance of A Diesel Engine Fueled With Diesel Oil, Biodiesel and Preheated Coconut Oil. International Journal of Renewable Energy Development, 6(1), 1-7.http://dx.doi.org/10.14710/ijred.6.1.1-7

scholarly journals Effects of Different Biodiesel-Diesel Blend Fuel on Combustion and Emission Characteristics of a Diesel Engine

Processes ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 1984
Author(s):  
Yanhui Zhang ◽  
Yunhao Zhong ◽  
Jie Wang ◽  
Dongli Tan ◽  
Zhiqing Zhang ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Combustion Process ◽  
Kinetic Mechanism ◽  
Alternative Fuel ◽  
Specific Fuel Consumption ◽  
Biodiesel Fuel ◽  
Emission Characteristics ◽  
Brake Specific Fuel Consumption ◽  
Blend Fuel

In this paper, biodiesel was used as an alternative fuel to investigate the combustion and emission characteristics of a four-stroke diesel engine, in terms of cylinder pressure, heat release rate, cylinder temperature, brake thermal efficiency, brake specific fuel consumption, nitrogen oxide, soot, carbon monoxide, and hydrocarbon. Firstly, a diesel engine cylinder model was developed by AVL-Fire software coupled with CHEMKIN code to simulate the injection and combustion of biodiesel with a kinetic mechanism with 106 species and 263 reactions. Then, the simulation model was validated by experimental results under 100% and 50% load conditions and used to simulate the combustion process of a diesel engine fueled with pure diesel, biodiesel, and biodiesel–diesel blends with 10%, 20%, 30% biodiesel by volume, respectively. The results showed that the brake specific fuel consumption increased with the increase of mixed biodiesel ratio. The brake specific fuel consumptions of B10, B20 and B30 increased by 1.1%, 2.3% and 3.3%, respectively, compared with that of D100. The combustion and emission characteristics of the diesel engine are improved. Therefore, biodiesel can be used as an alternative fuel for the diesel engine. The diesel–biodiesel fuel can improve the combustion and emission characteristics of the diesel engine.

Effect of Turbocharger Cut Out on Two-Stroke Marine Diesel Engine Performance and NOx Emissions at Part Load Operation

2014 ◽  
Author(s):  
Dimitrios T. Hountalas ◽  
Nikolaos F. Sakellaridis ◽  
Efthimios Pariotis ◽  
Antonis K. Antonopoulos ◽  
Leonidas Zissimatos ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Negative Impact ◽  
Specific Fuel Consumption ◽  
Engine Operation ◽  
Slow Steaming ◽  
Low Load ◽  
Marine Diesel ◽  
Promising Solution

The diesel engine is widely used for marine vessel propulsion due to its relatively high efficiency compared to existing alternative propulsion systems. The majority of these engines are slow speed two stroke ones. Despite the improvement of their efficiency there now exists a demand for drastic reduction of daily fuel oil consumption as a result of the global financial situation and continuously increasing fuel prices. Towards this effort, slow steaming is a promising solution for the drastic reduction of daily and specific fuel consumption when expressed in tn/mile. This requires engine operation in the low load (low speed) range where these engines are not designed to operate for long term. The main problem related to slow-steaming, is the lack of air which has a negative impact on the engine and its subsystems. A promising solution to the problem is turbocharger (T/C) cut-out at low load when more than one T/C exists. In the present work a combined computational and experimental investigation is conducted to evaluate the operation potential of a large two stroke marine diesel engine equipped with two T/Cs using T/C cut-out, for which the specific technology presents various challenges. This is achieved using an in-house engine simulation model and measurements with and without T/C cut-out. From the results it is revealed that using this technique the scavenging air and peak firing pressure increase while the specific fuel consumption decreases. In this way, some major problems related with the long term operation of the engine under low load conditions, i.e. accumulation of carbon deposits on the exhaust gas side and continuous operation of the auxiliary air blowers, are surpassed. Moreover, a theoretical investigation is conducted considering fuel injection retard to minimize the peak firing pressure penalty while taking care to limit the corresponding negative impact on specific fuel consumption. For NOx emissions the effect of T/C cut-out is also considered using tail pipe emission data measured during the official shop tests. From the analysis conducted it has been revealed that the technique of turbocharger cut–out (one of two) is technically feasible and could offer certain advantages when slow-steaming is implemented. Moreover, comparing the calculated with the measured results, it has been revealed that the simulation model successfully estimates engine operation with and without T/C cut-out, being a valuable tool for the engineers to investigate combustion and pollutant formation mechanisms under various engine configurations.

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