Characteristic Comparison of Waste Rubber Derived Fuel and Fossil Fuel and Application Test in Engine

2014 ◽  
Vol 529 ◽  
pp. 383-386
Author(s):  
Ming Wei Shao ◽  
Ying Jeh Huang
Keyword(s):  
Fossil Fuel ◽  
Diesel Oil ◽  
Combustion Efficiency ◽  
Fuel Oil ◽  
Combustion Characteristic ◽  
Oil Consumption ◽  
Environment Friendly ◽  
Waste Gas ◽  
Waste Rubber ◽  
And Control

This study discussed characteristics and alkyl composition of waste rubber derived fuel oil, mix ratio of the derived fuel oil to fossil fuel on regulation and control performance of oil engine, waste gas emission and fuel combustion characteristic, and feasibility and suitability of regulation technologies when the derived fuel oil is applied to fuel engine. The findings show that cetane index increases after petroleum diesel is mixed the environment-friendly fuel oil. This can improve combustion efficiency of oil products in diesel engine, as well as reduce sulphur content in the oil and sulfur oxide emission of diesel oil, thus effectively eliminating impurities and reducing ash content after refining the blended environment-friendly fuel oil. Meanwhile, colloid and volatile gas can be eliminated effectively. By blending with petroleum diesel oil, the mixed fuel has the similar characteristics with that of traditional blended fossil oil. The combustion efficiency of mixed environment-friendly oil is improved, thus reducing oil consumption.

A Study on Feasibility Test of Application of Waste Rubber-Derived Renewable Fuel Improved Biodiesel in Diesel Engine

2014 ◽  
Vol 529 ◽  
pp. 387-390
Author(s):  
Ming Wei Shao ◽  
Ying Jeh Huang
Keyword(s):  
Diesel Engine ◽  
Fossil Fuel ◽  
Environmentally Friendly ◽  
Combustion Efficiency ◽  
Fuel Oil ◽  
Renewable Fuel ◽  
Waste Rubber ◽  
Reduce Energy Consumption ◽  
Feasibility Test ◽  
Commercial Oil

This study applied the environmentally-friendly fuel oil blended with biodiesel to combustion in diesel engines to solve waste tire contamination, save fuel oil and reduce energy consumption, and thus fossil fuel replacing oil product is feasible. Also, blended environmentally-friendly fuel oil is proposed to improve application of biodiesel in diesel engine. Relevant feasibility tests of diesel engine were conducted to ensure the blended environmentally-friendly diesel can be used for combustion in various commercial oil engines. This solution can control combustion efficacy, ensure cleanness and stability of emissions, maintain the best combustion efficiency, reduce pollution emission, fulfill energy efficiency and emission reduction carbon, and prevent pollution of existing wastes.

scholarly journals Improvement of Swirl Chamber Structure of Swirl-Chamber Diesel Engine Based on Flow Field Characteristics

2014 ◽  
Vol 6 ◽  
pp. 637813 ◽  
Author(s):  
Wenhua Yuan ◽  
Yi Ma ◽  
Jun Fu ◽  
Wei Chen
Keyword(s):  
Diesel Engine ◽  
Flow Field ◽  
Diesel Oil ◽  
Field Vector ◽  
Fuel Oil ◽  
Combustion Characteristic ◽  
Flat Bottom ◽  
Design And Optimization ◽  
Swirl Chamber ◽  
Dead Centre

In order to improve combustion characteristic of swirl chamber diesel engine, a simulation model about a traditional cylindrical flat-bottom swirl chamber turbulent combustion diesel engine was established within the timeframe of the piston motion from the bottom dead centre (BDC) to the top dead centre (TDC) with the fluent dynamic mesh technique and flow field vector of gas in swirl chamber and cylinder; the pressure variation and temperature variation were obtained and a new type of swirl chamber structure was proposed. The results reveal that the piston will move from BDC; air in the cylinder is compressed into the swirl chamber by the piston to develop a swirl inside the chamber, with the ongoing of compression; the pressure and temperature are also rising gradually. Under this condition, the demand of diesel oil mixing and combusting will be better satisfied. Moreover, the new structure will no longer forma small fluid retention zone at the lower end outside the chamber and will be more beneficial to the mixing of fuel oil and air, which has presented a new idea and theoretical foundation for the design and optimization of swirl chamber structure and is thus of good significance of guiding in this regard.

The Research and Application of Smoke-Free Low-Noise Environment-Friendly Ground Flare

2011 ◽  
Vol 317-319 ◽  
pp. 2404-2408 ◽  
Author(s):  
Ji Xian Dong ◽  
Jing Gu
Keyword(s):  
Combustion Efficiency ◽  
Low Noise ◽  
Control Mode ◽  
Environment Friendly ◽  
Gas Treatment ◽  
Noise Environment ◽  
Petrochemical Waste ◽  
Major Direction ◽  
Waste Gas Treatment ◽  
And Control

This paper offers many advantages of smoke-free low-noise environment-friendly ground flare in comparison to traditional elevated flare in performance and technology, briefly summarizes the research status and development trends of ground flare at home and abroad. This paper makes a more detailed analysis and description focusing on the application of smoke-free low-noise environment-friendly ground flare in petrochemical industry. At the premise of safety, reliablity and environmental protection, how to study the new ground flare, in aspects such as dealing capability, combustion efficiency and control mode of flare burner, is the major direction of petrochemical waste gas treatment device in future development.

scholarly journals Effect of Nozzle Angle to Combustion Characteristic in Biodiesel Burner

2015 ◽  
Vol 773-774 ◽  
pp. 585-589
Author(s):  
Latip Lambosi ◽  
Amir Khalid ◽  
Bukhari Manshoor ◽  
Shahrin Hisyam ◽  
Lo Kok Hao
Keyword(s):  
Fossil Fuel ◽  
Combustion Efficiency ◽  
Spray Angle ◽  
Combustion Characteristic ◽  
Emission Characteristic ◽  
Mixture Formation ◽  
Strong Reduction ◽  
Spray Penetration ◽  
Hydro Carbon ◽  
Flame Development

The increasing effort on the environmental impacts of fossil fuel based power generation has led to increased research with the aim of reducing emissions and improving combustion efficiency by turning to alternative fuel such as biodiesel. But the hazardous emission caused by biodiesel is still a problem that need to tackle. One of way to achieve this is by choosing the correct nozzle characteristic. In the current study, the effect of nozzle angle on mixture formation and combustion characteristic are investigate using air-assisted fuel atomizing biodiesel burner. The nozzle angle that was used are θ = 450 and 500. The results show with nozzle 450 produce lower spray penetration, but higher spray angle and spray area compare to nozzle 500. The result are similar on flame development. For the emission characteristic, the Carbon Monoxide (CO) and Hydro Carbon (HC) emission had a strong reduction by using nozzle with 450 angle compare to 500 angle.

The Problem of Energy

2014 ◽  
Vol 31 (5) ◽  
pp. 3-20 ◽  
Author(s):  
John Urry
Keyword(s):  
Social Theory ◽  
21St Century ◽  
Fossil Fuel ◽  
Energy Systems ◽  
Social Thought ◽  
Human Intervention ◽  
The West ◽  
The Past ◽  
And Control ◽  
Global Growth

Energy forms and their extensive scale are remarkably significant for the ways that societies are organized. This article shows the importance of how societies are ‘energized’ and especially the global growth of ‘fossil fuel societies’. Much social thought remains oblivious to the energy revolution realized over the past two to three centuries which set the ‘West’ onto a distinct trajectory. Energy is troubling for social thought because different energy systems with their ‘lock-ins’ are not subject to simple human intervention and control. Analyses are provided here of different fossil fuel societies, of coal and oil, with the latter enabling the liquid, mobilized 20th century. Consideration is paid to the possibilities of reducing fossil fuel dependence but it is shown how unlikely such a ‘powering down’ will be. The author demonstrates how energy is a massive problem for social theory and for 21st-century societies. Developing post-carbon theory and especially practice is far away but is especially urgent.

scholarly journals Numerical and Experimental Investigation of Combustion and Knock in a Dual Fuel Gas/Diesel Compression Ignition Engine

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
A. Gharehghani ◽  
S. M. Mirsalim ◽  
S. A. Jazayeri
Keyword(s):  
Natural Gas ◽  
Diesel Oil ◽  
Combustion Characteristic ◽  
Simultaneous Increase ◽  
Dual Fuel ◽  
Compression Ignition ◽  
Swirl Ratio ◽  
Characteristic Analysis ◽  
Mode Of Operation ◽  
Intake Pressure

Conventional compression ignition engines can easily be converted to a dual fuel mode of operation using natural gas as main fuel and diesel oil injection as pilot to initiate the combustion. At the same time, it is possible to increase the output power by increasing the diesel oil percentage. A detailed performance and combustion characteristic analysis of a heavy duty diesel engine has been studied in dual fuel mode of operation where natural gas is used as the main fuel and diesel oil as pilot. The influence of intake pressure and temperature on knock occurrence and the effects of initial swirl ratio on heat release rate, temperature-pressure and emission levels have been investigated in this study. It is shown that an increase in the initial swirl ratio lengthens the delay period for auto-ignition and extends the combustion period while it reduces NOx. There is an optimum value of the initial swirl ratio for a certain mixture intake temperature and pressure conditions that can achieve high thermal efficiency and low NOxemissions while decreases the tendency to knock. Simultaneous increase of intake pressure and initial swirl ratio could be the solution to power loss and knock in dual fuel engine.

Evaluation of Ship Performance Using Operation Records

2018 ◽  
Author(s):  
Kenichi Fukuda ◽  
Yoshihisa Okada ◽  
Akinori Okazaki ◽  
Hiroyuki Adachi ◽  
Yuichiro Hisamuara ◽  
...  
Keyword(s):  
Big Data ◽  
Fuel Oil ◽  
Time Dependent ◽  
Oil Consumption ◽  
Sea Trial ◽  
Before And After ◽  
Report Data ◽  
Unique Approach ◽  
Performance Conditions ◽  
Ship Performance

Recently, the big data can be employed as the economical ship operating or evaluation of ship performance conditions. However, such data cannot be easily obtained and analyzed for every ship. In this case, for example, an evaluation of ship performance during operation is usually dependent on ship owner’s experience. The time-dependent ship performance is an essential topic for ship owners because if they realize their current ship performance, they can implement something such as hull or propeller cleaning for their economical operation. This study is focused on the usage of noon report data rather than the big data due to their obtainability. Usually, such data are considered as references because different ship operational condition and environmental condition obscure current ship performance. However, our unique approach, which is used integrally the noon report data such as BHP, propeller revolution and fuel oil consumption, ship sea trial data and propeller performance, can be evaluated ship performance during ship in service. The analyzed output data can be produced as increasing of ship resistance (delta Rw) versus ship performance efficiency, fuel oil consumption (ton per day) or sea margin. Under this output conditions, it can be comparable at same conditions even though the conditions of operations are different. Therefore, this analyzed data has a potential ability to have a look at ship performance conditions during ship in service. The purpose of this paper is to introduce our unique approach using noon data for time-dependent ship performance and then discuss the verification of this approach. As the case study, the noon report data for Japanese domestic bulker was chosen and the ship performance was evaluated in terms of different points of views. It was done comparing the conditions of before and after dry dock to evaluate our approach. In addition, the potential application of this approach will be discussed in this paper.

Research and Design of the Control System for Natural Gas Heater

2013 ◽  
Vol 842 ◽  
pp. 541-545
Author(s):  
Yun Guo ◽  
Zhi Qiang Huang ◽  
Shun Xin Yang
Keyword(s):  
Control System ◽  
Natural Gas ◽  
Power Plants ◽  
Production Efficiency ◽  
Combustion Efficiency ◽  
Gas Temperature ◽  
Technical Requirements ◽  
Real Time Measurement ◽  
And Control ◽  
Measurement And Control

Natural gas heaters are widely used in gas-fired power plants to meet the combustion needs and to improve the combustion efficiency. For the control features and technical requirements of the natural gas heater, the computer automatic control system for natural gas heater has been designed,and realizes the temperature and liquid level real time measurement and control. The system increases significantly the control accuracy of natural gas temperature, eliminates potential unsafety and improves production efficiency.

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