Showing posts with label Alternative fuels. Show all posts
Showing posts with label Alternative fuels. Show all posts

Saturday, 17 September 2022

Determination of Performance Parameters of Insulated Diesel Engine with Plastic Oil with Supercharging| Chapter 8 | Technological Innovation in Engineering Research Vol. 8

 This paper focuses on elective fuel innovation for diesel motor and ecological insurance. Squander plastics are not biodegradable. They cause ecological debacles. A great many cows pass on each year in the wake of consuming these plastics. They produce poisonous exhaust, when they are scorched. Be that as it may, when these plastics are changed over into plastic oil by the course of pyrolysis, plastic oil can be utilized in diesel motors, as the properties of plastic oil are tantamount with diesel fuel. With regards to quick consumption of non-renewable energy sources, increment of monetary weight on agricultural nations because of increment of cost of import of unrefined oil and increment of contamination levels with petroleum products, the quest for elective powers has become appropriate. Vegetable oils and alcohols are significant substitutes for diesel fuel, as they are sustainable in nature. However vegetable oils have practically identical properties with diesel fuel, be that as it may, they have high consistency and low unpredictability causing burning issues in diesel motors. Alcohols have high unpredictability however low Cetane number (a proportion of ignition quality in diesel motor). Plastic oil got from squander plastic gathered from flotsam and jetsam by the course of pyrolysis has equitant calorific worth with diesel fuel. Notwithstanding, its thickness is higher than diesel fuel calls for low intensity dismissal (LHR) diesel motor. The idea of LHR diesel motor is to limit the intensity stream to the coolant there by increment of warm proficiency. This LHR motor is helpful for consuming high thick and low calorific worth energizes. LHR motor comprised of fired covered chamber head motor. Theperformance boundaries of brake warm productivity (BTE), fumes gas temperature (EGT), volumetric proficiency and coolant load were assessed at different upsides of brake mean successful strain (BMEP) of the motor. Brake explicit energy utilization not set in stone at full burden activity of the motor with differed infusion timing. To further develop execution of the motor, supercharging was applied at a tension of 0.8 bar. Information was contrasted and perfect diesel procedure on customary motor (CE). Infusion timing was changed with an electronic sensor. The exhibition of the two forms of the motor improved with supercharging of the motor.


Author(s) Details:

Mohammad Attalique Rabbani,
Department of Mechanical Engineering, Osmania University, Hyderabad, India.


M. V. S. Murali Krishna,
Department of Mechanical Engineering, Chaitanya Bharathi Institute of Technology, Hyderabd, India.

P. Usha Sree,
Department of Mechanical Engineering, University College of Engineering, Osmania University, India.

Please see the link here: https://stm.bookpi.org/TIER-V8/article/view/8255

Monday, 12 September 2022

Combustion Characteristics of a Semi-Adiabatic Diesel Engine with Plastic Oil with Supercharging | Chapter 8 | Techniques and Innovation in Engineering Research Vol. 1

 Plastic waste cannot biodegrade. It poses health risks to both people and livestock. Researchers discovered that it has natural carcinogenic properties. Oil made from plastic can be used in internal combustion engines. The need for alternative fuels has become urgent given the rapid depletion of fossil fuels, the continuous rise in pollution caused by fossil fuels, and the rising cost of importing crude oil, which could have been invested in other crucial areas like agriculture, health, and poverty alleviation. Due to their renewable nature, vegetable oils and alcohols are crucial diesel fuel replacements. Alcohols have a high volatility but a low calorific value and cetane number, which is a gauge of the quality of the combustion in a diesel engine. Vegetable oils, on the other hand, have comparable cetane numbers and calorific values. However, they are both highly viscous and quite stable. Plastic oil, which can be produced from waste materials using a process called pyrolysis and has qualities that are similar to those of diesel fuel, is an excellent substitute for diesel fuel. Plastic oil, however, has a high viscosity. The plastic oil was supplemented with diethyl ether (DEE) in the recommended quantity (15%) to lower viscosity and increase cetane number. These viscous fuels can be burned efficiently in semi-adiabatic diesel engines or low heat rejection engines (SADE). The goal of SADE is to create hot combustion chambers appropriate for burning highly viscous fuels by minimising heat loss to the coolant. The SADE's powerplant was air gap insulated. If the architecture of the combustion chamber was altered from a standard combustion chamber to an insulated combustion chamber, it is important to determine or assess the combustion characteristics of the test fuels. This report's objective was to identify the combustion characteristics of peak pressure (PP), time of peak pressure (TOPP), and maximum rate of pressure rise (MRPR) during full load operation of the engine using both versions of the engine, such as conventional engine (CE) and SADE with and without supercharging and with different injection timing. Supercharging is the process of adding more (oxygen) air at a high pressure to the engine's inlet manifold in order to increase engine output. The TDC (top dead centre) encoder was linked to the extended portion of the extended shaft of the dynamometer, and the piezoelectric transducer was connected to the top portion of the cylinder head. The TDC encoder and transducer were both attached to the console. The console transforms the magnetic signal from the TDC encoder and the pressure signal from the transducer into an electric signal that is fed to the computer. When operating at full load, the computer reads the combustion parameter data. An electronic sensor was used to change the injection timing. SADE's enhanced injection time improved the combustion characteristics at full load operation.


Author(s) Details:

Aditya Seshu Machiraju,
Department of Mechanical Engineering, Osmania University, India.

M. V. S. Murali Krishna,
Department of Mechanical Engineering, Chaitanya Bharathi Institute of Technology, India.

P. Ushasri,
Department of Mechanical Engineering, University College of Engineering, Osmania University, India.

Please see the link here: https://stm.bookpi.org/TAIER-V1/article/view/8179

Saturday, 15 January 2022

Determining the Performance Parameters of Carbureted Butanol and Plastic Oil Blended with Diethyl Ether | Chapter 05 | Novel Perspectives of Engineering Research Vol. 5

 Background of the Problem: With the depletion of fossil fuels, ever-increasing fuel prices in the international market putting a financial strain on the Indian government, and ever-increasing pollution levels caused by fossil fuels, the hunt for alternative fuels has become critical. Because they are renewable, alcohols and vegetable oils are viable alternatives to diesel fuel. However, because of the disadvantages of vegetable oils (high viscosity and low volatility) and alcohols (low energy content and cetane number), semi-adiabatic diesel engines are required (SADE). Plastic oil's high energy content and butanol's high volatility can be combined to achieve the lowest possible emission levels.

The goal of this study was to assess the performance parameters of a conventional engine (CE) and a semi-adiabatic diesel engine (SADE) with carbureted butanol and injected plastic oil blended with 20 percent diethyl ether with different injection time.

Engine configuration, injection timing, and test fuels of diesel and carbureted butanol, as well as plastic oil, are all design variables.

The experimental engine is a single-cylinder, four-stroke, water-cooled, 3.68 k W engine with a ceramic coated cylinder head (partially stabilised zirconium of thickness 500 m covered over the inside area of the cylinder head).

At various values of the engine's brake mean effective pressure (BMEP), performance characteristics such as brake thermal efficiency, exhaust gas temperature, coolant load, and volumetric efficiency were calculated. At full load, the engine's brake specific energy consumption was measured. With each sensor, the injection timing was changed. At full load on a mass basis, butanol was carbureted into the engine through a variable jet carburetor fitted at the engine's inlet manifold at various percentages of crude plastic oil. In a traditional technique, crude plastic oil was combined with 20% diethyl ether and injected through an injector. Diethyl ether was added to boost the cetane number, which assesses the quality of the fuel's ignition in a diesel engine.

Brief Results: When compared to clean diesel on a conventional engine, SADE with carbureted butanol and injected plastic oil combined with diethyl ether improved performance.

Author(S) Details

B. T. Naik
Mechanical Engineering Department, Osmania University, Hyderabad, India.

M. V. S. Murali Krishna
Mechanical Engineering Department, Chaitanya Bhrathi Institute of Technology, Hyderabad, India.

P. Usha Sri
Mechanical Engineering Department, Osmania University, Hyderabad, India.

View Book:- https://stm.bookpi.org/NPER-V5/article/view/5321