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.

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Investigations on Exhaust Emissions of a Low Heat Rejection Diesel Engine with Alternative Fuels | Chapter 11 | Challenging Issues on Environment and Earth Science Vol. 6

 The search for alternative fuels has become necessary in light of the rapid depletion of conventional fuels. Because they are renewable, alcohols and vegetable oils are important diesel substitutes. Vegetable oils have a calorific value and cetane number that are comparable to diesel fuel. Alcohols have the advantage of having a high volatility and having oxygen in their chemical structure or makeup. Vegetable oils, on the other hand, have the disadvantages of high viscosity and moderate volatility. Alcohols have a low cetane number (a measure of the quality of combustion in a diesel engine) and a poor calorific value. As a result, vegetable oils and alcohols necessitate a diesel engine with a low heat rejection (LHR). It can solve the problem of vegetable oils and alcohols combusting. Exhaust emissions from various variants of low heat rejection (LHR) diesel engines, such as the LHR-1 engine (ceramic coated engine), LHR-2 engine (air gap insulated engine), and LHR-3 engine (combination of LHR-1 and LHR-2 engine) using carbureted butanol and unrefined jatropha oil, were investigated (CJO). As a result, the benefits of vegetable oil and alcohol can be used to reduce engine pollution. At full load operation, exhaust emissions of particulate matter, nitrogen oxides (NOx), and aldehydes from several LHR engine designs were measured. a traditional engine (CE). Particulate matter and NOx were measured using an AVL Smoke metre and a Netel Chromatograph NOx analyzer, respectively, at full load operation. At full load operation, aldehydes such as formaldehyde and acetaldehyde were assessed using a wet approach known as the dinitrophenyle (DNPH) method. With carbureted butanol, LHR variants of the engine reduced exhaust pollutants significantly. In different variants of the engine, increasing the injection pressure reduced emissions even more.

Author(s) Details

Dr. M. V. S. Murali Krishna
Mechanical Engineering Department, Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-500 075, Telangana State, India.

Dr. V. V. R. Seshagiri Rao
Mechanical Engineering Department, Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-500 075, Telangana State, India.

Dr. R. P. Chowdary
Mechanical Engineering Department, Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-500 075, Telangana State, India.

Dr. N. Janardhan
Mechanical Engineering Department, Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-500 075, Telangana State, India.

Mr. N. Venkateswara Rao
Mechanical Engineering Department, Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-500 075, Telangana State, India.

Dr. T. Ratna Reddy
Mechanical Engineering Department, Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-500 075, Telangana State, India.

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