Evaluating the Engine Emission Outcomes from a CRDI Engine Operated with Low Viscous Bio-oil Blends Under the Influence of Diethyl Ether

Panithasan, Mebin Samuel; Malairajan, Manimaran; Balusamy, Mathivanan; Venkadesan, Gnanamoorthi

doi:10.1007/978-981-15-9678-0_24

Cited by 7 publications

(2 citation statements)

References 20 publications

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“…In addition, the presence of oxygen in the fuel helped it to burn more efficiently, increasing the BTE of the engine [34,35]. Some other authors have found the efficiency to decrease, attributing this to the negative effect of the lower cetane number of turpentine [36]. However, this tended not to be the case for the present study.…”

Section: Fuel Consumptioncontrasting

confidence: 55%

Turpentine as an Additive for Diesel Engines: Experimental Study on Pollutant Emissions and Engine Performance

et al. 2023

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The need for reducing fossil fuel consumption and greenhouse gas (GHG) emissions in internal combustion engines has raised the opportunity for the use of renewable energy sources. For the progressive replacement of fossil fuels like diesel, those derived from the sustainable management of forest resources may be a good option. In Portugal, pine trees (pinus pinaster) are among the most widely cultivated tree species. Turpentine can be extracted from their sap without harming the tree. Turpentine is known to be a good fuel with a lower viscosity than regular diesel but with a comparable caloric value, boiling point and ignition characteristics, although it is not widely used as a compression ignition fuel. Moreover, recent research has highlighted the possibility of substantially increasing the turpentine yield through biotechnology, bringing it closer to economic viability. The present study investigates the performance, pollutant emissions and fuel consumption of a 1.6 L four-cylinder direct-injection diesel engine operating with several blends of commercial diesel fuel and turpentine obtained from pine trees. The aim of this study was to assess whether it would be possible to maintain or even improve the performance, fuel consumption and GHG and pollutant emissions (HC, NOx, CO and PM) of the engine with the partial incorporation of this biofuel. Turpentine blends of up to 30% in substitution of regular diesel fuel were tested. The main novelties of the present work are related to (i) the careful testing of a still-insufficiently studied fuel that could gain economical attractiveness with the recent developments in yield improvement through biotechnology and (ii) the tests conducted under fixed engine load positions typical of road and highway conditions. The addition of this biofuel only slightly impacted the engine performance parameters. However, a slightly positive effect was observed in terms of torque, with an increase of up to 7.9% at low load for the 15T85D mixture and 6.8% at high load being observed. Power registered an increase of 9% for the 15T85D mixture at low speed and an increase of 5% for the 30T70D mixture at high speed when compared to the reference fuel (commercial diesel fuel). While the efficiency and fossil GHG emissions were improved with the incorporation of turpentine, it had a mixed effect on polluting emissions such as unburned hydrocarbons (HC) and smoke (PM) and a negative effect on nitrogen oxides (NOx). NOx emissions increased by 30% for high loads and 20% for low loads, mainly as an indirect effect of the improvement in the engine performance and not so much as a consequence of the marginally higher oxygen content of turpentine relative to commercial diesel fuel.

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Section: Fuel Consumptioncontrasting

confidence: 55%

Turpentine as an Additive for Diesel Engines: Experimental Study on Pollutant Emissions and Engine Performance

et al. 2023

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“…Naptha, xylene, di-tert-butyl, peroxide, ethylbenzene, 2-ethylhexlynitrate (2-EHN), diethyl ether and 1,4-dioxane were a few cetane improver additives being used for the reduction of ignition time delay in a diesel engine. [9][10][11][12] Due to oxygen availability, easy availability, mainly due to the absence of nitrogen atom di-tert-butyl-peroxide, was used as an additive in the present work to reduce the ignition delay period of the fuel. 13 Many additives are added with fuel to enhance its combustion process, improve its efficiency and reduce emissions.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the outcomes of a single-cylinder CRDI engine operated by lemon peel oil under the influence of DTBP, rice husk nano additive and water injection

Panithasan

Venkadesan²

2021

International Journal of Engine Research

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In the search for an alternative energy source with lesser pollution for transportation needs, bio-oil, a denser and viscous fuel that needs a transesterification process, have been widely considered for diesel engines. However, these problems are solved by using low viscous biofuel, but this improvement also significantly leads to increased NOx emission. Hence this present study investigates the usage of a low viscous biofuel in the CRDI engine with measures to reduce NOx emission through water injection technique. The low viscous bio-oil was used in this study along with an ignition enhancer (di-tert-butyl-peroxide), non-metallic nano additive (rice husk). They were tested in a constant speed, single-cylinder, diesel engine for various loads. Considering the brake thermal efficiency (BTE), 2% and 150 ppm were selected as the optimum value after testing five ratios (1%, 1.5%, 2%, 2.5% and 3%) of di tert butyl peroxide (DTBP) and four ratios (50, 100, 150 and 200 ppm) of rice husk (RH). The lemon peel oil (LPO) with the optimum additive ratio produced 30.69% BTE, which was 4.7% lesser than diesel fuel. A considerable decrease in fuel consumption and emissions except for nitrogen oxides (NOx) is recorded. NOx emission increased by 17.3% for the biofuel blend containing RH and DTBP. To control NOx emission, 2% of water was injected into the intake manifold with the fresh intake air. Two percent by vol. was finalised after experimenting four ratios (1%, 2%, 3% and 4%) of water addition. This 2% water reduces 11% of NOx emission and affects the other outputs, denoted with the 8.9% reduced BTE value compared with diesel fuel. Thus, the LPOC combination proved to operate well in the CRDI engine and produces lower NOx emissions than other LPO blends.

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A comparative study on natural and synthetic additive with juliflora methyl ester operated CI engine in a LHR mode

Venkatachalam,

Dhairiyasamy,

Rajendran

et al. 2024

Clean Techn Environ Policy

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Evaluating the Engine Emission Outcomes from a CRDI Engine Operated with Low Viscous Bio-oil Blends Under the Influence of Diethyl Ether

Cited by 7 publications

References 20 publications

Turpentine as an Additive for Diesel Engines: Experimental Study on Pollutant Emissions and Engine Performance

Turpentine as an Additive for Diesel Engines: Experimental Study on Pollutant Emissions and Engine Performance

Evaluating the outcomes of a single-cylinder CRDI engine operated by lemon peel oil under the influence of DTBP, rice husk nano additive and water injection

A comparative study on natural and synthetic additive with juliflora methyl ester operated CI engine in a LHR mode

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