Query: n-pentanol diesel

title: Emission and performance analysis of pentanol diesel blends in unmodified diesel engine
abstract: In order to improve its performance and emission parameters, higher alcohols are mixed to neat diesel. Higher alcohol (Pentanol) has the capacity for oxygen enrichment during combustion process which put into the catalytic reaction and gets better the combustion process. Pentanol is blended with neat diesel at different measured volumes of 15% 25% and 35% Three blended fuels prepared by volume of 85% of diesel and 15% of pentanol (D85P15) 75% of diesel and 25% of Pentanol (D75P25) and 65% of diesel and 35% of Pentanol (D65P35) respectively. Effect of emission and performance parameters have been studied in an unmodified diesel engine propelled with pentanol diesel blends at various proportions. Pentanol acts as a catalyst (oxidising) and it was helpful in reducing carbon monoxide and hydrocarbon emissions. It is found that a considerable reduction in NOx emission and it also reduces fuel consumption which increases in brake thermal efficiency.

title: Effect of the addition of 1 pentanol on engine performance and emission characteristics of diesel and biodiesel fuelled single cylinder diesel engine
abstract: Bioalcohols have recently become one of the promising alternate fuels. Lower alcohols exhibit some problems like phase separation, stability issues, storage problems, corrosion etc. Hence, the addition of higher alcohols is regarded least problematic and the concept of using higher alcohols as fuel blends is relatively new. In this article, the effects of the addition of higher alcohol (1 pentanol) on engine performance and emission characteristics are discussed. Two reference fuels (diesel and biodiesel derived from waste cooking oil) and two test fuels (blends of 20% of 1 pentanol and 80% of either diesel or biodiesel) are tested in a single cylinder compression ignition diesel engine for six load conditions (0, 4, 8, 12, 16, and 20 kg) at a constant speed of 1200 rpm. The engine performance and emission characteristics are determined and discussed.

title: Emission analysis of cashew nut biodiesel pentanol blends in a diesel engine
abstract: The present work deals with the effect of doping pentanol blends with cashew nut biodiesel and compared with neat diesel. Cashew nut is a non edible oil, derived from a by product of the c.

title: A novel alternative fuel mixture (diesel biodiesel pentanol) for the existing unmodified direct injection diesel engine: performance and emission characteristics
abstract: The present study investigated the performance and emission characteristics of a single cylinder direct injection diesel engine fuelled with diesel jatropha biodiesel pentanol blends. The test

title: An experimental assessment on semi low temperature combustion using waste oil biodiesel/C3 C5 alcohol blends in a diesel engine
abstract: Biodiesel fuel properties should be improved in order to be able to use such alternative fuels at high mixing ratios in diesel engines. Higher alcohols such as propanol (C3) n butanol (C4) and 1 pentanol (C5) are competitive alternative fuels for diesel engines due to their liquid nature, high oxygen contents, high cetane number (CN) lower latent heat of evaporation (LHE) and their production from renewable biomass. Oxygen containing fuels that can be used in diesel engines reduce the combustion chamber temperature and harmful emissions. At this point, the addition of higher alcohols to biodiesel also has the potential to improve both low temperature combustion and fuel properties. The purpose of this work is to investigate the fuel properties of binary blends of waste oil methyl ester (WB) and the higher alcohols of C3, C4 and C5, and their effects on engine characteristics to achieve semi low temperature combustion (S LTC) and obtain lower regulated emissions in comparison to WB. Three different test fuel blends were prepared by volume: 80%WB 20%C3, 80%WB 20%C4, and 80%WB 20%C5. In order to determine engine performance and exhaust emissions, tests were performed at four engine loads (0, 3, 6, 9 kW) with a constant engine speed (1800 rpm) According to engine performance and exhaust emissions results, the addition of C3, C4 and C5 to WB had the effect of increasing brake specific fuel consumption (BSFC) and exhaust gas temperatures (EGT) while the brake thermal efficiency (BTE) decreased. The overall WB C3/C4/C5 blends lean combustion of the diesel engine provided low carbon monoxide (CO) and oxides of nitrogen (NOx) emissions compared to WB, alone. Use of binary blends as S LTC providers in diesel engines offer the benefits of ultra low NOx and CO emissions but suffers from a lowered energy efficiency and higher hydrocarbon (HC) emission due to the high oxygen and volatility of higher alcohols. It can be concluded that C3, C4 and C5 are capable of reducing harmful emissions, however, this is accomplished at the expense of lower engine performance characteristics.

title: Utilization of Pentanol as Biofuels in Compression Ignition Engines
abstract: Of several higher alcohols such as pentanol, hexanol, octanol, decanol, dodecanol, phytol, and fusel oil, pentanol isomers have recently received remarkable attention as alternative fuels for diesel engines because they emit less greenhouse gases and harmful pollutants. Because of great potential as a blending component and physicochemical properties of pentanol, binary blends such as diesel/pentanol and biodiesel/pentanol and ternary blends such as diesel/biodiesel/pentanol were mainly studied in the conventional diesel engine. Quaternary blends of diesel, biodiesel, straight vegetable oil, and pentanol were also investigated. Very few information related to the application of pentanol to advanced compression ignition (CI) engine is available in the literature. The diesel/pentanol blends coupled with exhaust gas recirculation (EGR) technology could simultaneously reduce NOx and soot emissions from CI engine. Further, diesel/pentanol blends generally produced higher CO and hydrocarbon (HC) emissions than did diesel fuel. However, CO and HC emissions were significantly reduced by mixing the cetane improver with the blends. Up to 45 50% n pentanol/diesel blends can be safely used in diesel engines without any engine modification or any additive. However, in terms of kinematic viscosity, lubricity, and oxidation stability of diesel/pentanol blends, the use of pentanol should be limited to concentrations below 10% Generally, in the studies of biodiesel/pentanol blends in CI engines, the reduction of CO, HC, NOx, and smoke emissions was observed compared to neat biodiesel. For ternary blends, diesel/biodiesel/pentanol blends were mainly investigated by the researchers. The emission characteristics in terms of CO, HC, NOx, and smoke opacity showed the different trends according to the pentanol proportion in the ternary blends, particularly <10% or more than 10% To increase the biofuels in the CI engine, more studies for the quaternary blends of pentanol are required.

title: Emission characteristics on single cylinder diesel engine using biofuels
abstract: The aim of the present research is to investigate the emission characterics of the engine using neem oil methyl ester (N100) with higher alcohol. The N100 is mixed with pentanol by varying the percentage from 10 to 20. The emission parameter such as hydrocarbon(HC) nitrox oxide(NOx) and carbon monoxide(CO) was measured at various load conditions using the gas analyzer. Nitrox oxide and CO content increase with increasing the load but HC content decreases up to half load conditions and then it decreases with increasing load. By doping 20% of pentanol to neem oil biodiesel shows 2.3 and 4.2% reduction in HC and CO than neat biodiesel at all loads respectively. In addition, by doping 20% of pentanol to neem oil biodiesel shows 3.3 and 4.7% reduction in smoke and NOX emissions than neat biodiesel at all loads respectively. Further, the operation of the engine is smooth and no visible damage in engine parts were noticed.

title: Predictive correlations for NOx and smoke emission of DI CI engine fuelled with diesel biodiesel higher alcohol blends response surface methodology approach
abstract: This study explore the application of Taguchi design and Response surface methodology for optimizing the NOx and smoke emission of a diesel engine with minimum penalty in brake specific fuel consumption (BSFC) A single cylinder 4.4 kW Direct Injection stationary engine was used for the investigation. Eight parameters (percentage of Biodiesel, percentage of Butanol, percentage of propanol, percentage of pentanol, Piston Geometry, Retarded injection Timing, Injection pressure. Percentage EGR) which have significant effects on engine emissions and performance were selected as factors and NOx, smoke and BSFC were selected as variables for the present investigation. Three levels were chosen in each factor and tests were conducted with different levels of the chosen factors by selecting suitable orthogonal array. ANOVA was employed to obtain the most influencing factor for the chosen variables. Taguchi design was employed for screening the significant factors and optimal custom design under Response Surface Methodology (RSM) was used for optimizing the level of the factors. A predictive correlation was developed for the chosen engine variables as a function of tested factors through regression analysis.

title: Comparative account of the effects of two high carbon alcohols (C5 C6) on combustion, performance and emission characteristics of a DI diesel engine
abstract: Pentanol and Hexanol are two excellent biofuels that could be derived from lignocellulosic biomass feedstock without disturbing food based sources. The present study utilizes these two alcohols as blend constituents with diesel by up to 30% by vol. (designated as Pen30 and Hex30) in a DI diesel engine subject to modifications in injection timing (early and late) and intake air dilution through EGR (up to 30% The modifications were intended to obtain an optimum performance of the engine. The combustion and performance characteristics of this engine were analyzed with reference to diesel operation. The results indicated that Pen30 blend experienced longer ignition delays, higher peaks of pressure and heat release rates (HRR) than Hex30 at all conditions of EGR. The premixed combustion phasing with the blends were more enhanced followed by numerous HRR spikes during diffusion phasing indicating better combustion. Both the blends delivered better brake thermal efficiencies but with a penalty in fuel consumption. Pen30 delivered better BTE but consumed more than Hex30. NOx emissions of the blends were of the order: Diesel Pen30 Hex30. Smoke densities of the blends were of the order: Diesel Hex30 Pen30. HC emissions of the blends were of the order: Pen30 Hex30 Diesel. CO emissions of the blends followed the trends of smoke emissions. Both these alcohols could be excellent partial substitutes for diesel with minor modifications to the engine subject to long term tests on durability.

title: Experimental investigation of diesel engine fuelled with different alkyl esters of Karanja oil
abstract: The rising pollution levels resulting from vehicular emissions and limited reserves of petroleum based fuels have left mankind in pursuit of alternatives to diesel. There have been stringent regulations generated by authorities around the world regarding vehicular emissions from internal combustion engines. To this end, researchers have been exploring different sources of alternative fuels such as biodiesel produced from non edible oil sources such as Karanja, Jatropha accompanied by the alcohol fuels, methanol, ethanol, butanol and propanol. This work has experimentally investigated the impacts of various blends of Karanja biodiesel with a chain of fewer alcohols (ethanol, 2 propanol, methanol, 1 butanol and 1 pentanol) to identify the potential of higher alcohols in the production of biodiesel and application to the diesel engine. The results showed that the brake thermal efficiency was decreased by 3.3% while an increased brake specific fuel consumption was recorded for KOPnE20 by 11.75% compared to the mineral diesel fuel, which could be attributed to the higher calorific values of the respective fuels. The emission results indicated that the carbon dioxide emission increased by 32.25% while the nitrogen of oxide emission decreased by 6.72% for KOPnE20 compared to the diesel fuel at full load condition.