Swarup Kumar Nayak

Functional characteristics of jatropha biodiesel as a promising feedstock for engine application

ABSTRACT The current article elaborates the various emission characteristics of jatropha oil methyl ester with fossil diesel in a direct injection (DI) diesel engine at various loading conditions for different volume proportions of test fuels. Results depicted that CO, HC, and NO emission were the lowest for jatropha biodiesel compared with diesel, while smoke opacity was more for pure biodiesel due to the high viscosity, low volatility, and low heat content compared with diesel. Jatropha biodiesel may be beneficial for reducing greenhouse gas emission without any engine modification.

Application of neem biodiesel and dimethyl carbonate as alternative fuels

ABSTRACT The present study focuses on the application of neem biodiesel and dimethyl carbonate as alternative fuels for modern engines, examining their properties and emission characteristics under varying load conditions. Experimental results show improved emission characteristics at an optimum load of 80%. There was a decrease in both hydrocarbons and carbon monoxide and an increase in additive blends with biodiesel. Similarly, smoke opacity was higher for pure biodiesel but fell with an increase in the percentage of additives. Therefore, the present article highlights the utilization of biodiesel in modern vehicles using various fuel additives under different operating conditions.

Experimental investigation on property analysis of Karanja oil methyl ester for vehicular usage

ABSTRACT This experimental investigation highlights Karanja oil, a nonedible, high-viscosity straight vegetable oil (SVO), blended with fossil diesel (FD) in different volume proportions [Karanja biodiesel 10 (KB10), KB20, KB30, and KB50] in order to assess the oil characteristics and emission analysis on a diesel engine at varying load conditions (0, 2, 4, 6, 8, and 10) kW. Results depict that brake thermal efficiency (BTE) increases, while brake-specific fuel consumption (BSFC) decreases with increase in blend percentage of diesel. Nitric oxide (NO) shows an increasing trend because Karanja oil has high viscosity, low volatility, and low heat content in comparison to FD. Similarly, carbon monoxide (CO), carbon dioxide (CO2), and hydrocarbon (HC) emission were the lowest with that diesel. In general, emission characteristics were discovered useful for KB20 over the entire range of engine operation.

Exhaust from a dual-fuel engine using quinine nut oil and producer gas

ABSTRACT This article investigates the emission characteristics of an engine operated in dual-fuel mode utilizing quinine nut oil and producer gas generated from coconut shell. The results obtained were analyzed with data of other researchers, and it is depicted that both nitrogen oxide and smoke emission showed a reducing graph while carbon monoxide, carbon dioxide, and hydrocarbon increased for dual-fuel mode in comparison to the single operating condition for all the prepared test fuels under different loading conditions. Hence, coconut shell as producer gas with quinine oil can together be utilized in reducing hazardous emission coming out of modern engines as an alternative fuel without much engine modification and concerns.

Characterization of coconut shell imitatived producer gas in adiesel engine

ABSTRACT The present paper elaborates the emission characteristics of coconut shell regarding maximum diesel saving and lower emissions on a dual-fuel engine. The test blends were examined in dual-fuel mode with variable gas flow rates, and are contrasted with fossil diesel at diverse loading conditions. The results inferred that the highest diesel saving of up to 80% occurs at 8 kW load. Likewise, nitric oxide diminishes; however, carbon monoxide and hydrocarbon increase gradually for all test fuels without any engine issue in the dual-fuel mode. It was finally concluded that coconut shell producer gas presents a very promising alternative fuel to diesel since it is renewable and a clean burning fuel having similar properties to that of diesel.

Experimental investigation on dual-fuel engine utilizing waste cooking oil and producer gas

ABSTRACT The present paper discusses the experiment carried out on a single-cylinder diesel engine utilizing waste cooking oil methyl ester and producer gas in dual-fuel mode. Various experiments were conducted to measure the physiochemical properties of both biodiesel and producer gas. Simultaneously, emission analysis was performed at different loading conditions with various diesel blends. The results were contrasted with data provided by various researchers. The results showed that carbon dioxide (CO2) and carbon monoxide (CO) show marginal increases, whereas nitric oxide (NO) and hydrocarbon (HC) show a reducing curve, for all prepared test fuels in dual-operation mode compared to that of single operating mode under different loading conditions. The fuel blends show better emission characteristics than that of diesel in both single and dual fuel modes of operation.

Experimental investigation of salmon blends and sesame wood chips as alternative fuel

ABSTRACT The present investigation elaborates on the exhaust emission and diesel fuel savings from a multicylinder diesel engine operated in dual fuel mode utilizing salmon biodiesel and sesame wood generated producer gas at different loads (0, 2, 4, 6, 8, and 10 kW) under an optimum producer gas flow rate of 19.72 kg/h. The results of this investigation depicted that both nitric oxide and smoke emission were reduced, while carbon monoxide, carbon dioxide, and hydrocarbon emission increased for dual mode in contrast to single fuel operating mode. Increase in biodiesel blend percentage shows a reducing curve for all the emission parameters in comparison to diesel fuel for all test conditions in dual fuel mode. Therefore, for optimum producer gas flow rate of 19.72 kg/h, it might be inferred that sesame generated producer gas with salmon biodiesel may be able to substitute for the conventional diesel for reducing greenhouse emission without much engine modification.

Physio-chemical characteristics of Punnang oil and rice husk-generated producer gas

ABSTRACT The present article illustrates the experimentation carried out utilizing Punnang oil and rice husk as producer gas on a dual-fuel engine. Several tests were performed in order to measure the characteristic properties of Punnang oil and the rice husk-generated producer gas. Similarly, various exhaust emission data were also calculated from the desired experiment and compared with the given value laid down by several other researchers in the same field. Results concluded that both NOx and smoke opacity are less for engines running in the dual mode, while CO2 and HC are observed to be on the higher side in comparison to that of fossil fuel. The fuel blend shows a significant result in terms of emissions compared to diesel in both operating modes.

Biodiesel vs diesel: A race for the future

ABSTRACT In the present paper, exhaust emission analysis was performed among different non-edible oils including Simarouba, jojoba, linseed, and nagchampa with conventional diesel in a diesel engine under different loading conditions. Results show that both oxides of nitrogen (NOX) and carbon dioxide (CO2) increased whereas carbon monoxide (CO), smoke opacity, and hydrocarbons decreased with respect to blend percentage for all prepared test fuels. Simarouba biodiesel may be beneficial for reducing greenhouse gas emissions without any engine modification.

Emission characteristics of jatropha oil blends using waste wood producer gas

ABSTRACT This paper reports about the release qualities of preheated jatropha oil mixes alongside producer gas from waste wood pieces of babul in double-fuel direct injection diesel motor. Jatropha oils were inspected in both individual and double-fuel modes at a consistent gas stream rate of 21.69 kg/h at all loading conditions. From the results it might be inferred that oxides of nitrogen and smoke emission decrease although carbon dioxide (CO2), carbon monoxide (CO), and hydrocarbon (HC) increase for all test fuels in double-fuel operation contrasted with that of a single mode at diverse loading conditions. All fuel blends show preferable emissions over that of diesel.