NOX Emissions and Performance of a Single-Cylinder Diesel Engine with Emulsified and Non-Emulsified Fuels

Davis, J. A.; Johnson, Donald M.; Edgar, Don W.; Wardlow, George W.; Sadaka, Sammy

doi:10.13031/2013.41340

Cited by 10 publications

(6 citation statements)

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“…The lowest BSFC (284.2 g/kW·h) was produced when CS-B100 was used, which was lower than 364.58 g/kW·h and 333.27 g/kW·h for CSB-E20 and CSB-ME20, respectively. These results matched the results of [18,26], who recorded a decline in the brake power with emulsion fuels, and were not consistent with [19] and [22], who found higher brake power with emulsion fuels. Figure 10.…”

Section: Engine Brake Specific Fuel Consumptioncontrasting

confidence: 65%

“…This maximum power of CSB-ME20 at 2320 rpm was lower than the maximum power from CSB-B100, which was found to be at 2900 rpm. The general outcomes presented in Figure 9 were inconsistent with the results of [22] and [19]. Davis Johnson [22] found that emulsion fuel produced more power than net biodiesel fuel at all engine speeds in spite of the 11.1% lower heating value of the emulsion fuel.…”

Section: Brake Powermentioning

confidence: 75%

“…According to Fayyad et al [21], emulsion fuels were first brought to attention in 1931 by Joseph Vance, and the fuels are still not very well known or accepted by consumers. The use of emulsified water in diesel or biodiesel fuels has been widely investigated by many researchers [14,15,18,19,22]. NadeemRangkuti [15] had evaluated the factors affecting the preparation of emulsified water in diesel and their impact on engine performance and emission.…”

mentioning

confidence: 99%

“…The outcomes and the conclusions of the aforementioned studies differed widely. This could be attributed to many factors such as the procedure followed in preparing the emulsions, differences in the chemical and physical properties of emulsion constituents, variation in blend ratios, differences in specification, the age of the engines used in the tests, and environmental conditions in the laboratories.It is noteworthy that the results of the literature showed diverse findings on the engine power, CO emission and NO x emission [22]. The majority of the researchers reported a reduction in brake power produced by the engine utilising emulsion fuel compared with diesel due to the presence of water that reduced the total energy content of the emulsion mixture.…”

mentioning

confidence: 99%

“…It is noteworthy that the results of the literature showed diverse findings on the engine power, CO emission and NO x emission [22]. The majority of the researchers reported a reduction in brake power produced by the engine utilising emulsion fuel compared with diesel due to the presence of water that reduced the total energy content of the emulsion mixture.…”

mentioning

confidence: 99%

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The Influence of Emulsified Water Fuel Containing Fresh Water Microalgae on Diesel Engine Performance, Combustion, Vibration and Emission

et al. 2019

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Microalgae is considered as an excellent potential renewable source of fuel in many forms including powder or slurry. A high percentage of emulsified water in the fuel is reported to reduce diesel engines’ emissions such as NOx, but that will compromise the engine output power. Using microalgae powder as an additive to enhance the emulsified water fuel heating value is the main objective of this work. Diesel engine combustion, vibration, performance and emissions were evaluated for pure cottonseed biodiesel (CS-B100), emulsified water 20% (vol.) in cottonseed biodiesel (CSB-E20) and emulsified water 20% (vol.) containing Fresh Water Microalgae Chlorella Vulgaris (FWM-CV) in cottonseed biodiesel (CSB-ME20). The emulsified water fuels showed a reduction in in-cylinder pressure, vibration, brake power, torque, exhaust gas temperature, CO2 and NOx, while BSFC and O2 were higher than the pure biodiesel (CS-B100). CSB-ME20 produced higher power and torque than CSB-E20 due to the presence of microalgae in the fuel that increased the energy content of the fuel.

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