Emission characteristics of diesel fuel composed of linseed oil (Linum Usitatissium) blends utilizing rice husk producer gas

Author(s):  
Swarup Kumar Nayak ◽  
Purna Chandra Mishra
2018 ◽  
Vol 15 (2) ◽  
pp. 183-191
Author(s):  
Ganesh S. Warkhade ◽  
A. Veeresh Babu

Purpose The purpose of this study is to get much insight about the combustion and emission characteristics of partially processed high free fatty acid linseed oil, i.e. esterified linseed oil (ELO), and diesel fuel in a single-cylinder compression ignition engine. Design/methodology/approach The variable compression ratio (CR) diesel engine (3.5 kW) of CR ranging from 12:1 to 18:1 is used for the experimentation purpose. In this study, CR varied from 16:1 to 18:1 for investigating the combustion and emissions characteristics of ELO. Various features such as combustion pressure, net heat release rate and mean gas temperature are analysed. The emission characteristics such as hydrocarbon, carbon monoxide, carbon dioxide and nitrogen dioxide are investigated with different loads and CRs. The effect of an ambient temperature condition is also reported. Findings Results from this investigation reveal that the burning of ELO is found to be advanced for all CRs as compared to diesel fuel, whereas these features were found to be lower for a CR of 17. Emissions of ELO are found to be higher at all loads and CRs. Overall, this study provides a necessary framework to enhance further research in this area. Originality/value This investigation shows that ELO has better combustion in the first phase of combustion. However, the exhaust emissions of ELO have higher value due to improper combustion in the second and subsequent phase of combustion due to higher viscosity.


EKUILIBIUM ◽  
2015 ◽  
Vol 14 (2) ◽  
Author(s):  
Sunu Herwi Pranolo

<p>Abstract: Producer gas from rice husk gasification is the potential gaseous fuel for partially<br />substituting diesel fuel demand as it contains combustible gases (CO, H<br />2<br />). This<br />research examined the effects of air flow rate entering the diesel engine and electrical load on<br />diesel fuel consumption, electrical power of generator, and rice husk specific consumption in<br />gasifier. Gasification process took place in a downdraft air-blown gasifier with 10 cm throat<br />diameter. At rice husk consumption rate of 1 kg/hour and temperature of 827<br />C, the Specific<br />Gasification Rate (SGR) was 81.53 kg/(m<br />.hour) and the solid residue was 36% (w/w) of input<br />biomass. Total combustible gas content in producer gas was 21.6%. It was observed that diesel<br />fuel saving of 9.32% was obtained at air flow rate of 1.55 × 10<br />2<br />-3<br />m<br />/s and electrical load of 95%<br />from maximum generator power. Using producer gas at flow rate of 0.91 × 10<br />3<br />/s caused<br />generator de-rating of 8.33% at electrical load of 10%. Generating 1 kWh of electricity at air flow<br />rate of 2.99 × 10<br />-3<br />m<br />/s and electrical load of 95% required 1.85 kg of rice husk. A kilogram of<br />rice husk may substitute 0.26 L of diesel fuel at this air flow rate and load.<br />3<br />Keywords: rice husk; gasification; dual-fuel; specific consumption; de-rating<br />, and CH<br />4<br />o<br />-3<br />m<br />3</p>


Author(s):  
Ashutosh Kumar Rai ◽  
Bhupendra Singh Chauhan ◽  
Haeng Muk Cho ◽  
Naveen Kumar

To meet the challenges of increased energy need and concerned about environmental friendly, renewable fuels are being explored in the current energy scenario. In the present study non edible Linseed oil was used as alternative source for diesel engine fuel. The physico-chemical properties were evaluated and compared with mineral Diesel and found in close resemblance. The fuel was tested by using performance and emission parameters on an unmodified single cylinder diesel engine. The study was done by using diesel & Diesel-linseed oil blends at various loads from no load to 100% loads with interval of 20%. The linseed fuel was blended into 5%, 10%, 15% and 20% v/v ratio with neat diesel and compared with baseline data of neat diesel operation. Performance parameters such as brake thermal efficiency and brake specific fuel consumptions were studied and emission parameters such as CO (carbon mono oxide), UBHC (unburned hydrocarbon), NOx (oxides of nitrogen), CO2 (carbon di oxide), exhaust temperature were measured. The thermal efficiency of the engine was lower and the brake specific energy consumption of the engine was higher when the engine was fueled with Linseed oil-Diesel blends compared to diesel fuel. Emission characteristics are better than diesel fuel. NOx formations, using various fuel blends during the whole range of experiment were lower than diesel fuel. The results from the experimental study suggest that the linseed oil could be a potential substitute for diesel engine in the near future as far as small and medium energy productions are concerned.


Fuel ◽  
2015 ◽  
Vol 140 ◽  
pp. 156-163 ◽  
Author(s):  
Lijiang Wei ◽  
Chunde Yao ◽  
Quangang Wang ◽  
Wang Pan ◽  
Guopeng Han

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