Wyniki wyszukiwania - BazTech

1

Water absorption and mechanical behaviour of green fibres and particles acting as reinforced hybrid composite materials

Kchaou Mohamed, Arul Sujin Jose, Athijayamani A., Adhikary Priyabrata, Murugan S., Aldawood Faisal Khaled, Abualkhair Hussain F.

Materials Science Poland

|

2023

|

Vol. 41, No. 4

132--143

EN

This paper highlights the results of an experimental study on the preparation and characterization of Luffa cylindrica fiber (LCF) and groundnut shell particle (GSP) reinforced phenol-formaldehyde (PF) hybrid composites. The amount of LCFs was fixed at 25 wt%, while the amount of groundnut shell particles ranged from 0 to 25 wt%. Observations were made regarding the water absorption and thickness swelling behaviour of prepared hybrid composites. In addition, the mechanical behaviours of hybrid composites have been studied under both dry and wet conditions. In comparison to dry conditions, the mechanical properties of the hybrid composites were lower when they were wet. Hybrid composites comprising 25% Luffa cylindica fibre and 15% groundnut shell particle (25LCF/15GSP) exhibit the highest level of mechanical properties under both conditions. The percentages of water absorption and thickness swelling increase as groundnut shell particles increase. The composite 25LCF/25GSP exhibited the highest percentage of water absorption and thickness swelling. Compared to date palm leaf (DPL)-reinforced composites, 25LCF/15GSP showed more significant mechanical and physical properties. We concluded that the inclusion of groundnut shell particles in LCF/PF composites substantially improved the mechanical properties of the hybrid composite. The range of increment, however, was narrower under moist conditions compared to dry conditions.

2

Tyre pyrolysis oil fueled dual fuel diesel engine

Hariharan S., Murugan S., Nagarajan G.

Silniki Spalinowe

|

2007

|

R. 46, nr SC3

31-38

EN

Studies report that Tyre Pyrolysis Oil (TPO) derived from waste automobile tyres through Pyrolysis has similar properties to that of diesel fuel. However the cetane number of Tyre Pyrolysis Oil is lesser than diesel. Early investigations reveal that TPO blended with diesel could be used as an alternate fuel for diesel engines. The maximum TPO diesel blend concentration was 70% and the engine failed to operate satisfactorily beyond this concentration. This may be due to the inferior cetane number of TPO as compared to Diesel. The NOx and smoke were high in diesel engine while running with TPO diesel blends. The main aim of the present work is to assess the effect of using DEE in a diesel engine running on TPO, Small quantities of DEE were inducted along with air in the suction manifold and TPO was injected into the combustion chamber of a single cylinder air cooled diesel engine. The performance and emission characteristics are reported in this paper.

3

Distilled Tyre Pyrolysis Oil as an alternate fuel for CI engine

Jesila J., Nagarajan G., Murugan S.

Silniki Spalinowe

|

2007

|

R. 46, nr SC3

266-273

EN

Intensified search for alterative fuels is the main interest across the world due to the impact of fossil fuel crisis, ever increasing vehicle population and oil price and stringent emission norms. On the other hand, the disposal of waste tyres from the automotive vehicles is becoming complex. Apart from alterative biomass derived fuels like Ethanol, Methanol, Hydrogen, Vegetable oils etc, the new sources for alternative fuels are also appreciable. In this context, pyrolysis of solid waste is currently receiving renewed interest. The disposal of waste tyres can be simplified to some extent by pyrolysis. The properties of the pyrolysis oil derived from the waste automobile tyres were analyzed and compared with the petroleum products and pure rubber pyrolysis oil. Also, TPO-Diesel blends were used as an alternate fuel in a four stroke diesel engine without any modification to the engine. However, the crude TPO has a higher viscosity and sulphur content. The Crude TPO was distilled through vacuum distillation and desulphurised. The properties of the Distilled TPO will be analysed using FTIR, GC and TGA tests. The performance and emission characteristics of a CI engine running with 80 % and 90 % Distilled TPO Diesel blends as fuel have been studied.