Showing papers by "K. Annamalai published in 2017"
TL;DR: In this article, a novel plant-based biofuel, namely Cymbopogon flexuous biofuel was identified, which has excellent fuel properties and is widely available in India and it seems to have the potential to make India selfsufficient in energy production.
Abstract: Researchers all around the world are making strenuous efforts to find alternative fuel to ameliorate the problem of depletion of fossil fuel. we have identified a novel plant based biofuel, namely Cymbopogon flexuous biofuel. It has excellent fuel properties and is widely available in India and it seems to have the potential to make India self-sufficient in energy production. Cerium oxide nanoparticles were synthesized using sol–gel combustion methods. Their structural, morphological and elemental properties were studied with the help of XRD, SEM, TEM and EDS respectively. On volume basis, 20% raw Cymbopogon flexuous biofuel was blended with diesel fuel, and various proportions of Cerium oxide nanoparticles, namely C20-D80 + 10 ppm, C20-D80 + 20 ppm andC20-D80 + 30 ppm were prepared. The properties like density, kinematic viscosity, calorific value of the test fuel were measured as per ASTM standards and compared with those of diesel fuel. An experimental study of its performance, emission, and combustion behavior was conducted at varied load conditions at a constant speed of 1500 rpm. NO x and smoke emission was simultaneously reduced by 3% and 6.6% respectively as compared with biofuel blend. Due to higher thermal stability and oxygen buffer of Cerium oxide nanoparticle the brake thermal efficiency was higher by 4.76% and cylinder pressure and heat release rate was also higher.
153 citations
TL;DR: In this article, four different combustion bowls were designed based on the keen literature survey for a single-cylinder diesel engine with 20% Cymbopogon flexuosus biofuel and 20% diesel fuel.
64 citations
01 Nov 2017
TL;DR: In this article, the authors analyzed the change in performance characteristics when partially stabilised zirconia (PSZ) was used as a thermal barrier coating in the combustion chamber, with emulsified fuel.
Abstract: The aim of experimental investigation is to analyze the change in performance characteristics when Partially Stabilized Zirconia (PSZ) was used as a thermal barrier coating in the combustion chamber, with emulsified fuel. Sorbitan mono elate (span 80) and PEG 20 sorbitan monooleate (tween 80) were used as the surfactants to form an emulsified fuel with diesel and water. Diesel, water and surfactants were taken in a flask; continuous stirring was done at a speed of 1000 rpm. The stability of the emulsified fuel has been checked for 8 hours for separation. It was observed that a remarkable improvement in brake thermal efficiency and specific fuel consumption. The results of the experiment proved that PSZ would be used as a performance improver as it retains the combustion temperature and increases the efficiency to a significant level.