Analysis on Influence of Varying Compression Ratio in Biofuel

2016 ◽  
Vol 852 ◽  
pp. 734-738 ◽  
Author(s):  
D. Yuvarajan ◽  
C. Lokesh ◽  
P. Balaji

In order to reduce the need of petroleum fuels, the prospect of finding the alternative fuel is a primary goal. This work deals with the cause of mustard oil as a possible alternative. The physical and chemical properties of mustard oil are investigated. Using the gas chromatography, the composition of mustard oil is checked. Transesterification process is used for converting the mustard oil into biodiesel. Biodiesel thus formed is converted into bio fuel by the addition of an oxygenated additive (methanol). The current experiment is performed by varying the compression ratio by 16, 17 and 18 using bio fuel which comprises of 80% of mustard oil biodiesel and 20% of methanol in the diesel engine. Emission aspects of bio fuel are investigated. From this experiment it is observed that, by increasing the compression ratio CO and smoke emissions were slightly reduced, whereas HC emission is significantly reduced. However, the emissions of NOx were found to be on higher side.

1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.


2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.


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