Improve FUEL AVERAGE (MPG / KMPL)

Book Description This book gives complete quantitative analysis of fuel consumption due to various factors like rolling resistance, air resistance etc. It gives very clear picture about how exactly mileage varies under different conditions. For better understanding of the subject different method is developed. Also practical simple method is developed to measure fuel consumption accurately in just few hundred meters of running.Large amount of literature is available about factors affecting fuel consumption like rolling resistance, air resistance, engine efficiency etc. But unfortunately neither any text book or any other literature is available for proper understanding of overall scenario at a glance as to how mileage of any vehicle is going to change under different conditions. To fill in this gap, alternate method has been developed for calculating fuel consumption theoretically. This method makes it very easy to understand variation in mileage under different conditions. Also simple practical methods are given in the book for testing the vehicle for different parameters like rolling resistance, air resistance etc. just in few hundred meters of running. Variation in engine efficiency, particularly under part load condition is one of the major factor that affects fuel average. But unfortunately this aspect is not given its due importance.Further, due to continuously changing operating conditions such as speed, gear in which it is operated, acceleration, gradient, braking, idling etc it is extremely difficult to visualize how fuel average changes.Normal testing method of running vehicle over longer distance & measuring fuel average therefore do not give consistent reading. Moreover, it does not help to understand behavioral pattern of fuel average.Therefore for better understanding of the subject, different method is developed. In this method, fuel consumption at constant speed in any gear is measured. For this, method has been developed to measure fuel consumption just in few seconds & in just few hundred meters of running.In each gear, 4/5 readings are taken at different speeds. Similar readings are taken for each gear. These are then shown in graphs for each gear which enable us to understand variation in fuel consumption at a glance.Also for calculating fuel consumption theoretically, alternate method is developed. Salient features of this method are -i.Fuel consumption due to engine friction is accounted separately.ii.Due to above, remaining part of fuel consumption is directly proportional to energy requirement. This simplifies accounting.iii.Calculating energy requirement for overcoming rolling resistance, air resistance etc. is easy as lot of literature is available on this.iv.Once we know the energy requirement, we can calculate fuel consumption simply by multiplying with conversion factor.v.Using above method we can easily calculate fuel consumption for running the vehicle at any given speed in any gear.vi.Also it is possible to calculate fuel consumption due to each factor e.g. rolling resistance, air resistance & engine friction separately.vii.In this method there is no need to account for fuel consumption due to acceleration or gradient.Practical testing methods are also given in the book for measurement of air resistance, rolling resistance & engine friction, just in few minutes without any instruments.