Many a time, we require
multiple line curves. This is required to show the variation of one parameter against
the other. If you show graphically, it is always easily intelligible to others.
Once you learn how to do this, you can apply it for your research work. I
learned it from my teacher in masters. Each and every time, I use it, I say
thanks to my guide.
Let us consider, we are testing four fuels in
a diesel engine such as diesel, BD1, BD2, and BD3 against various load
conditions such as 5, 10, 15, and 20 kg respectively. Now, you are asked to
draw a curve of brake thermal efficiency (BTE) (or you may say any parameter) versus
load (or you can say against any parameter) curves for these fuels when
utilized in the diesel engine. First of all, you need to know how to open excel
sheet!!! Then what is the steps you need to follow are given step by step in
the video. https://youtu.be/ZIbO1Skfkc4
