Homework Statement
In a particular application, the generator output is converted to DC and used to power an immersion element for water heating.
1). Sketch the shape of the output voltage at a rotation speed of 300 rpm assuming the amplitude on each phase is 30V?
The Attempt at a...
Thanks for the advice. I have made another attempt.
Area = 10x10
= 100cm2 or 10000mm2
E = Force applied x original length/area of cross section x change in length
= 1700 x 100/10000 x 0.17
= 100 Mpa
Not sure where I should use slope of straight line calculation.
Hello, having some problems with calculating young's modulus, please help.
[b]1. A Strain gauge records the following strain when a block of material is pulled:
Force(N) Strain(%)
100 0.01
1000 0.1
2000 0.179
3100 0.9
Area of block =...
Thanks for your help tiny-tim.
I have made another attempt at the problem:
Primary energy consumed in 1 year: 400h*53.75kw=21.5MWh
Energy supplied to 95% efficient batteries: 21.5 x 100/20 x 100/95 = 113.2MWh
For 300 miles: 300/10000*113.2=3.4MWh
Hey, thanks for the quick response.
I have attempted part b) and would be grateful for any feedback.
Primary energy consumes in 1 year: 300h*53.75kw=16.1MWh
Energy into 20% efficient motor: 21.5MWh/20%=80.5MWh
Energy supplied to 95% efficient batteries: 80.5MWh\95%=84.7MWh
Many thanks
Hi everyone!
I am having a bit of a problem solving the following question, and would be very grateful for any advice given.
1. Homework Statement
A car is run for 400 hours per year, with a total mileage of 10,000 a year. The car uses diesel and consumes 2,000 litres per year. A...
Hi everyone!
I am having a bit of a problem solving the following question (not good with maths), and would be very grateful for any advice given.
Homework Statement
A car is run for 400 hours per year, with a total mileage of 10,000 a year. The car uses diesel and consumes 2,000...