Homework Statement
A car is travelling up a slope. Given that a(t) is constant at 1m/s^2, find the expression of motor power in time. Assuming that the maximum power of the car is 215kW, for how long can the car maintain such an acceleration?
Mass of car (m) = 2000 kg
The hill has a constant...
i need to select the motor for a roller of Diameter 300mm , length 1350mm having inertia 3.95 KG.M ,Which needs to accelerate from 0 to 600MPM at 20 sec . Assuming existing web tension acting on the roller 20 N/M.
THANK YOU
Hey folks,
I built a generator for fun and I would like to find out how much power it is producing when I use it. I have a way of measuring mechanical power in but I am not quite sure on how to measure electrical power out. I'm thinking I could use some LEDs to create a load (or maybe...
I have to configure a power system for a furnace which demands very high current of the order of 50KAmps with low voltage of the order of 100 volts.
Can anyone help me to get insight into how to configure the power system in boarder way.
I am planning to use a transformer with thyristors .
A 2 stage compressor has a final delivery/discharge pressure of 250 bar.
hydrogen is been compressed and stored in vessels.
The pressure in the storage vessel reaches the delivery pressure(i.e.250 bar) and the compressor is still running ( vessel has a safety pressure of 450 bar) and the...
Hi,
I'm trying to do a very simple analysis on Simulink where I am applying a speed to a Permanent Magnet Synchronous Generator with a purely resistive load.
I'm not familiar with PMSGs so the results I'm getting don't really make any sense to me. Could any one go through some simple design...
Homework Statement
Derive the expression for coefficients of Fourier series in exponential form for the sequence of rectangular pulses (with amplitude A, period T and duration θ) shown in this image:
Derive the expression for signal power depending on the coefficients of Fourier series...
Hello all,
I am designing a lay-person-facing simulation that includes robots performing a broad array of tasks.
I do not want to create magical can-do-anything robots that collapse all work to be performed to a simple abstraction.
Rather, I would like to have relatively dedicated and...
I have a project in which a client is wanting an outside glass deck floor to be heated to keep from freezing. Below the floor is ambient temperatures. The glass is 1.25 ( 3 layers of 3/8" with a /060 inter-layer between each lite of glass) thick each panel is 30" x 60". I don't want to...
Hi All!
I am a Dutch university student and I have an assignment to make a Search & Rescue Robot. Because we have to work with a budget, we have decided to make our own batteries (using AA penlights).
Now while calculating the required capacity of the battery pack, I encountered some...
Hi,
I've defined engine power requirements based on driving dynamics, but am not sure how to extend this to engine parameters. From design requirements, I've fixed my gear ratios, and hence can determine how much power and torque is required from the engine at a particular speed.
I want to then...
Homework Statement
The armature resistance per phase is given as 24.7ohms.
Delta configured machine.
Open circuit voltage is 220v, short circuit current is 1.1A at 3000rpm.
Rpm is dropped to 1500rpm and no load line voltage is 100.
Find power and efficiency if an inductive load of 1.4H is...
I figure my 2.4 liter Volvo will burn about a liter of gasoline over an hour of idling (source: Natural Resources Canada). Since a liter of gasoline contains roughly 33.8 million joules (~9.4 kilowatt-hours) of energy, I figure that that means my car idles at a power output of around 9.4...
Homework Statement
This is not exactly homework, but is homework level so this is probably the best place to ask rather than the more learned sections. However, I'm prepared to defer to your better judgement.
I want to put a web camera inside a foam ball. The camera is a retail product so...
My background is mechanical engineering so not great with the electrical side. I plan on buying a air-preheater (resistive wire heated) which has a power rating of 30kW, supplied by 3-phase. I need to determine whether my 3-phase supply (415V 32A) has a max current that can cope with this. My...
**Long Post**
1. Homework Statement
The Mazda MX5 (2001-2005) comes with two engine sizes, 1.6 litre and 1.8 litre which are rated as 110 bhp and 146 bhp respectively at 6,500 rpm. You are required to choose one of the two engine sizes and analyse the system with a view to improving the power...
Is ohm's law (V=IR) works for both AC and DC. PLz explain in details
Also let me know which formula is right for power calculation for AC and DC circuits. (P=VI or P=VICos)
Hi guys
I have problem, basically I want to measure the power output from a water wheel.
so basically I measured the power output by connecting the pulley that attach on the shaft of the water wheel. then this pulley is connected to other pulley which sit on the shaft of the DC motor.
this DC...
Hallo
Currently I am engaged with my Company's Project and it is about Electric motor as my Knowledge is not that good about Electric motors, I need your help. I want to move 80 kgs of Weight with the speed of 80 km/h with a motor and a 260 mm pulley. The motor is standing vertically and the...