Recent content by Kayne

This sounds easier then it looks, so please bare with me on this explanation So I have taken real measurements off the compressor which were Temperature = 33°C Pressure = 120Psi Can you please explain in a little more detail how to calculate the Mass, and what variables are...

Hi, I was working with my Air compressor today and was wondering if there is a way to calculate the amount of work or energy that is stored within a air tank? The air compressor is a 2.5hp, 112L/m 120Psi and volumes is 40L. From these details can the work be calculated or is more...

Chestermiller, I did not see this reply when I posted my last post so this was not intentional.

I have been doing some more digging and would like to test my theory The molar mass of air is a make up of 21% Oxygen & 78% Nitrogen O_2 = 2\times 16 = 32 g/mol N_2 = 2\times 14 = 28 g/mol Therefore O_2 = 32 g/mol \times 0.21 = 6.7 g/mol N_2 = 28 g/mol \times 0.78 = 21.84 g/mol...

Ok yes you are correct that is volume. Does this mean that the equation is correct?? Put another way if it was 20 Liters of water 20Litre = 20 Kg = 20 000grams then Moles = \frac{20 000}{16 }= 1250 I guess I am trying to get my head around what the weight of air is when compressed into a...

Hi All, I would like to understand a little more about the following equation moles = \frac{Mass(g)}{Molar Mass} I know that this is to calculate the Moles for use in the ideal gas law equation PV=n \times R \times T Lets say I had to find two variable in the ideal gas law...

I have had another look taking into concideration what you have said and the answer is in the attachment. Hopefully someone can let e know if I have done this correctly Cheers

Hi All, Please find the question in the attachment. I would like to know if the intergration I have done is correct. If the intergration is correct I am not sure how to approach the rest of the question. If someone can point me in the right direction to solves this I would appricate...

Hi All, I have been trying to solve a complex number equation for character impedance with MATLAB but it continues to tell me that "indexing must appear last on index addressing". I am new to MATLAB so I think that my code is wrong. What I am using is complex sqrt (R+jwL)(G+jwC)...

Hi Mark44, Thanks for the information it was a little better to understand than what i had in the textbooks. I was able to transform it into the z domain thank

Hi Mark44, This attachment is the question, it has to do with porportional controllers. In this attachment I have put in the tutorial that I have been following. maybe this will help with the changing from C(z) to C(k)

Thanks Mark44 for let me know, it seemed to work on my computer but I have now changed it to a work document so you should be able to see it and the answer I have come up with.

Hi there, In the attachment I have an equation, I have worked though to solve for C(z) which is is highlighted in green. The highlighted yellow equation is what is supposed to look like but I am unsure if I am correct or not. I have tried to used my answer to make a graph for a Proportional...

Thanks for your help I have since worked though and found an answer, whether its correct or not that is another story. If anyone understands Laplace transforms my answers are attached, if you can have a look and see if i am wrong or right, The question I have done is a little different to the...

Hi,I have the equation G(s)=C(s)/M(s)=10e^(ts)/s+3 and I have to find the open loop response c(t) with a unit step which is 1/s The explanation in the Text book is quite confusing, does anyone know if there are easier explanations like worked exampled on the internet so I can work though then...