Recent content by BenC1994

That's great, with a,b,c,d, complete, So onto part e) thanks for the information provided, I need 143.307 kg of oil per hour (kg/hr) 1 litre of fresh water is 1kg So 1 litre of this oil is 0.85kg So, 143.307/0.85 = 168.596 (what units would this be?) 168.596 x £1.85 = 311.90 £ per hour...

So you're saying that, Steam h = 3018.12 kJ/kg Fw h = 209.3 kJ/kg Therefore 3018.12 - 209.3 = 2808.82 kJ/kg Therefore 2808.82 x 1500 = 4213230 kJ/hr This seems a very odd figure... I then assumed for part d, Boiler efficiency = heat absorbed by steam/heat added by steam So 0.7 =...

I have attempted something but not being the greatest at steam calculations I have been confused at a probably easy question. Up to now I have Steam h = 3018.12 kJ/kg Fw h = 230 kJ/kg For a 235 c temperature rise it it obvious that 3018.12 - 230 = 2788.12 kJ/kg Then I thought 2788.12...

New to this haha will bear it in mind next time

https://www.physicsforums.com/index.php?threads/812972/

Homework Statement See image attached, have completed the parts a and b using steam tables and interpolation and got the answers a) Wet steam h at 10.5 bar: h = 2378 kj/kg b) Superheated steam at 10.5 bar @ 285 Degrees Celsius: h = 3018.12 kj/kg Which I believe to be correct now, parts c,d...

Ah I see my mistake with the answer now, 1050kpa would be 10.5 bar not 1.5 Bar 1.5 bar is 1.5x10^5 pa or n/m^2 Will correct mistake, input correct figures for h and include a better image...

Homework Statement This is from a practice mechanical science exam for HNC engineering. See attachment for the question sheet off a practice exam. I have no idea how to do this after the a and b parts and my answers for which are below the question (underlined), any suggestions or solutions...

Ah thanks for that, much appreciated! Knew I was missing something.

Little bit stuck with this practice question for my exams, how do they suppose I work out the length of the individual beams or height of the framework without an initial length? Is there a secret way I've never heard of? Any help would be appreciated, it's foundation degree level but probably...