Recent content by lee123456789

I just want to check my comments i made, if it makes sense before i submit Summery statement I've made Otto and Diesel both have practical and theory cycles whereas carnot has only theoretical cycle. If heat engines where running the theory cycles of Otto and Diesel, there would higher...

comparing otto vs diesel in heat engine, if deisel has higher thermal efficiency and work done would that mean it has high mechanical efficiency.

What is ideal heat engine. The ideal bit got me. In the question am I just comparing mechanical efficency and thermal efficiency.

ive written about mechanical and thermal effiency for both. the ideal engine bit and relative efficency got me. every other question specifically said mechanical and thermal efficency

Hi, i have this question and don't understand it. can somebody explain what i have to do. i know a ideal engine is a engine running on carnot cycle i what the cycles are i don't know what relative efficiency is and what there looking for (Q) Review the relative efficiency of ideal heat engines...

Evaluate 2-stroke & 4-stroke Diesel engines performance in terms of thermal & mechanical effiniecy HAs anybody got any links. all i can find is for petrol (2-stroke and 4-stroke). Is what i got so far any good?Thermal In a 2-stroke power stroke compared to a 4-stroke power stroke thermal...

Thank u and sorry for being that dang at it Diagram helped.

Sorry could u layout the strokes eg 1 to 2 to 3. Sorry for being thick.1 to 2 to 3 I take, compression stroke and ignition. 3 to 4 to 1. Power stroke, heat rejection and exhaust.

I think this is it 0 to 1 to 2 to 3 compression stroke - included intake phase, compression stroke and ignition phase. 3 to 4 to 5 to 0 power stroke - includes power stroke, heat rejection, and exhaust phase

I think this would be the sequence of 2 stroke 0 to 1 intake phase 1 to 2 compression stroke 2 to 3 ignition phase 3 to 4 expansion stroke 4 to 5 heat rejection phase 5 to 0 exhaust phase

There would just be a compression stroke and expansion stroke and the exhaust would be in included in the compression stroke and intake would be included in compression stroke?

would 2 -3 be ignition phase and 4 - 5 would heat rejection? 0 - 1 Intake Stroke? 5 - 0 Exhaust Stroke?

I was thinking on the diagram stages 1 -2 - 3 compression and 3 -4 - 1 was expansion

ive write about everything just getting confused on the PV diagrams pics to put into the document. i think its otto pv diagram.

Would two stroke spark ignition PV digram be same as 4 stroke spark ignition. both have otto pv diagrams.