Recent content by royp

Dear All, Many thanks for all your valuable insights shared and I am also grateful for the clarifications. Best wishes...

Hi, I recently read the following article on BBC online: "Revealed: Huge gas flaring emissions never reported (https://www.bbc.co.uk/news/science-environment-62917498)". Can they not use the ‘waste’ gas from flaring to generate electricity? Is it not feasible or economically viable? Do they...

Many thanks, Ranger Mike for a very detailed and thorough explanation! And same to you, Mark44 for highlighting the unusual case for the motor cycle!

Hi @jack action, Many thanks for sending the brilliant link. Very insightful!

Many thanks for your reply, @jrmichler. The pointers were very helpful!

Hi, This post is about a 4-piston, 4 stroke internal combustion engine(ICE).Here is an youtube animation for such an engine. I actually have 2 questions. Q1: We have seen in demos and videos that in a 4-piston (ICE) engine, the pistons P1 ,P4 (pair 1) and P2, P3 (pair 2) are in phase when...

Hi, Here is a question - somewhat futuristic and at the moment, hypothetical. How difficult will it be to build a 'hybrid' Jet (turbofan) engine? The engine should be able to handle both Kerosene and (gaseous) Hydrogen as fuel. After burning the kerosene for a while, Hydrogen will take over as...

Many thanks for your reply, DaveE. I read the reply in my email but did not see in this thread. In this connection, I would like to ask something related. I had a chat recently with a friend. They need to use a large fan (15 Kw motor) for circulation/cooling purposes and curious to know...

Many thanks, sophiecentaur; for an absolutely spot on and clear explanation. With my limited knowledge of electronics, It helped enormously!

Hello, I have this question whether it will be possible to generate electricity by heating up a suitable metal (conductor). We know from the photoelectric effect that high energy photons (of visible light; probably with frequency closer to that of violet) can knock off the outer electrons from...

Thanks, mfb. The propeller is part of the setup. Though I replied earlier to jrmichler to illustrate my question with diagrams, I want, nonetheless, to continue with the momentum at the moment. My understanding is: the prop will push the air forward to get the propulsion (somewhat like an...

Thanks, jrmichler . I will come back with a proper diagram.

This is about the famous, classic experiment of Magdeburg hemispheres with the Wikipedia link below: https://en.wikipedia.org/wiki/Magdeburg_hemispheres. "The experiment was designed to demonstrate the vacuum pump invented by Otto von Guericke - but also the tremendous 'strength' of the...

Many thanks, hutchphd for suggesting electric RC aircrafts. I was not very aware of them and have been going through. They are quite powerful but probably limited by the battery. As regards to the axial vs. radial, I have a feeling (based on the literature) that raidals can 'pack' more suction...

Many thanks, Rive - for the valuable suggestion!