I kinda puzzle. I read article about Lysholm screw-type expander have 94% efficiency.
What that efficiency represent?
Let say Carnot efficiency will be calculates at 56%, does this mean that the Lysholm expander can deliver up to 94% of the calculated Carnot efficiency? So it mean that such...
I just read two article about steam car developments in pass and in there both authors getting to very similar conclusion: steam car can be good option for future car if today advance technology can be used. I believe at list one author read the other paper. However, the case is pretty strong...
I wonder is the multiple expansion that is used in steam engine to improve efficiency can be apply to internal combustion engine.
I thought that the first cylinder will work exactly in the same way as it work in Otto or Diesel, the exhaust will go to second cylinder to do second expansion. The...
Last two weeks was very fascinating. I read about some old developments of steam engine for cars. It it is very interesting what was develop on the first part of 20 century. The Doble brothers (specially Abner Doble) did amazing job on steam power car that even today, after 80 years, did not...
I wonder if it is possible to build hybrid convention kit for existing cars that will use of the shell components.
The basic requirements.
From this what I read the car need around 200W per mile for normal size car (not exally sure what normal size car is in that matter), that mean it will...
hat might be trivial question.
I wonder why in air conditioning system, in most cases, it cool the colder air from inside the room, even thought the air conditioner (the heat pump) have the highest efficiency if the air feed ed in to it has as high as possible temperature, or the differential...
I just wonder if Bourke Engine a hidden Atkinson cycle?
According to the people that make temperature measurement of exhaust on existing Bourke prototype, the temperature is around 200F (see the thread71-98313).
That may suggest that it might be Atkinson cycle with shorter compression and...
What is theoretical efficiency and practical efficiency of infrared photocell.
I know that solar panels operate with efficiency from 5% to something like 35% at best, due to pure response over wide light spectrum.
Does the photocell for infrared radiation only have higher efficiency?
Are there...
For some reason I can't believe that the room (portable) AC are not properly design.
Since I come to US 17 years ego , I always question the way how the air stream in AC is directed (always or most of the time) to the ceiling instead of to the floor.
The natural thing for cold air is to flow...
12 years ego I patented idea that modified the way how the fuel is injected in to combustion chamber in diesel engine.
I do not see that the potential investor tray to get thru doors and widows to get this idea in production, so here it is...
I wonder what is the efficiency loss for diesel and Otto engine in terms of mechanics and inability to cum bust fast enough the fuel.
I can calculate the absolute thermal efficiency, let say diesel engine with with compression 45 to be around 78%. The real efficiency (I read somewhere) is around...
