unable to start medium engine

[Chris Solomon]

for reasons i am nol able to discern, i am unable to start new creations with a medium engine. i am pretty sure i have things hooked up correctly, and air pressure seems to be built up on the air intake, and there is a small amount of exhaust, but for whatever reason there is no air being used by the engine. am I missing something?


https://steamcommunity.com/sharedfiles/filedetails/?id=3081639497


I have created a simple tester here:

https://steamcommunity.com/sharedfiles/filedetails/?id=3081640741

just spawn it at any land based workbench

[Anwaan]

It starts and runs fine. Your gearboxes are backwards and the cooling doesn't work, but otherwise it functions fine for me.

[Chris Solomon]

Originally posted by Anwaan:

It starts and runs fine. Your gearboxes are backwards and the cooling doesn't work, but otherwise it functions fine for me.

well, truthfully i built the build above, because the 5x5 liquidc-liquid heat exchanger had stopper working properly. it was getting troublesome to keep on changing things around in a cramped space, so i built that to troubleshoot. but i ran into the air intake issue. still not sure why the cooling is not working properly.

[Chris Solomon]

also the gear boxes are not "backwards". there is no right direction. one direction gives you maximum speed, the other gives maximum torque.

[Anwaan]

They are "backwards" for the scenario you have designed. High torque has very limited application in just about everything other than tugs and heavy, slow haulers. Also, a prop is a terrible load test. You should use a generator or wheel with some brakes applied. Also, your ecm is not working right. Not sure if it's the mess of logic or I just don't understand what your trying to accomplish. Your engine rps is too high. You should aim for around 12 after gearing. A tank of water on the engine side of your cooling loop will help with cooling. You also don't need the pumps and forced air only makes a difference with modular engines.

[Chris Solomon]

the problem seems to be with port a on the liquid-liquid heat exchanger 5z5. flow on the port A is much lower than on port b, and pipes connected to port a do not seems to be able to build any pressure at all

[Anwaan]

I'm not sure what you're trying to accomplish. If it's to cool the engine as you have it set up, a liquid heat exchanger isn't going to work. The only thing worse than the liquid exchangers, are the air exchangers. I won't say it's impossible, but you'll be hard pressed to cool that engine at that output without a seriously overbuilt cooling system. Even if you do, As soon as you put a proper load on it there's a good chance it won't work any more. That's the same reason it's not drawing much air. It doesn't need much to operate without a load. Seriously slap a large generator on there and you'll get better results.

[Chris Solomon]

https://steamcommunity.com/sharedfiles/filedetails/?id=3082591383

if i switch what port A & B are hooked up too, then the flow for the coolant then get gets the increase because it is then hooked up too port B. it does not seem to be an issue of how i have things hooked up. nothing i have tried seems to be able to increase the flow of liquid on port A. oddly, however if i have a gas relief valve hooked up, even though inlet for the coolant (port A) is on the bottom of the boat, there is a lot of gas (air?) flow through the relief valve, but hardly any improvement for the liquid flow on port A

[Chris Solomon]

well, it was working until the most recent series of updates. but now i can't keep the engine cool unless it's at idle.

[Chris Solomon]

shouldn't the flows for both ports A and B be able to flow at the same rates?

[Chris Solomon]

the issue is with the incoming flow from the ocean. i am not sure why, but the flow to/from the ocean is not flowing as it should. there is also more gas (air?) flowing than there should be from the input from the ocean.

here is the build that the engine setup earlier was based off of.
https://steamcommunity.com/sharedfiles/filedetails/?id=3021091154

there should be plenty of flow or at least pressure build up at some point in the line, but there is not. the side servicing the engine seems to be working normally though.

[Anwaan]

The new gasses update has a few things acting different than expected (which is common with this game.) If you read the notes, it's pretty clear most systems are "optimized" for low pressure, not high. It's likely pumps are causing problems now where there was none or where pumps were actually needed before. Remove your pumps and see if anything changes.

[Chris Solomon]

i added the pumps because things were not flowing as they should. having the pumps only very slightly improves the flow for the outside coolant. the engine coolant, on the other hand is running just fine. for some reason even though the input fro the outer coolant is using two large ports on both the input and output, there is hardly any flow. it is very confusing, because it should be working, but it isn't there seems to be more gas flow from a liquid submerged port than there is liquid, which is very weird.

[squam]

have you fixed the issue yet

[Chris Solomon]

no, i have not. there seems to be a flow issue of some sort, but i can not determine what is causing the slowdown. i tried adding in a variable valve and a constant number logic set to .2, but it only marginally improved things. i also tried swapping out the variable with a manual valve, and when closed, the flow, was of course zero, but the pressure started to build. and when i opened the valve, everything rushed out at high flow rates, but that only lasts for second or so/ the flow and pressure goes back to what it was. so it is not like the setup cannot handle the flow and pressure. i can not determine why the pipes are not moving things along as well as well as the other pipes are.

[GrumpyOldMan]

Originally posted by Chris Solomon:

the problem seems to be with port a on the liquid-liquid heat exchanger 5z5. flow on the port A is much lower than on port b, and pipes connected to port a do not seems to be able to build any pressure at all

Make sure the B side connections are connected to the engine, A side to the ocean, otherwise there's no heat exchange happening. Unless this has changed with the space DLC it should be a valid cooling solution just behind the fan radiators in terms of efficiency.