Big Jim posted:Steve,
I haven't moved the goal post. Most of what you have said trying to defend your position merely defends mine. I also don't understand why you don't see how comparing the injector and feedwater heater is relevant.
The relevence is that each is introducing water to the boiler at about the same temperature. Now, remembering that the Worthington system is an "open" system, the water supplied is near 212° +/-.
Have you ever heard anyone say that water supplied by the FWH is "Cold"? Is your answer No? Me neither.
Have you ever heard that using the FWH to supply the boiler will cause a loss of pressure? Is your answer No again? I haven't.
Now, since both systems are suppying water at the same temperature,Your first fallacy: The injector actually puts water in at about 160 degrees--not the same as a FWH.
why would the injector cause a loss of boiler pressure? Simply, because you have to use steam from where?
The BOILER. Now, remember the old adage..."You don't get something for nothing"? Well, if you had read the pages that I have supplied, you would see one very telling and common point throughout. The injector is very wasteful of steam. In order to provide the boiler with the water necessary, it must use a large amount of steam (that it needs to operate the loco) to heat the water to the velocity that it needs to be forced into the boiler and feed itself. The injector is using valuable steam in order to FEED ITSELF! Now, did I hear "you don't get something for nothing"? Well that "nothing" is a loss of boiler pressure. Have you ever been taking a shower and the wife turns on the washing machine? What happens? You lose pressure in the shower. Hmmm, same effect as using an injector.
Let me address a couple of your statements.
"Why do you think the check valve is placed so far forward on the boiler on most engines? Would the fact that injecting cooler water into the boiler farther away from the firebox will allow that water time to warm up and circulate, instead of shocking the boiler if it's injected right next to the firebox?? Because it's um...200 degrees cooler, and boilers don't like to expand and contract much. You do believe steel can expand and contract when exposed to differences in temperature of 200 degrees, don't you? [Boy! Talk about a sentence moving the goal posts!]
Hmmm, what's good for the goose is good for the gander. Both systems supply water at the same point making this a moot point.And, that leads to the next statement
"When the engine is working the circulation is rapid and the temperatures soon equalize,"
Hmmm, place the check valves forward, that way the circulation, being rapid, will help the temperatures "soon" equalize. Good idea. Again both systems are supplying water at around 200°. "What's good for the goose..."See my reply above. Injectors don't raise the water temperature that high.
So, what we have here is two systems working to accomplish the same thing. The difference being that one has to voraciously feed off of its own self to accomplish the task.
Then we come to this:
"You know how many people have "run" 611? They sell the opportunity to do so. I bet even you could do it!"My only reply to this is, I was getting paid while doing it.
You already know train handling skills. You may think you know about firing. I wish you would have come down when 17 was running. It would have been great fun to watch you fail miserably because of your mistaken presumptions!
I'm really not sure how you can dispute HW, who's fired on some of the most famous engines around, and Sadler, who may have even been firing on the J when you were there.
