Steam effects for diesel locomotives and passenger cars Additional parameter
#1
Posted 28 January 2017 - 03:14 PM
If I missed something about this detail in the manual or on forum, please correct me so.
I remembered the good ol’ days when steam heating was used till electric heating took over.
When talking about steam heating effects, I do not refer strictly to steam locomotives. In the days there were diesel locomotives that had a steam boiler incorporated in order to generate steam for heating the cars and another version when a diesel locomotive did not have such aggregate, there was a steam generation car coupled in order to do the job.
I am aware of that fact that such ideas were created to use in MSTS by adding such effect between couplers but is there a way to avoid this by adding such parameter for the diesel engines and passenger cars?
I remember I tested this long ago in OR (the effect between couplers) but the higher the throttle notch, the bigger the steam effect was.
Cheers!
#2
Posted 28 January 2017 - 08:39 PM
On the Trello board in the Unsorted column there is a thread for Steam generators on diesels, so that's a step in the right direction...
#3
Posted 29 January 2017 - 12:50 PM
I can't say for sure, but I suspect that the British EM2 class locos used for passenger trains on the Manchester to Sheffield electrification would have had a steam heat system, possibly some of the EM1 freight units were also fitted as they were used for passenger trains after the EM2's were sold to the Netherlands.
#4
Posted 29 January 2017 - 02:14 PM
Trains were pre-heated in terminals from a boiler in the station before the locomotive coupled up and connected its steam heat line. So steam heat effects (small plumes) at key points around the platforms (typically near the bumper post for stub-end terminals) would also be appropriate.
Effects would include steam leakage from hose joints, valves, and other release points. One interesting use was for cooling (air conditioning) that could be done with a steam ejector. Effects would be outside-temperature sensitive (can we do that in OR?) with stronger effects when cold and practically vanishing in warm weather, but not particularly throttle-sensitive.
#5
Posted 29 January 2017 - 06:44 PM
Anyway, what I'm getting at is that Steam/HEP generators can add a new rolling-stock compatibility parameter similar to brake and coupling systems. If a consist of steam-heat equipped passenger cars is not coupled to either a steam generator-equipped locomotive or a steam generator car, then the cars will not have steam heat. (Steam was needed for heating wash water, too)
#6
Posted 29 January 2017 - 07:03 PM
#7
Posted 30 January 2017 - 09:48 AM
Hobo, on 29 January 2017 - 07:03 PM, said:
If possible, I would make that depend on temperature (should we ever get that detailed with modeling environments). Below freezing, pretty much all the connections leak a little. At higher temps, you would only notice leaks from, probably, the end of the train and possibly around the steam generator (where line temp and pressure are highest). Unless of course somebody wants to code a .wag as a big leaker to keep your boiler firing hard (or a dynamiter to make train braking interesting...).
The point above about HEP cars ... I've also seen them in the middle of a train, though that might have been temporary due to some recent switching (an obs. car was facing one end of the HEP car) blocking the train for splitting onto separate tracks in Old Sacramento. Commonly used on UP's executive train, which is usually pulled (these days) by freight units.
#8
Posted 04 February 2017 - 06:34 PM
#9
Posted 05 February 2017 - 03:28 PM
If we can classify each of the possible features into one of the following three categories, this may help us:
i) Visual - visible display features only, eg steam leaks
ii) Performance - features which impact the performance of the train, eg load variation
iii) Operational - features which require the player to operate something, turn on/off, turn up/down
HEP and The Steam Generator are two separate functions, each with a number of different features which can be classified with the above categories.
The coding of a full HEP or steam generator may not be worth the effort, however implementing a selected set of features of each might be easy enough to code and worth the effort.
For example, it may be easy enough to simulate water and fuel usage to vary the wagon physics, rather thentrying to code the full generator function. Implementing operating features may actually be a distraction to the player.
Based upon the discussion so far, how would each of the features rate?
#10
Posted 05 February 2017 - 09:09 PM
I would like to see a limited set of functions to provide for steam heat on diesel and pure electrics.
I might be able to find a couple of documents from the manufactures of the North American and British steam heat boilers if that would be of some value in figuring out how they work?
Robert