because they're only efficient in a hyper narrow bandwidth, outside of which they're extremely inefficient.
Turbines are a series of blades that sequentially vary to optimally be acted on by the fuel/combustion/steam. You have to design turbines for the specific expansion/behaviour of your gas at specific output under specific conditions. Outside of that, the blade design won't line up with the properties of your gas at that stage of the turbine, and your efficiency sinks like a rock.
This is why turbines are optimally set up to run under specific conditions at the same output forever, as they can be kept in that ideal goldylocks zone as they were designed to, with no such luxury in a vehicle. In trains, not only will the output and outside conditions vary wildly, but so will the load on the thing, even at the same power output at a different speed. Although theoretically you could keep them at a swell zone and dump the surplus energy out as heat like dynamic braking, but that's sort of a 3 step solution to a 1 step problem, when deisel or steam can do the same work way more reliably without having to be danced around like that.
https://upload.wikimedia.org/wikipedia/commons/e/e5/Union_Pacific_18.jpg
The only successful turbine was the GTELs. But they sucked up fuel like it was going out of style, and were more expensive to buy and operate than the "obsolete" big boys they replaced, for roughly the same amount of work done.
That's the other big problem with turbines - they're way, way more complex to build and maintain than diesel engines. That's why you see literally thousands of EMD 567's and 645's still chugging just fine, because they're dead simple.
Like literally one of the locomotives my buddy works on is from 1952 and hasn't had a major engine overhaul since it was built. Still in revenue service.
They're not more efficient than diesel engines. The best gas turbines get about 45% (and only very recently) compared to the 50% diesels get.
I'm talking specifically about rail/vehicle use. Good luck fitting a condenser system into a car.
That doesn't change the fact they don't beat out diesel in single cycle in any instance. Also pretty much every turbine uses movable vanes these days.
Just gonna fetishize some industrial design; no particular reason.
https://files.facepunch.com/forum/upload/302754/18d389f0-0ef1-42c4-8265-12443a62c9e1/1983_Olivetti_ET111_001.jpg
https://files.facepunch.com/forum/upload/302754/43289e44-e663-4b8f-ac56-06ad41a23067/praxis45d-0.jpg
https://files.facepunch.com/forum/upload/302754/7218742a-e519-4cbe-8766-0c0b39ec4630/praxis_20_ei_noa_img_0973_iso.jpg
https://files.facepunch.com/forum/upload/302754/dc1ffa3b-1dc1-4849-8d98-00dce899a7d8/Olis Etc 106.JPG
https://files.facepunch.com/forum/upload/302754/c423895d-7a29-40c0-9d67-209841954ca0/download (66).jpg
https://files.facepunch.com/forum/upload/302754/89505260-6cb6-434c-b0d1-7fcc92f62ce7/PRAXIS35_05.jpg
https://files.facepunch.com/forum/upload/302754/e6397f39-bb13-407e-a1d4-205bbbd9c5ae/PRAXIS35_02.jpg
https://files.facepunch.com/forum/upload/302754/eb3a5fbd-c3f0-494a-90be-0db7a36dacb5/dieter-rams1.jpg
I am an absolute sucker for 1970s-80s hi-fi equipment
https://files.facepunch.com/forum/upload/236860/c158a732-2b10-43f5-9df4-99a5772fe7af/image.png
https://files.facepunch.com/forum/upload/236860/0d861c71-e832-4ad7-94cf-13dcff5a918c/image.png
The Central Social Institution of Prague in 1937.
https://files.facepunch.com/forum/upload/225353/34924cf8-98e7-480c-8906-1063a354ef76/central.jpg
https://farm8.staticflickr.com/7340/16359094625_bc3edef435_b.jpg
All sizes --- Album --- Video
You like typewriters? Took this on a visit to a National Trust property whilst on my honeymoon last week.
https://files.facepunch.com/forum/upload/237864/a69e71bc-82bc-46bc-9e6a-05b8b1c091c6/Typewriter.jpg
Brutalism can be beautiful.
https://files.facepunch.com/forum/upload/290401/f7492cb4-89fd-4dd2-963c-8f11545fbd3e/ol31-2.png
inherited it and don't use it much but it sure is a fun and cheerful looking little model. it's "portable" (weighs like 10lb/4-5 kilos) and has a neat little case so i don't have to leave it on my desk and look like some woke ass dipshit.
https://files.facepunch.com/forum/upload/110042/d6f8fb40-398b-4060-908d-262d6dbc87ce/1552699694753.png
This is a failed physical movie rental service where you dont have to return the disc. 48 hours after you remove the DVD from its airtight seal it reacts to oxygen and turn black, rendering it unreadable.
What an astonishing waste of materials, my goodness
Victoria, princess of Sweden and heir of the throne, visited SOG:
https://files.facepunch.com/forum/upload/1829/d94156c0-2e78-4b32-9126-7ff5044aa74c/image.png
https://files.facepunch.com/forum/upload/1829/8315ff97-f827-424e-9365-9eaf1aeb982b/image.png
https://files.facepunch.com/forum/upload/1829/49567f69-ed17-4af3-a493-48e36ca1ffcb/image.png
Incase anyone wonders: yes, she has combat training and often makes visits like this. Prince Carl Philip also makes military visits with him being a former marine.
what an unfortunate blur
https://files.facepunch.com/forum/upload/189448/c6f059f1-63a7-433a-a401-d9d9f7d40071/D68DF82F-E1E1-4B73-B932-6B188ED5812B.jpeg
perhaps its some sort of attachment that they don't desire to showcase to the world?
Or, boner
https://files.facepunch.com/forum/upload/110097/98bcc3c0-d5dd-4ed1-9967-fff3d9962ddb/image.png
One of the many watercolor paintings present within Henry Darger's 15,145 page fantasy manuscript The Story of the Vivian Girls, in What Is Known as the Realms of the Unreal, of the Glandeco-Angelinian War Storm, Caused by the Child Slave Rebellion.
The course of Empire is one of my favourite painting I've found recently. Shows the progress of an empire and then the destruction. I always loved these epic looking artworks.
https://upload.wikimedia.org/wikipedia/commons/5/5b/Cole_Thomas_The_Course_of_Empire_The_Savage_State_1836.jpg
https://upload.wikimedia.org/wikipedia/commons/8/8c/Cole_Thomas_The_Course_of_Empire_The_Arcadian_or_Pastoral_State_1836.jpg
https://upload.wikimedia.org/wikipedia/commons/1/1a/Cole_Thomas_The_Consummation_The_Course_of_the_Empire_1836.jpg
https://upload.wikimedia.org/wikipedia/commons/6/64/Cole_Thomas_The_Course_of_Empire_Destruction_1836.jpg
https://upload.wikimedia.org/wikipedia/commons/7/77/Cole_Thomas_The_Course_of_Empire_Desolation_1836.jpg