Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-15-2021, 11:55 PM   #21 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,548
Thanks: 0
Thanked 1,622 Times in 1,447 Posts
Quote:
Originally Posted by Isaac Zachary View Post
The main reason for using diesel fueled HC-SCR is it means you only have to fill up (or fuel up) with one kind of liquid making it more convenient.
Way more convenient. But I remember something about attempts to use ethanol for HC-SCR, yet it still would make more sense to use it on a supplemental injection, which could decrease the NOx formation at the combustion process.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 12-18-2021, 04:07 AM   #22 (permalink)
High Altitude Hybrid
 
Join Date: Dec 2020
Location: Gunnison, CO
Posts: 1,953

Avalon - '13 Toyota Avalon HV
90 day: 40.45 mpg (US)

Prius - '06 Toyota Prius
Thanks: 1,035
Thanked 538 Times in 432 Posts
Getting off topic here, but a diesel exhaust improver that I like, although full of technological hurdles to overcome, is emuslified diesel and water. It's the only method I know of that both reduces NOx and PM at the same time.
__________________
  Reply With Quote
Old 12-18-2021, 09:19 PM   #23 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,548
Thanks: 0
Thanked 1,622 Times in 1,447 Posts
Quote:
Originally Posted by Isaac Zachary View Post
Getting off topic here, but a diesel exhaust improver that I like, although full of technological hurdles to overcome, is emuslified diesel and water. It's the only method I know of that both reduces NOx and PM at the same time.
I'm only aware of supplemental water + alcohol injection.
  Reply With Quote
Old 12-24-2021, 09:35 AM   #24 (permalink)
EcoModding Lurker
 
Join Date: Sep 2010
Location: Florida
Posts: 30
Thanks: 0
Thanked 4 Times in 4 Posts
To the OP: look at what big rigs do; they will try anything to save money. And check the Renault re20 turbo formula 1 engine. A well crafted equal header exhaust manifold ending on a divided turbine housing will increase spoolup speeds, but the question is always by how much. There is a diminishing return point: the Renault one is much further than yours as a 1s difference in acceleration may win a race. Mercedes has log manifolds in its AMG cars.

Also, check the technical session of https://www.theturboforums.com; there are people there with years working at real companies building intake and exhaust systems. You may find out you will need to start with what is your goal; to accomplish it may require spec'ing out a different turbo.
  Reply With Quote
Old 12-24-2021, 01:41 PM   #25 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,548
Thanks: 0
Thanked 1,622 Times in 1,447 Posts
Quote:
Originally Posted by raubvogel View Post
A well crafted equal header exhaust manifold ending on a divided turbine housing will increase spoolup speeds, but the question is always by how much.
Twin-scroll turbochargers are not so uncommon, yet dividing a split turbine housing is something I have never seen.

  Reply With Quote
Reply  Post New Thread


Tags
diesel, equal length headers, turbo

Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com