Go Back   EcoModder Forum > EcoModding > General Efficiency Discussion
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-25-2021, 03:59 PM   #31 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: Tampa, FL
Posts: 1,745

Volt, gas only - '12 Chevrolet Volt Premium
90 day: 38.02 mpg (US)

Volt, electric only - '12 Chevrolet Volt Premium
90 day: 132.26 mpg (US)

Yukon Denali Hybrid - '12 GMC Yukon Denali Hybrid
90 day: 21.48 mpg (US)
Thanks: 206
Thanked 420 Times in 302 Posts
Quote:
Originally Posted by JSH View Post
That has been the natural gas industry's statement for decades. To date it hasn't happened.
That's true, but the shipping(ocean and rail) industry will move to LNG which will drive the price/technology/packaging to the point that it will become attractive to the trucking industry also.

__________________




  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 09-26-2021, 12:45 AM   #32 (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 ksa8907 View Post
That's true, but the shipping(ocean and rail) industry will move to LNG which will drive the price/technology/packaging to the point that it will become attractive to the trucking industry also.
LNG seems to make more sense for ocean shipping than for terrestrial applications. Many ports nowadays have re-gasifiying stations to receive LNG imported usually from Malaysia, and feed it to NG pipelines.
  Reply With Quote
Old 09-27-2021, 02:17 PM   #33 (permalink)
JSH
AKA - Jason
 
JSH's Avatar
 
Join Date: May 2009
Location: PDX
Posts: 3,479

Adventure Seeker - '04 Chevy Astro - Campervan
90 day: 17.3 mpg (US)
Thanks: 305
Thanked 2,051 Times in 1,385 Posts
Quote:
Originally Posted by ksa8907 View Post
That's true, but the shipping(ocean and rail) industry will move to LNG which will drive the price/technology/packaging to the point that it will become attractive to the trucking industry also.
Moving giant oceangoing ships to LNG isn't going to help transfer Class 6-8 trucks to LNG. The problem isn't technical - we have technical solutions that work today. The problem is economics and logistics.

CNG and LNG trucks cost more than a diesel truck - a lot more. That isn't going to change without a huge increase in volume to bring down the cost of the tanks. They require less maintenance and the fuel is cheaper - sometimes. That variation is the price of natural gas vs diesel is a problem if you want someone to spend tens of thousands more upfront to save over the long run.

Then there is fueling. Right now long-haul CNG and LNG is mainly done by large fleets like UPS or FED EX that have installed their own fueling stations.

Where natural gas trucks make the most sense is local routes were trucks come back to the same depot every day. These are also generally city routes were the decreased emissions make the biggest difference. The problem for NG on local routes is competition from electric trucks. The have the same economics: higher purchase price in exchange for lower fuel cost and maintenance.
  Reply With Quote
Old 09-28-2021, 02:16 AM   #34 (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
Even though Scania has recently switched its focus from compression-ignition ethanol engines to spark-ignition NG engines, mostly with CNG which is readily available in more regions than LNG, most of the long-haul trucks I have seen with a CNG fuel system in my country relied on it as a supplemental injection and retained the ability to run on Diesel fuel. The last time I remember seeing a dedicated-CNG truck, it was an Iveco in 2014.
  Reply With Quote
Old 11-12-2021, 12:01 AM   #35 (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
When it comes to a simpler engine, one of the examples that I usually remember is the 447cc air-and-oil cooled Honda parallel-twin. No wonder once in a while I still see beauties like this '86 Honda CB 450.

  Reply With Quote
Reply  Post New Thread


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