Rear Axle Heat Exchanger - Utilization of Engine Coolant for Reduced CO 2 Emissions and Fuel Consumption

Event
WCX SAE World Congress Experience
Authors Abstract
Content
This paper describes the design, development, and operation of a rear axle dual-shell heat exchanger on the RAM 1500 Light Duty truck. This system has been proven to increase fuel economy and reduce exhaust emissions, particularly CO2, on the EPA Cold City schedule. The energy conversion strategy was first explored using math modeling. A PUGH analysis associated with concept selection is included. To refine the hardware and develop a control strategy prior to testing, a portable flow cart was developed to assess system performance and to correlate the multi-node heat transfer model. Bench testing focused on the durability and functional aspects of integrating the dual-shell axle cover with the axle and coolant delivery system through a comprehensive design and validation plan. Vehicle testing included various fuel economy and emissions related driving schedules to quantify the benefits.
Meta TagsDetails
DOI
https://doi.org/10.4271/2020-01-1411
Pages
15
Citation
Schumaier, T., Bartlett, M., Laugen, A., Scott, T. et al., "Rear Axle Heat Exchanger - Utilization of Engine Coolant for Reduced CO 2 Emissions and Fuel Consumption," SAE Int. J. Adv. & Curr. Prac. in Mobility 2(6):3532-3546, 2020, https://doi.org/10.4271/2020-01-1411.
Additional Details
Publisher
Published
Apr 14, 2020
Product Code
2020-01-1411
Content Type
Journal Article
Language
English