This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Design of Radiators for Low Flow Cooling Systems
Annotation ability available
Sector:
Language:
English
Abstract
There has been a recent surge of interest in low flow engine cooling systems. In such systems, a relatively low flow of coolant, compared to conventional engine cooling systems, is subject to a relatively large temperature drop through the radiator. The resulting low temperature coolant is used to cool the engine's turbocharger intercooler in order to provide lower intake manifold temperatures, which result in higher power, better fuel economy, improved emissions and extended engine life. The performance requirements for low flow radiators have required innovative new designs from the radiator industry. While there are many similarities between low flow and conventional high flow radiators, the differences are significant, and include the need for multipass coolant circuitry, sealed tank baffles, deaeration bleed valves, auxiliary fill ports, tube turbulation and high strength tube to header joints. Design considerations regarding these features are discussed and performance of a typical low flow radiator is described.
Recommended Content
Technical Paper | Economical Engine Cooling System |
Technical Paper | A Model Predictive Approach to Avoid Coolant After-Boiling in ICE |
Ground Vehicle Standard | Test Method for Determining Power Consumption of Cooling Fan Drive Systems |
Citation
Crook, R. and Ju-Ger, J., "Design of Radiators for Low Flow Cooling Systems," SAE Technical Paper 851472, 1985, https://doi.org/10.4271/851472.Also In
References
- Nutt R. A. Poehlman R. F. “Cooling System Requirements for Advanced Diesel Engines.” SAE Paper No. 820984 September 1982
- Bond Geoffrey Brooks Robert M. “Selection of the Optimized Aftercooling System for Cummins Premium Diesel Engines.” SAE Paper No. 841023 August 1984
- Davidson Scott D. “On-Highway Performance Evaluation of a Cummins Diesel Engine Featuring Optimized Charge Air Cooling.” SAE Paper No. 840996 August 1984
- Cummins Engine Company, Inc. “Low Flow Cooling Familiarization” 1984
- Kays W. M. London A. I. “Compact Heat Exchangers” Third McGraw Hill Book Co. 1984
- Baumeister Theodor “Marks’ Standard Handbook for Mechanical Engineers” Eighth McGraw-Hill Book Co. 1978 4 12 4 19