This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
UDM Tip Temperature Control Using Thermosyphon Effect
Technical Paper
2020-28-0040
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In today’s automobile industry where BS6 emission is posing a high challenge for aggregate development, cost control and with limited timeline. The main target is to provide the cooling system to have less impact on the in terms of cost, weight and to meet the challenging engineering requirement. Thus, the frugal engineering comes into the picture. This paper shows the application of thermosyphon principle for UDM injector cooling thereby reducing the rotation parts and power consumption such as an electric pump.
Thermosyphon is a method of passive heat exchange and is based on natural convection, which circulates a fluid without the necessity of a mechanical or electric pump. The natural convection of the liquid commences when heat transfer to the liquid gives rise to a temperature difference from one side of the loop to the other.
The Flow through the UDM is maintained by changing Temperature (hence density) of the fluid at one end using the forced convection and hence facilitates for effective thermosyphon. The main objective of the UDM cooling is to keep the injector tip temperature under control (i.e. <120 °C [9]) during all RWUP running condition with regeneration and service regeneration followed by hot-shutoff [8].
Authors
Topic
Citation
Solomon, S., Thiyagarajan, R., and Khan, P., "UDM Tip Temperature Control Using Thermosyphon Effect," SAE Technical Paper 2020-28-0040, 2020, https://doi.org/10.4271/2020-28-0040.Also In
References
- Carlo , N. and Adriano , G. Development of Cooling Characteristics of Urea-Water Solution Dosing Modules for Automotive SCR Systems SAE Technical Paper 2009-24-0156 2009 https://doi.org/10.4271/2009-24-0156
- Jacques , J. , Pauly , T. , Zammit , M. , Ahari , H. et al. Robust SCR Design against Environmental Impacts SAE Technical Paper 2016-01-0954 2016 https://doi.org/10.4271/2016-01-0954
- Grimaldi , C. , Mariani , A. , Osbat , G. , and Magherini , A. Development of Cooling Characteristics of Urea-Water Solution Dosing Modules for Automotive SCR Systems SAE Technical Paper 2009-24-0156 2009 https://doi.org/10.4271/2009-24-0156
- Gaynor , P. , Reid , B. , Hargrave , G. , Lockyer , T. et al. An Experimental Investigation into DEF Dosing Strategies for Heavy Duty Vehicle Applications SAE Int. J. Engines 8 3 1196 1206 2015 https://doi.org/10.4271/2015-01-1028
- Kargilis , A. April 2008
- Bohacz , R.T. November 2007
- Lockwood , E. Cooling Capacity of Automobile Radiators SAE Technical Paper 230012 1923 https://doi.org/10.4271/230012
- M&M Standards
- Bosch