On the Utility of Ammonia Sensors for Diesel Emissions Control

2022-01-0549

03/29/2022

Features
Event
WCX SAE World Congress Experience
Authors Abstract
Content
This paper analyzes the use of an ammonia sensor for feedback control in diesel exhaust systems. We build our case around the specific example of the heavy duty transient cycle, and an exhaust system with an SCR catalyst, a single urea injector and an upstream and downstream NOx sensor. A key component in our analysis is the inclusion of the tolerance of the ammonia sensor. We show that with the current understanding of the sensor tolerance, the ammonia sensor has limited benefit for controls.
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DOI
https://doi.org/10.4271/2022-01-0549
Pages
7
Citation
Van Nieuwstadt, M., "On the Utility of Ammonia Sensors for Diesel Emissions Control," SAE Technical Paper 2022-01-0549, 2022, https://doi.org/10.4271/2022-01-0549.
Additional Details
Publisher
Published
Mar 29, 2022
Product Code
2022-01-0549
Content Type
Technical Paper
Language
English