Effectiveness of catalytic converters on older cars on New Zealand roads

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Bakmeedeniya, Anura
Chand, Prabhat
Kudin, Roman

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Date

2021-12

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Conference Contribution - Oral Presentation

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New Zealand
catalytic converters
vehicle exhaust systems
automotive vehicles
environmental remediation

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Bakmeedeniya, A., Chand, P., & Kudin, R. (2021, December). Effectiveness of catalytic converters on older cars on New Zealand roads. Paper presented at the MIT-Unitec Research Symposium 2021 Rangahau Horonuku Hou - New Reserch Landscape, Online.

Abstract

RESEARCH RATIONALE  Road transport is one of the major contributors to the environmental pollution.  There are many sources and types of substances emitted by road transport, but for the vehicles with the internal combustion engine the main source of pollution is the tail-pipe exhaust emissions.  A catalytic converter is the most common and efficient method to mitigate exhaust tail-pipe emissions.  The efficiency of a catalytic converter can deteriorate with time and car’s mileage.  In the countries with aging car fleets, without a compulsory, periodic and metered in-service emissions testing (like NZ), such deterioration can further increase the environmental pollution.  This short presentation discusses the results of a pilot test performed at Unitec to evaluate the efficiency of catalytic converters on older cars in New Zealand.

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