Investigation on Transforming of a Fixed Gas Analyser into a Portable Emission Measurement System (PEMS)

Abstract

Recently Portable Emission Measurement System (PEMS) is being used to show the real emission
components of diesel engines (and petrol engines) instead of using test cycles because of their
more realistic measurements. Their drawback is their high price and unavailability. This study
investigates the possibility of transforming a fixed gas analyser that cost approximately RM50,000
into a PEMS. The project was done through the simulation of a program coded using Python to
imitate the functions of a PEMS as close as possible. In the code, it is programmed to calculate
emission from a diesel-based vehicle, based on the changes of the Torque and RPM. Simulation
of the code uses data from a research paper reviewed. The difference of the project simulation and
the research paper data is 6.32%. It is concluded there is a possibility as the code was able to be
validated.