Virtual Instrument Development of Shipping Engine Exhaust Pollutant System Based on LabVIEW

摘要

According to the Annex VI of MARPOL convention established by International Maritime Organization (IMO), who prescribes the indirect measure method of the emission and its testing criterion, this paper presents a calculating program and a kind of virtual instrument as the shipping engine emission test experimental system comprised of laptop, PCMCIA-6024E data collection card, sensors and other components, which is used to acquire, store, analyze and calculate the data collected from the emission of marine diesel engines. The accuracy and stability of the whole DAQ system has been proved satisfactory. The system software has been developed by database and LabVIEW, which offers the system a lot of merits, such as friendly user interface, low cost of development, short development period, and flexible functional-extension, etc. This paper programmed the calculation and analysis program for the experimental data, used the analytical results to check the emission of marine diesel engine to see if it satisfies the demands of the convention. All these works provide warrants to adjust if the international air pollution prevention certification endorsed by governing department can be attained.