Abstract
Exhaust emissions of a diesel engine are considered to be a substantial source of environmental pollution. Diesel engines are mainly used in vehicles and power generation. The usage of diesel engines is unavoidable as they give more power and performance, but at the same time, higher usage of diesel engines leads to increased air pollution, sound pollution, and emissions to the environment. Therefore, various attempts have been made to control the harmful emissions of engines. For this reason, different devices have been made such as catalytic convertors to overcome emission problems and purify the harmful gases. In order to meet these ends, a new system was designed that would contribute to controlling the air pollution of the engines. The system is also known as an aqua silencer, and its design is somehow different but still can be used as a silencer. The newly designed emission controller was installed in a test-bed diesel engine and a total of twenty experiments were conducted with and without the new emission controller at constant speed and at constant load. During these experiments, exhaust gases were analyzed with flue gas analyzers measuring CO2, CO, NO2, NO, and PM. The study concluded that the contaminants of diesel engine exhaust gases were) controlled by the developed emission controller.
Highlights
Internal combustion (IC) engines have become highly imperative in transportation and industry
Measurements were taken in order to compare the emissions of the test bed diesel engine with and without installation of the newly designed system at different loads and different speeds
A total of twenty experiments were performed at constant load and constant speed to observe the behavior of emissions with respect to these parameters
Summary
Internal combustion (IC) engines have become highly imperative in transportation and industry. In [3], the aqua silencer was used in the reduction of toxic gases and noise This experiment gives an effective way to reduce emission gases from the engine exhaust. Aqueous ammonia solution can be used as an absorber for the reduction of CO2, SO2, and NOx from exhaust gases of IC engines. In order to check the system's performance an aqua silencer was directly integrated in the exhaust of the engine and its effects were studied in [6]. The use of a new catalyst converter to replace the noble metals Platinum (Pt), Palladium (Pd), and Rhodium (Rh) has been studied Materials such as zeolite, nickel oxide, and metal oxide have been found to effectively reduce emissions. Aqua silencer covers the effect of black smoke, NOx emissions, and sound from the exhaust gases. After implementing the aqua silencer, the engine tended to Corresponding author: Qadir Bakhsh Jamali www.etasr.com
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