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ORTECH <br /> ` ' � • � 3 <br /> , . Emission Control System Evaluation <br /> I <br /> For: City of Decatur <br />' . ' � ♦ calibration of all test ceii and emissions equipment; <br /> ♦ perform engine break-in fo engine manufacturer's specifications; <br />' . • pertorm peak torque and peak power pertonnance checks using neat <br /> diesel tuei and compare to manufacturer's specifications. <br /> 3.2 Tesk 2-Basellne Emission Test <br /> The following preparations wiil be made: <br /> ♦ baseline engine torque curve generated at 8 rpm/sec; <br /> • EPA transient cycle generated tor baseline fuel; � <br /> � optimize engine control coetiicients to enable engine to pass fu11 EPA <br /> regression analysis for cycle performance. . <br /> .The tollowing emissions will be collected: • <br /> • gaseous -CO, CO2, NOx,THC. <br /> � particulate •insoluble and soluble fraction. � <br /> � ♦ aldehydes. . <br /> The emission test sequence would be as tollows: � <br /> � Transient Emission Testinq -Dav 1 <br /> Tunnel conditioning shall be wiihin 24 h�urs ot emissions testinB. , <br /> ' A. Operate�the engine until ihe oil pan temperature reaches 110°F. <br /> � 8. Operate the engine at maximum horsepower!or 5 minutes; verity engine <br /> pertormance and record all pertinent engine parameters at this load- <br /> speed. <br /> C. 20 Minute Soak � . <br /> � • Turn the engine off. <br /> � - Leave the Dilution Tunnel on. <br /> - �isconnect the exhaust at the turbocharger. <br /> � Reconnect the exhaust et the turbochar8er. <br />