摘要: |
The M/V OSKI, a passenger only 12 knot ferry operated by Blue & Gold Fleet on San Francisco Bay, California, was tested for diesel engine emissions from August, 2001 until April, 2002 to determine the levels of engine emissions using normal off road diesel, 0.05% sulfur diesel, 20% and 100% soybean based biofuel. The tests were conducted on the starboard main engine underway, with and without water injection into the air inlet stream. At the conclusion of the waterborne tests a dynamometer test was conducted on the starboard engine, which had been recently removed and replaced with a low NOx engine. The following results were observed for engine operation at nearly full power. Partial RPMs produced similar results at a rate proportional to the percent of RPM except that CO was inversely proportional. |