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Marine Equipment

Commercial Fishing Vessels Save Fuel and reduce emissions
Since the beginning of the Summer 2008 (when local marine diesel prices briefly exceeded $5 per gallon), several different types and classes of fishing boats operating out of the Historic Tuna and Sardine Cannery district on Terminal Island adjacent to the Long Beach and L.A. Port Complex have seen fuel savings ranging between 10 and 20% with the heavy-duty grade (HDG) Fitch Fuel Catalyst installed on their main propulsion and generator engines. Several case histories are documented on this page. Other vessel owners from San Diego to Alaska have opted to install the device and others are now considering installing a Fitch unit following the example set by their compatriots in order to reduce operating costs in what has traditionally been a very tough business.
Most commercial fishing vessels such as the purse seiners shown leaving Fish Harbor carry several thousand gallons of fuel in 2 or more fuel tanks. Fitch Fuel Catalyst inline cylinders need to be sized according to engine horsepower and maximum fuel flow rate as determined by the injector pump capacity.

Installation examples

Most of these engines return a significant portion (up to one-third) of unburned fuel to the fuel tank in a return line. In cases where the combination of large fuel supply (more than 500 gals) and relatively low circulation rates (less than 50 gph) leads to insufficient exposure time of the fuel to the catalyst elements inside the cylinder, it has become useful to tie the return fuel back into the base of the Fitch cylinder by means of a T-connector as shown at right. In effect this creates a miniature "day-tank" reprocessing unburned fuel and preventing "hot"  fuel from causing condensation problems in the main tanks.
In this setup, a switch assembly is installed (as shown above) so that the vessel's engineer may choose whether to direct the fuel back to the fuel tank (normal mode) or through the base of the Fitch cylinder (as set above) in the "closed-loop configuration".
Results and Testimonials

Commercial Fishing Boats-see what two dollar-concious independent fisherman from Long Beach (Fish Harbor) area have to say about their positive experiences over the past two years: Fitch_fishing boat testimonials.pdf.
Western Fish Company-see statement from local squid & sardine fishery and processing company on their results since 2008 on 2 vessels: Western Fish Testimonial.pdf.
65-year old tuna trawler saving fuel and cleaning up emissions with Fitch Fuel Catalyst: Day Island Testimonial.pdf.
Marine Presentation (abbreviated version) with some technical info: Fitch Marine 2010 STD.pdf


The picture above supports a significant observation. Engines equipped with the Fitch Fuel Catalyst "burn clean" with noticeably less soot and other toxic emissions. The section of exhaust pipe on the right was cut out of a commercial fishing boat to be replaced due to a crack in the stainless steel liner. The fact that there was no evidence of carbon deposits on this old "wrinkle belly" surprised the pipe fabricator who built the replacement section shown on the left. In fact, he said, he's never seen one this clean on the inside in 35 years of working on them.

This particular engine had had a Fitch Fuel Catalyst installed approximately 300 hours before the vessel owner decided to repair the cracked section of pipe. The white residue is probably calcium carbonate that coated the inside surface of the pipe when a head gasket leaked coolant during the engines 20,000 hours of use. This vessel (f/v New Stella) is reporting 15% savings on fuel costs (estimated $20,000 per year savings). See testimonial letter from Western Fish Company.

Click here for more Marine Installations and Testimonials

Above provided with permission from Power Fuel Savers LLC~Western U.S. Distributor www.pofusa.net



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