TECH NEWS Wärtsilä Enters Dry Waste Treatment Business
Volvo Penta’s IPS helps increase vessel performance
Volvo Penta IPS for New Pilot Vessel A new 55 ft vessel being built for the Virginia Pilots Association by GladdingHearn Shipbuilding will be powered by Volvo Penta IPS inboard propulsion systems. The vessel, designed by C. Raymond Hunt Associates, will run on twin D13 900 hp U.S. EPA Tier 3 engines with IPS3 drives. “Stability, reliability, support, speed and efficiency – these are the five criteria that we used to select the engine for the new pilot boat,” said Frank Rabena, a 17-year pilot and Chairman of the association’s pilot boat committee. “We found the Volvo Penta D13 combined with the IPS3 easily met those criteria and became the power solution.” The IPS provides up to “20 percent faster speed, 30 percent lower fuel consumption, 15 percent faster acceleration and 50 percent
lower noise and vibration levels when compared to a traditional shaft installation,” says Marcia Kull, Vice President of Marine Sales for Volvo Penta of the Americas. What makes the Volvo Penta IPS powerful is its twin forward-facing, counter-rotating propellers and individually steerable boat pods under the hull. The forward-facing propellers are working in “undisturbed waters,” explains Kull, meaning it takes less power to move the boat forward since the propeller thrust is parallel with the hull. IPS technology onboard means there is an increase in performance with the vessel being able to operate at higher speeds, an increase in efficiency and a reduction in fuel consumption. www.volvopenta.com
Cat Tier 4 Engines for McAllister Tugs H o r i z o n Sh i p b u i l d i n g , Bayou LaBatre, AL, has tapped Caterpillar Marine to supply EPA Tier 4 certified 3516E EPA CAT Marine engines on a pair of tugs it is building for McAllister Towing & Transportation Co., Inc. The tugs will be the first equipped with the Tier 4 engines. The 100 ft azimuth sterndrive (ASD) escort and rescue tugs will each be powered by two CAT Marine 3516E EPA Tier 4 engines rated at 3,386 bhp and supported by three CAT C7.1 EPA Tier 3 gensets rated at 118 ekW and two CAT C18 EPA Tier 3,803 bhp fire pump engines (Fi-Fi). In order to meet the stringent Tier 4 final emissions standards that came into effect
this year, each 3516E engine is paired with a selective catalytic reduction (SCR) aftertreatment system. The engine’s electronic governing control unit minimizes fuel consumption and monitors engine operating parameters. The tugs will be the largest operating in McAllister’s fleet, as well as its only Tier 4 tugs. Additionally, they will be among the largest operating on the East Coast. Upon delivery, McAllister’s fleet will increase to 32 tractor units. The first tug, the Capt. Brian A. McAllister, will be delivered April 2017. The second, the Rosemary McAllister, will follow in July 2017.
Wärtsilä recently unveiled its offerings for dry waste in cruise ships—marking its entrance into the dry waste treatment business (the company already has an extensive portfolio handling wet waste). The overall full treatment solution will provide the vessels with an environmentally clean, safe, and energy efficient means for handling garbage and effluent (sewage/liquid waste). The first ship to feature the system belongs to British cruise operator Saga Cruises. The ship is currently being built at Meyer Werft Shipyard. The order for the equipment was placed in September, with an option for a second ship. The system uses new membrane technology that leads to energy savings of up to 50 percent when compared to conventional systems. Each of the Saga Cruises ships will be fitted with a Wärtsilä Advanced Wastewater Treatment system, including grease traps, buffer tanks, and membrane bioreactors; Wär tsilä’s Dry Waste Disposal system, including densifiers, glass crushers, bale compactors and storage; Wärtsilä’s Food Waste Vacuum system, including feeding stations, shredders, collection tanks, vacuum stations, decanters with flocculation, and food waste chutes; Wär t silä’s Bio -Sludge Treatment system, including a de-watered bio waste silo, decanters with flocculation, a dryer, and a dried bio-sludge silo; and Wärtsilä’s Dry Garbage system, including shredders, a dry waste silo, and incinerator. The Wärtsilä Advanced Wastewater Treatment system is fully compliant with IMO Resolution MEPC 227 (64) including ch 4.2 nutrient removal (Helcom), MARPOL annex IV Reg. 9.2 and 11.B, the Alaska Murkowski Standard USCG / Alaska continuous discharge standard and Alaska General Permit, and the USA EPA VGP 2013.
www.cat.com December 2016 // Marine Log 27