World News
New Alfa Laval Economizer Could Result in "Massive Fuel Savings"
Alfa Laval this week said its new pressurized economizer combined with exhaust gas recirculation technology has the potential for "massive fuel savings" and could turn NOx limit compliance into profit.
The economizer, which was tested on the Maersk Cardiff's two-stroke MAN B&W 6S80ME-C9 engine in November 2014, was developed as a result of Alfa Laval working with MAN Diesel & Turbo SE to optimize its Exhaust Gas Recirculation (EGR) technology.
The Aalborg EGR-HPE economizer is enclosed in a pressure casing and placed in-line ahead of the pre-scrubber sprayers in the EGR circuit, and Alfa Laval says it can yield a number of benefits, such as more efficient heat recovery if connected to a conventional waste heat recovery system.
John Pedersen, business manager, boilers, combustion & heaters for Alfa Laval, stated on the company website that "By moving the break point for waste heat recovery from a medium engine load down to a low load, the Aalborg EGR-HPE enables even slower steaming.
"That means fuel savings that quickly pay back the economizer, offset the EGR investment, and lower CO2 emissions on top of the NOx reduction."
Also, because the economizer makes waste heat recovery beneficial at engine loads as low as 30 percent, "This means that vessels can steam even slower, with huge fuel savings as a result," according to Pederson.
Additionally, a steam drum shared by the traditional exhaust gas boiler enables the Aalborg EGR-HPE to produce high-quality steam with a temperature of just above 400 Celsius.
Pederson said, "The difference in steam quality has a direct effect on the performance of the steam turbine: installation factors play a role, but a substantial increase in power generation can be expected."
Alfa Laval in June announced that its PureNOx, which was designed to prevent soot and compounds from accumulating in the EGR scrubber and corroding the engine, has been approved for use with the MAN Diesel & Turbo SE (MAN) EGR system.
Key Bunker Prices More
| VLSFO | MGO | |||
|---|---|---|---|---|
| $/mt | +/- | $/mt | +/- | |
| Singapore | 625.00 | 9.00 | 732.00 | 15.00 |
| Rotterdam | 577.50 | 3.50 | 739.50 | 1.00 |
| Houston | 595.00 | 0.50 | 767.00 | 4.50 |
| Fujairah | 628.50 | 4.00 | 878.50 | 11.00 |
| Global 20 Ports Average | 645.50 | 0.50 | 827.00 | 5.00 |
| Global 4 Ports Average | 606.50 | 0.50 | 779.50 | 0.50 |
| Global Average Bunker Price | 703.50 | 4.00 | 886.00 | 6.00 |
Popular Now More
-
May 03The new hire had previously worked for Toyota Tsusho Petroleum Pte Ltd since 2015. -
May 02Tracy Palm, group HR director at Monjasa, sets out the case for the bunker industry increasing its traineeship programmes. -
May 01Hapag-Lloyd's head of green fuels cites lack of production capacity and feedstocks as key barriers to wider uptake of biofuels in shipping.