near marine 3 A small boiler makes big news In waste heat recovery (WHR), a compact new boiler offers expansive energy savings. The Alfa Laval Aalborg Micro is a uniquely compact WHR boiler for marine and industrial use. Designed to recover waste heat from smaller gas turbines and auxiliary engines using gas, MDO or HFO, it can naturally generate steam or hot water. But it can also be used to heat media such as triethylene glycol (TEG) and thermal fluid (TFO), or to raise the temperature of boiler feed water. Despite its small size, it typically doubles the thermal efficiency of the turbine or engine – which means lower fuel costs and emissions. Advancing on land as well As environmental challenges and regulations intensify, waste heat recovery (WHR) systems are improving total energy efficiency – and even boosting electrical capacity – without increasing emissions or fuel consumption. This is true at sea but also at power plants on land. Renewable energy is fulfilling a larger share of the world’s energy needs, but its fluctuating availability demands responsive backup power that adapts to load changes. Engine power plants must be able to start and stop quickly and repeatedly, which poses both challenges and opportunities for WHR systems. Today, Alfa Laval Aalborg WHR solutions are at the cutting edge. When Alfa Laval entered the engine power business, most plants were of the traditional single-cycle type. These use only a small portion of the available WHR capacity for fuel heating, letting the rest go unutilized. Alfa Laval took plant efficiency further by developing secondary cycle applications. Of the almost 1500 Aalborg WHR systems supplied to nearly 100 countries so far, half of them provide full WHR. Towards the end of the 1990s, WHR boilers with natural circulation were adapted to engine power plants. Alfa Laval has been at the forefront of their development ever since, and today natural circulation is also becoming a standard in WHR systems for cruise vessels. Naturally, development continues. Having worked for decades at challenging remote sites worldwide, Alfa Laval is focused on customer-oriented solutions for fast and easy installation. The latest of these is a containerized steam turbine generator system. On the front lines of oil and gas As the oil and gas industry becomes increasingly mobile, Alfa Laval is providing the big solutions needed for self-sufficiency. Alfa Laval Aalborg boiler solutions have been part of offshore oil exploration for decades. Since the development of floating production storage and offloading (FPSO) vessels in the 1980s, the work has become increasingly remote – creating the need for larger, more self-sufficient vessels with constant demands for steam and hot water. Alfa Laval has a broad portfolio of solutions for FPSOs including fired multi-fuel boilers, waste heat recovery systems and thermal fluid systems. One of the most relied on is the massive Aalborg D boiler, which can deliver 120 tonnes per hour of superheated steam. No matter how large the project, Alfa Laval can support it from concept to completion. 1996 The trendsetting MISSION modular boiler concept is launched. The first MISSION product is the oil-fired MISSION OS marine boiler. 1997 UNEX marine boilers and exhaust gas waste heat recovery systems are added to the portfolio through the acquisition of Pipemasters Oy, based in Rauma, Finland. 2005 Aalborg Industries delivers the first of a new generation of WHR-TG boilers to A.P. Møller Maersk, providing up to 11% savings in fuel and equivalent emissions. 2007 A new generation of MISSION boilers with reduced environmental impact is launched: the self-cleaning MISSION TCi series. The boilers are now delivered as one complete unit. 2011 Aalborg becomes a product brand name when Aalborg Industries joins Alfa Laval, replacing the previous MISSION brand.
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