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Turbocharger flow capacities continue to improve

机译：涡轮增压器的流量不断提高

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Two of MAN Diesel & Turbo's new turbo compound systems with power turbine and generator (TCS-PTG) will enter operation on two 4,700teu container ships in early 2014. MAN supplied a large number of earlier power turbines to AP Mailer vessels back in the 80s and 90s, and now Reederei Horst Zeppenfeld has become a front-runner for the new generation of integrated power turbine systems. The vessels are powered by individual MAN B&W 6S80ME-C9.2 low-speed engines, and the scope of supply includes two TCS-PTG20S and two TCA88 turbochargers. The new generation of TCS-PTG incorporates the latest versions of TCR turbocharger geometry and other new features such as electrical actuators for the regulation of exhaust gas flow over the turbine. The thermal efficiency of these units can be significantly above 100%, says Andrea Bader, project manager for TCS-PTG at MAN. "Take for example an engine with 20MW. Running the power turbine will give a small consumption penalty of up to 2g/kWh on the main engine, which is equivalent to 400kW of thermal power. Fortunately this is overcompensated by our TCS-PTG producing 780kW of electrical power on such an engine. Divide the two figures and you achieve a thermal efficiency of about 190%. This is what makes our product so beneficial. "There are also benefits for overhauling. We strongly believe that the maintenance of a TCS-PTG is cheaper than the maintenance and overhaul of a genset because you have fewer components and the ones you have to take care of are cheaper, smaller and lighter than, say, a cylinder liner," says Mr Bader. MAN sees a growing market for the technology and believes it is best suited to large cargo vessels including container ships, bulkers and tankers that have at least 20MW of installed power. The system automatically starts up between 40% and 50% MCR when the charge air pressure is sufficiently high. Below that, the system is not operational.
机译：曼柴油机与透平公司的两套带有动力涡轮和发电机（TCS-PTG）的新型涡轮复合系统将于2014年初在两艘4,700teu集装箱船上投入运营。上世纪80年代，MAN为AP Mailer船提供了大量早期的动力涡轮到了90年代，如今Reederei Horst Zeppenfeld已经成为新一代集成动力涡轮系统的领先者。该船由单独的MAN B＆W 6S80ME-C9.2低速发动机提供动力，供货范围包括两个TCS-PTG20S和两个TCA88涡轮增压器。新一代TCS-PTG融合了TCR涡轮增压器几何形状的最新版本和其他新功能，例如用于调节涡轮机上废气流量的电动执行器。 MAN的TCS-PTG项目经理Andrea Bader说，这些单元的热效率可以大大高于100％。 “例如，以一台20MW的发动机为例。运行涡轮机将给主机带来高达2g / kWh的小能耗损失，相当于400kW的火力。幸运的是，我们的TCS-PTG可产生780kW的功率，对此进行了补偿。将这两个数字相除，您将获得约190％的热效率。这就是使我们的产品如此有益的原因：“大修也有好处。我们坚信，TCS-PTG的维护比发电机组的维护和大修便宜，因为您所需要的组件更少，而您要维护的组件却比汽缸套更便宜，更小，更轻。” Bader先生表示：“ MAN看到了这项技术的不断增长的市场，并认为它最适合装机功率至少为20MW的大型货船，包括集装箱船，散货船和油轮。该系统会自动启动40％至50％的MCR当增压空气压力足够高时，系统将无法运行。

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  • 来源
    《The Motor ship》 |2013年第12期|12-12|共1页
  • 作者

    Wendy Laursen;

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  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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