State-of-the-Art of Industrial Technology of Rotating Diffuser (RD) Fans for Large SES, G.D. Boehler, Aerophysics Co., 1 Dec 83 (0105)
The purpose of this report is to supplement previously presented information about the "credibility of the MPS* lift fan system." The opportunity is also taken to show the higher limit of pressure rise currently available using RD fans, over the MPS duty point. It is shown that fan pressures twice as high as the MPS (15,000 ton) duty point can be obtained from off-the-shelf fans. In the first section of the report, the required characteristics of Ehe MPS lift fan are recalled, and how they are met by using an Aerophysics/ Neu RD 195-.55-1.3-90° fan. In the second section, a list of over one hundred industrial fan wheels installed by Ets Neu in the past fifteen years in steel plants around the world is presented and summarized. The duty point for each of these fans is shown and compared with the 10,000-ton MDC** fan duty point; most importantly, each of the 14 fan systems shown (for which a total of 98 wheels were furnished) belong to the same class of fabrication as the MPS fan (referred to by Neu and Aerophysics as Class IIIs). * "MPS" stood for Multi-Purpose SES (10000-15000 LT) it was a RO-RO SES cargo ship for military cargo.
** "MDC" stood for a Medium Displacement Combatant (1000-1500 Lt)