Estimated Navy Cost Avoidance:
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Minimum annual:
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$ 7,016 K
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Minimum 15 Year:
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$ 105,240 K
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| Based on the third generation VSD Research and Development supported by MTTC, the Navy has determined that the resultant technology and drives meets the requirements and has performed a Business Case Analysis. For Firemain Systems, it is cost effective on LHD, DDG and CG classes, but not on FFGs and CVNs. A structured plan to implement the firemain system backfit is in development. There are over 200 drives on various systems including Deck Edge Doors, Aircraft Elevators, Cranes, Windlasses and Package Conveyors. |
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Problem:
| Current high demand pumps such as firemain supply run only "on/off" which causes low efficiency, piping erosion and system stress. |
Solution:
| VSDs represent the future for motor control. They run pumps only at speeds that are required, use less energy and reduce fluid system stress, wear and erosion. VSDs continue to become smaller, lighter and more cost effective. They pave the way for new high-torque motors. |
Fleet Impact:
| The use of VSDs will provide significant maintenance reduction through greater piping reliability and lower electrical system stress caused by motor start-ups and inefficiencies. Combined with linear output motors, VSDs will become a major component of an all-electric ship. |
Applications:
| Surface Ship, Aircraft Carrier and Submarine motor-pump systems. Extension is likely to other motor applications. |
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