Operation & Maintenance of Power Plants
multiphase mixtures. Safety is a predominant factor here, given the high pressures combined with high temperatures and chemical compatibility. Te variety of machines is great. Te novel
hybrid flow machines have similar energy saving potential as the new fans, and worldwide interest has been correspondingly high; the addition of new thermodynamic features means even more savings.
Reduced space One particularly outstanding feature is the reduced space they occupy - about 10 times less than conventional machines, thanks to the complete integration of the electric motor with the flow machine. Tis removes the need for engine rooms and thereby drastically reduces total installation costs. In addition, unique flow features allow new thermodynamic processes of wet compression and expansion, that can cut energy consumption still further.
Te market introduction of complicated processes and machines is a more gradual one than is the case with fans used for handling air.
Company practices will be turned on their head,
given that the process of understanding and accepting the new energy and mechanical ‘laws’ of the hybrid
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flow machines will require a high level of knowledge exchange. Te first high-capacity applications are now found in an unexpected quarter: in the ‘large’ foodstuffs industry, where sustainability is already well established. Te potential energy savings for these applications could be as much as around seventy or 80 per cent.
Subsidy effectiveness For successful projects, the return on investment for the government is exceptional, both directly and indirectly, and easily makes up for the flops that inevitably occur. Projects would certainly be more effective if
there were a less complex system of subsidies, such as a simple taxation measure rather than series of committees and mountains of paperwork. Tis would make it easier to ‘measure’ the economic benefits - perhaps it is time to revive the Dutch WIR law (Investment Account Act). ●
Enter 24 or ✔ at
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Femke Schaefer and G Bertels are with Bronswerk Heat Transfer, Nijkerk, The Netherlands.
www.bronswerk.com
Fig. 1. New Bronswerk Heat Transfer fans which were developed with the support of subsidies consume 50 per cent less energy and are also 6dBA quieter..
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