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Advances in ultrasonic controllers – new energy-saving solutions for pump control

✍ Scribed by David Hewitt

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
81 KB
Volume
2006
Category
Article
ISSN
0262-1762

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The performance of three heating systems was analysed in closed-cycle pig farm (farrowing and weaning section). Three adjoining rooms were heated using one of the following systems: a reversible air to air heat pump (HP) for both heating and cooling; a standard liquid petroleum gas (LPG) boiler for