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BALANCE OF PLANT

Balance of Plant skids for chemical process sidestreams and environmental control equipment
Power generation and boiler plant services equipment as Balance of Plant modules
BoP modules for Motor Ships and marine propulsion equipment


Dove Thermal has been designing and building Balance of Plant modules for over thirty years. The advantages of bringing together all the required services for a core application are of particular value in the pre-engineering of complex systems, or when site access is in some way restricted – either from the viewpoint of working hours, personnel availability, or environmental hazard - or when installations are to be made at remote geographical locations. Whilst principally applied to power generation and boiler plant, the concept is equally descriptive (for example) of modularized test plant ancillaries, chemical process sidestreams and marine propulsion equipment.

From a contractual viewpoint, a Balance of Plant service module places responsibility for the supply and commissioning of bought-in equipment with a single source, whilst in terms of project management, the component count of deliverables is much-reduced. Having regard to integrity of supply, the transport, storage and security of a single item is more readily arranged.

The Balance of Plant skid that we designed for a packaged turbine generator comprised pumpsets and heat exchangers with oil & water tanks and environmental control equipment, served by automated systems, local and remote control panels, variable speed drives and prefabricated wiring looms.

Arguably, the Balance of Plant concept appears to have originated in the marine industries during the early1960s, when companies such as Rolls-Royce, Serck Heat Transfer and Coventry Radiator were pioneering modularized plant services. Skid-mounted generating units, along with fuel oil conditioning, lub oil cooling and filtration BoP modules for motor ships were dropped into position whilst fitting-out, and could be exchanged from the dockwall on a single tide. This anticipated the automated engineroom, in which plant maintenance is routinely accomplished ashore rather than at sea – an exigency imposed by present day marine operations.