Technology Ancillary equipment
Essential extras
istock/algisbal
Neglecting ancillary items such as pumps,
Pump systems are often operated inefficiently in
valves, pipes and controls can cost a
terms of energy, according to the British Pump
Manufacturers Association. The reasons depend on
consultant’s end-user client dear. That’s why
the pump application. “But the constant outcome is
it pays to take an interest in the specification
the cost to industry through wasted energy, which runs
into millions of pounds per year, and the cost to the
of this smaller building services equipment,
environment through the generation of this wasted
says Ian Vallely
energy,” it says. More recent developments such as
variable speed pumps can help counteract this.
Correctly specified valves also offer environmental
T
here is a temptation for consultants to benefits. They can, for example, negate refrigerant
concentrate on larger, more energy-intensive leaks and their associated environmental costs. But it
items such as chillers, air handlers and fan coil is not only environmental costs that are affected by
units at the expense of smaller “accessories” apparently minor building services equipment. The
when designing a building services system, because financial implications can also be considerable. Pipe-
the pay-off in terms of energy efficiency can appear work, for example, can have a disproportionate impact
bigger. However, items such as pumps, valves, pipes on a project.
and controls play a crucial part in terms of both energy Much time can be saved by effective planning, but
efficiency and performance – so it makes good business having products that are quick and easy to install can
sense to pay attention to them. also reduce labour time on a project dramatically.
As in every other facet of building services, a key Over the next two pages, we look at some of the latest
issue with ancillary equipment is energy efficiency. products in these vital areas.
50 CIBSE Journal September 2009
www.cibsejournal.com
CIBSEsep09 pp50-52 pipes.indd 50 20/8/09 18:49:52
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