BFLNov.08 19/11/08 12:23 pm Page 63
commercial hvac
Optimising energy needs
through remote control
NUMEROUS factors contribute to the
According to the
The Winchester Discovery Centre is the
energy efficiency of buildings. These include:
European Commission’s
result of a £5m project by Hampshire
• Thermal insulation
EU Action Plan, the
County Council to transform and extend
• Production of heating and cooling energy the old Winchester town library building
appropriate to actual needs
greatest potential savings,
into a leading edge cultural centre. In
• Efficient use of ‘free’ heating (solar and
27-30% by the year 2020,
addition to a greatly improved library, the
ground source, for example) and cooling are in existing buildings. Centre features many new facilities such as
(such as ventilation and night time cooling) an art gallery, museum and event hall.
• Efficient distribution of heating and
cooling energy throughout the building with Monitoring
minimum loss The Centre has a CentraLine HVAC
• Using regenerative energies as much as automation and control system. It was
possible, and attaining the highest possible designed and installed by Woodward
efficiency in use of fossil fuels Electrical Services, which can access the
• Optimal adjustment of existing HVAC system remotely for optimisation and fault
• Reducing the electricity consumed by monitoring.
HVAC system components, such as Various parts of the Centre are served
recirculation pumps and fans by radiant panels, air handling units or
“Control technology is essential, directly underfloor heating. This mix of heating
or indirectly, in meeting all these aims,” types was selected to provide the best
explains Harry Swinbourne, UK business energy-efficient solution in each room,
manager for CentraLine, Honeywell’s considering the type of use and whether it
brand that specialises in control of HVAC is within the original building built in 1838
systems. “The goal is to achieve optimum or a new extension.
comfort from minimum energy.
Top of page The multi-purpose hall at the
Free cooling is provided by variable
“The new Winchester Discovery Centre
Winchester Discovery Centre is equipped
with temperature, air quality and occupancy
speed fans driven by Honeywell energy
shows the important central role of a sensors. The AHU fan provides a trickle air saving inverters. Automatic window louvers
building management system in the
supply until the occupancy sensor is
are opened for natural ventilation provided
evaluation and optimisation of energy
triggered, then the BMS sends the fan up to
a higher speed
the outside temperature exceeds 18 deg C.
efficiency. Building operators should
Above The exhibition gallery has its own
All the HVAC plant is controlled by the
always consider the option of remote dedicated AHU to control temperature, air CentraLine system, at the heart of which is
access – for both human users and data
quality and, in this case, humidity as well to
an Excel Web programmable building
help protect exhibits
processing systems. This allows central automation controller which monitors all
building management and allows site utilities for energy management and
specialised service partners to assist in controls all the HVAC plant using
constantly optimising a building’s energy distributed inputs and outputs on an
requirements.” industry standard LonWorks network.
November 2008 building forleisure 63
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