Honeywell Control Systems - Energy expert aims for eco
efficiency in his home as well as his research
Dr
Michael Lamperth is not only a world-renowned developer
of energy efficient vehicle technologies, but strives to
be eco-friendly in all he does. His home has a
super-efficient home heating system featuring solar
heated hot water and wireless Honeywell heating control
of individual radiators. These controls avoid energy
wastage by heating rooms only when needed and then only
to the preset temperature for the time of day.
Dr Lamperth is an ambassador for energy efficiency as a
lecturer at the Department of Mechanical Engineering at
Imperial College London. His powertrain research is
expected to have profound global significances in the
design of energy-efficient electric and hybrid vehicles.
Meanwhile he has striven to ensure that his four-bedroom
family home, built in 1900 and doubled in size in 1980,
uses as little energy as possible. “The wireless control
system is Honeywell CM Zone, which transmits from a
central unit to wireless controllers on radiators,” he
explained. “It ensure only rooms being used are heated
and then only to the temperatures necessary for comfort.
“Rooms are grouped in heating zones, depending on the
times of day they are used. For example, the kitchen and
breakfast room zone is heated only in the morning and at
lunchtime. Meanwhile the family rooms, study and
bathroom are in a zone with a different heat pattern
focused on warmth during the evening.
“The Honeywell wireless zone controls can change the
temperature in each zone up to six times per day. They
can also set a different time and temperature programme
for each day of the week, which is useful at weekends
when our heating needs differ.”
The temperatures of radiators in Dr Lamperth’s
children’s bedrooms are presently controlled by
thermostatic radiator valves as they are only
individually heated when used. He hopes to group these
on an additional wireless heating zone in the future.
“The radiator valves will not need to be removed: The
existing thermostatic heads can be unscrewed and
replaced in minutes by Honeywell wireless controller
heads, without draining the system.”
The solar powered hot water heating, installed early in
2007, meant the Lamperth family did not use any gas for
heating its domestic hot water from April to October
2007. Dr Lamperth commissioned solar heating specialist
Rayotec to install Schott solar panels and a 250 litre
hot water cylinder. “We get 250 litres of hot water at
40 degrees C, even on cloudy day,” he revealed.
The storage cylinder has two heating coils. One is at
the bottom and linked to the solar panels; this provides
full tank heating to maximise the benefit of solar
power. The second coil, served by the gas boiler and
used to top up the hot water if necessary, is in the
middle, so only heats the top half of the tank to avoid
wasting gas. The tank also has an immersion heater to
heat water at the top of the tank: this will be used
only in the unlikely event of boiler failure.
“The hot water may need topping up from the gas boiler
to meet family needs for half the year, but we reduce
gas consumption even at these times: the solar heating
controller is programmed to check at 5pm each day if the
water is below 40 degrees C. Only then will the boiler
top up the heat using gas. “It checks only once to bring
on the boiler, if necessary,” he explained. “If the
boiler was coming on to maintain the stored water
temperature from say, 5pm to 10pm we would have a lot of
residual hot water overnight and much of the available
energy from the solar system would be wasted the next
day.
Dr Lamperth’s home energy-saving initiatives have also
included installation of cavity wall insulation and
double glazing, and he replaced the original gas boiler
in summer 2007 with an energy-efficient Vaillant ecoTEC
plus 428 condensing boiler, capable of over 90%
efficiency – 50% more than that of the original unit.
“For me, energy efficiency is a way of life. In my home
as well as my research, I always ask myself if there is
a more eco-friendly way to do things. But that’s what we
should all be doing.”
Email:
literature@honeywell.com
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