solar panels are also installed in or on the
drawing boards for systems in Asia and
South Europe where the sun is stronger
than in Denmark and solar heating more
profitable. In Vietnam – where the payback
time on investment in a solar heating system is just four years – GJ Teknik has been
so successful that it is building a production plant in the country.
To develop its product line, GJ Teknik
partnered with nearby Marstal District
Heating, the world’s largest solar heating
plant, which was already making its own
highly effective solar collectors. The local
plant now purchases a significant amount
of its panels from GJ Teknik.
The company expects solar heating
systems to become even more attractive in
the future as oil prices remain high and
countries work to lower worldwide carbon
Spence Guide Available for
Steam and Fluid Control
Spence Engineering has published the
third edition of its Steam & Fluid Control
Designer’s Guide. Created for engineers,
facility managers, maintenance managers
and equipment buyers, the guide includes
application and specification information
on the company’s regulators, control valves,
safety-relief valves, condensate pumps,
desuperheaters, steam traps, noise-suppres-sion products, strainers, check valves and
To request a free copy of the guide,
go online to www.spenceengineering.com
or call (800) 398-2493.
York International Corp. has extended
the capacity of its MAXE model YD centrifugal chillers to 4,750 tons of refrigeration. The upgrade increases chiller capacity
by 75 percent while maintaining efficiencies.
According to the company, the model’s
footprint can be as much as 50 percent
smaller than chillers of comparable capacity.
The MAXE model YD chiller utilizes
two York single-stage centrifugal compressors, operating in parallel on a common
set of heat-exchanger shells. The chiller is
engineered for maximum efficiency at both
design and off-design conditions, operating
on a continuous basis with cold entering
condenser-water temperature and full condenser flow at all load points. The chiller
provides further energy savings by running
in single-compressor mode at part loads
of 50 percent and lower. It features a design
greater than 0.55 k W/ton and an integrated
part load value as low as 0.41.
For more information, call (800) 861-
1001. A list of local York offices and phone
numbers is available at www.york.com.
Swedish Energy Firm Buys
Swedish energy company Borgholm
Energi recently signed an agreement to
buy buildings – including a district heating
plant – belonging to Arla Foods’ now-defunct Borgholm Dairy. Purchased for 6. 5
million Swedish kronor ($894,000), the
property is located on the island of Øland
in Sweden. Borgholm Energi takes possession of the buildings Oct. 1, 2005. They
include the former cheese production area,
storage facilities and a combined heat and
power plant that already supplies parts of
the town of Borgholm with district heating.
A new bio incineration plant is planned
for the site.
Landfill Gas To Be Used for
Nelson Hospital in the city of Nelson,
New Zealand, will soon be heated by gas
from a city landfill under a new partnership of the Nelson City Council, the Nelson
Marlborough District Health Board and the
energy company Meridian Solutions. The
company announced that it has agreed to
buy raw landfill gas from the council’s York
Valley landfill. The gas is currently being
flared off at the landfill.
Instead, the gas will be used to generate a significant portion of the steam
needed for hospital heating and to supply
an adjacent laundry. Meridian Solutions will
install a landfill gas-fired boiler at the hospital under a separate agreement with the
District Health Board to generate steam that
would otherwise be generated by coal. As
part of the project, Meridian Solutions will
also build a landfill gas-compression and
pretreatment plant at the landfill, as well
as a 2-km (approximately 1.2-mi) pipeline
to carry the gas to the hospital.
Detailed project planning was scheduled to start in June 2005. The gas plant is
expected to be commissioned later this year.
“Green Beer” in Canada
Brewers in Canada are finding innovative, environmentally friendly ways to
save energy. Reporting May 12, 2005, on
“green” brewers from around the country,
RateBeer Weekly Web site mentioned
Steamwhistle Brewing in Toronto and its
connection to Enwave’s deep lake water
cooling system. Using a series of heat
exchangers, Enwave draws cold water
from Lake Ontario to cool to downtown
Toronto buildings. The company also provides the brewery with steam generation.
Elsewhere across Canada, according
to the article, some brewers are installing
motion sensors, more windows and efficient fixtures to reduce lighting use; using
wind power, solar energy and fuel cells;
and cogenerating steam and electricity to
meet their brewery needs.
Mayors Endorse Climate
The U.S. Conference of Mayors has
passed a resolution endorsing local action
to reduce global warming pollution. At its