ELCO Case Study Booklet Gas Boilers

TYPE: New Build | SECTOR: Offices
100 Bishopsgate
London, United Kingdom
OFFICES
The ELCO solution
Taking it to the roof: ELCO boilers
installed in London’s newest landmark
building.
The City of London is the historic centre of the capital, as
well as the international hub for financial services, including
insurance, commodities trading and investment. On a prime
corner of the ‘Square Mile’, a striking new 40-storey office
tower has risen from 100 Bishopsgate and, at the heart of
the 900,000 sqft building, lies six TRIGON® XXL EVO boilers
from ELCO Heating Solutions.
Background
The owners of the tower, Brookfield Properties, targeted the highest
standards of energy efficiency, productivity and comfort for its
occupiers. As a result, environmentally conscious systems and
materials have been included within the building’s design to maximise
sustainability and reduce the carbon footprint over its lifetime.
Central to these targets was employing a heating and hot water system
that utilised the latest high efficiency technology and offered extremely
low NOx emissions. These were key factors in the specification of
ELCO’s TRIGON® XXL EVO boilers, which have gross efficiencies of up
to 95.9% and ultra-low NOx emissions of just 20mg/kWh (Gross Calorific
Value) – providing extremely cost-effective running costs.
The six commercial boilers, which each have an output of 1.7 MW, are
providing efficient heating and hot water to all 36 office floors and are
housed on a purposely designed rooftop plantroom. The location also
lent itself well to the boilers’ lightweight modular construction and low
water content.
The units were transported to the rooftop plant room using a crane.
Once operational, their low water content kept the overall weight to a
minimum, removing the need for any additional reinforcing of the floor.
Featured products:
TRIGON® XXL EVO
TRIGON® XXL condensing boilers offer top
performance and can reach outputs up to
2 MW, thanks to a unique design. When
mounted in cascade, the TRIGON® XXL
boilers can reach a total output of 32 MW.
High efficiency & low emissions
Compact size and powerful output power
Unique heat exchanger with HEX³ geometry
for class leading NOx and CO emissions
Robust stainless steel heat exchanger
System schematic
The plant scheme:
Heating Circuit
Primary Flow
(Pumps)
6 x TRIGON® XXL EVO 1700
Heating Circuit
Primary
Returns
1 x Ultramax R604 (as a summer operation boiler)
6 No TRIGON ® XXL EVO 1700 Boilers
TRIGON® XXL’s low NOx emissions are achieved by
utilising a unique heat exchanger geometry and a
water-cooled cold flame burner. This is combined with
an optimised combustion system, plus a stainless steel
heat exchanger, to provide a reliable and robust lifetime
performance.
Another major benefit of the TRIGON® XXL is its low water
content design, which ensures it can respond rapidly to
today’s complex heating systems, which often combine
multiple heat sources. This design also means the boiler
has a small footprint and lightweight construction, allowing
it to be utilised in a wide range of commercial applications.
The TRIGON® XXL is available in ‘ECO’ and ‘EVO’ variants,
which combine to offer 19 different models.
System
Expansion
Vessel
Benefits
TRIGON® XXL EVO 1700
166
litre
Low water
content boiler
PU
22
1 No Ultramax
R604 Boiler
MCWS
mg/kWh * 109% **
Extremely low
Annual efficiency
NOx emissions
(NNG 40/30ºC)
(EN15502)
* (EN15502)
** (In accordance with Equation 2 in the Non-Domestic Building Services Compliance Guide)
SSV
INDUSTRY EDUCATION / SPORTS
HOTELS / MALLS
RESIDENTIAL
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