ELCO Case Study Booklet Gas Boilers

I
TYPE: Renovations | SECTOR: Education
Annastift
Living and Education
Hanover, Germany
The ELCO solution
The heating system requires a delta T of
30K and at the same time a high systemside
water pressure of 6 bar due to the
building's height. Furthermore, only two
chimney flues with a height of 42m were
available. Here, the TRIGON® XL was able
to demonstrate its full performance and
robustness. Coupled with ELCO's HEX³
stainless steel heat exchanger and the
low flue gas emissions, a long-lasting and
efficient system was created.
OFFICES
System schematic
RESIDENTIAL
Achtung !
Es handelt sich nur um eine Prinzipskizze. Sicherheitstechnische Einrichtungen wie
Armaturen etc. sind zu erganzen.
Innovative new central heating system
powered by ELCO boilers.
Annastift Living and Education ensures comprehensive
educational, vocational and social rehabilitation for
people with disabilities in Hanover, especially those
with physical disabilities.
From the heating centre in the basement of the
16-storey building, the surrounding properties are
supplied with heat.
The challenge
The existing boiler was defective and leaking. Therefore, the
defective 2,300kW boiler had to be replaced at short notice, while
the remaining 2,300kW boiler also had to be renewed. A CHP
(combined heat and power) with an electrical output of 300kW
remains installed in the central heating system, which should be
hydraulically integrated into the new set-up and optimise running
time. A combination of cramped conditions in the central heating
system, the building's height of over 42m and the integration into
the BMS (GLT) were all issues that had to be overcome.
Comment
The aim was to increase the efficiency of the boiler system in
combination with the CHP unit and ensure reliability. For this
purpose, we focused on a low starting output of the boilers when
selecting the products and put together a cascade comprising
several units. We then compared the TRIGON® XXL and TRIGON®
XL and, together with the heating engineer and the customer, we
decided on a cascade of 8x TRIGON® XL 570 instead of 4x TRIGON®
XXL 1200.
Featured products:
TRIGON® XL
The TRIGON® XL represents a significant
step forward in heating technology.
With extremely flexible configurations,
clever design and a range of models
available, the boiler is perfect for a variety
of commercial applications. Plus, extensive
cascade arrangements of up to 8 boilers
with a combined output of 4,560kW are
possible.
Unique heat exchanger with HEX³
geometry for class leading NOx and
CO emissions
Extremely high efficiency
Robust stainless steel heat exchanger
Low water content boiler
Compact dimensions
Can be easily dismantled and
reassembled onsite
The plant scheme
8 x TRIGON® XL 570
COM - Gateway for connecting the boilers to the building
management system via the BAC-Net bus system
Benefits
TRIGON® XL 570
Ventil
01
Pumpe I---,
01 A I
W I
elco
LPBr--
---Bus- --
TRIGON ® XL
I
I--- 7
Pumpe A I
01 M
elco
LPB­
Bus
LPB- ---Bus --
Nur zur Illustration, keine Planungsgrundlage!
Customized Solution
Hohenzollernstr. 31
D-72379 Hechingen
82
litres
For single boiler
heat exchanger
Gezeichnet:
Gepruft:
R.S.
I
I--- 7
Pumpe
01 A I
M
elco
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I---7
Pumpe A I
01 M
)
elco
Datum: 16.08.2023
Anderungsdatum:
I
Pumpe 1----,
01 A I
W I
elco 8
I
I---7
Pumpe A I
01 M
)
elco
LPB-
----Bus ___
TRIGON ® XL TRIGON ® XL TRIGON ® XL
LPB-
---Bus __ _
TRIGON ® XL TRIGON ® XL TRIGON ® XL TRIGON ® XL
31
mg/kWh
NOx level
(annual emission
EN15502)
110.3%
Annual efficiency
(NNG 40/30ºC)
Bezeichnung:
Status:
---- , ----
L __ ,
Pumpe
01 I
elco
( )
I
I
---- ----L-----
,
Pumpe r---,
01 © :
elco (
Zeichenblatt - BVH BVH Annastift
, I T
//
BacNeUModbud
zur bauseitigen
GLT-Anlage
Zur bauseitigen
Hydraulik
0-10V Signal
van bauseitiger
GLT-Anlage
COM
GATEWAY
___ Jiil
---------------------------r-­
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