[GBC Finlandin jäsentilaisuus 2013] Ilari Aho, Uponor Oy: Upororin toimitilauudistus

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This document summarizes key information about the Plaza Loiste office complex in Vantaa, Finland, which uses an Underfloor Heating and Cooling (UFHC) system designed by Uponor. The complex has 7,240 square meters of office space across 6 floors, of which 2 floors are for Uponor. It uses 11 boreholes to provide free cooling via a Uponor G12 system. An occupant survey found high satisfaction with the thermal environment, though some reported it being too cold in meeting rooms, which have since been adjusted. The building's performance is being monitored as part of a national research program to evaluate indoor air quality, energy usage, and the long-term performance of the borehole field and U

Technology Business

Uponor Group Headquarters
Plaza Loiste, Vantaa, Finland
Ilari Aho
November 2013

Plaza Loiste
Key Facts
• 7 240 m² office space
• 6 office floors, of which 2 for Uponor
• First BREEAM Very Good certified office
complex in Finland
• Energy Class A
• UFHC, ceiling cooling, ground energy

• Architect: Forma-Futura Oy
• Developer: NCC Property Development
• HVAC design: Optiplan Oy, Uponor

25 November 2013

©Uponor

2

VENTILATION
MACHINERY ROOM
• Mechanical supply/
exhaust with high
efficiency heat
recovery
• Water chillers for
peak cooling
demand

UPONOR FLOORS
• Underfloor heating
and cooling with free
cooling from
boreholes
• Ceiling cooling for
peak demand
• Air circulation chillers
for peak demand in
meeting rooms

ENTRANCE AREA
Snow and ice
melting

•

BOILER ROOM
• Connections to
district heating and
boreholes

FREE COOLING
11 boreholes with Uponor G12
providing free cooling to Uponor floors

25 November 2013

FLOORS 1 - 5
Underfloor heating

©Uponor

3

Plaza Loiste Environmental Performance

Free cooling for energy efficiency
Energy production of the Plaza Loiste borehole cooling system

Month

• Free cooling
energy from the
boreholes covers
the cooling
demand of the
Uponor offices
• Purchased
cooling energy
need eliminated
on an annual
basis
• Monitoring
program
established from
the cooling
season 2014
onwards

Simulated energy
production of the borehole
field

Cooling energy demand of the
building

kWh/month
Anna Forsström: G-12 ENERGIANKERUUPUTKIEN KÄYTTÖ MAAVIILEÄN KERUUSSA
Opinnäytetyö, Ympäristöteknologia, YAMK ,Toukokuu 2013
25 November 2013

©Uponor

5

Plaza Loiste occupant survey

Thermal environment and sensation

• High satisfaction level, with some remarks on too cold temperature levels especially in
the meeting rooms
• Regulation of the meeting room fan coil units has been adjusted after the summer
period, and they should now work appropriately during the next cooling season

25 November 2013

©Uponor

6

Plaza Loiste occupant survey

Air movement

• Individual comments related to
draught in meeting rooms caused
by the fan coil units; this should be
corrected by the adjustments that
have already been made.

25 November 2013

©Uponor

7

Performance monitoring and verification
• Plaza Loiste is a pilot project in
the national RYM Indoor
Environment research program
• Monitoring and evaluation will
be carried out regarding
― indoor environment quality
― building energy performance
― long term performance of the
borehole field
― optimisation of the solution

• Partners
― Aalto University
― VTT Technical Research Centre of
Finland

25 November 2013

©Uponor

8

[GBC Finlandin jäsentilaisuus 2013] Ilari Aho, Uponor Oy: Upororin toimitilauudistus

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[GBC Finlandin jäsentilaisuus 2013] Ilari Aho, Uponor Oy: Upororin toimitilauudistus