Type
NTDH
Short description
NDH utilizing excess heat for residential heating
Location
Familienheimgenossenschaft district in Zürich (FGZ)
Country
Switzerland
End users
25 settlements
Heat source
Ground/Excess heat
Description
Excess heat (data centres and chillers) used to heat network, in summer heat is stored in ground for use in winter; network connected to HPs at substations for SH and DHW
Cooling
Yes
Heat source-network connection
HEX? (ground and excess heat-Missing info)
Booster HP or no for SH
HP
Booster HP, IHEU or DHSU for DHW
HP
TES
2 Vertical ground HEXs (332 boreholes 250 m depth)
Centralized/ Decentralized TES
Centralised
Category
2.4.1.1.1.*
Costs/Price [€] (Investment; Operation; Cost for the consumer)
Investment: 40.383 mil. €; Variable heat price 17 ct./kWh
Tsupply,min [°C] (network)
8
Tsupply,max [°C] (network)
28
Tsupply,min [°C] (at consumer substation)
<30 (new buildings)
Tsupply,max [°C] (at consumer substation)
>70 (existing buildings)
Treturn [°C] (network)
14
SCOP=(reference annual heating demand)/(seasonal electricity consumption for heating) [-]
4.1
Installed capacity [MW]
3.93
Produced heating energy [MWh/year]
80000 (excess heat)
Heating demand [MWh/year]
27000
Network length [km] (if not specified-pipes, trench specified)
1.5
Heat loss [%]
33.75 (calculated from data)
LHD (linear heat density)=(total heat demand)/(length of network) [kWh/m/year]
18000 (calculated from data)
LHPDD (linear heating power demand density)=(installed thermal power capacity)/(network length(pipes)) [kW/m]
2.6
Reference 1
https://pubdb.bfe.admin.ch/de/publication/download/8836
Reference 2
https://pdfs.semanticscholar.org/c5c5/383cc0ae6b8eff492b4662bcb022bc11e344.pdf
Reference 3
https://doi.org/10.1016/j.egypro.2017.07.443
Reference 4
https://www.velasolaris.com/wp-content/uploads/2018/12/konferenzbuch-siges2016.pdf
