Calc Data Details

Type

NTDH

Short description

NTDH utilizing ground heat for residential heating

Location

Wüstenrot

Country

Germany

End users

25 buildings in Wüstenrot suburb

Heat source

Ground/Excess heat

Description

Heat pumps in every building connected to central geothermal network (raising temperature of water heated by agrothermal source); Possible use of waste heat from chillers and waste water treatment plant

Cooling

Yes

Heat source-network connection

HEX (ground); HEX? (excess heat-Missing info)

Booster HP or no for SH

Booster HP, IHEU or DHSU for DHW

TES

Horizontal ground HEX (agrothermal collector); Every building has separate storage

Centralized/ Decentralized TES

Centralised/Decentralised

Costs/Price [€] (Investment; Operation; Cost for the consumer)

Investment: 0.4 mil. € (network also incudes solar panels, biomass boilers and heat recovery from local food market)

Tsource [°C]

10.15 (ground)

Tsupply,min [°C] (network)

Tsupply,max [°C] (network)

Tsupply,min [°C] (at consumer substation)

Tsupply,max [°C] (at consumer substation)

Treturn [°C] (network)

SCOP=(reference annual heating demand)/(seasonal electricity consumption for heating) [-]

4.45

Installed capacity [MW]

0.23; 2.5 (total with excess heat)

Heating demand [MWh/year]

450

Network length [km] (if not specified-pipes, trench specified)

0.5 (trench)

Project area [km2]

0.015

LHD (linear heat density)=(total heat demand)/(length of network) [kWh/m/year]

900 (calculated from data-trench length)

LHPDD (linear heating power demand density)=(installed thermal power capacity)/(network length(pipes)) [kW/m]

5 (calculated from data-trench length)

Reference 1

https://www.carmen-ev.de/biogene-festbrennstoffe/waermenetze/1966-waermenetze-neu-gedacht

Reference 2

https://doi.org/10.1016/j.rser.2018.12.059

Reference 3

https://backend.orbit.dtu.dk/ws/portalfiles/portal/142226895/Untitled.pdf

Reference 4

https://www.mijnwater.com/wp-content/uploads/2019/08/20190729_LIFE4HeatRecovery-first-newsletter.pdf

Reference 5

https://www.bbr-online.de/fileadmin/bbr-daten/Hefte_2013/2013_03/bbr_0313_58_63_Pietruschka.pdf