Type

LTDH

Short description

LTDH utilizing existing DH for heating of passive houses

Location

Söndrums Kyrkby in the city of Halmstad

Country

Sweden

End users

New construction multi-family and pair passive houses

Heat source

Existing DH

Description

Existing DH and electrical heaters for peak load supply consumer substation for SH and DHW (SH by heated air)

Cooling

Missing info

Heat source-network connection

MTDH network is connected directly to low energy buildings

Booster HP or no for SH

No (water from DH is used to heat (preheated by solar energy) air which brings heat to consumer)

Booster HP, IHEU or DHSU for DHW

No (network temperatures high enough)

Category

N/A

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

Distribution investment cost: 143 €/m; Annual distribution cost 6.6 €/GJ

Tsupply,min [°C] (network)

60

Tsupply,max [°C] (network)

76

Treturn [°C] (network)

37

Installed capacity [MW]

0.059

Produced heating energy [MWh/year]

255.556

Heating demand [MWh/year]

225

Building heat demand kWh/m2/year

52.222

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

0.47 (trench)

Project area [km2]

0.012

Plot ratio=(building area)/(land area)

0.36

Heat loss [%]

12

Heat density=(delivered heat)/(covered area) [MWh/m2]

0.019

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

472.222

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

0.48

Reference 1

https://www.iea-dhc.org/fileadmin/documents/Annex_X/IEA_Annex_X_Final_Report_2014_-_Toward_4th_Generation_District_Heating.pdf

Number 50