BSR.002 — District heating and combined heat and power in combination — The running time of the CHP is sustainably increased

2021-4-8

Initial situation

The new DHL mega parcel center in Bochum was built on the former Opel factory site. The parcel center has its own combined heat and power plant for supplying electricity and heat to the parcel center. However, the property not only receives electricity or heat, but also feeds the heat produced in the cogeneration plant into the network of the Bochum municipal utility.

The company ewers supplied two large special district heating transfer stations for this purpose. One station with 1,500 kW supplies the 34,000 m2 hall and the 4-story office building with an area of 2,700 m2 with heat from the district heating network of Stadtwerke Bochum.

The second station, with 700 kW, feeds the surplus heat generated in the company’s own CHP unit back into the Bochum district heating network.

If you have any questions, please do not hesitate to contact us.

The ewers solution

District heating transfer station 1 for heat supply

Power: 1.500 kW

Nominal width: DN80 / DN80

Pressure stage: PN25 / PN6

Heating circuits:
Module 1 with 750 kW
Module 2 with 750 kW

Temperatures:
Primary 120 / 60 °C
Secondary 90 / 45 °C

ewers BSR.002 - Baustellenreport - Fernwärme Übergabestation 1 zur Einspeisung der Wärme

Constructive illustration of the ewers system 1 for feed-in

The ewers solution

District heating transfer station 2 for feeding back into the district heating network

Power: 700 kW

Nominal width: DN80 / DN80

Pressure stage: PN25 / PN6

Temperatures:
Primary 85 / 60 °C
Secondary 90 / 65 °C

ewers BSR.002 - Baustellenreport - Fernwärme Übergabestation 2 zur Rückeinspeisung ins Fernwärmenetz

Constructive representation of the ewers plant 2 for feeding heat back into the grid

ewers BSR.002 - Baustellenreport - Die ewers Anlage 1 zur Einspeisung der Wärme aus dem Bochumer Fernwärmenetz

The ewers plant 1 for feeding in the heat from the Bochum district heating network

ewers BSR.002 - Baustellenreport - Die ewers Anlage 2 zur Rückeinspeisung direkt am BHKW

The ewers plant 2 for feeding back directly at the CHP unit

ewers BSR.002 - Baustellenreport - BHKW zur Strom- und Wärmeerzeugung

CHP for power and heat generation

ewers BSR.002 - Baustellenreport - Das DHL Mega-Paketzentrum in Bochum Foto: Deutsche Post DHL

The DHL Mega Parcel Center in Bochum | Photo: Deutsche Post DHL