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Munich Airport Franz Josef Strauss
Provisioning of district heating, cooling and gas for Terminal 2 and luggage sorting facility

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Project data

Planning and realisation period:1999..2003
Project size:
Sub project B Terminal 2
District heating and district cooling network pipes
appx. 3,7 Mil. €
Sub project GSH
District heating and district cooling network pipes with transfer stations
appx. 2,1 Mil. €
Sub project A
Realignment of district heating, district cooling and gas pipes
appx. 1,1 Mil. €
Sum: appx. 6,9 Mil. €


Munich Airport Center (MAC), Terminal 2 in the background
Munich Airport Center (MAC), Terminal 2 in the background

Client: Generalplaner Technik Ingenieurgesellschaft mbH
Flughafen Muenchen Terminal 2 (CBP + b.i.g.)
Contractor: Leistungsbereich (LB) 28
Consortium Ingenieurbuero W. Roegelein, VBI, Muenchen
Regierungsbaumeister Schlegel GmbH, Muenchen


Information on the project

Terminal 2
Terminal 2

District heating supply of Terminal 2 and luggage sorting facility (GSH)

District heating supply is being realized by the Supply station 145.0 and by connecting to the existing district heating distribution network of Munich Airport at two connection points (double feeding).


Terminal 2
Terminal 2


District heating transmission station for Terminal 2 / planning with direct connection with security equipment according to DIN 4747
District heating transmission station for Terminal 2 / planning with direct connection with security equipment according to DIN 4747

Within Terminal 2 distribution of district heating is realized primarily in level 02. District heating is being distributed to the house substations by 16 transfer stations employing direct connections with a pressure difference of 500 mbar.

In order to supply PCA systems at 24 aircraft stand by positions in the future ductwork has been provisioned.

The airport's heating circuit water network is being operated throughout the year with outdoor temperature dependantly controlled supply line temperatures of 70°C to 130°C. Nominal temperature spread is at 80K.


District heating network with extension for Terminal 2 and luggage sorting facility (GSH)
District heating network with extension for Terminal 2 and luggage sorting facility (GSH)

In order to provide the luggage sorting facility (GSH) with district heating a supply line with nominal width of DN 200 forks from the distribution of the Terminal 2 main building, being directed in the Ramp 3 apron tunnel towards east.

Distribution of district heating within the luggage sorting facility is being realized primarily in level 02. According to the distrcit heating distribution concept of Terminal 2, heat distribution to the house substations is being carried out via seven transmission stations.

In parallel to Terminal 2 ductwork is being provisioned for supplying PCA systems at 25 aircraft stand by positions at some later instance.


District cooling supply of Terminal 2 and luggage sorting facility

District cooling network with extension for Terminal 2 and GSH
District cooling network with extension for Terminal 2 and GSH

District cooling supply of Terminal 2 and GSH is being realized up to a maximum power of 13,5 MW or 860 tons/hour respectively by the extended supply station 145.0.

In the MAX section the connection to the existing district cooling network is being realized in a nominal width of DN 400. In order to enlarge the transport capacity the district cooling pipe in the section of the central building is being reinforced by a load balancing pipe of DN 250.


Installation of district heating and district cooling distribution - Connection of Terminal 2 and luggage sorting facility DN 400
Installation of district heating and district cooling distribution - Connection of Terminal 2 and luggage sorting facility DN 400
Installation of district heating and district cooling distribution - Connection of Terminal 2 with lateral compensation DN 400
Installation of district heating and district cooling distribution - Connection of Terminal 2 with lateral compensation DN 400

Distribution of district cooling within Terminal 2 is being realized primarily in level 02. District cooling is being distributed by 16 transfer stations towards the house substations as direct connections PN 10/16 with a pressure difference of 1.000 mbar.

The district cooling network is being operated in summer with a supply line temperature of 5,5°C and a nominal spread of 13,5 K.

The circulating cooling water is being cooled down with free cooling at the supply station 145.0 thorughout the cold seasons. The supply line water temperature is being raised up to appx. 11°C accordingly.

A supply line for the luggage sorting facility in nominal width DN 300 forks from the district cooling distribution of the Terminal 2 main building towards the east.


District cooling coupling distributor in the GSH, level 02 for load balancing / Combined operation of supply station 145.0 and sub station east, floor plan
District cooling coupling distributor in the GSH, level 02 for load balancing / Combined operation of supply station 145.0 and sub station east, floor plan
District cooling coupling distributor in the GSH, level 02 for load balancing / Combined operation of supply station 145.0 and sub station east, elevation
District cooling coupling distributor in the GSH, level 02 for load balancing / Combined operation of supply station 145.0 and sub station east, elevation

District cooling originating from Terminal 2 is being connected to a coupling distributor at the luggage sorting facility. In load cases that cannot be satisfied by the Supply station 145.0 a yet to be planned district cooling sub station east injects cooling water to the forementioned coupling distributor which acts as load balancer.
From this coupling distributor district cooling is being distributed to seven sub stations in the area of the GSH.



Pressure distribution scheme district cooling network at combined operation of supply station 145.0 and sub station east
Pressure distribution scheme district cooling network at combined operation of supply station 145.0 and sub station east

Complexity of the district heating and cooling supply of Terminal 2 and luggage sorting facility

Installation of district heating and district cooling pipes - integration of Terminal 2 and luggage sorint facility in the installation tunnel
Installation of district heating and district cooling pipes - integration of Terminal 2 and luggage sorint facility in the installation tunnel

In the course of the airport's extenstion with Terminal 2 and luggage sorting facility the following supply areas with heat consumer installations are being connected to the district heating network:


Installation of district heating and cooling distribution in Terminal 2 - pipe compensation
Installation of district heating and cooling distribution in Terminal 2 - pipe compensation

Nominal temperatur spread

Supply line:130°CGSH at total17,6 MW202,0 tons/hour
Return line:50°CTerminal 2 at total22,8 MW244,8 tons/hour

In the course of the airport's extenstion with Terminal 2 and luggage sorting facility the following supply areas with cooling consumer installations are being connected to the district cooling network:


Installation of district heating and district cooling distribution in Terminal 2 - anchor point
Installation of district heating and district cooling distribution in Terminal 2 - anchor point

Cooling water temperature spreads at present

Supply line:5°C
Return line:17,2°C
Return line GSH:18°C

Planning complexity of the district heating and cooling distribution networks in the area of Terminal 2 and luggage sorting facility

Installation of district heating connection pipe DN 200, soil covered, plastic jacket pipe
Installation of district heating connection pipe DN 200, soil covered, plastic jacket pipe

District heating network, soil covered

District heating network, in-duct laid pipeline


Installation of district heating connection pipe DN 200, soil covered, plastic jacket pipe
Installation of district heating connection pipe DN 200, soil covered, plastic jacket pipe

District cooling network, soil covered

District cooling network, in-duct laid pipeline


Installlation of district heating distribution pipe DN 200, soil covered, plastic jacket pipe
Installlation of district heating distribution pipe DN 200, soil covered, plastic jacket pipe

Gas pipe network, soil covered

House sub stations / transmission stations


Installation of district heating distribution pipe DN 200, soil covered, plastic jacket pipe
Installation of district heating distribution pipe DN 200, soil covered, plastic jacket pipe


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