Environmental Engineering Reference
powered by 176m 2 of VTCs at T h 95/88 ◦ C, T c 29/35 ◦ C and T o 22/16 ◦ C. A 5.0m 3
cold water storage tank was also installed as a buffer (Ohn, 1995; Karbach et al .,
1997; Karbach 1998).
The office building of the Ott & Spieß company in Langenau, Germany (started in
1998), is equipped with a 35 kWACMwhich is driven by 30m 2 of VTCs. A 2.0m 2 hot
water storage tank and a 1.0m 3 cold water buffer tank are also installed. The operating
parameters are T h 76/71 ◦ C, T c 24/29 ◦ C and T o 17/13 ◦ C at a COP of 0.73 (Moßle,
2000; Henning, 2001).
Two further projects are located in Berlin, Germany, each with two solar-assisted
ACMs (2000). In the administrative building of the German Federal Information Min-
istry (BPA) there are two 44 kWWFC-10ACMs installedwith a COP of 0.73, powered
by 230m 2 of VTCs and 1.6m 3 hot water storage tanks with the operating parameters
T h 88/82 ◦ C, T c 26/32 ◦ C and T o 16/10 ◦ C. The second administrative building is the
German Federal Ministry of Traffic, Building and Housing (BMVBW). Here there
are also two solar-assisted, single effect WFC-10 ACMs installed, each with a 42 kW
cooling capacity and a COP of 0.73. The solar heat is produced by 210m 2 of high-
performance flat plate collectors (FPCs) and stored in 6.0m 3 hot water storage tanks.
There is also a 0.5m 3 cold water storage tank for the chilled water. The operating
parameters are T h 88/82 ◦ C, T c 27/35 ◦ C and T o 18/12 ◦ C (Albers, 2002).
W Zander Holding AG company built an office and production building
in Weilimdorf, Germany, and installed a single effect ACM with a nominal cooling
capacity of 650 kW and 360m 2 of VTCs for a solar-assisted cooling systemwhich has
been in operating since 2000. The operating temperature ranges are for T h from 65 to
95 ◦ C, for T c from 22/27 to 27/32 ◦ C and for T o from 12/8 to 21/15 ◦ C (Wolkenhauer
and Albers, 2001).
Further commercial applications since 2001 include the Hotel Rethymno Village
in Greece where a 105 kW H 2 O/LiBR ACM is installed with 500m 2 of FPCs and
also seven hot water storage tanks with a total of 10.0m 3 used for solar heating. An
additional project is the Hotel Olympic II in Greece where a 105 kW ACM has also
been running since 2001. There are 450m 2 of FPCs and five hot water storage tanks
with a total of 5.0m 3 installed (Balares, 2003).
In Spain the office building of the Viessmann company in Madrid has a single effect
Yazaki WFC-30 ACM with 105 kW cooling capacity and 105 m 2 of FPCs. There are
no published operational results yet. A further project is a reconstructed office building
(EAR Tower) in Pristina, Kosovo, where two WFC-10 ACMs each producing 45 kW
of cooling capacity have been in operation since 2003. They are solar driven by 227m 2
of FPCs at operating temperatures of T h 87/77 ◦ C, T c 25/31 ◦ C and T o 13.5/8.5 ◦ C and
a COP of 0.7. A 4.0m 3 hot water and a 1.0 m 3 cold water storage tank are used (Holter
and Mei ner, 2003).
The project in an office building at Basse Terre, Guadeloupe, with a 30 kWACMand
61.2m 2 of VTCs has also been in operation since 2003. The heating input temperature
T h is 85 ◦ /95 ◦ C at a cooling input temperature T c of 24 ◦ C and T o of 12/7 ◦ C at a COP of