Cooling With The Power Of The Sun

Solar Cooling
Solar thermal systems are not only suitable for heating or heating domestic water: Combined with an adsorption system, solar heat can also be used for cooling. This pays off especially in the summer. After all, solar thermal systems are usually dimensioned for spring and fall. Consequently, they produce excess heat during the summer months. At the same time, especially in the hot season, the greatest need for air conditioning.The adsorption units from FAHRENHEIT transform this excessively abundant thermal energy into the cold. This is not only particularly economical and environmentally friendly: The solar system is also better utilized—and protected against overheating and overloading, adding to its longevity.

A Smart Combination

Two further advantages result from the intelligent combination of solar thermal and adsorption refrigeration technology:

The adsorption technology delivers good performance already at 50 ° C. This means that even small ones are enough Flow temperatures from the solar thermal system to maintain the cooling process. Thus, a very high level of solar heat can be used.

During the heating season, the FAHRENHEIT cooling systems can also be used as heat pumps. Due to the low solar heat in winter, additionally usable heating heat is generated in this way.

FRAUNHOFER INSTITUTE FOR SOLAR ENERGY SYSTEMS ISE

SOLAR-DRIVEN COOLING: FRAUNHOFER INSTITUTE FOR SOLAR ENERGY SYSTEMS

2005

The Fraunhofer Institute for Solar Energy Systems (ISE) employs around 1,300 people. His research interests are energy production,

Energy efficiency, energy distribution and energy storage. Since 2005, the ISE has been using an adsorption refrigeration system to cool the canteen in the summer and to heat the supply air in winter. During this many years of use, the adsorption unit was able to convincingly prove its reliability, its low maintenance and its efficiency

Drive source
solar thermal
Drive temperature
70 – 80°C
Cooling capacity (nominal)
6 – 8 kW
Refrigeration temperature
11°C
Recooling
existing cooling system
Commissioning date
2005
Operating hours
2,300 hours
Payback
0.9 years with BAFA funding

ANTONIYKA SCHOOL

SOLAR-POWERED COOLING: ANTONIYKA SCHOOL, UKRAINE

2016

Advanced cooling for model school in Ukraine.

The showcase project was co-organized with Sovasolar Ltd. developed, planned and successfully implemented with an eCoo 2.0 I 30 IPS adsorption machine. The entire school was prefabricated in Finland and delivered to Ukraine by Elemenco Oy.

Outside the cooling period, a solar system generates energy for water heating and space heating, while the three modules of the adsorption chiller cool the building via modern recirculation units in the hot summer. The FAHRENHEIT adsorption chillers are powered by the solar system.

Adsorption chiller
eCoo 2.0 | 30
Location
Kherson, Ukraine
Commissioning date
2016
Drive source
Solar thermal, Savosolar
Cooling capacity
35 kW
Cooling distribution
Air handling unit
Recooling
dry recooler

FASA AG

Room cooling with solar thermal energy: FASA AG

2018

„FASA AG is considered one of the pioneers of solar construction in Germany. With the construction of a new company headquarters in Chemnitz in 2011, with the ENERGETIKhaus® principle, an active sun office building was developed that almost exclusively (more than 90%) covers its energy requirements for heating and hot water via the sun. In 2019, the plant technology was extended by a cooling system. When cooling for the summer months, FASA AG chose FAHRENHEIT for the expert in sustainable adsorption cooling from Halle an der Saale.

For the air conditioning of the offices, the heat of the in-house solar thermal system (solar large storage tank with 110 m³ volume) was used, which delivers exactly the right temperature of 80 to 90 ° C for the operation of the adsorption refrigeration system FAHRENHEIT. Thus, the room cooling is made possible by the eCoo 2.0 I 10 with almost no electricity and CO2 neutral. „

AdKM
eCoo 2.0 | 10
Cold water temperature
17°C
Drive source
Solar large storage (solar thermal)
Further project description
Energetic house with 90% solar heating, solar
Long-term storage layer
110 m³
large thermal collector surface
over 300 m² Recooling
Avoided CO2 emissions
76.8t p.a
Payback
3.3 years

DEUTSCHES PATENTAMT MÜNCHEN

Solar cooling: German Patent Office Munich

2011

Future-oriented adsorption technology for the German Patent Office Munich. In 2011, a geothermal system coupled with solar energy generation was technically and optically integrated into the monument-protected building in flat roof construction during the remedial and energetic refurbishment of the DPMA in Munich.

FAHRENHEIT has been entrusted with using solar heat through four highly efficient and energy-efficient adsorption systems for building cooling during the summer months. Thanks to the combined use of geothermal energy and solar energy, 60% of the energy demand in the main building of the DPMA in Munich will be covered by renewable energy.

Cooling capacity
150 kW
Power sources
380 m2 flat collector field with 6 m3 buffer storage
Recooling
4x RCS dry recooler with fresh water spray
Drive source
Solar thermal, Savosolar
Cooling distribution
Cooling sail

FLORIDA EIS

FOOD COOLING WITH SOLAR HEAT: FLORIDA-EIS MANUFAKTUR GMBH

2013

"We make ice cream out of the sun." The Florida Ice Cream Manufactory had set itself an ambitious goal: it wanted to become the first CO2-neutral ice cream factory in Germany. The special challenge: ice cream production requires a lot of heat for pasteurizing the basic mass as well as a lot of cold for cooling.

The solution resulted from the intelligent combination of a solar thermal system with the FAHRENHEIT cooling systems. Of great advantage here is that the Adsorptionstechnik copes well with the relatively low temperatures from the solar thermal. In 2013, the climate-neutral new location in Berlin-Spandau was inaugurated. Since then, it has been regarded as a flagship project in the area of ​​environmentally friendly and energy-efficient food production

Power sources
Process waste heat solar thermal energy
Drive temperature
60 – 95°C
Cooling capacity (nominal)
60 kW
Cold temperature
10 – 15°C
Recooling
Dry recooler
Commissioning date
2014
Operating hours
8.760 Std