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Latest R744 innovations at the German Green Week |
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New R744 prototypes for transport refrigeration and Water Heating Heat Pump were presented in Berlin this week. R744 Technology also featured as a solution to reduce car emissions.
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2007-06-07
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CO2 Technology (R744) was among the chosen environmental solutions for the "Environment Week 2007"(Woche der Umwelt), held in German Presidential Palace on 5-6 June. The environmental technology was presented in various applications.
Transport Refrigeration
Konvekta, leading manufacturer of air conditioning systems for trucks and buses, presented its latest prototype for transport refrigeration with R744 as a working fluid. Next to comparable good cooling performance and considerable less greenhouse gas emissions than current systems, the new system by Konvekta also requires less energy. The model attracted considerable attention during the event, together with other projects from the company related to public transport refrigeration and logistics for commercial refrigeration.
According to Karl Heinrich Schmitt, Konvekta's Board's Chairman: "CO2 has the potential to become the common refrigerant for different applications, from transport refrigeration to Heat Pump Technology."
Supporting this argument, Konvekta's leading engineer on CO2, Michael Sonnekalb, argues that: "In most driving conditions, we see CO2 as the most efficient solution for transport refrigeration."
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CO2 heat pumps & solar energy
The Institute for Thermodynamics at the Technical University of Braunschweig presented an innovative heating system combining a CO2 heat pump and solar energy. The system would be especially suitable to houses with high insulation standards, since CO2 has a thermodynamic advantage compared to conventional refrigerants. The operating point of the heat pump would rise to temperatures ranging in the rage of 55 - 60 °C, where CO2 is high-efficient.
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Car air conditioning
Obrist Engineering, on the other hand, presented CO2 Technology for Mobile Air Conditioning at a specialised workshop. Given the increasing rate of emissions from current systems working with fluorinated gases, R744 (CO2) appears as the sustainable solution worldwide for vehicles. The presentation also pointed out additional advantages from R744 systems, such as simpler functioning, less weight and smaller size compared to current systems.
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More information:
› Website Konvekta
› Website Institute for Thermodynamics / University of Braunschweig
› Read more about the IfT in our Services Section
› Website OBRIST Engineering
› Read more about OBRIST Engineering in our Services Section
› See the related article: Environment Week in Germany features R744
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