Task C - Apparatus technology

Task C will deal with the apparatus technology of thermally driven heat pumps and will bring together the broad field of ongoing developments of materials and apparatuses. Even for differing technologies like absorption and adsorption some parts of the apparatus are exposed to the same problems (vacuum, corrosion, evaporator/ condenser efficiency etc.). The aim of this task is to identify the overlap between different technologies and to make synergies possible.
As a basis for well – founded research on the apparatus, properties of materials and working pair will be collected and brought together in a database. 

WP 1 - Methodology Characterization

A lot of working groups are dealing with characterization of thermo - physical properties (heat capacity, conductivity, heat transfer resistance, diffusion coefficients, etc.) and equilibrium properties of sorption working pairs. 
The aim of this working group will be the definition of standards for estimation of the mentioned values and the cross - comparison of samples in different labs.  
 

WP 2 - Database

The database will include available and upcoming materials, available working pairs and as far as possible their material properties, as mentioned in WP1. Additionally the producers of these materials will be collected.
The database will also include an overview about the different labs and their experimental expertise and capacity. Further items and the accessibility of the database will be discussed in the workgroup.
 

WP 3 - Stability

The long term stability of some thermally driven systems is still under development. The aim of WP3 will be the identification of factors influencing the long term stability (like corrosion, inert gases, leakage, tightness, fatigue) by experimental methods (gas analytic, etc.), the definition of accelerated aging for different technologies and the evaluation of methods for keeping the long term stability.
 

WP 4 - Development of components

WP4 is focused on the development of apparatus components. A literature research will give a survey of the market available components (evaporator, condenser, ad- and absorber, auxiliary components like controller, etc.) and the actual topics in research and development for the different technologies.
For identification of synergies the overlap between work pairs and technologies will be discussed and conducted. The results of national projects on component development will be reported. 
 

Task C - deliverables

• A technical report which provides an overview on the different technologies including their potentials and limits

• A description of a standard to determine sorption material properties

• An online database about sorption materials and their properties, material sources and experimental expertise of different labs for heat pumps.

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