In the research project, the thermal long-term behaviour and basic properties of compound pipes in plastic sheaths (CPPS) are examined. Comparative investigations on PUR, insulation systems of the CPPS manufactured by different processes are carried out for this purpose. CPPS's with FEBIS foam systems are examined, where the polyol component is always a mixture of raw material producers containing polyols. Mechanical and mechanical/thermal properties of the PUR foam are tested on samples from the CPPS and so is the adhesion strength of the PUR foam with the enclosed steel pipe or the surrounding PE sheath pipe in a field experiment. In particular, there are tests on the tangential and axial shear strength, both in the initial state and in t...
District heating networks are used worldwide, especially in Scandinavian countries and also in many ...
The urgent need for revision of the normative test method (EN 253) for the lifetime prediction of di...
International audiencePolymer composite pipes can be exposed to the thermomechanical loading due to ...
The thermal ageing behaviour of pipes in plastic sheaths with R11 or CO_2 driven PUR hard foam was c...
In this research project, the radial creep pressure behaviour of plastic sheath pipes was determined...
Modern societies demand the use of non-fossil and sustainable energy resources. In this sense, distr...
The lifetime of pre-insulated district heating pipes (DHPs) is commonly evaluated using the method d...
At higher operating temperatures, the common plastic-sheathed pipe system cannot be used because the...
This thesis is focused on mechanical loads and moisture related problems with a potential to critica...
The service life analysis of steel pipes at highly stressed places of the distribution network, such...
Pre-insulated district heating pipes (DHP) have been in use during the last forty years. Many improv...
Thermal ageing at elevated temperatures is the standard method to determine the service life of pre-...
The lifetime of pre-insulated district heating pipes is commonly evaluated by thermal ageing at elev...
Technical lifetime prediction of polymeric materials is often based on accelerated ageing tests at e...
District heating (DH) systems constitute a smart and environmentally friendly solution for energy di...
District heating networks are used worldwide, especially in Scandinavian countries and also in many ...
The urgent need for revision of the normative test method (EN 253) for the lifetime prediction of di...
International audiencePolymer composite pipes can be exposed to the thermomechanical loading due to ...
The thermal ageing behaviour of pipes in plastic sheaths with R11 or CO_2 driven PUR hard foam was c...
In this research project, the radial creep pressure behaviour of plastic sheath pipes was determined...
Modern societies demand the use of non-fossil and sustainable energy resources. In this sense, distr...
The lifetime of pre-insulated district heating pipes (DHPs) is commonly evaluated using the method d...
At higher operating temperatures, the common plastic-sheathed pipe system cannot be used because the...
This thesis is focused on mechanical loads and moisture related problems with a potential to critica...
The service life analysis of steel pipes at highly stressed places of the distribution network, such...
Pre-insulated district heating pipes (DHP) have been in use during the last forty years. Many improv...
Thermal ageing at elevated temperatures is the standard method to determine the service life of pre-...
The lifetime of pre-insulated district heating pipes is commonly evaluated by thermal ageing at elev...
Technical lifetime prediction of polymeric materials is often based on accelerated ageing tests at e...
District heating (DH) systems constitute a smart and environmentally friendly solution for energy di...
District heating networks are used worldwide, especially in Scandinavian countries and also in many ...
The urgent need for revision of the normative test method (EN 253) for the lifetime prediction of di...
International audiencePolymer composite pipes can be exposed to the thermomechanical loading due to ...