Is the distance between supply side and demand side problematic?

This is a general question for district heating network and s is the main goal of the project. This will be possible in an advanced state of dessicant networks if a certain number of users are already available and large quantities of dessicant will justify sufficiently large pipelines. In any case the energy density can be lower than in standard networks: the H-DisNet has no thermal losses during the transport and there is no need of insulation of the pipeline.

Are high quality pumps necessary to due the corrosivity of some thermal chemical fluids (salt solutions)?

Pumps are indeed expensive at the moment, special if pumps for chemicals or for brine are used. If upscaling, the characteristic of simple swimming pool pumps that separate a plastic pump from moving parts of metal would provide comparable functionality and would probably only need a few extra parts to provide a sufficient long term performance.

Are desiccant networks suitable for installation of new networks mainly, as it is complicated and expensive to add a network into an existing heat work?

Desiccant systems are compatible with existing heat networks, especially if the remaining heat of the network return is further used for regeneration of desiccants. In this way, the two networks are not installed in parallel. A desiccant network will be installed additionally only in specific areas where desiccant services are needed.

In CHP units, supply temperatures are fluctuating and reach levels > 120°C. Will there be problems with crystallization and clogging of tubes?

Temperatures > 120°C would be harmful, but in some case as for MgCl hydrates can lead to degradation. In this case, either another dessicant that takes benefit from high temperatures would be used. Alternatively, an intermediate heating cycle equalizing and regulating the supply temperature can be used. The lower temperature limit depends on the salinity. As the network will be installed below ground level with temperature usually above 0°C, thus there is not a problem.




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