Solar Process Heat and Process Intensification

IEA SHC Task 49/IV - Deliverable B5 - Potential Enhancement of Solar Process Heat by Emerging Technologies

“…Intensification strategies with effects on solar heat supply have been summarized by Muster and Brunner [1].…”

“…The step "generating design concepts" then needs to be expanded to "analysing effects on overal energy management" (Figure 2). This means, that the view of the overall production system is important and the interaction between the processes must be analysed [1]. There is currently a strong trend towards hybrid energy supply where industry is seen as one player within large supply grids of heat and electricity.…”

“…Due to increasing heat transfer coefficients in comparison to stirred tanks, they enable low temperature heat supply and theoretically enable a better integration of solar process heat [1].…”

“…In such designs the collectors can operate at target temperatures close to (or even below in case of preheating only) the process temperatures. A possible process scheme has been shown in [1]. Basically the MD process can be applied to any separation challenge as far as the membrane is suitable (thus non-wetting) in the respective process liquid.…”

“…Generally, there are several strategies to increase of the heat transfer rate or overcome heat transfer limitations [1], such as:  increase of temperature gradients,  increase of heat transfer area,  increase of heat transfer coefficient , or  change to energy supply without thermal gradients…”