Development of a PbLi heat exchanger for EU DEMO fusion reactor: Experimental test and system code assessment

Preliminary design of a helical coil steam generator mock-up for the CIRCE facility for the development of DEMO LiPb heat exchanger

“…It is worth to mention that, despite the different fluid used in CIRCE facility (LBE) respect to the one used in the DEMO WCLL and DCLL BB concepts (LiPb), both fluids rely on the same formulations of the Nusselt number. Therefore, it is possible to find a correspondence between LBE and PbLi, two scaling methods [11][25], i.e. preserving the convective heat transfer (method #1) [13] and both the thermal power and temperature difference (method #2) [12].…”

“…Therefore, it is possible to find a correspondence between LBE and PbLi, two scaling methods [11][25], i.e. preserving the convective heat transfer (method #1) [13] and both the thermal power and temperature difference (method #2) [12]. Using such methods it is possible to make the tests carried out in LBE representative for systems operating with LiPb.…”

“…In this framework, research activities have been undertaken at ENEA Brasimone Research Centre to investigate the LiPb technology [7][8] [9]. A dedicated task has been focused to support the development of a LiPb/water heat exchanger [10] [11], investigating the two concepts proposed in order to demonstrate the technological feasibility and performances by means of experimental tests, as well as to assess the capability of numerical tools in providing reliable simulations of their thermal-hydraulic behaviour.…”

“…This solution is characterized by a very compact geometry and it assures a high power removed, taking up the minimum amount of space. The THETIS TS will replace the HERO (Heavy liquid mEtal -pRessurized water cOoled tube) TS which has been previously used to investigate on the technological feasibility and the thermal-hydraulic performances of a SGBT [11][12] [13].…”

Heat Transport in Rotating Annular Duct: A Short Review

“…Heat transport throughout rotating annular geometries covers a large spectrum of applications from natural to engineering domains. In the energy systems, it has shown great potential for the rotating wall cooling systems of electrical engines [1], turbine generators [2], rotary kilns [3], supercritical CO 2 extraction [4], and nuclear fusion reactors [5], to cite a few examples. The physical problems are shown in Figure 1 in the cylindrical coordinate system (r, θ, z).…”