Steam Generator mock-up preliminary design suitable for Pb-Li technology demonstration and code assessment

Abstract

The Power Conversion System (PCS) is designed to remove heat from PHTSs and to ensure an efficient thermal power conversion to electricity. The Dual Coolant Lithium Lead (DCLL) breeding blanket concept is based on two coolant fluids flowing into two independent circuits: a helium circuit, cooling first wall, and a PbLi circuit, removing heat generated in the breeding zone (BZ). The steam generator connected to PbLi system is prototypical, therefore experimental tests are required to demonstrate technological feasibility, performances and to assess capability of codes in providing reliable simulations of the behavior. The objective of the activity is to support the design of a PbLi/water steam generator and the experimental campaign defining test matrix and expected outcomes. Two steam generator configurations are analyzed using a modified version of RELAP5/Mod3.3 (R5): the Steam Generator Bayonet Tube (SGBT) and the Helical Coil Steam Generator (HCSG). The experimental mock-up of these configurations will be tested in CIRCE facility at ENEA Brasimone RC, which is currently the largest and most powerful heavy liquid metal facility in operation. Finally, numerical simulations are employed to support the design of the mock-ups and the experimental campaign.

Experimental Investigation on CIRCE-HERO for the EU DEMO PbLi/Water Heat Exchanger Development

“…For each test, the boundary conditions to be included in the test matrix were defined by means of a preliminary numerical simulation using the system thermal-hydraulic (STH) code RELAP5-3D © Ver. 4.3.4 [4,32]. Table 1 summarizes the conditions assumed for the five tests.…”

Investigation of heat transfer in a steam generator bayonet tube for the development of PbLi technology for EU DEMO fusion reactor

“…A set of tests [4] has been designed for CIRCE facility in HERO configuration in order to achieve experimental data under working conditions relevant for the EU DEMO fusion reactor heat exchanger [3], [19]. The boundary conditions have been defined performing a preliminary numerical simulation activity using RELAP5-3D© Ver.…”

“…The boundary conditions have been defined performing a preliminary numerical simulation activity using RELAP5-3D© Ver. 4.3.4 thermal-hydraulic system code [6], [19].…”

Information System Design COVID-19 with Prototype Model

“…Interface description of the application that will be created. In the design, some several pages and menus can be accessed by the admin and user [15]. This design illustrates the flow of the application SI-COVID 19.…”