title: Steady state thermal-hydraulic analyses of the MITICA cooling circuits.
abstract: Megavolt ITER Injector Concept Advancement is the full scale prototype of the heating and current drive neutral beam injectors for ITER, to be built at Consorzio RFX (Padova). The engineering design of its components is challenging: the total heat loads they will be subjected to (expected between 2 and 19 MW), the high heat fluxes (up to 20 MW/m(2)), and the beam pulse duration up to 1 h, set demanding requirements for reliable active cooling circuits. In support of the design, the thermo-hydraulic behavior of each cooling circuit under steady state condition has been investigated by using one-dimensional models. The final results, obtained considering a number of optimizations for the cooling circuits, show that all the requirements in terms of flow rate, temperature, and pressure drop are properly fulfilled.
authors.affiliation: Università degli Studi di Padova, Via 8 Febbraio 2, Padova 35122, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Zaupa
authors.affiliation: Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Sartori
authors.affiliation: Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Dalla Palma
authors.affiliation: Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Fellin
authors.affiliation: Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Marcuzzi
authors.affiliation: Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Pavei
authors.affiliation: Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Rizzolo