29th Symposium on Fusion Technology (SOFT 2016)

P1.006 Detailed design of ITER CCWS, CHWS and HRS: Challenges experienced and their solutions

5 Sep 2016, 14:20

1h 40m

Foyer 2A (2nd floor), 3A (3rd floor) (Prague Congress Centre)

Board: 6

Poster A. Experimental Fusion Devices and Supporting Facilities P1 Poster session

Speaker

Ajith Kumar (Cooling Water System)

Description

While the decisive feat of any concept is ‘successful implementable design’, the process of converting the concept into practically executable design is critical and challenging. It is usual to initiate any design on the basis of challenges visible during the conceptualization, as no project can really be a repeat of another. However, during conceptual design phase, it may not be possible to include all key interfaces and practical issues as they emerge progressively with the progress of design. Unforeseen challenges emerged and, along with the foreseen ones, tested the progress of detailed design of ITER Component Cooling Water System (CCWS), Chilled Water System (CHWS) and Heat Rejection System (HRS). ITER being ‘one-of-a-kind’ project, has unique and very conservative design requirements. While trying to meet these requirements through system design, revisiting of those requirements was essential so as to complete the design within the constraints. In addition, as some of the auxiliary client system designs progressed through prototyping, new or revised requirements were identified. Since ITER is an experimental facility, accommodating the provisions like early operation, partial operation, capacity augmentation influenced the progress of detailed design. In a project like ITER, where the interfaces are complex and rigid, the development and implementation of the system design was challenging, given the fact that multiple collaborating agencies were performing concurrent engineering. This paper captures the challenges faced during the detailed design phase of ITER CCWS, CHWS and HRS and describes the solutions that were eventually found in addressing those challenges while maintaining compliance to the technical requirements