| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8068212 | Annals of Nuclear Energy | 2015 | 8 Pages |
Abstract
The Purdue NMR (Novel Modular Reactor) represents a BWR-type small modular reactor with a significantly reduced reactor pressure vessel (RPV) height. Specifically, it has one third the height of a conventional BWR RPV with an electrical output of 50Â MWe. The preliminary design of the NMR-50 including reactor, fuel cycle, and safety systems is described and discussed. The improved neutronics design of the NMR-50 extends the fuel cycle length up to 10Â years. The NMR-50 is designed with double passive engineering safety system, which is intended to withstand a prolonged station black out with loss of ultimate heat sink accident such as experienced at Fukushima. In order to evaluate the safety features of the NMR-50, two representative design basis accidents, i.e. main steam line break (MSLB) and bottom drain line break (BDLB), are simulated by using the best-estimate thermal-hydraulic code RELAP5. The RPV water inventory, containment pressure, and the performance of engineering safety systems are investigated for about 33Â h after the initiation of the accidents.
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Authors
Mamoru Ishii, Shanbin Shi, Won Sik Yang, Zeyun Wu, Somboon Rassame, Yang Liu,