Research of core fuel management using TVS-2006 fuel assemblies in VVER-120

As nuclear technic is improving and nuclear equipment manufacture level is heightening, the newly-built nuclear plants can generate more electricity. Recently Russia propose the new core style VVER-1200, which uses the advanced TVS-2006 type fuel assemblies. Comparing with VVER-1000, the fresh core style increases the fuel loading, heightens power level, and increases the economic benefit. Using KASKAD program package, the authors model and analyse VVER-1200 core; on this basis, the authors make a research about fuel management, obtaining many fuel management programs for long fuel cycle to achieve the different cycle length goal; in each program, the important safety parameters satisfy the design requirements. Based on results and attribute compare, this paper presents the recommended program. The recommended program which satisfy requirements about higher power level and fuel utilization, will increase the economic benefit of the plant obviously. (authors)