BEGIN:VCALENDAR VERSION:2.0 PRODID:-//pretalx//modelica.simtek.cc//amfc2026//speaker//8UHTXS BEGIN:VTIMEZONE TZID:CST BEGIN:STANDARD DTSTART:20000101T000000 RRULE:FREQ=YEARLY;BYMONTH=1 TZNAME:CST TZOFFSETFROM:+0800 TZOFFSETTO:+0800 END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:pretalx-amfc2026-BDKE8N@modelica.simtek.cc DTSTART;TZID=CST:20260921T135000 DTEND;TZID=CST:20260921T141500 DESCRIPTION:While Modelica has become a standard for multi-domain modeling in various complex engineering fields\, professional and systematic model libraries specifically tailored for the nuclear power sector remain scarce . To bridge this gap\, this paper presents the development of a specialize d Modelica fluid component library for Small Modular Reactor (SMR) systems . Serving as a critical module within the broader CGN_NHR library\, this f ramework bridges the gap between fundamental fluid mechanisms\, equipment- level modeling\, and system-level assembly. We detail the library’s arch itecture\, design philosophy\, and the mathematical formulation of its cor e components. To verify its validity and reliability\, a systemlevel model was constructed and benchmarked against the industry-standard RELAP5 mode l. Comparative results confirm that the proposed library offers high effic iency and accuracy\, establishing a robust technical foundation for the ra pid design\, simulation\, and verification of nuclear power systems. DTSTAMP:20261004T070610Z LOCATION:Energy (R2002) SUMMARY:A Modelica-based Fluid Library for Small Modular Reactors: Design a nd Verification - Sixin Liu\, Hao Hong\, Hong Lv URL:https://modelica.simtek.cc/amfc2026/talk/BDKE8N/ END:VEVENT BEGIN:VEVENT UID:pretalx-amfc2026-BGZSJF@modelica.simtek.cc DTSTART;TZID=CST:20260921T141500 DTEND;TZID=CST:20260921T144000 DESCRIPTION:As the pivotal equipment connecting the primary and secondary l oops of pressurized water reactor nuclear power plants\, the dynamic therm o-hydraulic characteristics of the nuclear steam generator are directly re lated to the safe and stable operation of the unit. However\, traditional modeling approaches suffer from poor versatility and low efficiency\, maki ng it difficult to meet the R&D demands for diverse application scenarios and iterative optimization. Addressing these bottlenecks\, this paper prop oses a modular modeling and dynamic simulation method for nuclear steam ge nerators based on the Modelica language. First\, based on a hierarchical m odeling approach\, component-level models covering plena\, pipes\, heat st ructures\, steam-water separators\, and feedwater plena are constructed to achieve free configuration and visual simulation modeling. Second\, accor ding to the operating principles and structure of the nuclear steam genera tor\, a complete dynamic simulation model is assembled using these compone nt-level models. Finally\, the established model is validated against the RELAP5 code to verify the effectiveness and reliability of the proposed me thod. The results indicate that the Modelica-based steam generator simulat ion model combines high accuracy with high efficiency\, providing signific ant technical support for the rapid design and verification of nuclear pow er systems. DTSTAMP:20261004T070610Z LOCATION:Energy (R2002) SUMMARY:Research on Dynamic Simulation of Nuclear Power Steam Generator Bas ed on Modelica - Hao Hong\, Sixin Liu\, Hong Lv URL:https://modelica.simtek.cc/amfc2026/talk/BGZSJF/ END:VEVENT BEGIN:VEVENT UID:pretalx-amfc2026-9DQNQJ@modelica.simtek.cc DTSTART;TZID=CST:20260922T115500 DTEND;TZID=CST:20260922T122000 DESCRIPTION:Nuclear power systems are complex multi-disciplinary systems in volving thermal hydraulics\, fluid mechanics\, control engineering and ele ctrical engineering. Comprehensive performance analysis and optimization o f such systems require coupled multi-disciplinary modeling and simulation. Nevertheless\, co-simulation via interfaces between separate single-disci pline simulation software brings numerous inherent drawbacks. Hualong One is China’s domestically developed third-generation pressurized water rea ctor. To accelerate system modeling and simulation efficiency\, this paper independently develops the unified multi-disciplinary modeling library CG N_HPR V1.0 based on Modelica and the hierarchical modeling method\, with t he domestic MWorks simulation platform as the core development environment . Adopting a four-tier architecture consisting of basic\, component\, equi pment and system levels\, the library supports modular\, parameterized and visual modeling for streamlined simulation analysis\, and addresses the t echnical bottleneck of insufficient deep coupling in traditional multi-dis ciplinary simulation workflows. Typical operating conditions of Hualong On e are modeled and simulated using the proposed library\, which preliminari ly verifies the validity of the Modelica-based system simulation model. Th e results demonstrate that the Modelica-enabled simulation framework enabl es seamless integration of cross-disciplinary subsystems\, mitigates the d ifficulties in multi-disciplinary coupled simulation for nuclear power pla nts\, and improves overall system analysis and design capacity\, providing key technical support for unit safety assessment and operational optimiza tion. DTSTAMP:20261004T070610Z LOCATION:FMI & MBSE (R2001) SUMMARY:Research on Multi-disciplinary Unified Modeling and Simulation Tech nology of Hualong One System - Cuiting Peng\, Fuhong Luo\, Hong Lv URL:https://modelica.simtek.cc/amfc2026/talk/9DQNQJ/ END:VEVENT BEGIN:VEVENT UID:pretalx-amfc2026-PH3GHZ@modelica.simtek.cc DTSTART;TZID=CST:20260922T135000 DTEND;TZID=CST:20260922T141500 DESCRIPTION:Integrated energy-system models become difficult to reuse when electrical signals\, thermal-fluid states\, supervisory logic\, and evalua tion variables are coupled through inconsistent interfaces. This paper pre sents an OpenModelica platform with unit-explicit cross-domain connectors\ , graphically encapsulated component models\, and a reusable library for r enewable generation\, conversion\, and storage. The thermal loop employs M odelica.Fluid ports and a temperature-dependent SolarSalt medium\, while t he wind and photovoltaic components expose available\, delivered\, and cur tailed power to support source-level curtailment feedback from the energy- management system. A DASSL-based workflow is applied to a full-year Dunhua ng case and complementary parameter-variation cases. The annual simulation maintains complete park electric-load supply\, achieves a heat-load satis faction rate of 90.16%\, and yields an electric LCOE of 0.307 CNY/kWh. Sta tevariable and sensitivity analyses indicate that renewablesource and batt ery sizing govern electrical absorption and economics\, whereas winter the rmal-storage availability and heat-side capacity constrain thermal reliabi lity. The platform therefore links reusable Modelica implementation with l ong-horizon system evaluation without requiring topology-specific reformul ation. DTSTAMP:20261004T070610Z LOCATION:Energy (R2002) SUMMARY:Research on Modeling and Simulation of Integrated Energy System Pla tform Based on OpenModelica - Yuan Yao\, Xiaomeng Dong\, Hong Lv\, Hao Hon g\, Wenji Li URL:https://modelica.simtek.cc/amfc2026/talk/PH3GHZ/ END:VEVENT END:VCALENDAR