Engineered Systems Examples


Brief Summaries of GoldSim Engineered Systems Modeling Applications

Modeling Photovoltaic System Reliability and Performance Using GoldSim

Sandia National Laboratories are using GoldSim software to develop an analytical, scenario-based predictive modeling tool that can be used to help owners, operators, risk managers, and financiers simulate planned PV projects to avoid costly system weaknesses prior to development. Sandia is developing the Photovoltaic Reliability and Performance Model (PV-RPM) with industry partners on behalf of the Solar Energy Technologies Program of the U.S. Department of Energy (DOE).


Long-Term Water Infrastructure Planning for the City of Townsville (Australia)

The City of Townsville is responsible for ensuring the supply of potable water to its constituents. GoldSim modelers at Golder Associates developed a user-friendly, computer-based planning tool capable of modeling existing and planned infrastructure, as well as operational situations. Among other things, the model can be used to optimize water supply reliability and security to urban and industrial customers, and estimate the most cost efficient sequencing of new infrastructure over a 50-year period.


A System-Level Model for Geological C02 Sequestration

The global warming due to increase of CO2 in the atmosphere is one of most urgent issues that we face today. Los Alamos National Laboratory has developed a system-level model for geologic sequestration that tracks the fate of CO2 sequested in geologic reservoirs and is designed to include all associated risks. The system-level CO2 sequestration model, called CO2-PENS (Predicting Engineered Natural Systems) uses GoldSim as the upper level platform.

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Long-Term Plan for Managing Spent Nuclear Fuel in South Korea

By 2030, South Korea intends for nearly 60% of the country’s power generation to come from nuclear reactors. This commitment to expanding its use of nuclear energy will result in an increase of Spent Nuclear Fuel (SNF). To manage this, the Korea Atomic Energy Research Institute (KAERI) used GoldSim to develop an “integration model” that predicts the generation, storage, transport, shipping, reprocessing and disposal of SNF and associated wastes over the course of the next 100 years.

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Risk and Reliability Analysis for a Lunar Base Station

In this training model, a hypothetical NASA lunar base was simulated for its 20-year design life. Each of the major base subsystems is susceptible to breakdowns, in addition to a variety of disruptive events that could occur. The model illustrates the versatility of the simulation approach for evaluating systems that traditionally might use a fault-tree methodology.


Risk and Reliability of an Unmanned Planetary Exploration Mission

In this training model, a hypothetical NASA planetary exploration mission was simulated. The model simulates all of the major components of the mission as it progresses through its phases: launch, interplanetary cruise, orbit insertion, landing, and exploration. The model simulates failure modes for the various mission components along with dynamic behavior such as consumption of propellant for attitude control and the effects of solar flares.


Hydropower Plant Simulation

This model simulates the Great Falls Hydropower Plant Project, a series of five hydroelectric dams near Great Falls, Montana. The model incorporates many features present in customized hydroelectric power programs, such as tabulated functions of power, output as a function of turbine flow, and reservoir volume as a function of pool elevation. The model allows the user to experiment with a few operating strategies and evaluate the results in terms of power generation, downstream flows, and pool elevations.


Reliability and Throughput of a Mine Ore Processing Facility

The throughput of a mine's processing facilities is affected in complex ways by the reliability and availability of its components. A GoldSim model was constructed to simulate the performance of a mine's crusher system to maximize the financial effectiveness of the maintenance program by capturing a fully-coupled dynamic system with an interplay between the performance of the individual components and the internal and external stockpiles for the ore and concentrate.


Water Management Operations Model for Open-Pit Copper/Zinc Mine

GoldSim was used to build a water management simulator for a large open-pit copper/zinc mine in Peru. The purpose of the model was to provide on-site personnel with a predictive tool to quickly assess the potential impacts of operational changes with respect to environmental compliance. To simplify use of the model for site personnel, a customized user interface is provided to an easy access to define initial conditions and to quickly see important results.


Management of Coal Combustion Products at a Coal-Fired Power Plant

GoldSim was used to evaluate the economic and environmental impacts associated with various coal combustion product (CCP) management scenarios at a power plant in North Dakota. Results of the modeling effort led to the development of a long-term comprehensive CCP management plan, which will minimize the impacts on power cost for utility's rate payers.


Evaluation of Alternative Closure Strategies for a Smelter Site

GoldSim was used to compare the performance metrics of alternative closure actions for a smelter site and determine the environmental and financial impacts for each of the alternatives. Uncertainty about the closure activities and the system conditions were explicitly represented in the model. Based on the modeling, an alternative plan was developed that would save an estimated $20 million over the projected duration of the closure activities.


Process Simulation to Support the Design of a Radioactive Waste Handling and Packaging Facility

GoldSim was used to model the surface and sub-surface facility designs for the proposed Yucca Mountain Repository. The objectives of these models were: 1) to provide a tool to help verify that the high-level design requirements were complete, integrated, and robust, 2) to provide real-time decision analysis support to identify the robustness of the design to meet throughput requirements and to evaluate various design concepts, 3) to provide a tool for evaluating interfaces with the other systems (e.g., transportation, and 4) to provide a tool for evaluating alternative scenarios and operating strategies.



Making Better Decisions In An Uncertain World