A new quasi-static cogeneration model

摘要: A new quasi-static model has been developed to simulate steam turbine cogeneration plants with varying loads. The model is designed to bridge the gap between static design point models that could not accommodate part—load conditions and complex part-load models, which are too expensive for small-scale cogeneration proposals. In addition, the model contains economic analysis tools to analyze the thermoeconomic performance of the plantand conduct a cash flow analysis. The model consists of four submodels—a load, system, plant, and economic model. The load submodel drives the cogeneration plant simulation, supplying utility demands to the system models. The system submodels calculate the steam required by the system components to meet the utility demands. The plant suhmodel then predicts turbine and boiler performance as they meet the steam demand. The primary plant submodel outputs …