Comparative Analysis of the Efficiency of Cast Iron Boilers at Power Plants

One of the directions in the development of energy is the study and implementation of combined cycle plants. It is possible to solve a wide range of design and operation problems using mathematical models. A steam-gas power unit based on a GE 6FA gas-turbine unit was studied in this work. In this case, we considered a modernized thermal circuit with an afterburner. In this paper, we consider the method of parametric identification of a mathematical model of a gas turbine in a steady state. The steady-state is taken equal to 80 MW. The difficulty of creating mathematical models of combined-cycle power units is the organization of the computational process. Schematically, the structure of a mathematical model can be represented as a hierarchical set of software modules. The upper-level modules, based on the input data, organize a computational process that includes the organization of calls in the required sequence to the lower level modules in order to form a system of equations that determine the conditions for the combined operation of a combined cycle gas turbine unit. Dependences of changes in the main energy characteristics of a combined cycle plant are shown. Studies have shown the feasibility of using afterburning devices in the cycle of a combined cycle plant.

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Improving the Efficiency and Reliability of the Internal Heating System on the Example of a Shopping Center

Biryuzova

Glukhanov

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Shopping centers belong to the type of buildings in which all internal engineering systems are present. Therefore, the study of the shopping center, as an example of carrying out work on the application of various proposals for the use of secondary energy in the complex and, consequently, for energy saving and improving reliability and efficiency, is relevant. In addition, the use of various heat carriers allows us to consider the issue of energy saving more widely. The article compares the traditional heat supply system and the combined system, as well as the development of optimal energy-ecological solutions for the design of the heat supply system of a shopping center using the heat of condensation of refrigeration equipment used to comply with the technological process of cooking and storing food. The peculiarity of the proposed solution is that CO2 is used as a refrigerant in the refrigeration system, which is proposed to be used as a heat carrier for heating water in the hot water supply system.

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Comparative Analysis of the Efficiency of Cast Iron Boilers at Power Plants

Cited by 8 publications

References 1 publication

Improving the Methodology for Predicting the Destruction of the Heat Supply System in an Accident

Improving the Methodology for Predicting the Destruction of the Heat Supply System in an Accident

Simulation the operation of a combined-cycle gas turbine unit with an after burning device in a waste-heat recovery boiler

Improving the Efficiency and Reliability of the Internal Heating System on the Example of a Shopping Center

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