High efficient steam bottoming cycle is indispensable for high efficient combined cycles. This paper proposed a transshipment model for cascade utilization of the exhaust heat of gas turbine. The model took into consi...High efficient steam bottoming cycle is indispensable for high efficient combined cycles. This paper proposed a transshipment model for cascade utilization of the exhaust heat of gas turbine. The model took into consideration the requirements and limits by combined cycle, design condition, control, heat transfer, etc.. The model can be easily integrated with other processes to be suitable for the more complicated combined cycles. The flowsheet and parameters of high efficient steam b0ttoming cycle can be generated aut0matically by combining the transshipment model with linear or nonlinear optimization algorithm.展开更多
The static off-design performance simulating model of advanced steam bottom cycle in combined cycle plant is made with a new concept that temperature blocks are the basic units for Heat Recovery Steam Generator (HRSG)...The static off-design performance simulating model of advanced steam bottom cycle in combined cycle plant is made with a new concept that temperature blocks are the basic units for Heat Recovery Steam Generator (HRSG). At the same time, a new method is necessary for making computer program easily, and computing it quickly and steadily. Then some examples are calculated, including simple pressure, multipressure and reheat structures.Thus we can draw some conclusion about the off-design performances of the advanced bottom cycles, and evaluate them comparatively.展开更多
文摘High efficient steam bottoming cycle is indispensable for high efficient combined cycles. This paper proposed a transshipment model for cascade utilization of the exhaust heat of gas turbine. The model took into consideration the requirements and limits by combined cycle, design condition, control, heat transfer, etc.. The model can be easily integrated with other processes to be suitable for the more complicated combined cycles. The flowsheet and parameters of high efficient steam b0ttoming cycle can be generated aut0matically by combining the transshipment model with linear or nonlinear optimization algorithm.
文摘The static off-design performance simulating model of advanced steam bottom cycle in combined cycle plant is made with a new concept that temperature blocks are the basic units for Heat Recovery Steam Generator (HRSG). At the same time, a new method is necessary for making computer program easily, and computing it quickly and steadily. Then some examples are calculated, including simple pressure, multipressure and reheat structures.Thus we can draw some conclusion about the off-design performances of the advanced bottom cycles, and evaluate them comparatively.
