Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Luca Bozzi"'
Publikováno v:
Volume 3A: Heat Transfer.
In order to achieve significant secondary air savings in heavy duty gas turbines, a remarkable item of improvement is the reduction of seal flows for turbine stator-rotor cavities. The optimization of such flows allows to avoid waste of air, obligato
Autor:
Luca Bozzi, Alessandro D. Ramaglia
Publikováno v:
Volume 3C: Heat Transfer.
According to current trends in the energy market, heavy duty gas turbines are increasingly being used to fill gaps in the power energy supply and are less frequently operated in pure steady-state base load conditions. This tendency implies more rapid
Publikováno v:
Volume 4: Heat Transfer, Parts A and B.
The energy market development in the last decade has been influenced by several driving factors. To meet the strict customers’ requirements (related to low emissions, flexibility and high performances), operate gas turbine plants safely over a vari
Autor:
Enrico D’Angelo, Luca Bozzi
Publikováno v:
Volume 4: Heat Transfer, Parts A and B.
High turn-down operating of heavy-duty gas turbines in modern Combined Cycle Plants requires a highly efficient secondary air system to ensure the proper supply of cooling and sealing air. Thus, accurate performance prediction of secondary flows in t
Publikováno v:
Volume 5: Heat Transfer, Parts A and B.
Several types of forces give a contribution to the axial thrust of gas turbines shafts: flow-path forces (due to blades, endwalls and shrouds of compressor and turbine rows), forces acting on the surfaces of rotor-stator cavities, disks forces (due t
Publikováno v:
Volume 5: Heat Transfer, Parts A and B.
Different labyrinth seal configurations are used in modern heavy-duty gas turbine such as see-through stepped or honeycomb seals. The characterization of leakage flow through the seals is one of the main tasks for secondary air system designers as we
Publikováno v:
Volume 3: Controls, Diagnostics and Instrumentation; Education; Electric Power; Microturbines and Small Turbomachinery; Solar Brayton and Rankine Cycle.
Italian power generation market is living today a period of substantial changes due to the liberalization process, climate issues, natural gas price fluctuation and the uncertain future of nuclear and coal. In this framework, many gas turbine power p
Publikováno v:
Volume 4: Heat Transfer, Parts A and B.
Combined cycle and partial load operating of modern heavy-duty gas turbines require highly efficient secondary air systems to supply both cooling and sealing air. Accurate performance predictions are then a fundamental demand over a wide range of ope
Publikováno v:
Volume 4: Heat Transfer, Parts A and B.
In order to improve performance of heavy-duty gas turbines, in terms of efficiency and reliability, accurate calculation tools are required to simulate the SAS (Secondary Air System) and estimate the minimum amount of cooling and sealing air to ensur
Autor:
Bruno Facchini, Luca Innocenti, Luca Bozzi, Cosimo Bianchini, Mirko Micio, R. Da Soghe, Stefano Traverso
Publikováno v:
Volume 4: Heat Transfer, Parts A and B.
In high performance heavy-duty engines, turbine inlet temperature is considerably higher than the melting point of the metals used for turbine components e.g. nozzle guide vanes, turbine rotor blades, platforms and discs, etc. Cooling of those compon