Abstract: Nonsynchronous excitation under low volume operation is a major risk to the mechanical integrity of last stage moving blades (LSMBs) in lowpressure (LP) steam turbines. These vibrations are often induced by a rotating ...

Abstract: The diversification of power generation methods within existing power networks has increased the requirement for operational flexibility of plants employing steam turbines. This has led to the situation where steam turbines ...

Abstract: This study examines experimentally the cooling performance of narrow impingement channels as could be castin in modern turbine airfoils. Full surface heat transfer coefficients are evaluated for the target plate and the ...

Abstract: The development of integrally cast turbine airfoils allows the production of narrow impingement channels in a doublewall configuration, where the coolant is practically injected within the wall of the airfoil providing ...

Abstract: Integrally cast turbine airfoils with wallintegrated cooling cavities are greatly applicable in modern turbines providing enhanced heat exchange capabilities compared to conventional cooling passages. In such arrangements, ...

Abstract: This paper examines the applicability of a triple layer of thermochromic liquid crystals (TLCs) for the determination of local heat transfer coefficients using the transient liquid crystal (LC) technique. The experiments ...

Abstract: The current capabilities of the foundry industry allow the production of integrally cast turbine airfoils. Impingement cooling effectiveness can be then further increased due to the manufacturing feasibility of narrow ...