Experimental investigation of steam losses, temperature and vibration in labyrinth seal used in steam turbine
Journal Title: PARIPEX-Indian Journal of Research - Year 2016, Vol 5, Issue 2
Abstract
The Experimental investigation on design of steam turbine labyrinth seal addresses the issue of steam turbine efficiency. A specific focus on labyrinth seal profile for turbine sealing, evaluates the effectiveness of certain Chromium and Nickel in resisting creep and fracture in turbine labyrinth sealing. They are capable of thermal and chemical conditions in labyrinth seal substrate to prevent the corrosion when exposed to high pressure steam. The efficiency of the steam turbine is a key factor in both the environmental and economical impact of any coal-fired power station. To increasing the efficiency of a typical 660MW turbine by 1% reduces steam losses. In this connection an attempt is made on steam turbine labyrinth seal performance. Based on the research presented modifications to steam turbine, the labyrinth seals can be made to increase turbine efficiency. The results and conclusions are presented for a study concerning the durability problems experienced with steam turbine labyrinth seals [17]. This paper addresses the issue of steam turbine efficiency by discussing the overhaul design of steam turbine labyrinth seals. A specific focus has been on labyrinth seal profile, material used in the production of labyrinth seals, and the factors that cause seal failure and therefore the failure of the turbine itself. This prevents turbine failure due to labyrinth seal erosion and cracking. In particular, this project evaluates the effectiveness of certain silicon carbide sealing material and in resisting creep and fracture in turbine labyrinth seals.
Authors and Affiliations
H. G. PATIL, Dr. V. G. ARAJPURE
Keywords
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