.... To exacerbate and complicate this additional type of fatigue damage, power plant design pressures and temperatures are rising, new materials are being introduced, pipes and attached components are becoming increasingly thick, and owners are requiring power plants to heat-up and cool-down at faster rates. Also...

...Stanley Yokell This paper discusses factory and field pressure testing of tubular heat transfer equipment such as closed feedwater heaters, steam surface condensers, and power plant auxiliary heat exchangers built in accordance with Section VIII, Division 1 of the ASME Boiler and Pressure Vessel...

... deformations of high temperature pipes in power plants. Figure 1 is a front view of the sensing device mounted on a pipe. It is fastened around the outer periphery of a pipe. The space between the device and the pipe allows the minor removal of the thermal insulation materials that is needed to avoid...

...Kunio Hasegawa; Toshiyuki Meshii; Douglas A. Scarth One of the more common modes of degradation in power plant piping has been wall thinning due to erosion-corrosion or flow-accelerated corrosion. Extensive work has been performed to understand flow-accelerated corrosion mechanisms and develop...

... and thermal gradients. To exacerbate this, power plant design pressures and temperatures are rising, new materials are being introduced, pipes and attached components are becoming increasingly thick, and owners are requiring power plants to heat-up and cool-down at faster rates. Also, power plant owners...

...Andrew Morris; Chris Maharaj; Miltiadis Kourmpetis; Ian Dear; Amit Puri; John Dear Sensors for monitoring creep strain in high-pressure steam pipes and other power plant components are subjected to very demanding environmental and operational conditions. It is important that the sensors...

... in Fossil Power Plants ,” ASME J. Pressure Vessel Technol. 0094-9930 10.1115/1.556187 , 122 , pp. 305 – 316 . Viswanathan , R. , and Stringer , J. , 2000 , “ Failure Mechanisms of High Temperature Components in Power Plants ,” ASME J. Eng. Mater. Technol. 0094-4289 10.1115/1.482794...

... stresses can possibly be controlled and reduced by using countermeasures. Not only thermal stress behavior but also the prediction of the microstructural phase during welding heat cycles is very important. High-strength steels or martensitic stainless steels are used in many power plant components...

...Raymond K. Yee; Mike Kapper Pressurized vessels such as a steam drum in a typical power plant can often experience in-service cracking. Structural integrity assessment methodology can be a useful tool to determine the suitability of a vessel for service. This methodology may include fitness...

... and its effect on growth mechanisms. 15 07 2005 06 10 2005 protective coatings corrosion protection steel alloys construction components power plants oxidation power stations metallic high-temperature materials corrosion layers coatings SNMS SIMS SEM TEM EPMA RBS...

... apparatus to actual power plant piping system. An analysis indicates that the pressure at the elbow, P e , depends on the pipe properties, such as cross sectional area, A p , of the pipe; pipe friction factor, f ; initial slug mass, m s ; upstream pressure, P...

... steam turbines power plants nuclear power stations neural nets eddy current testing pressure vessels nondestructive testing Eddy current inspection is commonly used to test the integrity of steam generator tubes as pressure boundaries for the safe operation of nuclear plants. The eddy...

...-phase cross flow. pressure vessels vibrations power plants flow instability mixtures Many power and process plant components operate in two-phase flow, under high flow rates and adverse environmental conditions. For example, it has been estimated that more than half of nuclear...

...Suzanne Michaud; Samir Ziada, Mem. ASME; Henri Pastorel The steam dump system in Gentilly Nuclear Power Plant consists of four parallel steam pipes, each of which comprises a steam control valve. Two pipes of this system experienced high-cycle fatigue damage. In-situ vibration and dynamic strain...

... power plants pressure vessels failure (mechanical) failure analysis The semi-infinite plate model was used to analyze the initiation and growth of thermal fatigue cracks. This analysis was based on the theory of heat transfer. According to the mechanical fatigue endurance limit, the allowable...

...; revised manuscript received November 16, 2000. Editor: S. Y. Zamrik. 23 July 2000 12 October 2000 16 November 2000 pressure vessels bending stress effects heat pipes power plants nuclear power Piping systems in a nuclear power plant are designed to meet...

... effects corrosion resistance corrosion heating power plants oil technology The Estonian oil shale is a local low-grade fuel having calorific value, Q t r ∼ 8.4   MJ / kg , ash content, A d ∼ 51.3   percent , and moisture content, W t r...

.... Editor: S. Y. Zamrik. 01 January 2000 23 October 2000 power plants fission reactor safety pressure vessels fatigue testing fracture mechanics fission reactor operation Shallow-flaw fracture toughness data for reactor pressure vessel (RPV) materials in the lower...

... . Manuscript received by the PVP Division, February 1, 2000; revised manuscript received April 12, 2000. Technical Editor: S. Y. Zamrik. 01 February 2000 12 April 2000 power plants vibrations flow failure (mechanical) acoustic resonance turbulence Traditionally, power...

...R. Viswanathan Aging of power plants and competitive pressures to operate and maintain (O&M) these plants at reduced costs have heightened industry interest in life assessment and management technologies. Piping and tubing systems carrying high-pressure steam at temperatures exceeding 1000°F...