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Showing 1 to 9 of 9 for “"FWH"”.
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Thermal modelling of feedwater heaters
Manufacturers of feedwater heaters (FWHs) are obliged to disclose a specification sheet to the client that describes their FWH design. However, the client is unable to verify the performance of this FWH design without comparing it to the results that are predicted by a thermal model. An additional …
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Development of a performance-based high pressure feed water heater model for Flownex SE
Feed-water heaters (FWHs) are an integral part of the power plant with respect to the overall heat recovery, and thus its efficiency. While the main purpose of the FWHs is to heat up the feed-water before being sent to the boiler, there are more added advantages owing to the installation of this …
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High Fidelity Open Rotor Noise Prediction
… methods based on the Ffowcs Williams-Hawkings (\fwh) equation. This equation is considered to be the most realistic description of aeroacoustic noise generation, as it is a direct rearrangement of the Navier-Stokes equations. The \fwh\ equation is difficult to solve for realistic test cases such …
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Computational aeroacoustic modelling using hybrid RANS/LES methods with modified acoustic analogies
… of the two modified versions of Curle's and FWH analogies with the results of other CFD practitioners as well as experimental data.
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2D Aeroacoustic Analysis of Flow in the Flame Trench
… a harmonic component. A Ffowcs-Williams Hawking (FWH) surface is then constructed within the computational domain to use the computed flow fluctuations to obtain the acoustic field. The acoustic data was then compared to the experimental data.</p> <p>When using the ANSYS code for this flow …
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Prediction & Active Control of Multi-Rotor Noise
… is determined via the Ffowcs-Williams-Hawking (FWH) formula. Two in-line rotors are considered and we showed that the FWH-determined actuation signal can produce perfect cancellation at a point target. However, the practical need is to achieve noise reduction over an azimuthal zone, not just a …
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A modelling methodology to quantify the impact of plant anomalies on ID fan capacity in coal fired power plants
… fan's capacity by 2.1 %. Also, having both HP FWH out of service decreased the fan's capacity by 16.2 %.
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Stability, LES, and Resolvent Analysis of Thermally Non-uniform Supersonic Jet Noise
For decades noise-induced hearing loss has been a concern of the Department of Defense (DoD). My research investigates noise generation and dispersion in supersonic jets and focuses on the fluid-dynamic regime typical of high-performance turbojet and turbofan engines. The goal of my research is to …
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HIV-1 gp120 and Methamphetamine-mediated Induction of Proinflammatory Cytokines/chemokines and Oxidative Stress in Astrocytes: Implications in Neuroinflammation
… (DAS), NOX, diphenyleneiodonium (DPI), and FWH reaction, deferoxamine (DFO), which significantly reduced ROS production. These findings were further confirmed using specific siRNAs against NOX2 and NOX4 (NADPH oxidase family). Furthermore, gp120 and MA both induced apoptosis (as evidenced by …