Distributed combustion, often associated with the low-oxygen condition, offers ultra-low NOX emission. However, it was recently achieved without combustion air dilution or internal flue gas recirculation, using a distinct approach called Mixture Temperature-Controlled combustion. Here, fuel-air stream is cooled at inlet to delay ignition and hence foster homogeneous mixture formation. The aim o...

A gas turbine inlet filtration system is important for successful operation. The filtration system minimizes the occurrence of foreign object damage, erosion, fouling, and corrosion. The selection of the inlet filtration system is a challenging process which involved choosing multiple filtration stages based on the desired performance of the gas turbine and the local operating environment. This...

This analysis investigates the distortion of flow measurement and the increase of cavitation along orifice flowmeter. The analysis using the numerical method (CFD) validated the distortion of flow measurement through the inlet velocity profile considering the convergence and grid dependency. Realizable k-e model was selected and y+ was about 50 in this numerical analysis. This analysis also est...

Like many developed countries, energy efficiency and environment impact are the most important process in the development of power generation policy in India. A high ambient temperature reduces the air density and makes inlet air cooling (IAC) and steam injection gas turbine (STIG) attractive power augmentation method for existing regenerative gas turbine. With a high back work ratio and a high...

The article deals with the energy and exergy performance analyses of supercritical carbon dioxide recompression Brayton cycle (S-CO2 RBC). This is known to offer maximum efficiency when operating near critical point CO2, which possible in low ambient temperature environment but not warm or hot conditions. CO2-C7H8 binary mixture used improve thermodynamic for warmer percentage C7H8 selected acc...

This paper summarizes the numerical analysis of a liquid-liquid ejector pump with focus on the accuracy of the employed cavitation model and in view of its potential application as a dualor multi-liquid mixing and injection system. While the use of gas-phase or gas/liquid-phase ejection systems has found wide application in gas/hybrid burners and scrubbers for air pollution control; the use of ...

this paper presents a three-dimensional numerical investigation carried out in turbulent forced convection in a tube with helical ribs. enhancement of heat transfer using helically corrugated tubes has beenstudied experimentally by many researchers but there exist a few published numerical analyses results. the paper also introduces the results of heat transfer and friction factor data for inco...

Fast fillings of hydrogen vehicles require proper control the temperature to ensure integrity storage tanks. This study presents an analysis heat transfer during filling a tank. A conjugate based on energy balance is introduced. The numerical model validated against fast experiments in Type IV tank by comparing gas evolution. impact parameters, such as initial temperature, inlet nozzle diameter...

Lignocellulosic biomass is an established source of energy with various applications. Yet, its diversity renders the proper combustion thermochemical degradation vapors challenging. In this work, syngas obtained from conversion was numerically investigated to limit pollutant emission. The Computational Fluid Dynamics (CFD) simulation performed using open-source OpenFOAM. reactor considered in a...

Membrane inlet mass spectrometry (MIMS) is an established technique for the analysis of volatile organic compounds in aqueous solutions and in air. A thin membrane is the only interface between a liquid or gaseous sample at atmospheric pressure and the vacuum of a mass spectrometer. Since its introduction about 35 years ago MIMS has been applied mainly in biochemistry and environmental analysis...