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TitleDateSubjectDescription
51 A comprehensive parametric investigation of efficient soot modeling using high fidelity method of momentsPSD; PAH; nucleation; Soot; Radiation; Method of momentSoot is one of the most regulated pollutants in all the combustion applications like automotive engines, aviation engines, and industrial furnaces. Modeling soot formation is quite challenging due to the complex processes involved in the formation of the soot particulates. Empirical formulation base...
52 3D CFD model development and validation for once-through steam generator (OTSG): coupling combustion, heat transferThe current research studies the coupled combustion inside the furnace and the steam generation inside the radiant and convection tubes through a typical Once-Through Steam Generator (OTSG). A 3D CFD model coupling combustion and two-phase flow was developed to model the entire system of OTSG. Once ...
53 Simplified analysis and practical mitigation techniques for induestrial boiler thermoacoustic vibration2019Industrial boiler systems are prone to mechanical vibration which can lead to premature component failures, emission non-compliance, and greatly increased ambient noise generation. Driving mechanisms, thermoacoustic phenomena, and system geometrical interactions are complex. General methods for accu...
54 Flare regulatory update2019The United States Environmental Protection Agency (USEPA) revised the regulations for the refinery through the Refinery Sector Rule (RSR) revisions to NESHAP CC and UUU (aka MACT CC and MACT UUU). The USEPA is expected to propose revisions to the Ethylene MACT and the Hazardous Organic NESHAP (HON) ...
55 A smart combustion approach to quantify and evaluate leakage air effects in fired heaters2019The information contained in these materials is for informational purposes only and is provided "AS IS", without warranties of any kind. Your use of the information contained herein is at your sole risk. We expressly disclaim any express or implied representations, warranties or guaranties, includin...
56 Remote measurement of Flare gas flow rate using a video imaging spectral radiometer2019Flares are commonly used at industrial facilities (e.g., oil and gas extraction and production sites, gas processing plants, oil refineries, and petrochemical manufacturing plants) to safely dispose of process gases (i.e. waste gases). Waste gases may be produced due to process upset or because they...
57 Developments in low NOx incineration technologiesThe overall combustion industry continues to design and develop new low NOx and ultra-low NOx technologies across many applications. In general incineration design and requirements have lagged other technologies like process heaters and boiler burners. This is due to many factors but there is new fo...
58 An air-assisted flare for biomass gasifiers2019Computational fluid dynamics (CFD) was used to simulate the combustion practice of the gases that produce from gasification process. In this simulation a new air-assisted flare design which capable to handle low flowrates of these gases with high performance was used. The simulated cases were perfor...
59 A generational ShiftThe original first generation elevated low-pressure flare technology is a simple pipe flare. While still broadly used today, these 1G flares tend to smoke easily even with the lightest of hydrocarbons, methane.
60 Predicting Ash Deposition During Oxy-Coal CombustionAn ability to predict and control ash deposition are crucial to effective heat extraction from pulverized fuel (pf) units. Computation Fluid Dynamic (CFD) simulations in conjunction with fuel characterization data have been used in recent years to develop sub-models to predict slagging propensities ...
61 PERF Project 2014-10 Results and Analysis of the VISR Method for Remote Flare Monitoring2019The Petroleum Environmental Research Forum (PERF) is a non-profit organization created to provide a stimulus to and a forum for the collection, exchange, and analysis of research information relating to the development of technology for health, environment and safety; waste reduction; and system sec...
62 Neutron imaging of heterogeneous solid fuels under heating2019Solid-fuel pyrolysis, gasification, and combustion continue to play an important role in the industrial and utility sectors. Behavior of heterogeneous fuels such as biomass (e.g., wood and grasses), municipal solid waste (MSW), and coal is less understood on the micro than the macro scales, particul...
63 Numerical investigations of tailored heating of a round bar for partial hot forming using Direct Flame Impingement (DFI)2019Tailored Heating; Direct Flame Impingement (DFI); Massive FormingHot massive forming is performed using uniform heating of the materials to avoid wrinkle formation. A new approach, which is investigated within a research project, is presented in this paper, using a tailored heating with different temperature zones to conduct hot massive forming and semi-hot formi...
64 Computational study of the anode baking industrial furnaceTurbulent flow; Eddy dissipation model; Combustion, NOx; Zeldovich mechanismIn the aluminium industry, the Hall-Héroult process is used for smelting of aluminium using carbon electrodes such as anodes. The baking process of anodes is required for their maximum efficiency during this electrolysis process. The anode baking process contributes up to 15% costs in the aluminium...
65 Experimental investigation for the development of burners for low scale reheating of semi-finished metal products2019recuperative burner; fuel rich combustion; direct fired furnace; scale reduction; radiant tubeIndustrial furnaces for the reheating of semi-finished metal products are often direct fired with natural gas and air. Oxidation of the metals exposed to the furnace atmosphere causes significant material losses and additional work during furnace operation and in further processing. A reheating conc...
66 EC sensor: flame safety and fuel savings integrated into one systemSafety is the most important consideration in the operation of any combustion system. To that effect, operators of combustion equipment monitor the presence of a flame in various ways. The most common flame monitoring sensors include flame rods, infrared scanners and ultra-violet scanners. Although ...
67 Recommendations for pilot design and equipment startup in incinerator applicationsThermal oxidizer startups can be a complex and critical operating point for any facility. This activity requires attention to detail on many factors for consistent light off and startup of their equipment. As a result, proper design and operation of a pilot system is key to the long-term success of ...
68 Duplex: lessons learned and roadblocks overcome to its successDuplexTM is an innovative combustion technology that has been successfully implemented in a variety of industrial applications including refinery process heaters, once-through steam generators, enclosed flares and boilers. The technology provides unparalleled environmental and process performance ch...
69 Numberical and experimental investigations on an innovative, regeneratively heated radiant tube with compact dimensions2019heat treatment; radiant tube; regenerative heating; staged combustionThe presented, public funded research cooperation project of the Department for Industrial Furnaces and Heat Engineering at the RWTH Aachen University and the WS Wärmeprozesstechnik GmbH main aim is the development of an innovative, regeneratively heated radiant tube with compact dimensions. The ma...
70 Multistage flameless oxidation2019Flameless Oxidation (FLOX®) is a well established low thermal NOx combustion method since the early 1990s. Flameless Oxidation can be applied for processes above self ignition temperature. Typically, switching between flame- and FLOX-mode occurs at a temperature of 850°C. This restriction can be o...
71 Data informed multipoint ground flare evaluation using measurement and theoryThis paper will explore the comparison of experimental (PFTIR) and simulation data obtained from assisted multipoint ground flares operating at high turndown. The flare assist is intended to encourage air entrainment for best combustion efficiency as well as reduce visible smoke. Operational envelop...
72 Lessons learned from transient analysis of combustion equipment in the process industriesDuring gas flare operation, hydrocarbon gas is fed through a flare stack and ignited by a pilot. During the ignition process, flares generally produce significant amounts of smoke (see Figure 1) since enough mixing energy is not available to entrain surrounding air to completely burn the flare gas. ...
73 Hardening of arehes for commercial simulation of industrial flaresWith funding from the Department of Energy (DOE), to further the use of government funded high-performance computing (HPC) software for engineering analysis of industrial problems, Reaction Engineering International (REI) is working with the University of Utah to leverage the Uintah Computational Fr...
74 Closed loop flare control using a video imaging spectral radiometerVideo Imaging Spectral Radiometry (VISR) has emerged as the only practical method to directly and continuously monitor flare performance. The VISR method provides real time measurements of flare combustion efficiency (%) and a smoke index (0-10) at a 1-sec temporal resolution. In addition to these t...
75 "Regulatory and analyzer update for USEPA's new formaldehyde emissions limit for combustion turbines"2019Spectrum's technical team has demonstrated a <27 ppbvd Formaldehyde detection limit (DL) on its extractive FTIR equipped using a 5-meter cell pathlength. This formaldehyde detection is well below USEPA's 91 ppbvd emission threshold for Combustion Turbines now subject to regulation under NESHAP Subpa...
51 - 75 of 1,699