TY - THES A1 - Mishra, Kirti Bhushan T1 - Experimental investigation and CFD simulation of organic peroxide pool fires (TBPB and TBPEH) N2 - Time averaged mass burning rate (m˙′′f ), flame length (H), temperature (T ), irradi- ance (E) and surface emissive power (SEP ) of TBPB (tert -butyl peroxybenzoate) and TBPEH (tert-butyl peroxy-2-ethylhexanoate) pool fires are measured for six pool di- ameters (d = 0.059 m, 0.107 m, 0.18 m, 0.5 m, 1 m and 3.4 m) at BAM in house and outside test facility. The measured heats of combustion (–Δhc) of TBPB and TBPEH are 30113 kJ/kg and 34455 kJ/kg and the specific heat capacities at constant pressure (cp) are 1.8 kJ/(kg K) and 2.1 kJ/(kg K) respectively. The measured m˙′′f of TBPB and TBPEH pool fires are in the range of 0.37 kg/(m2 s)≤ m˙ ′′ f ≤ 0.83 kg/(m2 s) and show little dependence on the pool diameter d, and are four to sixty times higher (for d = 1 m) than that of hydrocarbon pool fires. It is shown that the mass burning rates of the investigated organic peroxides can be represented as an exponential function of the self-accelerating decomposition temperature (SADT). Low SADT implies that the organic peroxide pool fires burn at a much higher m˙′′f than hydrocarbon pool fires. Fuel Froude numbers (Frf) of TBPB and TBPEH are 5 to 100 times (depending on d) higher than for hydrocarbon pool fires. Due to higher Frf the H of TBPB and TBPEH (measured with a S-VHS Videocamera) are found to be two times larger (d = 1 m) than corresponding pool fires of hydrocarbons. Heskestads flame length correlation predicts the Hd (d = 3.4 m) of TBPB and TBPEH pool fires much better than Thomas and Fay correlations. The measured time averaged flame temperatures T (d = 3.4 m) for TBPB and TBPEH pool fires are in the range of 1400 K ≤ T ≤ 1500 K and are 200 K to 300 K higher than for JP-4, kerosene and gasoline. The irradiances of the TBPB and TBPEH pool fires measured by radiometers are E (Δy/d = 0.3) = 45 kW/m2 and E = 98 kW/m2 which are two to ten times higher in comparison to the corresponding n-pentane, super gasoline and diesel pool fires. So the thermal safety distances for organic peroxide pool fires are larger by a factor four in comparison to the hydrocarbon pool fires. An infrared thermography system is used for the determination of SEP of TBPB and TBPEH pool fires. The values of surface emissive power for TBPB and TBPEH are SEP (d = 3.4 m) = 196 kW/m2 and SEP = 258 kW/m2 and thus the SEP are by a factor of approximately two higher than for hydrocarbon pool fires. A self-sustained pulsating Hd (’W’-Effect) is found in TBPB pool flames and is further analysed to explain the reason of occurance on the basis of chemical structure of the fuel and discontinuous heat flux back from flame to the liquid pool. CFD simulations of TBPB and TBPEH pool fires at d = 0.18 m, 0.5 m, 1 m, 3.4 m and 8 m are carried out using the Unsteady Reynolds Averaged Navier Stokes (URANS) equa- tions. The three-dimensional geometries have been discritized with unstructured hybrid grids, with the number of cells in the range of 1 million. Depending on the grid resolu- tion and the pool diameter time steps of 0.0001 s ≤ Δt ≤ 0.01 s for the CFD simulations are used. For solving the discritized equations a finite volume based implicit solver AN- SYS CFX has been used. For modelling the combustion, stoichiometric combustion for both peroxides are assumed. The temperature dependence of the reaction rate has been determined by the Arrhenius approach. For modelling the combustion eddy dissipation concept (EDC) model has been used. For turbulence buoyancy modified k- � and SAS (Scale Adaptive Simulation) turbulence models are used. For the thermal radiation and soot mass fraction discrete transfer radiation model and Magnusson soot model have been used. A new method is suggested for the prediction of mass burning rate (m˙′′f ) by CFD simula- tion. Both peroxide pool fires show approximately constant mass burning rate indepen- dent of d whereas m˙′′f of TBPEH are under predicted at the beginning but show relatively good agreement with measurements for large pool diameters (d = 1 m). In case of TBPB the CFD simulation over predicts the mass burning rate m˙′′f of small TBPB pool fires and shows a continuous decrease with d. CFD predicts the flame length H close to the measured data provided that the constants in Thomas equation are modified. The CFD predicted time averaged surface emission flame temperatures of TBPB and TBPEH pool fires (d = 3.4 m, 1437 K and 1542 K) are in good agreement with the measured time averaged flame temperatures. The CFD predicted SEP for TBPB and TBPEH pool fires (d = 3.4 m, 217 kW/m2 and 288 kW/m2) are also in agreement with the measured values. From the CFD predicted irradiance ECFD it is possible to determine the thermal safety distances from large pool fires of hydrocarbons and organic peroxides. T3 - BAM Dissertationsreihe - 63 KW - Pool fires KW - organic peroxides flame characteristics KW - safety distance KW - CFD simulation PY - 2010 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-950 SN - 978-3-9813550-6-2 SN - 1613-4249 VL - 63 SP - 1 EP - 150 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-95 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schälike, Stefan A1 - Mishra, Kirti Bhushan A1 - Malow, Marcus A1 - Berger, Anka A1 - Wehrstedt, Klaus-Dieter A1 - Schönbucher, A. ED - Pierucci, S. ED - Klemes, J.J. ED - De Rademaeker, E. ED - Fabiano, B. ED - Buratti, S.S. T1 - Mass burning rate of a large TBPB pool fire - experimental study and modeling N2 - Data and prediction for the mass burning rate of a tert-butyl-peroxy-benzoat (TBPB) pool fire (pool diameter = 3 m) is presented. The mass burning rates of TBPB fires are up to six times higher and less dependent on pool diameter compared to hydrocarbon pool fires caused by an additional heat release rate due to exothermic decomposition reaction in the liquid phase. This heat release rate is calculated using a 1st order reaction kinetic obtained from micro calorimetric measurements. A new model is derived considering the heat release rate due to the decomposition reaction which is shown to be 100 % of the heat release rate radiated to the pool surface. With the presented model, including also physical quantities, especially the limiting fuel concentration for upward flame propagation, it is possible to predict the mass burning rates of large TBPB pool fires. The predicted values are in very good agreement with the experiments. T2 - 14th International symposium on loss prevention and safety promotion in the process industries CY - Florence, Italy DA - 12.05.2013 KW - Mass burning rate KW - TBPB (tert-butyl-peroxy benzoat) KW - Pool fire KW - Experimental study KW - Modeling PY - 2013 SN - 978-88-95608-22-8 DO - https://doi.org/10.3303/CET1331143 SN - 1974-9791 N1 - Serientitel: Chemical engineering transactions – Series title: Chemical engineering transactions IS - 31 SP - 853 EP - 858 PB - AIDIC, Associazione Italiana di Ingegneria Chimica CY - Milano AN - OPUS4-28501 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - Diffusive burning characteristics of peroxy-fuels N2 - The diffusive burning characteristics of four peroxy-fuels (usually known as liquid organic peroxides) and one hydrocarbon fuel are experimentally investigated targeting alternative fuels (or as additives to conventional fuels) for the future. Measurements are performed in form of pool fires with pool diameters in the range between 1 cm and 1 m. Mass, momentum and energy transfer studies are carried out by measuring the mass burning rate, flame length, flame temperature and radiation heat transfer across the liquid fuel and gaseous flame. It has been shown that comparatively much less mass of peroxy-fuels and pressure drop (required to maintained the flow) of fuel are required to produce a given heat flux. The momentum delivered by the peroxy-fuel vapours are order of magnitude higher than for hydrocarbons making the visibility of flame to be 4–5 times larger. A heat balance analysis shows that the total heat release rate of a peroxy-fuel fire is contributed equally by convection and radiation. Finally, the three E's (Efficiency, Economy and Emission) are discussed in the context of present experimental results followed by some recommendations concerning safe handling of the proposed fuels. KW - Burning characteristics KW - Peroxy-fuels KW - Hydrocarbons KW - Pool fires KW - Three E’s PY - 2013 DO - https://doi.org/10.1016/j.fuel.2013.05.031 SN - 0016-2361 VL - 113 SP - 158 EP - 164 PB - Elsevier CY - Amsterdam AN - OPUS4-28711 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter A1 - Krebs, Holger T1 - Lessons learned from recent fuel storage fires N2 - Industrial fire and explosion hazards due to accidents in fuel storage units have gained a considerable attention in the recent times. Both the regulatory bodies and scientific communities are heavily concerned about the proper safety measures to avoid such calamities in future. This paper aims to bring some essentials related to the hazards arose from the recent fuel storage fire accident occurred in Buncefield, UK (2005), Puerto Rico, USA (2009) and Sitapura, India (2009). The potential similarities behind occurrence of these accidents are studied. The applicability of various methods (models) and also computer simulations to estimate the safety distances according to the international standards for both explosion and fire hazard are verified. The overpressures caused by the Vapor Cloud Explosion (VCE) and radiation flux emitted by the fire are considered for respective explosion and fire hazard estimations. The prime focus is placed on the regulations laid down by the National Fire Protection Agency of the United States and the European Norms. T2 - ICCEU 2012 - 11th International conference on combustion and energy utilization CY - Coimbra, Portugal DA - 2012-05-09 KW - Industrial fires KW - Storage units KW - Safety measures KW - Explosion KW - Overpressure KW - CFD simulation PY - 2012 SP - 1 EP - 10(?) AN - OPUS4-26186 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - CFD analysis of peroxy-fuel combustion T2 - 34th International Symposium on Combustion CY - Warsaw, Poland DA - 2012-07-29 PY - 2012 AN - OPUS4-26368 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schälike, Stefan A1 - Chun, Hyunjoo A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter A1 - Schönbucher, A. T1 - Mass burning rates of di-tert-butyl peroxide pool fires - experimental study and modeling N2 - Data and predictions for the mass burning rates of di-tert-butyl peroxide (DTBP) pool fires (0.003 m < pool diameter < 3 m) are presented. The mass burning rates of DTBP fires are up to five times higher and are less dependent on pool diameter compared to hydrocarbon pool fires caused by an additional heat release rate due to exothermic decomposition reaction in the liquid phase. This heat release rate is calculated using a first-order reaction kinetic obtained from microcalorimetric measurements. A new model is derived considering the heat release rate due to the decomposition reaction, which is shown to be 40% of the heat release rate radiated to the pool surface. With the presented model, which also includes physical quantities, especially the limiting fuel concentration for upward flame propagation, it is possible to predict the mass burning rates of large DTBP pool fires. The predicted values are in very good agreement with the experiments. KW - Di-tert-butyl peroxide (DTBP) KW - Exothermic decomposition reaction KW - Mass burning rate KW - Pool fire PY - 2013 DO - https://doi.org/10.1080/00102202.2012.726664 SN - 0010-2202 SN - 1563-521X VL - 185 IS - 3 SP - 408 EP - 419 PB - Gordon and Breach CY - New York, NY AN - OPUS4-27902 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - Peroxy-fuels: potential applications in combustion engines T2 - 11th International Congress on Engine Combustion Processes - Current Problems and Modern Techniques CY - Ludwigsburg, Germany DA - 2013-03-14 PY - 2013 AN - OPUS4-27874 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - CFD modeling of spill characteristics of flammable liquids T2 - 22nd Journées d´Etudes of the Belgian section of the combustion institute CY - Heverlee, Belgium DA - 2012-09-11 KW - Flammable liquids KW - Spill characteristics KW - CFD modeling KW - Overflow Reynolds number KW - Jet A KW - DTBP KW - Vapor cloud PY - 2012 SP - 18 EP - 19 AN - OPUS4-27924 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schälike, Stefan A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter A1 - Schönbucher, A. T1 - Experimentelle Untersuchung der Massenabbrandraten multipler n-Heptan und Di-tert-butylperoxid Poolfeuer N2 - Es werden Experimente zur Bestimmung der Massenabbrandraten von multiplen Poolfeuern präsentiert. Als Modellsubstanzen dienen n-Heptan und Di-tert-butylperoxid (DTBP). Es werden Versuche im Labormaßstab mit Durchmessern von d = 6 cm und relativen Abständen von 0.08 ≤ D/d ≤ 4 beschrieben und durch Feldversuche mit Pooldurchmessern d = 1.5 m und relativen Abständen zwischen den Pool von 0.17 ≤ D/d ≤ 1 ergänzt. Es kann gezeigt werden, dass die Massenabbrandraten multipler Feuer im Vergleich zu Einzelfeuern mit gleicher Brennstoffoberfläche bis zu einem Faktor 5.9 (n-Heptan) und 1.6 (DTBP) erhöht sind. Die Erhöhung ist abhängig vom relativen Abstand zwischen den Pools D, der Anzahl der Pools N und vom jeweiligen Brennstoff und zeigt ein lokales Maximum, welches mit dem Merging-Bereich der Flammenverschmelzung zusammenfällt. Die Massenabbrandrate als Funktion des relativen Abstandes zwischen den Pools kann durch eine Vergrößerung der Flammenbodenoberfläche infolge Flammenverschmelzung erklärt werden. T2 - 3. Magdeburger Brand- und Explosionsschutztag / vfdb-Workshop CY - Magdeburg, Germany DA - 22.03.2013 KW - Multiple Poolfeuer KW - Massenabbrandraten KW - n-Heptan KW - DTBP PY - 2013 SN - 978-3-00-041601-9 SP - 1 EP - 11 AN - OPUS4-27982 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter ED - Leipertz, A. T1 - Peroxy-fuels: potential applications in combustion engines N2 - Present work deals with the potential usage of peroxy-fuels (usually known as organic peroxides) in engine combustion processes. Although as additives (in small quantities < 5% to conventional fuels e.g. diesel, gasoline) peroxy-fuels are well known for many years their commercial applications as a main or primary fuel are not investigated in detail as such except a few. Since they are thermally unstable and energetic their safety demands great care during processing which restricts their commercial exploitation. However, once the issues with safety are resolved they can be much more advantageously employed than conventional fuels. Some of these advantages are: significant amount of fuel saving, reduction in amount of inducted air or even in the complete absence of air i.e. anaerobically, smaller volume of combustion (chamber), oxygenated fuel quality and low emissions. In this study we introduce an idea to develop the components of an engine operating solely on peroxy-fuels. The engine concept is based on single and multiple injectors in a cylinder with special material coating to ensure a temperature controlled processing. T2 - 11th International congress on engine combustion processes - current problems and modern techniques CY - Ludwigsburg, Germany DA - 14.03.2013 KW - Industrial fires KW - Storage units KW - Safety measures KW - Explosion KW - Overpressure KW - CFD simulation PY - 2013 SN - 3-931901-87-4 N1 - Serientitel: Berichte zur Energie- und Verfahrenstechnik (BEV) – Series title: Berichte zur Energie- und Verfahrenstechnik (BEV) IS - 13.1 SP - 157 EP - 164 AN - OPUS4-27951 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schälike, Stefan A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter A1 - Schönbucher, A. T1 - Limiting distances for flame merging of multiple n-heptane and di-tert-butyl peroxide pool fires N2 - Experiments to determine the limiting distances for flame merging of multiple pool fires are presented. As model substances n-heptane and di-tert-butyl peroxide are used. Laboratory scale tests with a Diameter d = 6 cm and relative distances between the pools of 0.08 ≤ D/d ≤ 4 are described and complemented with field experiments with a diameter d = 1.5 m and relative distances between the pools of 0.17 ≤ D/d ≤ 1. Three regions for flame merging are observed and limiting distances are determined. A merging Region with the limiting distance Dmerg/d within which all flames merge together over the complete burning time. A transition region with the limiting distance Dtran/d within which some flames merge together while other flames are separated from each other. A separated region within which all flames are completely separated from each other. A correlation against the number of burning pools is presented to predict the limiting distances Dmerg/d und Dtran/d. T2 - ICheaP-11 - 11th International conference on chemical & process engineering CY - Milan, Italy DA - 02.06.2013 KW - Multiple fires KW - Flame merging KW - Mass burning rate KW - Limiting distances KW - Pool fire KW - Experimental study KW - Di-tert-butyl peroxide PY - 2013 SN - 978-88-95608-23-5 DO - https://doi.org/10.3303/CET1332021 SN - 1974-9791 N1 - Serientitel: Chemical engineering transactions – Series title: Chemical engineering transactions IS - 32 SP - 121 EP - 126 PB - AIDIC, Associazione Italiana di Ingegneria Chimica CY - Milan AN - OPUS4-28646 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter A1 - Schönbucher, A. T1 - Interpretations of temperature measurements in organic peroxide pool fires N2 - Most of the measurements of temperatures in large pool fires are indirect and present a number of complexities due to the interactions of convection, radiation and soot blockage. In the present work these influences for two organic peroxide [tert-butyl peroxybenzoate (TBPB) and tert-butyl peroxy-2-ethylhexanoate (TBPEH)] pool fires are analysed. Thermocouple measured temperature in the clear flame zone i.e. combustion zone are found to be 250-400 K lower than from the thermographic measurements. The convective and radiative heat flux contributions from the fire on temperature measurements are discussed. CFD (Computational Fluid Dynamics) simulations have been performed for large pool fires and the predicted time averaged flame temperatures were found to be in qualitative agreement with measurements due to the stoichiometric combustion model used in the present simulations. T2 - 5th European combustion meeting 2011 CY - Cardiff, UK DA - 28.06.2011 KW - Pool fire KW - Organic peroxides KW - TBPB KW - TBPEH KW - CFD KW - Temperature measurement PY - 2011 UR - http://www.uni-due.de/tchem/as/skripte/paper_mishra_et_al_cardiff_2011.pdf SP - 1 EP - 5 AN - OPUS4-24686 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - An efficient and clean fuel for high temperature process industries N2 - The use of energetic materials as a main fuel in high temperature process industries are not known to the scientific community as such. This paper highlights some of the features and advantages of using organic peroxides especially di-tert-butyl peroxide (DTBP) in high temperature process industries. The feasibility of using DTBP as a main or supporting fuel in process industries have also been justified with the help of Computational Fluid Dynamics (CFD) simulations. For peroxides requirement of less fuel and air for the same amount of heat flux has been shown. The resulted emission from the combustion of DTBP is also discussed. T2 - 11th Conference on Energy for a Clean Environment CY - Lisbon, Portugal DA - 2011-07-05 KW - Energetic materials KW - Process industries KW - Organic peroxide KW - Di-tert-butylperoxide (DTBP) KW - CFD simulation KW - Emission PY - 2011 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-247071 SP - 1 EP - 10 AN - OPUS4-24707 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - Combustion of peroxy-fuels N2 - The diffusion flames of organic peroxides exhibit quite different characteristics than hydrocarbons. What makes them interesting to study is their fast burning behaviour. As a result the flame temperature enhances and so does the thermal radiation. Due to all these they demand safe handling during processing. However, they can be utilised at several places in different industries where a fuel with fast burning, high temperature and intense radiation are desired. Some of the possibilities to use them as a main or supporting fuel in a wide range of industrial utilities are the major content of this paper. T2 - ERCOFTAC conference - Highly resolved experimental and numerical diagnostics for turbulent combustion CY - Rouen, France DA - 25.05.2011 KW - Energetic materials KW - Process industries KW - Organic peroxide KW - Di-tert-butyl peroxide (DTBP) KW - CFD simulation KW - Emission PY - 2011 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-247083 SP - 1 EP - 5 AN - OPUS4-24708 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - Burner for peroxy fuels (Peroxy-BAM® Burner) T2 - 25. Deutscher Flammentag - Verbrennung und Feuerung CY - Karlsruhe, Germany DA - 2011-09-14 PY - 2011 AN - OPUS4-24329 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - Burner for peroxy-fuels (PEROXY-BAM Burner) N2 - A new burner concept (PEROXY-BAM®) for the combustion of liquid organic peroxides (Peroxy-fuels) is presented. As peroxy-fuels are thermally unstable the design of burners for them should be accordingly modified ensuring a safe operation. It is found that 10 to 100 time less amounts of peroxy fuels are required for the same heat flux or output in comparison to hydrocarbons. Correspondingly, the fuel pump power and the volume of combustion chamber (furnace) are also reduced. As a result of less amount of fuel the emissions will also be stepped down and oxygen in the molecule helps to establish conditons like in an oxy-fuel combustion process. The advantages of using peroxy-fuels over hydrocarbons inside a model combustion chamber are also investigated with the help of CFD (Computational Fluid Dynamics) simulations. T2 - 25. Deutscher Flammentag - Verbrennung und Feuerung CY - Karlsruhe, Germany DA - 14.09.2011 KW - Organic peroxide KW - Peroxy-fuel KW - Burner concept KW - Combustion KW - Combustion chamber PY - 2011 SN - 978-3-18-092119-8 SN - 0083-5560 N1 - Serientitel: VDI-Berichte – Series title: VDI-Berichte VL - 2119 SP - 307 EP - 312 PB - VDI-Verl. AN - OPUS4-24388 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - CFD simulation to predict the performance of a peroxy-fuel burner N2 - new burner concept for peroxy-fuels is proposed. The performance of the proposed peroxy-fuel burner is predicted with the help of Computational Fluid Dynamics (CFD) simulation. It is found that peroxy-fuel burner not only requires considerable less amount of fuel for the same output/power but also at the same time the overall size of the processing unit can be reduced. As peroxy-fuels contain oxygen atoms within the molecule itself a similar to oxy-fuel combustion environment is created without even supplying pure oxygen. CFD simulations also support the above facts and demonstrate the existence of less favorable conditions to form NOx. T2 - 38th National conference on fluid mechanics and fluid power CY - Bhopal, India DA - 15.12.2011 KW - Burner KW - Peroxy-fuels KW - Performance KW - CFD simulation PY - 2011 IS - Paper HT-07 SP - 1 EP - 6 AN - OPUS4-25380 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - Decomposition effects on the mass burning rate of organic peroxide pool fires N2 - The mass burning rate of pool fires of organic peroxides do not vary appreciably with the pool size as have been observed for the hydrocarbons. Instead the decomposition temperature largely controls the same. The dependence of mass burning rate on the decomposition temperatures namely self-accelerating decomposition temperature (SADT) and extrapolated onset temperature measured by differential scanning calorimetry (DSC) for organic peroxide pool fires are identified and correlations are developed. KW - Decomposition KW - SADT KW - Pool fire KW - Mass burning rate KW - Organic peroxides KW - DSC PY - 2012 DO - https://doi.org/10.1016/j.jlp.2011.06.014 SN - 0950-4230 SN - 1873-3352 VL - 25 IS - 1 SP - 224 EP - 226 PB - Butterworth CY - Guildford, Surrey AN - OPUS4-25020 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - CFD simulation of hybrid fuel combustion T2 - Thirty Ninth National Conference on Fluid Mechanics and Fluid Power (NCFMFP) CY - Surat, India DA - 2012-12-13 PY - 2012 AN - OPUS4-27529 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - CFD simulation of hybrid fuel combustion T2 - NCFMFP 2012 - 39th National conference on fluid mechanics and fluid power CY - Surat, Gujarat, India DA - 2012-12-13 KW - CFD KW - Hybrid fuel KW - Hydrocarbon KW - Peroxy-fuel KW - Combustion PY - 2012 SN - 978-81-925-494-0-8 IS - FMFP2012 - 209 SP - 1 EP - 7(?) AN - OPUS4-27587 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -