...Michael Bonds, Jr.; Ganesh Subbarama Iyer; Srinath V. Ekkad Array jet impingement in conjunction with other cooling methods such as effusion cooling is used in gas turbine combustion zones to provide optimized cooling in the form of double wall cooling around a combustion chamber. Utilizing...

... represent an exponential dependence with small temperature deviations from the initial value, because T + T 2 / 2 ≈ exp ( T ) − 1 . The heat transfer equation with the exponential source term due to chemical reaction appears widely in combustion theory, in particular in the theory...

... of premixed oxy-methane combustion flames. This is important for combustion system designers since radiative heat from the flame is significant for oxy-flames. This study is conducted by varying equivalence ratio, firing input, and CO 2 recirculation ratio. The spectral radiation of premixed oxy-methane...

... August 15, 2017; final manuscript received May 11, 2018; published online June 18, 2018. Editor: Portonovo S. Ayyaswamy. 15 08 2017 11 05 2018 Combustion Computational fluid dynamics Heat and mass transfer Reactive flows References [1] Gómez-Mares , M. , Munoz...

...V. Karmalita This paper deals with the autoregression method to determine the logarithmic decrement and natural frequency of gas oscillations in a combustion chamber. The proposed approach to quantify the impact of combustion noise on the estimates of oscillation decrement is based on a linear...

...Tim Gronarz; Robert Johansson; Reinhold Kneer In this work, the effect of applying different approximations for the scattering phase function on radiative heat transfer in pulverized coal combustion is investigated. Isotropic scattering, purely forward scattering, and a δ-Eddington approximation...

... [23] Harrisa , S. J. , Timmonsa , A. , and Pitz , W. J. , 2009 , “ A Combustion Chemistry Analysis of Carbonate Solvents Used in Li-Ion Batteries ,” J. Power Sources , 193 (2), pp. 855 – 858 . 10.1016/j.jpowsour.2009.04.030 [24] Spotnitz , R. M. , Weaver , J...

...) employing the NA-FPV approach for an H 2 /O 2 combustion field in a single element coaxial combustor under a pressurized condition. The results show that the LES employing the NA-FPV approach can successfully predict the heat flux and capture the effects of heat loss through the cooled walls...

..., such as combustion problems. Contributed by the Heat Transfer Division of ASME for publication in the J OURNAL OF H EAT T RANSFER . Manuscript received August 29, 2016; final manuscript received February 5, 2017; published online April 11, 2017. Assoc. Editor: Gennady Ziskind. 29 08 2016 05 02...

... The effects of embedding inlet turbulators with various turbulence influences on the temperature variation along the combustor wall The parametric study performed in Sec. 5.3 was limited to varying just one parameter, i.e., the inlet turbulent intensity, for one combustion configuration...

... by the Heat Transfer Division of ASME for publication in the J OURNAL OF H EAT T RANSFER . Manuscript received February 13, 2015; final manuscript received November 21, 2016; published online February 1, 2017. Editor: Portonovo S. Ayyaswamy. 13 02 2015 21 11 2016 Combustion Heat...

... their approach to solve the inverse heat conduction problem (IHCP) associated with the application of thermal barrier coatings (TBC) to in-cylinder surfaces of an internal combustion engine. Subsurface temperature measurements are used to calculate surface heat flux profiles. The modified inverse solver...

... 3, 2016; published online January 10, 2017. Assoc. Editor: Milind A. Jog. 01 06 2016 03 11 2016 Combustion Gas turbine heat transfer Reactive flows Hydrogen (H 2 )-fueled combustion has received attention because of its lower environmental impact and has been studied...

... in combustion environments. Currently, the accommodation coefficient has been deduced only after assuming a combustion model for the nano-aluminum particle and changing the accommodation coefficient to fit experimental temperature data. Direct measurement is needed in order to decouple the accommodation...

... and control. Crude oil fouling is a chemical reaction that is, at first order, thermally controlled. In such large furnaces, the predominant heat transfer process is thermal radiation by the hot combustion products, which directly heats the pipes. As radiation fluxes depend on temperature differences...

.... The optimal inlet velocity and precursor concentration for different objective functions considered tend to be near the upper bounds. Combustion Heat and mass transfer Thermal systems Reactive flows Chemical vapor deposition (CVD) [ 1 ] is a process in which the volatile compound...

... are verified for four cases, including a 1D slab, a 2D square enclosure, a 3D cylindrical enclosure, and an axisymmetric flame. All cases have strongly varying radiative properties, and the results are compared with exact solutions and solutions from the photon Monte Carlo method (PMC). Combustion...

... Fractions in Methane/Air Jet Flames ,” Proc. Combust. Inst. , 27 , pp. 1087 – 1095 . [29] Li , G. , and Modest , M. F. , 2003 , “ Importance of Turbulence–Radiation Interactions in Turbulent Diffusion Jet Flames ,” ASME J. Heat Transfer , 125 , pp. 831 – 838 . 10.1115/1.1597621...

... transfer combustion two-phase flow unified theory Growing up in an isolated, time-forgotten hamlet in the hills of Himalayas, without electricity, antibiotics or television, I could never have imagined that I would participate in the birth of a new branch of engineering science—or that one day...

... are in the region (0.15 < r′ < 0.40, 0 < z′ < 1). The amount of heat released by the combustion of the fumes components increases the walls temperature, in spite of the fact that radiative transfers decrease weakly walls temperature. Streamlines ( a ), isotherms ( b ), and isoconcentration of CH 4...