... finite element analysis finite volume methods gas turbines heat conduction Monte Carlo methods ray tracing solar power In previous publications [( 1 ), 2 ] we reported on a novel design of an air-based pressurized solar receiver for power generation via solar-driven gas turbines. The main...

... Coating ,” Proceedings of the 14th Biennial CSP SolarPACES Symposium . 06 05 2011 11 05 2011 28 07 2011 28 07 2011 computational fluid dynamics convection design engineering flow simulation heat conduction heat losses heat radiation Monte Carlo methods pipe flow...

... Parabolic Trough Receiver ,” Technical Report No. NREL/TP-550-45633. 28 03 2010 14 04 2010 29 06 2010 29 06 2010 cavity resonators convection heat conduction heat transfer Monte Carlo methods solar absorber-convertors solar radiation Cavity-receivers...

... heat transfer rates to the heat exchanger ( 27 ). thermal stores immersed heat exchanger negatively buoyant flow confined flow flow simulation heat conduction heat exchangers numerical analysis 04 09 2009 24 01 2010 21 06 2010 21 06 2010 Two...

... estimation by inversion of a linear heat conduction model. It is shown that unknown sources are the output of a linear and invariant state model whose inputs are measured temperatures within the PCM. Enthalpy-temperature functions, as well as parameters derived from heat capacities, transition temperatures...

... be considered acceptable within the limits of the chosen turbulence models and computational resources building thermal simulation solar heat gains envelope cooling CFD computational fluid dynamics convection energy conservation external flows flow simulation heat conduction heat...

... in the collector and heat conduction in the flow direction through the air and the materials of the collector could be neglected. The maximum differences in outlet temperature and collector efficiency for constant flow rate between the analysis and the experiment were 1.8 ° C and 6% of the collector efficiency...

... all the processes described above: the transient heat conduction inside the walls/ceiling, free/forced convection of air, radiation inside the room, conduction and phase change inside the storage units. The numerical calculations are performed simultaneously, using the FLUENT 6.1 software...

... transfer functions (CTFs) have long been used to predict transient heat conduction in such programs. Phase changes often do not occur at a single temperature, but do so over a range of temperatures. The phase change energy can be represented by an elevated heat capacity over the temperature range during...

.... The model, hence, allows for a fast estimate of the influence of these parameters on the reactor performance. 12 07 2004 09 02 2005 solar power solar energy concentrators chemical reactors radiative transfer heat conduction chemical reactions solar absorber-convertors solar...

... Solar Division; July 2, 2003; final revision July 7, 2004. Associate Editor: M. Krarti. 02 July 2003 07 July 2004 07 02 2005 solar absorber-convertors heat conduction solar heating computational fluid dynamics Unglazed transpired collectors are perforated panels...

... power input: 7% reflected at the window, 23% re-radiated through the aperture, 4% needed for heating N 2 , and 66% lost by heat conduction through the insulation. 4 Calculated and measured temperature distribution along the cavity wall. The baseline configuration was used...

... of precipitation, soil type, foundation insulation, water table depth, and freezing on the heat transfer from the building foundation. Comparisons are made with a simple heat conduction model to illustrate the dependency of the soil thermal conductivity on moisture content. Deru, M., and Kirkpatrick, A., 2001...

... terms: heat conduction, vapor driven by temperature gradients, vapor driven by matric potential gradients, and liquid convection at depths of z =−0.35 m and −0.95 m. A positive value represents heat flow into the ground from the atmosphere. At z =−0.35 m, the maximum heat flux into the ground...

...Pirawas Chuangchid; Moncef Krarti General semi-analytical solutions for the steady-state heat conduction problems for circular and three-dimensional rectangular slab-on-grade floors with uniform insulation are presented. The soil temperature field, and the total slab heat loss are presented...

...). [S0199-6231(00)00304-X] thermal energy storage phase transformations heat conduction heat radiation finite volume methods melting Canisters are mounted on a cooling air tube placed within a closed test chamber (for test rig details see 7 ). The top and the bottom walls of the canisters...

... the performance of a hydronic pavement heating system as a supplemental heat rejecter in ground-source heat pump systems. The model uses a finite difference method to solve the transient two-dimensional heat conduction equation and has been formulated for use in component based system simulation. Full-scale...

...Pirawas Chuangchid; Moncef Krarti, Ph.D., P.E. Analytical solutions for steady-periodic ground-coupled heat conduction problems for cylindrical and three-dimensional rectangular slab-on-grade floors beneath refrigerated structures with uniform and partial insulation are presented in this paper...

... transfer heat conduction ventilation passive solar buildings It is well known that massive walls are used in passive solar heating and ventilating systems 1 . To reduce heat losses by convection and infra-red radiation from the warm wall to the environment a glazing system is employed...