The Experts below are selected from a list of 39261 Experts worldwide ranked by ideXlab platform
Sh. K. Niyazov - One of the best experts on this subject based on the ideXlab platform.
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The IR-Radiation transmission coefficient of a water condensate film on internal solar greenhouse surfaces and hotbed transparent covers as a function of thickness
Applied Solar Energy, 2001Co-Authors: A. Abdullaev, Sh. K. NiyazovAbstract:The experimental results are presented on the determination of IR-Radiation transmission coefficient of a water condensate film on internal surfaces of transparent solar greenhouse film covers and hotbeds partially permeable to IR Radiation as a function of thickness. It is established that water condensate films 60 μm and thicker can be considered impermeable to IR Radiation.
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Design and comparison of heat-engineering quality of transparent film covers of flat solar collectors partially permeable to IR Radiation
Applied Solar Energy, 1998Co-Authors: R. R. Avezov, N R Avezova, Sh. K. NiyazovAbstract:A design calculation method for the penetrating Radiation components of the heat loss coefficients in flat solar-collectors through theIR transparent film covers caused by partial permeability to IR Radiation has been proposed. Applying this method to flat solar collectors with transparent single- and double-layer film covers partially permeable to IR Radiation, the heat losses have been numerically calculated. The total heat loss coefficients of flat solar collectors with transparent single- and double-layer film covers partially permeable to IR Radiation are compared both with each other and those of single-layer cover impermeable to IR Radiation.
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Modeling and calculation of coefficients of penetrating beam heat losses through transparent film covers of semicylindrical solar greenhouses partially permeable to IR Radiation
Applied Solar Energy, 1998Co-Authors: R. R. Avezov, Sh. K. Niyazov, N R AvezovaAbstract:A formation regularity and analytical expressions of penetrating beam heat losses through the transparent single- and double-layer film covers of greenhouses partially permeable to IR Radiation have been established. An example of numerical calculation by the proposed model is given. The total heat loss coefficients through these covers are compared with both each other and those of a single-layer cover impermeable to IR Radiation.
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Simulation of radiant heat transfer in light-transmitting film covers of flat solar collectors partially transparent to IR Radiation
Applied Solar Energy, 1997Co-Authors: R. R. Avezov, Sh. K. Niyazov, N R AvezovaAbstract:The formation of through radiant heat losses in light-transmitting film covers of low-potential solar-thermal plants partially transparent to IR Radiation is presented. Based on the simulation of radiant heat transfer processes in the system of a heat absorber, a light-transmitting film cover partially transparent to IR Radiation, and the sky, the analytical expressions for the through radiant heat loss fluxes in a single- and double-layer cover for flat solar collectors have been established.
N R Avezova - One of the best experts on this subject based on the ideXlab platform.
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Modeling and calculation of coefficients of penetrating beam heat losses through transparent film covers of semicylindrical solar greenhouses partially permeable to IR Radiation
Applied Solar Energy, 1998Co-Authors: R. R. Avezov, Sh. K. Niyazov, N R AvezovaAbstract:A formation regularity and analytical expressions of penetrating beam heat losses through the transparent single- and double-layer film covers of greenhouses partially permeable to IR Radiation have been established. An example of numerical calculation by the proposed model is given. The total heat loss coefficients through these covers are compared with both each other and those of a single-layer cover impermeable to IR Radiation.
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Design and comparison of heat-engineering quality of transparent film covers of flat solar collectors partially permeable to IR Radiation
Applied Solar Energy, 1998Co-Authors: R. R. Avezov, N R Avezova, Sh. K. NiyazovAbstract:A design calculation method for the penetrating Radiation components of the heat loss coefficients in flat solar-collectors through theIR transparent film covers caused by partial permeability to IR Radiation has been proposed. Applying this method to flat solar collectors with transparent single- and double-layer film covers partially permeable to IR Radiation, the heat losses have been numerically calculated. The total heat loss coefficients of flat solar collectors with transparent single- and double-layer film covers partially permeable to IR Radiation are compared both with each other and those of single-layer cover impermeable to IR Radiation.
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Simulation of radiant heat transfer in light-transmitting film covers of flat solar collectors partially transparent to IR Radiation
Applied Solar Energy, 1997Co-Authors: R. R. Avezov, Sh. K. Niyazov, N R AvezovaAbstract:The formation of through radiant heat losses in light-transmitting film covers of low-potential solar-thermal plants partially transparent to IR Radiation is presented. Based on the simulation of radiant heat transfer processes in the system of a heat absorber, a light-transmitting film cover partially transparent to IR Radiation, and the sky, the analytical expressions for the through radiant heat loss fluxes in a single- and double-layer cover for flat solar collectors have been established.
R. R. Avezov - One of the best experts on this subject based on the ideXlab platform.
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Modeling and calculation of coefficients of penetrating beam heat losses through transparent film covers of semicylindrical solar greenhouses partially permeable to IR Radiation
Applied Solar Energy, 1998Co-Authors: R. R. Avezov, Sh. K. Niyazov, N R AvezovaAbstract:A formation regularity and analytical expressions of penetrating beam heat losses through the transparent single- and double-layer film covers of greenhouses partially permeable to IR Radiation have been established. An example of numerical calculation by the proposed model is given. The total heat loss coefficients through these covers are compared with both each other and those of a single-layer cover impermeable to IR Radiation.
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Design and comparison of heat-engineering quality of transparent film covers of flat solar collectors partially permeable to IR Radiation
Applied Solar Energy, 1998Co-Authors: R. R. Avezov, N R Avezova, Sh. K. NiyazovAbstract:A design calculation method for the penetrating Radiation components of the heat loss coefficients in flat solar-collectors through theIR transparent film covers caused by partial permeability to IR Radiation has been proposed. Applying this method to flat solar collectors with transparent single- and double-layer film covers partially permeable to IR Radiation, the heat losses have been numerically calculated. The total heat loss coefficients of flat solar collectors with transparent single- and double-layer film covers partially permeable to IR Radiation are compared both with each other and those of single-layer cover impermeable to IR Radiation.
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Simulation of radiant heat transfer in light-transmitting film covers of flat solar collectors partially transparent to IR Radiation
Applied Solar Energy, 1997Co-Authors: R. R. Avezov, Sh. K. Niyazov, N R AvezovaAbstract:The formation of through radiant heat losses in light-transmitting film covers of low-potential solar-thermal plants partially transparent to IR Radiation is presented. Based on the simulation of radiant heat transfer processes in the system of a heat absorber, a light-transmitting film cover partially transparent to IR Radiation, and the sky, the analytical expressions for the through radiant heat loss fluxes in a single- and double-layer cover for flat solar collectors have been established.
Dietrich Knorr - One of the best experts on this subject based on the ideXlab platform.
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effects of temperature ph and controlled water activity on inactivation of spores of bacillus cereus in paprika powder by near IR Radiation
Journal of Food Engineering, 2008Co-Authors: N Staack, Lilia Ahrne, Elisabeth Borch, Dietrich KnorrAbstract:Abstract A process to decontaminate paprika powder using variable near-infrared (IR) Radiation was tested using a closed sample holder allowing water to be retained in the powder. The reduction in the concentration of Bacillus cereus spores and changes in water activity ( a w ) and colour were measured during IR heating. High heat flux was applied initially to heat the powder rapidly to the desIRed temperature, followed by low heat flux to maintain the temperature for a given time. The water activity ( a w ) value of the powder could be maintained within the bulk of the closed sample, but the surface a w value decreased during heating. Due to carotenoid sensitivity to temperature, surface and overall colour values declined, though remaining acceptable values of medium red and red, respectively. For powder with an a w value of 0.88 heated to 95–100 °C, the load of B. cereus spores was reduced by 4.5 log 10 CFU/g within 6 min; the final spore concentration remained approximately 2 log 10 CFU/g due to tailing. Reducing pH to 4.0 from 4.5 did not significantly affect the reduction of the B. cereus spore concentration.
G. G. Khalimov - One of the best experts on this subject based on the ideXlab platform.
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Absorption of IR Radiation by Water Vapor and Carbon Dioxide in Solar Greenhouses
Applied Solar Energy, 2009Co-Authors: A. G. Khalimov, B. E. Khairiddinov, V. D. Kim, G. G. KhalimovAbstract:Parameters of IR Radiation absorption by water vapor and carbon dioxide in solar greenhouses are considered. The average values of theIR absorptance are determined.
