scholarly journals Application of Two Unknown Quantities and Three Points Interpolation in the Atmospheric Transmittance of Infrared Radiation

2012 ◽  
Author(s):  
Honghui Sun ◽  
Min Li ◽  
Jianshe Song
Keyword(s):  
Infrared Radiation ◽  
Atmospheric Transmittance

Application of Two Unknown Quantities and Three Points Interpolation in the Atmospheric Transmittance of Infrared Radiation

2013 ◽  
Vol 756-759 ◽  
pp. 3665-3668
Author(s):  
Hong Hui Sun ◽  
Min Li ◽  
Jian She Song
Keyword(s):  
Infrared Radiation ◽  
Interpolation Method ◽  
Experimental Results ◽  
Engineering And Technology ◽  
Atmospheric Transmittance

The atmospheric transmittance of infrared radiation is the important parameter on the studies of infrared radiation, the Computation of atmospheric transmittance is professional and complicated and it is inconvenient for the application of engineering and technology. In order to gained the atmospheric transmittance of infrared radiation rapidly when the height of infrared apparatus place and the down range distance between infrared apparatus and infrared object are changed, Lagranges two unknown quantities and three points interpolation is used to computer the interpolations of the atmospheric transmittance of infrared radiation by the MODTRAN software, then the available data of atmospheric transmittance are gained. The experimental results show the interpolation method is effective and valuable in engineering applation.

Study of Flying Projectile’s Properties of Infrared Radiation

2012 ◽  
Vol 268-270 ◽  
pp. 1648-1653
Author(s):  
Yue Ying Lv ◽  
Ying An
Keyword(s):  
Surface Temperature ◽  
Infrared Radiation ◽  
Attenuation Factor ◽  
Radiation Energy ◽  
Light Level ◽  
Detection Distance ◽  
Low Light ◽  
Linear Change ◽  
Radiation Properties ◽  
Atmospheric Transmittance

In order to solve the problem that the optic-electric detecting target board fails to work at nights or under low light level，it has studied the flying projectile’s properties of infrared radiation and the radiation attenuation properties of the flying projectile in the atmosphere. Through establishing the differential equations, the projectile’s surface temperature is obtained to calculate the flying projectile’s infrared radiation properties , according to atmosphere’s transmitting properties，the calculation method of atmospheric transmittance rate. The infrared radiation properties of three typical projectile are simulated by utilizing MATAB. The simulation result shows that the surface temperature of the flying projectile has a linear change with its velocity; the atmospheric transmittance rate is inversely proportional to the detection distance; Once the atmospheric attenuation factor is different, then the radiation energy received by the detector will be different.

Infrared radiation measurement based on proportional corrected atmospheric transmittance

2012 ◽  
Vol 20 (7) ◽  
pp. 1626-1635 ◽  
Author(s):  
杨词银 YANG Ci-yin ◽  
张建萍 ZHANG Jian-ping ◽  
曹立华 CAO Li-hua
Keyword(s):  
Infrared Radiation ◽  
Radiation Measurement ◽  
Atmospheric Transmittance

scholarly journals Numerical calculation of passenger compartment cooling effect under the action of radiative cooling film based on MATLAB

2021 ◽  
Vol 2125 (1) ◽  
pp. 012027
Author(s):  
Yipeng Chao ◽  
Xin Luo ◽  
Chao Zheng ◽  
Yipeng Chao
Keyword(s):  
Ambient Temperature ◽  
Infrared Radiation ◽  
Simulation Models ◽  
Cooling Effect ◽  
Radiative Cooling ◽  
Passenger Compartment ◽  
Time Space ◽  
Cold Source ◽  
Radiation Material ◽  
Atmospheric Transmittance

Abstract Radiative cooling uses space cold source to cool the object, and the radiative cooling film made by using this principle can be applied to automobiles effectively to save the refrigeration resources of automobiles. However, due to the limitation of economy, time, space and other factors, it is difficult to carry out comprehensive research on the actual film-forming cooling effect. Based on the principle of passive radiative cooling, a set of simulation models is developed, which is applied to the selection of infrared radiation materials for automotive radiative cooling film and the study of the influence of environmental factors on the radiative cooling effect. SiO2 was finally selected as infrared radiation material. At the same time, the theoretical cooling temperature of the radiative cooling film applied to the passenger compartment of automobiles can reach 6.8°C under the conditions of 35°C ambient temperature, 0.99 atmospheric transmittance and 10 heat transfer coefficient, using SiO2 as infrared radiation material and PE as dispersion substrate. At the same time, the cooling effect of the radiative cooling film is positively correlated with the ambient temperature, atmospheric transmittance to some extent.

A Study on Far-infrared Radiation and Proliferation of Ocherous Cotton Quilt Fabrics

2019 ◽  
Vol 8 (2) ◽  
pp. 71-77
Author(s):  
Ku Yeon Lee ◽  
◽  
Hyung H. Lee ◽  
Suk Chan Hahm
Keyword(s):  
Infrared Radiation ◽  
Far Infrared ◽  
Far Infrared Radiation

Greenhouses, hot water bottles, cycles and the future of New Zealand climate

2009 ◽  
pp. 61-67
Author(s):  
W.P. De Lange
Keyword(s):  
New Zealand ◽  
Thermal Energy ◽  
Infrared Radiation ◽  
Little Ice Age ◽  
Hot Water ◽  
Ice Age ◽  
The Sun ◽  
Weather Patterns ◽  
Time Periods ◽  
Almost All

The Greenhouse Effect acts to slow the escape of infrared radiation to space, and hence warms the atmosphere. The oceans derive almost all of their thermal energy from the sun, and none from infrared radiation in the atmosphere. The thermal energy stored by the oceans is transported globally and released after a range of different time periods. The release of thermal energy from the oceans modifies the behaviour of atmospheric circulation, and hence varies climate. Based on ocean behaviour, New Zealand can expect weather patterns similar to those from 1890-1922 and another Little Ice Age may develop this century.

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