Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Radiative cooling computed for model atmospheres

Not Accessible

Your library or personal account may give you access

Abstract

Calculations of spectral radiance are reported from several model atmospheres appropriate to different climatic conditions by use of the LOWTRAN 5 computer code. From these data we evaluate the radiative cooling power and the temperature drop below ambient temperature for horizontal surfaces that radiate toward the sky. The surfaces are ideal blackbodies or have ideal infrared-selective properties with zero reflectance in the 8–13-μm range and unity reflectance elsewhere. For freely radiating surfaces, the cooling power at ambient temperature lies between 58 Wm−2 and 113 Wm−2 for the different surfaces and model atmospheres. The maximum temperature difference for a device with a nonradiative heat transfer coefficient of 1 Wm−2 K−1 is between 11 and 21°C for a blackbody and between 18 and 33°C for an infrared-selective surface. For radiators arranged so that they intercept only the atmospheric zenith radiance, the cooling powers and temperature differences are higher than for freely radiating surfaces, the increase being largest for humid atmospheres. The influence of altered contents of water vapor was found to affect strongly the radiative cooling, whereas changes in ozone and aerosol abundance were less important. The significance of these results to different cooling applications is briefly discussed.

© 1982 Optical Society of America

Full Article  |  PDF Article
More Like This
Radiative cooling and frost formation on surfaces with different thermal emittance: theoretical analysis and practical experience

Ivar Hamberg, J. Stefan E. M. Svensson, Tord S. Eriksson, Claes-Göran Granqvist, Per Arrenius, and Fredrik Norin
Appl. Opt. 26(11) 2131-2136 (1987)

Radiative transfer. I. Atmospheric transmission monitoring with modeling and ground-based multispectral measurements

Harry D. Kambezidis, Vera Djepa-Petrova, and Ayastassios D. Adamopoulos
Appl. Opt. 36(27) 6976-6982 (1997)

Fast radiative transfer model for simulation of infrared atmospheric sounding interferometer radiances

Marco Matricardi and Roger Saunders
Appl. Opt. 38(27) 5679-5691 (1999)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved