1. Spectral transmittance of water and sodium chloride water solution as working substance for a solar pond
- Author
-
Kimio Kanayama, Noboru Endoh, Tsutomu Nemoto, and Hiromu Baba
- Subjects
Fluid Flow and Transfer Processes ,Materials science ,business.industry ,Sodium ,Analytical chemistry ,chemistry.chemical_element ,Air mass (solar energy) ,Solar energy ,Solar pond ,Optics ,chemistry ,Attenuation coefficient ,Absorptance ,Thermal ,Transmittance ,business - Abstract
The transmission properties of water and sodium chloride water solutions with various salt concentrations were investigated. This paper concerns the measurement of the spectral transmittance and the calculation of the total transmittance for water and NaCl water solutions. The spectral transmittance of the NaCl water solutions over the infrared and nearby regions increased with increasing salt concentration for constant specimen thickness and air mass. The spectral transmittance was found to be useful for precisely calculating the thermal performance of a solar pond, and by using an effective absorption coefficient, a five-partition method dividing the wavelengths into five bands by which the total transmittance up to a water depth of 3 m could be calculated, was found to be important as a practical method of solar pond technology. © 1997 Scripta Technica, Inc. Heat Trans Jpn Res, 26(1): 1–15, 1997
- Published
- 1997
- Full Text
- View/download PDF