Study of solar radiation data for Hong Kong

Joseph C. Lam; Danny H. W. Li

doi:10.1016/0196-8904(95)00179-4

Study of solar radiation data for Hong Kong

Joseph C. Lam, Danny H. W. Li

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

40 Citations (Scopus)

Abstract

In 1991, a measuring station was set up at City Polytechnic of Hong Kong to measure hourly global and diffuse solar radiation. This paper describes the measurements made from 1991 to 1993 and some of the findings from the data observed. The frequency distribution and magnitude of the average solar radiation values are computed and examined. Symmetry of the solar radiation around solar noon and seasonal variations are noted and discussed. Monthly average daily clearness index (K_t) and diffuse fraction (K) for all months are determined, and their implications for clear and cloudy days estimation are remarked. Theoretical models to predict hourly radiation from daily values have been tested, and it has been found that the models are applicable to Hong Kong.

Original language	English
Pages (from-to)	343-351
Journal	Energy Conversion and Management
Volume	37
Issue number	3
DOIs	https://doi.org/10.1016/0196-8904(95)00179-4
Publication status	Published - Mar 1996

Research Keywords

Clearness index
Diffuse radiation
Diffuse traction
Direct radiation
Global radiation
Monthly average daily
Monthly average hourly

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title = "Study of solar radiation data for Hong Kong",

abstract = "In 1991, a measuring station was set up at City Polytechnic of Hong Kong to measure hourly global and diffuse solar radiation. This paper describes the measurements made from 1991 to 1993 and some of the findings from the data observed. The frequency distribution and magnitude of the average solar radiation values are computed and examined. Symmetry of the solar radiation around solar noon and seasonal variations are noted and discussed. Monthly average daily clearness index (Kt) and diffuse fraction (K) for all months are determined, and their implications for clear and cloudy days estimation are remarked. Theoretical models to predict hourly radiation from daily values have been tested, and it has been found that the models are applicable to Hong Kong.",

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N2 - In 1991, a measuring station was set up at City Polytechnic of Hong Kong to measure hourly global and diffuse solar radiation. This paper describes the measurements made from 1991 to 1993 and some of the findings from the data observed. The frequency distribution and magnitude of the average solar radiation values are computed and examined. Symmetry of the solar radiation around solar noon and seasonal variations are noted and discussed. Monthly average daily clearness index (Kt) and diffuse fraction (K) for all months are determined, and their implications for clear and cloudy days estimation are remarked. Theoretical models to predict hourly radiation from daily values have been tested, and it has been found that the models are applicable to Hong Kong.

AB - In 1991, a measuring station was set up at City Polytechnic of Hong Kong to measure hourly global and diffuse solar radiation. This paper describes the measurements made from 1991 to 1993 and some of the findings from the data observed. The frequency distribution and magnitude of the average solar radiation values are computed and examined. Symmetry of the solar radiation around solar noon and seasonal variations are noted and discussed. Monthly average daily clearness index (Kt) and diffuse fraction (K) for all months are determined, and their implications for clear and cloudy days estimation are remarked. Theoretical models to predict hourly radiation from daily values have been tested, and it has been found that the models are applicable to Hong Kong.

KW - Clearness index

KW - Diffuse radiation

KW - Diffuse traction

KW - Direct radiation

KW - Global radiation

KW - Monthly average daily

KW - Monthly average hourly

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U2 - 10.1016/0196-8904(95)00179-4

DO - 10.1016/0196-8904(95)00179-4

M3 - RGC 21 - Publication in refereed journal

SN - 0196-8904

VL - 37

SP - 343

EP - 351

JO - Energy Conversion and Management

JF - Energy Conversion and Management

IS - 3

ER -

Study of solar radiation data for Hong Kong

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