Computation of Solar Radiation on Horizontal Surface Over Some Iraqi Cities
In this study a simple correlation is developed to predict monthly average daily global solar radiation on a horizontal surfaces for different Iraqi locations. For fiveyears interval (1981-1985), monthly average daily global solar radiation and sunshine duration data were measured on horizontal surf...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2011-07-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_31886_a6f3f40348a81242edf84e081b2065c6.pdf |
| _version_ | 1797325471251169280 |
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| author | Firas Aziz Ali |
| author_facet | Firas Aziz Ali |
| author_sort | Firas Aziz Ali |
| collection | DOAJ |
| description | In this study a simple correlation is developed to predict monthly average daily global solar radiation on a horizontal surfaces for different Iraqi locations. For fiveyears interval (1981-1985), monthly average daily global solar radiation and sunshine duration data were measured on horizontal surfaces at some Iraqi cities (Kirkuk, Baghdad, Nasiriyah). A mathematical linear correlation represented by (Angstrom correlation) was applied to estimate the global radiation from hours of sunshine duration for these cities at the specified day of each month as shown in tables (2a, b, c). The model was compared with three different mathematical correlations models (quadratic, logarithmic, and exponential) to get the best fit among them. The obtained models have a high value of regression coefficient and give best fit through the measured values. In this study, the monthly average daily diffuse and beam radiations on horizontal surface were estimated from the measured global radiation. The overall results show that, Baghdad city received higher radiation on the horizontal surface than Kirkuk and Nasiriyah. |
| first_indexed | 2024-03-08T06:09:56Z |
| format | Article |
| id | doaj.art-db5cdcd80aad4bb1bda5d7c9dab46ca9 |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T06:09:56Z |
| publishDate | 2011-07-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-db5cdcd80aad4bb1bda5d7c9dab46ca92024-02-04T17:42:13ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582011-07-0129102026204310.30684/etj.29.10.1431886Computation of Solar Radiation on Horizontal Surface Over Some Iraqi CitiesFiras Aziz AliIn this study a simple correlation is developed to predict monthly average daily global solar radiation on a horizontal surfaces for different Iraqi locations. For fiveyears interval (1981-1985), monthly average daily global solar radiation and sunshine duration data were measured on horizontal surfaces at some Iraqi cities (Kirkuk, Baghdad, Nasiriyah). A mathematical linear correlation represented by (Angstrom correlation) was applied to estimate the global radiation from hours of sunshine duration for these cities at the specified day of each month as shown in tables (2a, b, c). The model was compared with three different mathematical correlations models (quadratic, logarithmic, and exponential) to get the best fit among them. The obtained models have a high value of regression coefficient and give best fit through the measured values. In this study, the monthly average daily diffuse and beam radiations on horizontal surface were estimated from the measured global radiation. The overall results show that, Baghdad city received higher radiation on the horizontal surface than Kirkuk and Nasiriyah.https://etj.uotechnology.edu.iq/article_31886_a6f3f40348a81242edf84e081b2065c6.pdfglobal solar radiationbeam radiationdiffuse radiationand relative sunshine durationand meteorological data |
| spellingShingle | Firas Aziz Ali Computation of Solar Radiation on Horizontal Surface Over Some Iraqi Cities Engineering and Technology Journal global solar radiation beam radiation diffuse radiation and relative sunshine duration and meteorological data |
| title | Computation of Solar Radiation on Horizontal Surface Over Some Iraqi Cities |
| title_full | Computation of Solar Radiation on Horizontal Surface Over Some Iraqi Cities |
| title_fullStr | Computation of Solar Radiation on Horizontal Surface Over Some Iraqi Cities |
| title_full_unstemmed | Computation of Solar Radiation on Horizontal Surface Over Some Iraqi Cities |
| title_short | Computation of Solar Radiation on Horizontal Surface Over Some Iraqi Cities |
| title_sort | computation of solar radiation on horizontal surface over some iraqi cities |
| topic | global solar radiation beam radiation diffuse radiation and relative sunshine duration and meteorological data |
| url | https://etj.uotechnology.edu.iq/article_31886_a6f3f40348a81242edf84e081b2065c6.pdf |
| work_keys_str_mv | AT firasazizali computationofsolarradiationonhorizontalsurfaceoversomeiraqicities |