Research Article
Comparative Analysis of All-Sky Luminous Efficacy Models Based on Calculated and Measured Solar Radiation Data of Four Worldwide Cities
Table 1
Performance summary of various luminous efficacy models in various location.
(a) |
| | Models | Type | MBE (lx) | RMSE (lx) | Reference: city used in the research |
| | Constant (110 lm/W) | Global | −1667.0 | 3277.0 | [18]: Edinburgh, UK | | Constant (120 lm/W) | Diffuse | −82.0 | 1870.0 | [18]: Edinburgh, UK | | Littlefair [6] | Global | −767.0 | 2842.0 | [18]: Edinburgh, UK | | Diffuse | −945.0 | 1580.0 | [18]: Edinburgh, UK | | Global | −1120.0 | 2210.0 | [18]: London, UK | | Diffuse | 100.0 | 990.0 | [18]: London, UK | | Perez [1] | Global | 410.0 | 1160.0 | [18]: London, UK | | Diffuse | 180.0 | 660.0 | [18]: London, UK |
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(b) |
| | Models | Yield | MBE (%) | RMSE (%) | Reference: city used in the research |
| | Constant (110 lm/W) | Global | 0.6 | 8.2 | [17]: Arcavacata, Italy | | Constant (120 lm/W) | Diffuse | 3.7 | 20.2 | [17]: Arcavacata, Italy | | Constant (110 lm/W) | Global | −2.1 | 6.7 | [17]: Osaka, Japan | | Constant (120 lm/W) | Diffuse | 8.7 | 15.0 | [17]: Osaka, Japan | | Littlefair [6] | Global | −1.6 | 10.4 | [19]: Helsinki, Finland | | Perez [1] | Global | −0.6 | 6.7 | [19]: Helsinki, Finland | | Global | −4.1 | 10.2 | [17]: Arcavacata, Italy | | Diffuse | 8.2 | 24.4 | [17]: Arcavacata, Italy | | Global | −6.5 | 10.1 | [17]: Osaka, Japan | | Diffuse | 5.9 | 16.4 | [17]: Osaka, Japan | | Global | 12.0 | 13.0 | Muneer, 2005: Fukuoka, Japan | | Olseth and Skartveit [8] | Global | −0.4 | 8.0 | [19]: Helsinki, Finland | | Muneer and Kinghorn [7] | Global | 4.3 | 9.4 | [19]: Helsinki, Finland | | Global | 3.3 | 9.4 | [17]: Arcavacata, Italy | | Diffuse | 3.7 | 19.9 | [17]: Arcavacata, Italy | | Global | 2.2 | 5.3 | [17]: Osaka, Japan | | Diffuse | 6.4 | 14.3 | [17]: Osaka, Japan |
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