Ag Sufiyan Abd Hamid (2024) Fundamental observation on photovoltaic PV panel output based on various ambient temperature and artificial irradiance exposure.
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Abstract
The output of photovoltaic (PV) panels is influenced by ambient temperature and irradiance levels, which are critical for accurate energy production planning and prediction. This study aimed to quantify the effects of these variables on PV panel output by measuring open circuit voltage (Voc) and short circuit current (Isc) under controlled conditions. Two distinct tests were conducted: Test 1 assessed the impact of temperature, and Test 2 evaluated the effect of irradiance. In Test 1, a 10-watt PV panel was exposed to a 500-watt halogen spotlight at a fixed distance of 50 cm. The temperature varied from 27.5°C to 42.1°C, and parameters including Voc, Isc, and panel temperature (Tpv) were recorded every 5 minutes until results stabilized. Power output, calculated from these measurements, exhibited a decrease with rising temperature, ranging from 0.9363 to 0.9675 watts, demonstrating an inverse relationship. In Test 2, irradiance was adjusted between 140-220V AC using the same halogen spotlight setup. The irradiance levels ranged from 54.8 to 184.8 W/m², and power output increased proportionally, from 0.2579 to 0.8505 watts. This behaviour is attributed to variations in Isc, while Voc remained relatively stable. The findings reaffirm the fundamental characteristics of PV panel performance, with temperature negatively affecting power output due to changes in Voc, and irradiance positively affecting output due to increased Isc. This study provides essential insights into how temperature and irradiance influence PV panel efficiency, aiding in more precise output predictions and system planning.
| Item Type: | Proceedings |
|---|---|
| Keyword: | Solar, Photovoltaic, Temperature effect, Irradiance effect, Open circuit voltage, Short circuit current |
| Subjects: | T Technology > T Technology (General) > T1-995 Technology (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1-9971 Electrical engineering. Electronics. Nuclear engineering |
| Department: | FACULTY > Faculty of Science and Natural Resources |
| Depositing User: | SITI AZIZAH BINTI IDRIS - |
| Date Deposited: | 24 Mar 2025 12:35 |
| Last Modified: | 24 Mar 2025 12:35 |
| URI: | https://eprints.ums.edu.my/id/eprint/43277 |
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