Clear sky global solar irradiance on tilt angles of photovoltaic module in Perlis, Northern Malaysia

Radzi

Energy Science & Engineering

et al. 2014

In recent years, research about the application and optimization of PV panels has grown rapidly. Especially for stand-alone solar systems there have been some problems related to first stages of design and application. Finding the optimum slope of PV panels in order to maximize the absorbed solar radiation is considered as one of the major obstacles. Although in Malaysia there have been some research works about finding of optimal tilt angle, however, this research work aims to start investigation about slope of PV panels for three villages without electricity and prior research. The Liu and Jordan model is applied to find the monthly optimal tilt angle and fixed tilt angle for the application of solar energy in these rural locations. The results demonstrate that the optimal tilt angle in these locations is less than 5°.

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Optimization and comparison analysis for application of PV panels in three villages

Radzi

Energy Science & Engineering

et al. 2014

2014 17th International Conference on Computer and Information Technology (ICCIT)

“…Latitude is the angular distance of a point on earth's surface north or south from the equator measured along a meridian. The hour angle [7] is the number of degrees that the earth must rotate before the sun will be directly over local meridian. Considering the earth rotates 360 degrees in 24 hours, Hour angle (H) is given as (3).…”

Section: Methodsmentioning

confidence: 99%

Towards a novel sensorless dual axis solar tracking algorithm for Bangladeshi PV modules

Ahmed

Rony

2014

There have been different types of solar trackers employing different algorithms and techniques. Nevertheless most of them adopt the use of different types of solar radiation sensors to detect the position of the sun over the sky. Consequently these algorithms introduce the use of advanced mathematics and complex hardware. In this paper, the authors propose a much simpler algorithm which uses no sensor and no advanced mathematics. The approximate positions of the sun over the sky in Bangladesh from 9.00 AM to 3.00 PM have been calculated for 365 days. Then linear quantization technique has been applied to define the optimum altitude and azimuths of the sun at each hour considering a step size of 10 degrees. These optimum altitude and azimuth angles can be fed to a simple low cost microcontroller for controlling the movement of the motors used in the tracker.

AIP Conference Proceedings

“…Hence, if the TPVI is to be installed in one particular area, the information of the solar radiation is vital to decide whether it is worthwhile of such installation. The solar irradiation above 3 kWh/m 2 or solar irradiance above 300 W/m 2 is considered suitable to run the TPVI [12,13].…”

Section: Nomenclaturesmentioning

confidence: 99%

Output characteristics of photovoltaic module in Medan based on estimated solar irradiance using hargreaves method for application assessment of transformerless photovoltaic inverter

Alam¹,

Mashor²,

Irwanto³

et al. 2016

Self Cite

Abstract. Referring to the Department of Meteorology, Climatology and Geophysics in Medan, North Sumatera, there is missing data of solar irradiance for the year of 2014. This paper is presented to estimate the solar irradiance using Hargreaves method based on the latitude and the monthly minimum and maximum temperature of the missing data. The temperature and estimated solar irradiance were applied to observe the output characteristics of a photovoltaic (PV) module. These parameters were used to assess the potential of the transformerless photovoltaic inverter (TPVI). Simulation results show that the average monthly solar irradiation was 6.98 kWh/m 2 using Hargreaves method. This was more than twice greater the normal solar radiation (3 kWh/m 2 ), which indicated that the sky in Medan was clear and had very high solar irradiation intensity for the year of 2014. These findings suggest there are a big potential of solar irradiation for generating the TPVI in Medan.