A Study of Importance of Solar Calculations for "Two Colored Rainbow System" in Istanbul

Er, Zuhal

doi:10.12693/aphyspola.128.b-477

Cited by 8 publications

(6 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By using these literatures' equations estimation of the tilt angle of the solar panel in daily and seasonally basis is done in this study. In this point to have a basic estimation, the values from the solar angle calculator [1,2,3,11,[17][18][19][20][21][22][23] are used for calculating tilt angle of the solar panel in a year. The β tilt angles are shown in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…It is clear that the solar angles will be different for different location during the same period. A critical parameter for installing a PV panel is the tilt angle, since PV panel operation efficiency varies by changing exposure to the Sun radiation [2,3,18,19].…”

Section: Basics Of the Solar Energymentioning

confidence: 99%

“…The first step of optimum design purpose has to be determined the tilt angle of a PV panel due to the Sun light insulation at any latitude for any surface azimuth angle. Some studies are rarely given by researchers for optimum tilt angles for fixed PV systems such as the tilt angle is suggested with latitude ±15 o by Lunde [16], with (latitude+15) ±15 o by Duffie and Beckman [11] and with latitude ±8 o by Lewis [4,18,19].…”

Section: Basics Of the Solar Energymentioning

confidence: 99%

See 2 more Smart Citations

Dual axis solar angle tracking system without any sensor

Balcı

2018

Journal of Energy Systems

View full text Add to dashboard Cite

Owing to swift and irrepressible increase in globalization, the power requirement and energy utilization are also increasing day by day. To compensate the power needs, various renewable energy sources which consist solar energy systems are been used in order to satisfy this ample demand. In order to eliminate the efficiency limits of photovoltaic panel in a solar energy system, there are several methods by solar tracking. In this study, a dual axis solar tracker system is newly designed and tested at several times to track the sun position. A new approach to solar panel systems has been investigated and designed in this study via motivation of no sensor and less mechanical construction. Since a fixed solar panel will not work with the highest solar radiation at every moment of a day; a mobile system which has solar tracker can consider that it will work more efficiently. Owing to the restricted solar radiation reception of fixed panel systems for, a new fabricatemore efficient solar panel has been designed. Photovoltaic tracking mechanism having two axes has been constructed and fabricated. The parts of the system have selected carefully via the multi decision criteria and boundary conditions of the system has settled by calculating solar angles. This paper presents the mentioned design construction detail and-however there is no any sensor-working results of the tracker whereby the movement of a PV panel was controlled to setting of programming of a programmable logic-controller (PLC). To perform the technical task, all electronic circuits and necessary software have been designed and developed with some opportunities in industry and Istanbul Technical University. Fabricated this new design tracker works very well and it is tested with several experimental studies. The results of the experimental studies represent best performance of the fabricated new design. Due to results, sensibility for vertical axis movement of the system is stated 1 degree via calculation. Based on the obtained results this study can conclude that the fabricated new design for a solar dual axis tracking system offers several advantages concerning the improvement of efficiency.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Basics Of the Solar Energymentioning

confidence: 99%

Section: Basics Of the Solar Energymentioning

confidence: 99%

See 1 more Smart Citation

Dual axis solar angle tracking system without any sensor

Balcı

2018

Journal of Energy Systems

View full text Add to dashboard Cite

show abstract

“…The monthly average daily extraterrestrial radiation on the horizontal surface is formalized with Eq. (3) [1,[3][4][5][6][7][8][9]:…”

Section: Methodsmentioning

confidence: 99%

The Cloudless Effect Evaluation for Hourly Irradiance in Turkey

Derici

Turna

et al. 2018

Acta Phys. Pol. A

Self Cite

View full text Add to dashboard Cite

There are several ways to predict and/or estimate solar radiation in a particular defined area. It is important to model and design the efficiency of solar systems such as time series, solar radiation data. The time series data are significant for performance prediction and other purposes. The solar radiation data which belong to the defined location are not always available. In this study, it is investigated that how affected hourly solar radiation value under conditions of cloudiness. The methods in the literature are based on a decomposition model that calculates solar radiation components related to atmospheric transmittance. This study aims to evaluate the hourly irradiance by added effect of cloudiness on calculations for Turkey. While a decision matrix was used in several methods, the regression correlation of meteorological parameters was used in the other methods. In addition, the API application program is created by Java programming language. This enables users to obtain solar radiation for getting data, processing, extracting meaningful result and making these processes respectively where they are. The results show that the climate variables, air temperature, and solar radiation were highly correlated to transpiration.

show abstract

“…Nowadays, fossil fuels are commonly used and are increasingly depleted. Therefore, there has been a growing interest in alternative energy sources, such as solar * corresponding author; e-mail: muslumarici@gmail.com energy [1][2][3][4] and in energy saving [5,6]. Recently, incorporation of phase change materials (PCM) into building structures has become a fashion method to reduce heating and cooling energy consumption (hence to save energy), due to their high thermal mass [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Phase Change Materials on Time Lag, Decrement Factor and Heat-Saving

Bilgin

Arıcı

2017

Acta Phys. Pol. A

View full text Add to dashboard Cite

In this study, the effect of phase change materials on the time lag, decrement factor and heat-saving is examined numerically. The calculations are conducted for four different cities located at different climatic zones in Turkey, considering both summer and winter conditions, in order to explore the potential heating and cooling energy savings by employing phase change materials. A solar-air temperature, which is a function of time and solar radiation, was taken into consideration as external boundary condition for each city. The results of the present study show that employment of phase change materials in walls of the buildings has a pronounced effect on the time lag and decrement factor. It is concluded that a significant amount of heating energy can be saved and thermal comfort can be enhanced considerably by incorporating phase change materials into external walls. However, a proper phase change material must be selected, considering different climatic conditions.

show abstract

A Study of Importance of Solar Calculations for "Two Colored Rainbow System" in Istanbul

Cited by 8 publications

References 3 publications

Dual axis solar angle tracking system without any sensor

Dual axis solar angle tracking system without any sensor

The Cloudless Effect Evaluation for Hourly Irradiance in Turkey

Effect of Phase Change Materials on Time Lag, Decrement Factor and Heat-Saving

Contact Info

Product

Resources

About