Martynov V. L., Gorpinenko V.P.

Kremenchuk Mykhaylo Ostrogradsky National University, Ukraine

OPTIMAL PLACEMENT OF PHOTOVOLTAIC MODULES ON THE VERGE OF ENERGY EFFICIENT BUILDINGS

When using photovoltaic modules that convert solar energy into electrical energy and integrated into the building envelope [1, 2] energy efficient buildings, the problem of optimal location to maximize the amount of electricity in a defined area.

A graphical method of optimal placement of photovoltaic modules.

To determine the location of modules using planar polar model of energy production of photovoltaic modules Е_грі= f(A_гр) at ω = const (0, 15, 30, 45, 60, 75, 90 degrees) Figure 1, depending on the azimuthal orientation at various angles. In the center stands the null model seating arrangement drawings of the building (floor plan, roof plan).

Designer puts plan roof plan for the building model instrumen Е_грі= f(A_гр ) at ω = const and graphically determine the level workings of electricity at the location of the modules on the faces of the building.

Figure 1 - Determination of the production of electrical energy photovoltaic modules located on the faces of the roof and walls of the model E_грі = f(A_гр) at

ω = const

In the event that it is necessary to obtain a certain level epotr electricity problem of determining the area and location of PV modules is solved by the following algorithm.

Figure 2 - Algorithm for optimal placement of photovoltaic modules on the envelope

Sample. To study taken dvoskatnyy attic house with azimuthal orientation of the walls 45, 135, 225, 315 degrees and azimuthal orientation of the roof slope of 225 and 45 degrees, at an angle of inclination of 30 degrees Figure 3.

The study determined that the optimal plane for location heliopryymachiv is the slope of the roof (A_гр = 225⁰ at ω = 30⁰), 40,6 kWh/m² electricity revenues of PV modules during the heating period. If you need 100 kWh of electricity per month and 600 kWh per heating season heliopryymachiv area (PV modules) will represent 14,778 m².

Thus, the rational position of the receiver is on the walls of targeted A_гр = 225⁰ та 135⁰ at ω = 90⁰. Electricity revenues of photovoltaic modules constitute 35,8 kWh/m² during the heating period.

Figure 3 - Optimal location photovoltaic modules

Conclusions. A graphical method of optimal location of PV modules for building envelope. For buildings located in Kyiv, determined the location and area of photovoltaic modules for building envelope.

Literature.

1. AA.VV. Photovoltaics, Technology-Architecture-Installation. – Edition Detail.

2. CLC/TC 82. Solar Photovoltaic Energy Systems.

3. Франческо Фронтини, Томас Фризен. Фотоэлектрические модули, интегрированные в ограждающие конструкции зданий [Электронный ресурс] // Здания високих технологий. – 2013. – Режим доступа : http://zvt.abok.ru/.