Solar Calculations of Modified Arch (Semi Spherical) Type Greenhouse System for Bayburt City
Greenhouses offer us suitable conditions which can
be controlled easily for the growth of the plant and they are made by
using a covering material that allows the sun light entering into the
system. Covering material can be glass, fiber glass, plastic or another
transparent element. This study investigates the solar energy usability
rates and solar energy benefitting rates of a semi-spherical (modified
arch) type greenhouse system according to different orientations and
positions which exists under climatic conditions of Bayburt. In the
concept of this study it is tried to determine the best direction and
best sizes of a semi-spherical greenhouse to get best solar benefit
from the sun. To achieve this aim a modeling study is made by using
MATLAB. However, this modeling study is run for some determined
shapes and greenhouses it can be used for different shaped
greenhouses or buildings. The basic parameters are determined as
greenhouse azimuth angle, the rate of size of long edge to short and
seasonal solar energy gaining of greenhouse. The optimum azimuth
angles of 400, 300, 250, 200, 150, 100, 50 m2 modified arch
greenhouse are 90o, 90o, 35o, 35o, 34o, 33o and 22o while their
optimum k values (ratio of length to width) are 10, 10, 10, 10, 6, 4
and 4 respectively. Positioning the buildings in order to get more
solar heat energy in winter and less in summer brings out energy and
money savings and increases the comfort.
[1] Kılıç A., Öztürk A. 1983. Günes Enerjisi, Kipas Dağıtım ve Yayıncılık
(book in Turkish).
[2] MEGEP 2012, Bahçecilik ve Sera Yapım Teknikleri, (book in Turkish)
[3] Anonymous-a 2012,www.serabirlik.com.
[4] Gupta R., Tiwari G.N., Kumar A., Gupta Y. 2012. Calculation of total
solar fraction for different orientation of greenhouse using 3D-shadow
analysis in AutoCAD Energy and Buildings 47(2012) 27–34.
[5] Pucar M.D. 2001. Enhancement of ground radiation in greenhouses by
reflection of direct unlight. Renewable Energy 26 (2002) 561–586
[6] Sethi V. P., 2009. On the Selection of Shape and Orientation of a
Greenhouse, ermal Modeling and Experimental Validation, Solar
Energy, 83, 1, 21-38.
[7] Anonymous-b, 2012 Ministry of Cultur and tourism /Turkey.
[1] Kılıç A., Öztürk A. 1983. Günes Enerjisi, Kipas Dağıtım ve Yayıncılık
(book in Turkish).
[2] MEGEP 2012, Bahçecilik ve Sera Yapım Teknikleri, (book in Turkish)
[3] Anonymous-a 2012,www.serabirlik.com.
[4] Gupta R., Tiwari G.N., Kumar A., Gupta Y. 2012. Calculation of total
solar fraction for different orientation of greenhouse using 3D-shadow
analysis in AutoCAD Energy and Buildings 47(2012) 27–34.
[5] Pucar M.D. 2001. Enhancement of ground radiation in greenhouses by
reflection of direct unlight. Renewable Energy 26 (2002) 561–586
[6] Sethi V. P., 2009. On the Selection of Shape and Orientation of a
Greenhouse, ermal Modeling and Experimental Validation, Solar
Energy, 83, 1, 21-38.
[7] Anonymous-b, 2012 Ministry of Cultur and tourism /Turkey.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:70483", author = "Uğur Çakır and Erol Sahin and Kemal Çomaklı and Aysegül Çokgez Kus", title = "Solar Calculations of Modified Arch (Semi Spherical) Type Greenhouse System for Bayburt City", abstract = "Greenhouses offer us suitable conditions which can
be controlled easily for the growth of the plant and they are made by
using a covering material that allows the sun light entering into the
system. Covering material can be glass, fiber glass, plastic or another
transparent element. This study investigates the solar energy usability
rates and solar energy benefitting rates of a semi-spherical (modified
arch) type greenhouse system according to different orientations and
positions which exists under climatic conditions of Bayburt. In the
concept of this study it is tried to determine the best direction and
best sizes of a semi-spherical greenhouse to get best solar benefit
from the sun. To achieve this aim a modeling study is made by using
MATLAB. However, this modeling study is run for some determined
shapes and greenhouses it can be used for different shaped
greenhouses or buildings. The basic parameters are determined as
greenhouse azimuth angle, the rate of size of long edge to short and
seasonal solar energy gaining of greenhouse. The optimum azimuth
angles of 400, 300, 250, 200, 150, 100, 50 m2 modified arch
greenhouse are 90o, 90o, 35o, 35o, 34o, 33o and 22o while their
optimum k values (ratio of length to width) are 10, 10, 10, 10, 6, 4
and 4 respectively. Positioning the buildings in order to get more
solar heat energy in winter and less in summer brings out energy and
money savings and increases the comfort.", keywords = "Greenhousing, solar energy, direct radiation,
renewable energy.", volume = "9", number = "6", pages = "1112-6", }