Insulation of Ceiling with Different Insulation Materials and its Effect on Energy Saving
Ö. Altan DOMBAYCI,
Harun Kemal ÖZTÜRK
Issue:
Volume 5, Issue 6-1, December 2016
Pages:
1-5
Received:
9 June 2016
Accepted:
21 June 2016
Published:
9 July 2016
DOI:
10.11648/j.ijmsa.s.2016050601.11
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Abstract: The aim of this paper is to investigate the effect of ceiling insulation with different insulation material on energy saving. The values of the optimum insulation thickness, the payback periods (PP), and the life-cycle savings (LCS) for three different types of insulation materials (expanded polystyrene, glass wool, and rock wool) were calculated. In calculations, life cycle cost analysis (LCCA) was applied. In the analysis, the present-worth factor (PWF) technique was used for evaluating systems and annual interest and inflation rates were taken 8% and 0%, respectively. The best solution was obtained when the expanded polystyrene was used. The optimum insulation thickness, PP, and LCS were computed as 0.0901m, 1.615years, and 9.643 $/m2, respectively.
Abstract: The aim of this paper is to investigate the effect of ceiling insulation with different insulation material on energy saving. The values of the optimum insulation thickness, the payback periods (PP), and the life-cycle savings (LCS) for three different types of insulation materials (expanded polystyrene, glass wool, and rock wool) were calculated. ...
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The Prediction of Fuel and Energy Consumption by Using Degree-days Method for Residential Buildings in Denizli
Ö. Altan Dombaycı,
Harun Kemal OZTURK
Issue:
Volume 5, Issue 6-1, December 2016
Pages:
6-10
Received:
13 June 2016
Accepted:
21 June 2016
Published:
9 July 2016
DOI:
10.11648/j.ijmsa.s.2016050601.12
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Views:
Abstract: Energy analysis has an important role on optimum design of HVAC systems of buildings. Although there are different energy analysis methods, degree-days method is the easiest and the most reliable one for energy analysis of residential buildings. The main objective of this paper is to present case study for the prediction of total coal and energy consumption by using degree-days method for Denizli, Turkey. On degree-days method, hourly temperature values were used in order to obtain more definite results. This paper is considered at two steps. In the first step, depending on the number of residences, total coal and energy consumptions for uninsulated buildings were predicted for 16, 18, 20, and 22°C base temperatures in 2010, 2015, 2020 and 2023. For the second step, assuming the buildings are insulated (polystyrene for external wall and glass wool for roof), total coal and energy consumptions were predicted for the same base temperatures in the same years. The total coal consumption of insulated buildings for 22°C base temperatures in 2010 is 29% lower than the prediction of the total coal consumption of uninsulated buildings for 16°C base temperatures in the same year.
Abstract: Energy analysis has an important role on optimum design of HVAC systems of buildings. Although there are different energy analysis methods, degree-days method is the easiest and the most reliable one for energy analysis of residential buildings. The main objective of this paper is to present case study for the prediction of total coal and energy co...
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Matlab / Simulink Based Simulation of Monocrystalline Silicon Solar Cells
B. Zaidi,
I. Saouane,
M. V. Madhava Rao,
R. Li,
B. Hadjoudja,
S. Gagui,
B. Chouial,
A. Chibani
Issue:
Volume 5, Issue 6-1, December 2016
Pages:
11-15
Received:
27 June 2015
Accepted:
29 June 2015
Published:
3 September 2016
DOI:
10.11648/j.ijmsa.s.2016050601.13
Downloads:
Views:
Abstract: A solar cell is an electrical device that converts light into an electric current. Electron-hole pairs are generated inside the solar cell when light is absorbed. A two diodes equivalent model is used to describe the electronic properties of solar cells. The open-circuit voltage (Voc) is created by the series resistance and the shunt resistant of the solar cell. The theme of modeling is based on the solar radiation, temperature of system and environment to determine the effect of cell parameters like photo generated current, saturation current, series resistance, shunt resistance and ideality factor on the performance of the solar cell. In this paper we study the influence of temperature, series resistance and shunt resistance on the current-voltage (I-V) characteristics simulated in Matlab / Simulink.
Abstract: A solar cell is an electrical device that converts light into an electric current. Electron-hole pairs are generated inside the solar cell when light is absorbed. A two diodes equivalent model is used to describe the electronic properties of solar cells. The open-circuit voltage (Voc) is created by the series resistance and the shunt resistant of t...
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