Optimum insulation thickness of external walls for energy saving

Çomaklı, Kemal; Yüksel, Bedri

doi:10.1016/s1359-4311(02)00209-0

Cited by 248 publications

(138 citation statements)

References 3 publications

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“…Again, no difference was made between older and newer facilities. In more recent studies [17], the mean value decreases to about 125 kWh/(m 2 a), which is due to the higher share of modern buildings in the sample. The end-energy use of electricity was between 20 and 30 kWh/(m 2 a) and is only small, compared to the end-energy for heat.…”

Section: Literature Studymentioning

confidence: 76%

“…When short calculation times are assumed, the optimum lies between 6 and 9 cm [17], [18], [19]. When longer time periods are considered, the optimum is between 10 and 20 cm.…”

Section: Literature Studymentioning

confidence: 99%

“…Unfortunately, other construction parts have longer lifetimes than plaster, so not every retrofit can be coupled with other actions. Nonetheless, the insulation of the upper floor ceiling and basement ceiling in most cases are economically worthwhile, even if full costs are considered [17], [20] Other possible actions are the renewal of the heating system, e.g. replacement of old boilers with condensing boilers, or the replacement of old single-glazed windows with multiple-glazed windows which frames are also more airtight.…”

Section: Literature Studymentioning

confidence: 99%

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Energy consumption of non-retrofitted institutional building stock in Luxembourg and the potential for a cost-efficient retrofit

Hoos

Merzkirch

Maas

et al. 2016

Energy and Buildings

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The public building stock of a country, consisting of schools, offices, accommodation facilities, single-and multi-family homes, accounts for a high consumption of electrical and heat energy. Therefore, this stock is often object to actions with the goal of lowering this energy usage by increasing the efficiency of those buildings. This is usually done by applying measures to the building envelope like insulation and/or new windows and by using more efficient HVAC technology. But often, in the initial state, the current energy consumption of such a stock is unknown or only known for single buildings. In this case, the calculation of energy and costs savings is either impossible or not exact. This paper shows a way to quantify and categorize the end-energy for heat use of the public building stock in Luxembourg, which consists of 1,744 Mio. m 2 gross area, while the information about this stock was incomplete in the first place.This analysis was done in cooperation with the national administration of public buildings.A certain amount of sample buildings was analyzed and then separated into three groups of low, normal and high end-energy use. The boundaries of these groups were chosen according to literature values, derived from European retrofit projects, which also served as the source for possible costs of renovations. This data was extrapolated to the whole stock. This information serves as a basis for future decisions concerning the retrofit of those buildings and makes a

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Section: Literature Studymentioning

confidence: 76%

“…When short calculation times are assumed, the optimum lies between 6 and 9 cm [17], [18], [19]. When longer time periods are considered, the optimum is between 10 and 20 cm.…”

Section: Literature Studymentioning

confidence: 99%

Section: Literature Studymentioning

confidence: 99%

See 1 more Smart Citation

Energy consumption of non-retrofitted institutional building stock in Luxembourg and the potential for a cost-efficient retrofit

Hoos

Merzkirch

Maas

et al. 2016

Energy and Buildings

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“…Generally, the other previous studies performed on TS 825 were based on determination of optimum insulation thicknesses for different degree day regions. [12][13][14][15][16][17] Aksoy and Bektaş Ekici [5] investigated the appropriateness of climatic data given in TS 825 for different DDRs with different building samples.…”

Section: Due To Its Geographical Position Between 36mentioning

confidence: 99%

Evaluation of TS 825 Thermal Insulation Requirements in Buildings in Terms of Solar Radiation

Ekici¹

2015

Megaron

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Betül BEKTAŞ EKİCİTS 825 Thermal Insulation Requirements in Buildings, the obligatory standard, is still in effect, and is used to calculate the heating energy requirements of buildings in Turkey. The total solar heat gain through windows is calculated using the solar radiation table given in Appendix-C of TS 825. Although Turkey is divided into four different degree day regions according to this standard, Appendix-C offers the same solar radiation data for all regions. This study aimed to investigate the appropriateness of the Appendix-C table for the different degree day regions. The hourly solar radiation on the vertical surfaces of a building envelope was calculated for 16 selected cities. Long-term sunshine duration data for each location were obtained from the Turkish State Meteorological Service. It is demonstrated that the solar radiation table given in Appendix-C of TS 825 is not appropriate for the four degree day regions. The calculated solar radiation values of the cities are considerably different from the table values, with the ratios varying between 3.03% and 69.15% for horizontal surfaces, 0.171% and 53.29% for south, 0.25% and 22.15% for north and 0.60% and 40.42% for east and west oriented surfaces. MEGARON 2015;10(1):14-24 MAKALE / ARTICLE

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“…Satman and Yalcinkaya [5], Sisman et al [6], Ucar and Balo [7] and Comakli and Yuksel [8] forecasted energy consumption of residential buildings, investigated Optimum Insulation Thickness (OIT) and estimated the net energy cost savings for different degree-day regions of Turkey. Shariah et al [9] suggested that with both wall and ceiling insulated, the energy requirements could be reduced by more than 40% in Jordan.…”

Section: Introductionmentioning

confidence: 99%

Energy Saving Potential of Natural Insulation Materials in the Built Environment

2016

Arimpie - 2016

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Abstract-Reduction of air conditioning loads in the built environment is one of the most important challenges in tropical countries like India, where energy shortages are common particularly during summers. Enhancing the thermal resistance of building envelope through insulation is one of the techniques commonly used. Most of the insulating materials available in the market are synthetic polymeric compounds made up of petrochemicals, e.g. Expanded polystyrene, Extruded polystyrene, Glass wool etc . Sustainability concept in the building sector has gradually led to the production of sustainable insulation products made of natural materials. This paper presents energy conservation and CO 2 emission reduction potential of some building insulation products made of unconventional and natural materials, e.g. Bagasse, Sunflower leaves, Pineapple leaves, Reeds, Cardboard etc. For this purpose, energy simulations have been performed for different natural insulation materials of various thicknesses, which are proposed for a commercial bank building located at MNNIT, Allahabad, UP, India. The annual energy reduction ranges between 10% to 20 % and CO 2 reduction varies from 1.2 to 2.4 tonsof CO 2 per year. As most of the sustainable insulation products are still at an early stage of production, their investment costs are not commercially available except for cardboard (Gutex) insulation. The simple payback period for Gutex insulation was estimated to be 5 years for 20 mm thickness. The use of natural materials leads to several environmental benefits. The use of agro-residues and their by products can reduce the use of polymeric insulation used in air conditioned buildings. This would help in reducing electricity demand particularly during summers, along with reduction in CO 2 emissions and associated economic benefits.

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Optimum insulation thickness of external walls for energy saving

Cited by 248 publications

References 3 publications

Energy consumption of non-retrofitted institutional building stock in Luxembourg and the potential for a cost-efficient retrofit

Energy consumption of non-retrofitted institutional building stock in Luxembourg and the potential for a cost-efficient retrofit

Evaluation of TS 825 Thermal Insulation Requirements in Buildings in Terms of Solar Radiation

Energy Saving Potential of Natural Insulation Materials in the Built Environment

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