Determination of optimum insulation thickness using the entransy based thermoeconomic and environmental analysis: a case study for Turkey

Gülten, Ayça

doi:10.1080/15567036.2019.1649330

Cited by 10 publications

(4 citation statements)

References 31 publications

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“…Thermal insulation provided to the exterior walls, roofs, and floors reduces heat gain and improves the thermal performance of the built environment. Thermal insulation used on the exterior roofs, walls, and floors reduces heat gain and improves the thermal performance of the built environment [25,26]. Thermoeconomic research was carried out to maximize the insulation thickness of exterior walls in various climates of Turkey [27].…”

Section: Introductionmentioning

confidence: 99%

Energy Savings and Carbon Emission Mitigation Prospective of Building’s Glazing Variety, Window-to-Wall Ratio and Wall Thickness

et al. 2021

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Strategic selection of glazing, its window-to-wall ratio, and wall thickness of building reduce the energy consumption in the built environment. This paper presents the experimental results of solar optical properties of five glasses: clear, tinted bronze, tinted green, bronze reflective, and polymer dispersed liquid crystal glasses. Laterite room models were modeled with four different thicknesses and four different glasses using Design Builder, and thermal simulation tests were carried out using Energy Plus. The energy savings and carbon emission mitigation prospective of a building’s glazing variety, window-to-wall ratio (WWR), and wall thickness were investigated. The results revealed that among the five window glasses studied, the polymer dispersed liquid crystal glazing window (PDLCGW) was found to be the most energy-efficient for low heat gain in laterite rooms. The laterite room with 0.23 m wall thickness and 40% PDLCGW WWR reduced 18.9% heat gain in comparison with the laterite room with 0.23 m wall thickness and 40% clear glass WWR. The laterite room of 0.23 m wall thickness with PDLCGW glazing of 40% WWR enhanced cooling cost savings up to USD 31.9 compared to the laterite room of 0.08 m wall thickness with 40% PDLCGW. The laterite room of 0.23 m wall thickness with PDLCGW glazing of 40% WWR also showed improved carbon mitigation of 516 kg of CO2/year compared to the 0.23 m wall thickness laterite room of 40% WWR with clear glass glazing. The results also showed that the laterite room with 0.23 m wall thickness and 100% clear glass WWR increased heat gain by 28.2% in comparison with the laterite room with 0.23 m wall thickness and 20% clear glass WWR. The results of this article are essential for the strategic design of buildings for energy saving and emission reduction.

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Section: Introductionmentioning

confidence: 99%

Energy Savings and Carbon Emission Mitigation Prospective of Building’s Glazing Variety, Window-to-Wall Ratio and Wall Thickness

et al. 2021

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“…Several studies are reported in the literature for building envelope materials and parameters to reduce operation energy. Among these studies, changing the different parameters of the building envelope in a reference building and finding the scenario with the most energy efficient combinations are a topic of great importance [7][8][9][10]. For example, Mirrahimi et al [11] showed that building envelope parameters (window/wall ratio, wall type, building orientation, glazing, etc.)…”

Section: Introductionmentioning

confidence: 99%

Energy and economic performance analysis of different ventilated wall construction types in residential buildings

Bahadır¹,

Thomollari²,

Kalfa³

et al. 2020

JCEMI

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Due to the increasing energy consumption in the world, energy efficiency has become the most important issue in sectors with high energy use such as industry, transportation, agriculture and construction. In many countries, the energy consumed in housing composes a large part of the total energy consumption. In Turkey, about 20% of total energy consumption is utilized in residential buildings and about 60% of this energy is used for heating. The energy consumed in residence buildings can be reduced by measures to decrease the heating and cooling loads. For this purpose, the main objective of this study is to investigate the effect of ventilated walls on the energy and cost performance of buildings. The energy and cost efficiency of 27 different ventilation walls with 3 different insulation thicknesses, 3 different ventilation gap thicknesses and 3 different cladding materials were compared with the reference wall. For a family of 3, a flat with a 2 + 1 plan was chosen for investigation and the flat is located in Trabzon, which represents the moderate-humid climate region. Flat plans with different ventilated walls were modeled using DesignBuilder energy simulation software and monthly/annual heating and cooling loads were obtained. Then, life cycle cost analysis has been conducted to investigate the cost effective ventilated wall types. Although the high initial investment costs of the investigated ventilated walls increase the life cycle costs, it has been observed that they provide energy savings in buildings.

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“… Dıştan yalıtımlı bir duvar incelenmektedir.  Daha önceki entransy bazlı çevresel etki ve YDM analizlerine göre, cam yünü taş yününe göre daha çevre dostu ve ekonomiktir [3,27]. Bu nedenle yalıtım malzemesi olarak cam yünü seçilmiştir.…”

Section: Kabuller (Assumptions)unclassified

“…Sonuç olarak bu çalışmada çevresel ve ekonomik OYK'ları, sırasıyla: camyünü için 0,15m ve 0,012m ve taşyünü 0,064m ve 0,007m olarak belirlenmiştir. Bu araştırmayı takiben Gülten [27], yalıtım malzemelerinin OYK üzerindeki çevresel etkilerini incelemek için entransy tabanlı çevresel ve termoekonomik analizi kullanmıştır. Yakıt olarak doğalgaz kullanımında yalıtım malzemesi olarak seçilen taşyünü ve camyünü dört ayrı şehir ve iki farklı duvar türü için incelenmiştir.…”

Section: Giriş (Introduction)unclassified

Optimum yalıtım kalınlığının entransy tabanlı çevre ve yaşam döngüsü maliyeti analizi ile belirlenmesi: Yakıt türünün etkisi

AKBULUT

2023

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

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Bu çalışmada, optimum yalıtım kalınlığının (OYK) entransy tabanlı çevre ve yaşam döngüsü maliyeti (YDM) analizi ile belirlenmesinde yakıt türünün etkisi araştırılmıştır. Analizler İstanbul için ısıtma dönemindeki enerji gereksinimi dikkate alınarak yapılmıştır. İncelenen yakıt türü olarak hidrojen, metanol, etanol, doğalgaz, dizel yakıt ve linyit, yalıtım malzemesi olarak ise camyünü seçilmiştir. Çevresel ve ekonomik OYK, toplam çevresel etki ve net çevresel kazanç, entransy kaybı ve net entransy tasarrufu, yakıt tüketimi, CO2 emisyonları, yakıt maliyetleri, yalıtım maliyetleri, toplam maliyetler ve entransy maliyetlerinde net tasarruflar değerlendirilmiştir. Camyünü için çevresel ve ekonomik OYK’ları sırasıyla: i) hidrojen kullanıldığında 0,297 m ve 0,0855m; ii) methanol kullanıldığında 0,211 m ve 0,0044m; iii) etanol kullanıldığında 0,226 m ve 0,0419m; iv) doğalgaz kullanıldığında 0,126 m ve 0,0026 m; v) dizel yakıt kullanıldığında 0,185 m ve 0.0287 m; vi) linyit kullanıldığında 2,022 m ve 0,0230 m olarak tespit edilmiştir. Bu optimum kalınlıklarda toplam çevresel etki, net çevresel kazanç, entransy kaybı ve net entransy tasarrufu değerleri, sırasıyla: i) hidrojen kullanıldığında 57,59 mPts/m2 , 521,82 mPts/m2 , 5,43 $/m2 ve 13,32 $/m2; ii) methanol kullanıldığında 43,35 mPts/m2, 289,89 mPts/m2, 0,72 $/m2 ve 0,035 $/m2; iii) ethanol kullanıldığında 44,15 mPts/m2, 301,71 mPts/m2, 2,89 $/m2 ve 3,19 $/m2; iv) doğalgaz kullanıldığında 25,34 mPts/m2 , 94,24 mPts/m2, 0,61 $/m2 ve 0.012 $/m2; v) dizel yakıt kullanıldığında 36,5 mPts/m2, 203,15 mPts/m2, 2,13 $/m2 ve 1,5 $/m2; vi) linyit kullanıldığında 383,73 mPts/m2, 24237,45 mPts/m2 ,1,80 $/m2 ve 0,96 $/m2 olarak hesaplanmıştır. Gelecekteki bir pazarlama politikası için hem daha ucuz hem de daha az çevresel etkiye sahip yakıtlara erişim sağlama çabalarını teşvik etmek stratejik olarak çok önemlidir. Bu bağlamda hidrojen, metanol ve doğalgaz öne çıkmaktadır. Hidrojenin karbon içermeyen saf bir yakıt olmasına rağmen çevresel etki değeri ve maliyeti kullanılan hidrojen üretim yöntemleri nedeniyle oldukça yüksektir. Bu nedenle yeşil hidrojen üretiminin artırılması ve maliyetinin düşürülmesi gerekmektedir.

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Determination of optimum insulation thickness using the entransy based thermoeconomic and environmental analysis: a case study for Turkey

Cited by 10 publications

References 31 publications

Energy Savings and Carbon Emission Mitigation Prospective of Building’s Glazing Variety, Window-to-Wall Ratio and Wall Thickness

Energy Savings and Carbon Emission Mitigation Prospective of Building’s Glazing Variety, Window-to-Wall Ratio and Wall Thickness

Energy and economic performance analysis of different ventilated wall construction types in residential buildings

Optimum yalıtım kalınlığının entransy tabanlı çevre ve yaşam döngüsü maliyeti analizi ile belirlenmesi: Yakıt türünün etkisi

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