Determination of optimum insulation thickness for building external walls with different insulation materials using environmental impact assessment

Dombaycı, Ö. Altan; Yilmaz, Eylem Ulu; Guven, Sengul; Atalay, Öner; Kemal, Harun Ozturk

doi:10.2298/tsci180903010d

Cited by 6 publications

(3 citation statements)

References 29 publications

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“…Later on, Aydın and Bıyıklıoğlu [14] presented that the energy savings achieved by optimum insulation thicknesses determined by life cycle cost analysis (LCCA) varies between 12.9% and 21.5% depending on the degree-day regions. In another study on insulation thickness, it was found that optimum thickness glass wool and rockwool insulation materials reduce fuel consumption by approximately 70% and 40% [15]. According to Ozalp et al [16], the effect of wall building material on heat losses is much higher than insulation material.…”

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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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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“…Kullanılan nicel hesaplamalar sayesinde binalar bazında yalıtım kalınlığı bakımından en uygun değerin bulunması ve en tasarruflu yakıt tipinin seçilmesi işlemleri gerçekleştirilebilmektedir. Binalardaki ısı kayıplarının genel olarak pencere açıklıklarından, tavan aralıklarından ve hava akımları etkisiyle oluştuğu birçok araştırmacı tarafından belirtilmiştir [20,21,22]. Bu çalışmada yapılan hesaplamalar sadece dış duvarlardan ısı kaybı olduğu kabul edilerek gerçekleştirilmiştir.…”

Section: Materyal Ve Metod (Materials Andunclassified

Ağrı İlinde Farklı Yakıtlar ve Duvar Bileşenleri İçin Optimum Yalıtım Kalınlıkları Kullanılarak Enerji Maliyetlerinin Analizi

Ünvar

2023

Politeknik Dergisi

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Isı yalıtımı konusu global ölçüde önem arz eden ve üzerinde sürekli çalışılan bir alanı oluşturmaktadır. Bu bağlamda, Ağrı ili için dört farklı duvar modeli (taş, tuğla, briket ve betonarme) ve beş farklı yakıt (kömür, doğalgaz, Likit Propan Gaz (LPG), fuel oil ve elektrik) çeşidi seçilerek optimum yalıtım kalınlığı, yalıtım maliyeti, yakıt ve toplam maliyetler, geri ödeme süresi ve yıllık enerji kazancı değerleri hesaplanmıştır. Çalışmada yalıtım malzemesi olarak Genleştirilmiş Polistiren (EPS) kullanılmıştır. En yüksek optimum yalıtım kalınlığı, yakıt maliyeti ve toplam maliyet değerleri elektrik enerjisinin kullanıldığı durumda betonarme duvar modeli için belirlenmiştir. Betonarme duvar modelinde elektrik enerjisi için optimum yalıtım kalınlığı 0.168 m, yakıt maliyeti 3,2392 $/m2 ve toplam maliyet 23,9826 $/m2 olarak tespit edilmiştir. Betonarme duvar modeli için optimum yalıtım kalınlığı, yakıt maliyeti ve toplam maliyet diğer duvar türlerine göre daha yüksek değerler gösterse de geri ödeme süresi bakımından en verimli duvar modeli olduğu belirlenmiştir. Kullanılan yakıt çeşitleri arasında geri ödeme süresi bakımından en verimli olanının elektrik, kömür ve doğal gazın kendilerini en geç amorti edebilen iki yakıt çeşidi olduğu belirlenmiştir.

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“…By the end of 2021, the proportion of energy-efficient buildings to the existing building area in the south of China was only 23.1%, and the heating and cooling energy consumption per unit area was equivalent to more than two times that of developed countries with similar latitudes [2] , which was mainly due to the poor thermal insulation performance of the building envelope in the high humidity environment in the south. As shown in Figure 1, the building envelope (mainly refers to the external wall) is composed of insulation materials and wall materials composite [3][4][5] . At present, the vast majority of building envelope in China adopts external wall exterior insulation or external wall interior insulation technology.…”

Section: Introductionmentioning

confidence: 99%

Research Status and Development Trend of Sintered Solid Waste-based Wall Insulation Materials

Zhao

Yao

Nan

et al. 2023

J. Phys.: Conf. Ser.

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Improving the thermal performance of the building envelope and reducing the energy consumption of heat transfer are particularly important for building energy conservation. Wall insulation materials can be divided into sintered and non-sintered two types. Sintered wall insulation materials have unique advantages in the development of self-insulating wall because of their high strength, good insulation ability and wide range of raw materials. In this paper, the research status of shale, fly ash, coal gangue and phosphogypsum as raw materials to develop wall insulation materials are introduced, feasible research direction in view of the significantly reduced thermal performance and durability of sintered self-insulating wall materials in high humidity environment and high sintering temperature are put forward. The research on the formation and control mechanism of high closed porosity structure and the action mechanism of multiple fluxes can provide theoretical support for the design and optimization of self-insulation wall materials with light, high strength, low sintering temperature and meeting the requirements of building energy conservation.

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Determination of optimum insulation thickness for building external walls with different insulation materials using environmental impact assessment

Cited by 6 publications

References 29 publications

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

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

Ağrı İlinde Farklı Yakıtlar ve Duvar Bileşenleri İçin Optimum Yalıtım Kalınlıkları Kullanılarak Enerji Maliyetlerinin Analizi

Research Status and Development Trend of Sintered Solid Waste-based Wall Insulation Materials

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