Breathing features assessment of porous wall units in relation to indoor air quality

Date

2014-09-24

Author

Yüncü, Başak
Tavukçuoğlu, Ayşe
Saltık, Emine Nevin

Metadata

Show full item record

Item Usage Stats

145
views

0
downloads

Traditional building technologies establishing highly-breathing multi-layered wall systems provide healthy indoor environment and energy efficiency in buildings due to the use of lightweight, porous, water vapour permeable and thermal resistive building materials. The breathing performance of traditional buildings and materials that contribute to the healthy indoor conditions and air quality are needed to be investigated in detail. That knowledge on breathing performance has also vital importance for the improvement of the contemporary building and materials technologies. The study was conducted on three kinds of porous masonry units: mud brick, collected from the sound parts of the traditional houses of Hamzalı Village, Kırıkkale (Turkey) and autoclaved aerated concrete (AAC) type G2 and type G4, the commonly used lightweight concrete material which are also produced in Kırıkkale. These three groups of materials were examined in terms of their air exchange properties by means of laboratory analyses. Some supportive laboratory analyses were also done on material characterization of the samples. The experimental setup is developed for the analyses of the samples, particularly for the assessment of air flow through the material by using CO2 as tracer gas. The interpretation of the results were done in order to compare the porous building materials in terms of their effects on indoor air quality. The double-zone experimental setup based on concentration decay procedure was found to be useful to better-understand the air exchange features of a material in terms of rates of concentration decrease and increase in neighbouring zones by monitoring the concentration of outgoing air. The data achieved is expected to improve the contemporary building walls by benefitting from the self-ventilation capability of building materials and to provide healthier indoor conditions for the occupants. The results are also useful to discuss the airtightness aspect of passive house technology and to minimize the mechanical ventilation needs for fresh air intake by benefitting from the self-ventilation performance of air permeable skin.

URI

https://hdl.handle.net/11511/75955
https://www.aivc.org/resource/breathing-features-assessment-porous-wall-units-relation-indoor-air-quality

Conference Name

35th AIVC Conference " Ventilation and airtightness in transforming the building stock to high performance" (24-25 September 2014)

Collections

Department of Architecture, Conference / Seminar

Suggestions

OpenMETU
Core

Thermal Performance of Buildings with Passive Solar Gains, Insulation and Energy Efficient Heating Systems Çakmaklı, Ayşem Berrin; Elias Özkan, Soofia Tahira; Pedergnana, Matthieu; Farzin Moghaddam, Maryam; Deljavan, Nastaran; Aslan, Ece(2014-12-31) This project proposal builds on previous research by the project team to demonstrate how energy efficiency in buildings can be significantly increased all year round by combining passive solar heating, appropriate building materials, and adequate insulation with efficient heating techniques such as the rocket stove. Design and production of solar units and energy efficient rocket stoves will be followed by monitoring of the thermal performance and energy consumption of selected spaces. Results will indicat...
Hybrid Ventilation System Simulation for Several Cities in Turkey Aradag, Selin; Bayer, Özgür; karataş, caner; poyraz, umit; kalkan, ozan; haciahmetoglu, firat; efe, yalcin; kahvecioglu, mustafa; goncu, alican (2011-03-01) Hybrid ventilation systems combine the superior properties of natural and mechanical ventilation systems to reduce energy consumption. In this study, hybrid ventilation simulations were performed for several cities in Turkey, which have different climate conditions. Matlab/Simulink was utilized to perform the simulations. The results of these simulations were compared with that of regular air conditioning units in terms of energy consumption. A hybrid ventilation system which shows the general behaviour of ...
Application of TS 825 Turkish thermal insulation standard using BIM Altun, Murat; Akçamete Güngör, Aslı (2019-04-17) Thermal insulation offers an efficient passive solution to provide energy savings in the buildings. In Turkey, TS825 “Thermal Insulation Requirements for Buildings” standard regulates the thermal performance of the buildings.In current practice, the energy requirement of a building is calculated manually according to geometric data andthermal properties of the elements on the building envelope. Geometric data is extracted from 2D drawings,whereas materials forming the layers of the exterior building element...
Numerical methodology for feasibility analysis of ground source heat pumps Gamage, Kumudu Janani; Uzgören, Eray; Sustainable Environment and Energy Systems (2014-8) Ground source heat pump (GSHP) systems provide an alternative energy source for residential and commercial space heating and cooling applications by utilizing the favorable temperature profile at a certain depth under the ground surface. GSHP’s aftereffects on the ground temperature profile need to be considered for estimating the economical breakeven point. The present study develops a new semi-analytical model to analyze the short term response of the ground heat exchangers by accounting the depth depende...
Proposal of a Novel Gravity-Fed, Particle-Filled Solar Receiver JOHNSON, Evan; Baker, Derek Keıth; Tarı, İlker (2016-10-14) Solar Thermal Electricity power plants utilizing solid particles as heat transfer and storage media have been proposed by several research groups, with studies citing benefits of increased thermal efficiency and lower cost. Several types of solid particle receivers have been proposed, with leading designs consisting of particles falling or suspended in air. A new solid particle receiver is proposed here, consisting of a receiver fully packed with particles flowing downward with gravity. Particle flow rate i...

Citation Formats

B. Yüncü, A. Tavukçuoğlu, and E. N. Saltık, “Breathing features assessment of porous wall units in relation to indoor air quality,” Poznań, Poland, 2014, p. 703, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/75955.