Thermal performance of walls with passive cooling techniques using traditional materials available in the Mexican market

The passive cooling technique is a strategy to improve building thermal performance which is cost-effective, eco-friendly and best suited for the local climate. The building material is one of the elements in passive cooling techniques. The research aims to investigate the influence of building materials on building thermal performance by field measurements on test houses. Hobo data loggers were used to collect indoor air temperature and relative humidity data. FLIR Infrared Camera was used to collect surface temperature data. The National Standard for Ventilation and Air Conditioning system (SNI 03-6572-2001) used as a reference for thermal performance value. The scope of the research is investigating the influence of the structure and wall materials on building thermal performance. The structure materials for the experiment were steel material and concrete material. The wall materials for this experiment were clay brick, light concrete brick (AAC), GRC-Rockwool panel and GRC-Styrofoam Panel. This research showed that steel structure influences the increasing indoor building air temperature. Clay brick material with higher thermal conductivity values has longer duration above the warm comfort zone rather than other wall materials in this experiment.

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Thermal performance of a discontinuous finned heatsink profile for PV passive cooling

Applied Thermal Engineering ◽

10.1016/j.applthermaleng.2020.116238 ◽

2020 ◽

pp. 116238

Author(s):

J.G. Hernandez-Perez ◽

J.G. Carrillo ◽

A. Bassam ◽

M. Flota-Banuelos ◽

L.D. Patino-Lopez

Keyword(s):

Thermal Performance ◽

Passive Cooling

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Thermal Performance of Konrad Frey’s Prefabricated Low-Cost Loft House - A Case Study of a Pioneering Instance of Sustainable Architecture

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.887.204 ◽

2019 ◽

Vol 887 ◽

pp. 204-211 ◽

Cited By ~ 2

Author(s):

Matthias Schuss ◽

Mahnameh Taheri ◽

Ulrich Pont ◽

Ardeshir Mahdavi

Keyword(s):

Thermal Performance ◽

Research Effort ◽

Low Cost ◽

Energy Performance ◽

Passive Cooling ◽

Night Time ◽

Sustainable Architecture ◽

Ongoing Research ◽

Building Components

This contribution presents an ongoing research effort addressing the performance assessment of a number of buildings planned by the Austrian architect Konrad Frey, who is considered to be one of the pioneers of sustainable architecture in Austria. A number of his buildings, planned in the 1970s, consequently integrated principles of modern solar houses. Relevant key projects are subject of an on-going research project. Thereby numeric building simulation was deployed to assess the energy performance of the buildings. In this contribution, we present the intermediate results of a study that focused on one of his latest buildings, namely the prefabricated low-cost loft house. As opposed to architect’s rather complex early designs the loft house concept targeted inexpensive solutions and used simple and commonly available building components and systems. As part of the overall project, the thermal performance of this building was evaluated in terms of the effectiveness of passive cooling via various ventilation schemes (including night time ventilation).

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THERMAL PERFORMANCE OF µPCM/MWCNT COMPOSITES AT DIFFERENT AMBIENT TEMPERATURES

Jurnal Teknologi ◽

10.11113/jt.v77.6615 ◽

2015 ◽

Vol 77 (21) ◽

Author(s):

Adli Zil Ikram Abdullah ◽

Mohd Fadzli Bin Abdollah ◽

Hilmi Amiruddin ◽

Ahmad Kamal Mat Yamin ◽

Norrefendy Tamaldin

Keyword(s):

Thermal Management ◽

Thermal Performance ◽

Passive Cooling ◽

Powder Metallurgy Technique ◽

Mixed Powder ◽

Ambient Temperatures ◽

Microencapsulated Phase Change Material ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes ◽

Change Material

The aim of this study is to investigate the effect of carbon-based materials on the thermal performance of microencapsulated phase-change material (µPCM) for passive cooling applications. The sample was prepared by mixing 5 wt. % of multi-walled carbon nanotubes (MWCNT) into µPCM using a powder metallurgy technique. The mixed powder was then compacted into a disc, having a diameter of 30 mm and a height of 5 mm, using a hot compaction technique. The samples were tested according to the modified ASTM standard. The experimental results demonstrated that the addition of MWCNT into µPCM enabled it to effectively absorb the heat emitted by the aluminium casing compared to pure µPCM. The model results indicated that the temperature of the aluminium could be maintained well at each ambient temperature by using the µPCM/MWCNT composite, thus showing that µPCM/MWCNT can potentially be used for passive thermal management in the future.

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Evaluating Thermal Performance and Energy Conservation Potential of Hybrid Earth Air Tunnel Heat Exchanger in Hot and Dry Climate—In Situ Measurement

Journal of Thermal Science and Engineering Applications ◽

10.1115/1.4023435 ◽

2013 ◽

Vol 5 (3) ◽

Cited By ~ 9

Author(s):

Rohit Misra ◽

Vikas Bansal ◽

Ghanshyam Das Agarwal ◽

Jyotirmay Mathur ◽

Tarun Aseri

Keyword(s):

Energy Consumption ◽

Heat Exchanger ◽

Energy Conservation ◽

Thermal Performance ◽

Cooling System ◽

Ambient Air ◽

Passive Cooling ◽

Air Conditioner ◽

Cooling Systems ◽

Active Cooling

Earth air tunnel heat exchanger is a passive cooling device with advantageous feature to reduce energy consumption in buildings. Curtailing the electricity consumption of conventional vapor compression system based air-conditioner is a major concern especially in area with hot and dry weather conditions. The performance of conventional air-conditioners can substantially be enhanced by coupling these active cooling systems with passive cooling systems. In the present research, the thermal performance and energy conservation potential of hybrid cooling system has been investigated experimentally. An attempt has been made to enhance the thermal performance of active cooling system by coupling it with earth air tunnel heat exchanger (EATHE) in two different hybrid modes. The air which comes out of EATHE is relatively cooler than the ambient air and therefore can be used either for cooling the condenser tubes of a conventional window type air-conditioner or supplying it directly to the room being conditioned. The energy consumption of conventional 1.5TR window type air conditioner is found to be reduced by 16.11% when cold air from EATHE is completely used for condenser cooling.

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