Breathing walls were installed on opposite sides of a scale mock-up model of a housing structure that was situated in an artificial climate test room. We analyzed the thermal insulation capability. heat recovery effect and indoor climate for the inflow of outdoor air across the breathing wall. The rate of heat recovery reached 30% under strong winds of up to 8 mis. Even when the ventilation rate tripled due to the strong wind, the temperature difference in the vertical direction was less than 2 K.
The typical passive design suggested for residential buildings in tropical hothumid climates is a lightweight building with many openings on the north and south walls to allow continuous natural ventilation, shaded by wide overhangs. In reality most people no longer favour this design approach for several reasons: building durability, noise problems. privacy, and social status. The work presented in this paper challenges the typical design suggestions and shows other alternatives that are more suitable for this climatic region.
The SUNH and SHINE European Commission THERMIE 1996 Targeted Projects aim to demonstrate for European urban housing sector the relevance of a serie of innovative technologies (applied on 10 new 1;onstructions within SUNH and 6 retrofrtting projects within SHINE) to reduce C02 emissions through the implementation of different RUE & RES techniques. After the general presentation of SUNH and SHINE made during the PLEA conference of Lisbon, this paper aims to give a detailed presentation of the most advanced projects using slides and video.
In buildings with passive downdraught evaporative cooling (PDEC), occupants are subjected to environmental conditions which might be characterised by elevated relative humidities, increased air speeds, and time-varying internal conditions. A new physiological model which describes the human thermophysical system, and the active control exercised on it, has been produced. The model predicts skin and core temperatures, sweat rates, etc. on different parts of a seated, standing or exercising human.
The results of numerical simulation on the effects of solar chimney and underground cooling system for ventilation and heating in the new building of Faculty of International Environmental Engineering Kitakyushu University, Japan are described. It was found interesting to see the air flow rates with and without the effects of wind during the cooling period and air temperature during the heating period due to the solar chimney.
A new research project in the Building Research Institute aims at developing a quantitative tool for cross ventilation design for buildings. One of the approaches adopted in the project is the experiment in the wind tunnel, where a full-size cubical building model can be used at this stage. In this paper, mainly the first observation result for the building model without openings is shown and discussed.
Why is bioclimatic architecture not as popular as other environmentally conscious" concepts? What are the possible loopholes in current practices and how could these be taken care of? To answer such questions, this paper attempts to trace the synergetic effects of different activities within the context of Israel, and in particular that of the Israeli desert.
This paper describes part of an EC funded Joule project in which computer simulation has been used to investigate the viability of applying passive downdraught evaporative cooling (PDEC) to non-domestic buildings in hot dry climates. Using analytical techniques, CFO and thermal simulation, the performance-driven anatomy of PDEC buildings has been elucidated and engineering sizing methods have been developed. It is concluded that PDEC should formulate part of an holistic and carefully integrated solution.
The detailed urban plan of Kanjiza beside the two existing hotels at the grounds assigned for the development of the Institute of Special Medical Rehabilitation "Kanji"a Spa" comprises a plan to build a third hotel. An urbanistic solution of the complex was found, (positioning of the hotel) based on a bioclimatic study in which bioclimatic elements both in the analysis of the location and in the architectural design were taken into account. The bioclimatic study started by considering the elements of climate and the conditions of the location.
In many countries, besides the hot dry climate, the lack of energy resources is one of the brakes to the development: without air conditioning, it is not yet possible to give good conditions of working inside offices; air movements, dust, pollution are not consistent with cleanliness, controlled atmosphere and calm air. Furlhermore, sanitary spaces as hospitals and laboratories, and cultural ones as museums and libraries are interested in passive solutions to cooling in a closed atmosphere, ie: without any air movement, except controlled-filtered ventilation.
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