The potential for reactions among indoor pollutants to generate reactive and highly irritatingproducts is a reason to maintain adequate ventilation rates and clean ventilation filters.Terpenoid (from recirculated air, a scenario common in the tropics) captured by ventilationfilters can react relatively quickly with ozone which may lead to downstream air supply thatcontain oxidized terpenoid and this may be perceived to be less acceptable than outdoor air.The chemical composition (water solubility and chemical reactivity) of these particlesstrongly governs their toxicity.
The impact of common building materials interaction on perceived air quality related to airchange level was studied. The methods of chemical analysis (TVOC) and subjective sensoryassessment was used. The measurements were conducted in test chamber under standardizedconditions (231C, 505%) and different ventilation rates. The positive impact of sorptionphenomenon on perceived air quality and user's wellbeing was found for most of the testedcombinations. The more significant sorption effect was found for materials with largerspecific surface.
Gaseous emission - CO2, NO, and NOx of gas stove has significant and harmful effect on indoorair quality (IAQ) in residential kitchens. To avoid increasing health risk it is essential touse mechanical ventilation such as kitchen hood. However, according former laboratory studies,extract air flow generated by typical hoods is not adequate to achieve required IAQ.
Phthalates are ubiquitous contaminants in indoor environments, and are reported to causeadverse health effects. Due to their semi-volatile nature, phthalate samples require a multisteppreparation before quantification with GC-MS. Many different sampling media,extraction procedures, and solvents are utilized in phthalate analytics, while comparisons andjustifications for each choice are lacking.
Sitsang belongs to cold Region in china and heating energy consumption in winter is very large. There is fairly scarce petrochemical energy, and that the oxygen content in plateau section is lower, which makes combustion become insufficient, so the cost of conventional energy is considerably high. However, compared with other regions in china, the best advantage of Sitsang is that it possesses abundant solar energy resources.
The application of a ventilation system in a new building is a multidimensional complex problem that involves both quantifiable and non-quantifiable data e.g. energy consumption, indoor environment, building integration and architectural expression. This paper presents a structured method for evaluating the performance of a ventilation system in the design process by treating quantifiable and non-quantifiable datasets together.
Integral design shows high promises to reduce failure costs and to improve design quality. Based on this assumption, the Royal Institute of Dutch Architects (BNA), the Dutch Society for Building Services (TVVL) and Delft University of Technology (TUD) started a research project on Integral Design in year 2000, which resulted in a series of workshops for architects and HVAC consultants.
Concepts of sustainability in buildings and cities are many and there are various programmes for healthy cities and researches on indoor air quality. Wellbeing indoors depend on external factors also. The fourth skin or microbiosphere above the building envelope has not been studied well. Sustainable building or green building is being designed but such building functions well only in sustainable cities and often indoor air quality is creating sick building syndrome.
In recent years, there has been an increasing number of publications on the thermal and daylight performance of double skin facades in moderate climates. However, there is a scarcity of research on how different configurations of the cavity and its height can lead to an impact on internal cooling/ heating loads and the availability of daylight indoors in hot arid climates.
To realize a desirable building environment by saving energy and low global emission, the author has been investigating passive systems in buildings where the environment is controlled biomimetically and autonomously by simulating the physiological functions of human and other organisms. An environmental harmonized Biomimetic Building, which simulates the environment physiology mechanism of a human body and human wisdom for environment symbiosis, has been developed.
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