LoginExperimental study was conducted onimproving air-conditioners' energy efficiencyusing hydroponic roof plants. The air-coolingeffect caused by the solar-shading andtranspiration of hydroponic-cultivated sweatpotato was measured.
29th AIVC Conference - Kyoto,Japan - 14-16 October 2008
The 29th AIVC Conference, Advanced building ventilation and environmental technology for addressing climate change issues, was held in Kyoto, Japan, 14-16 October 2008.
Contains 165 papers
Volume content
The author had participated IEAIECBCS Annexprojects since 1987, starting from Annex 16 forBEMS, ending at Annex 40 for Commissioning.I used to recognize how this line of continualset-up of subjects to optimize HVAC design andmaintenance through sy
Condensation and mold growth risks on interior surface of a corner wall in anapartment | 2008 | English
The paper presents the results of mold growthrislzs in a corner wall near an entrance door inan apartment house. The corner wall isrecognized as a trouble spot for condensationand mold risk in apartment buildings.
Buildings are a man-made environment built innature.
Thermal and Air Quality Environment in Elementary SchoolClassrooms Equipped with Air-Conditioning System for Cooling | 2008 | English
An investigation was performed in a middle-corridor-type elementary school in Tolcyo, Japan, equipped with an air-conditioning system for cooling.Temperatures and C02 concentrations weremeasured in classrooms, corridors and outdoors.Visual inspect
Experimental Study on Thermal Cognition Developed through DailyExperience in the Built Environment during Summer Seasons | 2008 | English
This paper discusses whether there is thermalcognition acquired through daily experience inthe built environment during summer seasons.For this purpose, we analysed the results of asubjective experiment to reveal the relationshipbetween subjective
Experimental Investigations of the Turbulent Mixing Process and theReynolds-Stress Anisotropy Tensor in Ventilated Rooms | 2008 | English
In the past various experimental investigationsabout room airflows were published.
According to the definition, passive houses inEurope meet a target energy demand for heatingof less than 15 kWh per square meter and peryear.
Conventional air-conditioning control in a roomassumes perfect diffusion of temperature in theroom, and relies on a temperature sensorinstalled on the wall or ceiling of the room, or inthe return duct.
Comparison of imagined and real behaviors in relation to active coolingmethods under Japanese summer conditions | 2008 | English
Recently post-occupancy evaluation is oftenused to know the actual performance of socalledenergy saving building components andto compare with simulated performance. Inreality, the occupants choice how to achievecomfortable conditions, e.g.
Evaluation of the solar-assisted desiccant air-conditioning systems using periodically reactivated desiccant beds under hot and humid CK climates | 2008 | English
In hot and humid regions, cooling anddehumidification are important issues of inindoor environment.
Numerous studies and everyday experiencesprove the fact that even new buildings do notperform as expected.
Double-skin facade (DSF) is an architectural/ engineering solution developed from the need to increase comfort in buildings with full glazed facades.
Subjective experiments on the suitable illuminance in a living room daylitby Mirror Duct System | 2008 | English
The objective of this study is to identify theeffects of mirror duct system on energy savingsfor luminaries.
Today lots of research and application of solarheating are focused on continuously occupiedbuildings, such as residential buildings.
Impact of the Change of Gross Building-to-Land Ratio upon the ResidentialVentilation Usage and Energy Consumption for Air-Conditioning andLighting | 2008 | English
Tn this paper, using thc "SCTENCE vent"method for estimating the energy consumptionfor air conditioning in rcsidcntial buildings, wcevaluated the wind environment and theradiative conditions with respect to the targetbuildings in the case where th
There are many technologies aimed at reducing energy demand of ventilation systems, but thefocus in these designs has remained on the airheating system and exhaust losses.
Activated carbon filters have been used forpurification of air and water in industrialapplications.
Considering density of housing in residentialarea of large cities in Japan, it is very difficultto secure sufficient daylight and lead daylightto whole space in the house. High side lightingis one of solutions for such situation.
Thermal mass activation (TMA) can assure, incertain cases, thermal comfort conditionswithout the need of air conditioning systems.Even if other cooling systems have to be used,night ventilation significantly reduces theduration of the working time