The combined solar thermal and electricdesiccant cooling system is designed, fabricated,assembled and installed in the Laboratory ofBuilding Environmental Engineering of TohokuUniversity. The performance of the combinedsystem was observed and calculated. Theperformance of the whole system, thermalenergy system and desiccant cooling system ispresented in Part I of this paper.

An island hood, which is often installed in anisland kitchen, is an exhaust range hoodmounted on a ceiling independently. Thecapture efficiency of the island hood is obtainedby experiment and CFD analysis. Examinedparameters are heat input, exhaust airflow rate,mounting height of the hood, and withlwithout abaffle plate. The Experimental results indicatethat the effect of the baffle plate is achieved inthe case of large exhaust airflow rate or smallheat input. Results of CFD analysis are higherthan that of the experiment in the all cases.

Indoor air concentration is mainly affected bythe emission rate of contaminants frommaterials and the ventilation rate. Therefore, theappropriate selection of materials andventilation rate is an important factor for indoorair quality. The purpose of this study is topropose a method for the selection of materialsand to determine an appropriate ventilation ratethat can maintain the recommended guidelineconcentration with minimum cost.

In commercial ltitchen, a large amount ofheat and moisture as the effluence need to beremoved. Therefore, a large ventilation rate isneeded and energy consumption can be large incommercial kitchen. To improve kitchencondition, supply eficient oxygen and save theenergy, low radiation cooking equipments withconcentrated exhaust were developed. Thispaper summarizes laboratory investigation intothe effect of low radiation cooking equipmentwith concentrated exhaust on coimiercialltitchen condition.

TII this study the influence of temperature of thesupplied air of a personalized ventilation systemon energy need has been investigated by meansof simulations with IDA-ICE software. GenOptsoftware was used to determine the optimalsupply air temperature. The simulated officeroom was located in a cold climate. The resultsreveal that the temperature of air supplied bypersonalized ventilation and its control strategyhave a marked influence on energyconsumption.

A numerical simulation is used to evaluate theefficiency of a multi-layer rack composed ofphase change material (PCM) sheets each. Thebuilding, object of this study, is actually underconstruction in Lyon and will be monitored. 10of these racks are installed in the crawl space ofthe building. A fan is forcing fresh air to passthrough the crawl space and then through themulti-layer racks. Then, this air is used in thebuilding ventilation system, depending on itstemperature. The software TRNSYS is used tosimulate the behaviour of the building equippedwith racks.

Environmental degradation, depletingconventional energy resources, and explodingworld population are indeed serious issues.Development of clean energy resources togetherwith clean technologies for human comfort is awonderful hunian creativity. This paper presentsa developed system of combined solar thermaland electric desiccant cooling system. The totalperformance of the whole system as presentedshows the thermal energy supplied to the system,the thermal energy transferred to the desiccantcooling system, and the performance of thedesiccant cooling system.

Maintaining a good indoor air quality (forpeople and building conservation) is obviously thefirst aim of any ventilation system; neverthelessthe main side effect - which is also the mostvisible one - is to spend energy, for heating firstand for transport.In these times of expensive energy, thetemptation is high to lower the ventilation flows,with few consideration on indoor air quality.Demand controlled ventilation is still oftenaccused of this behaviour and argued against asbeing "just a flow reduction".

For the patient, the sickroom is a place for themedical treatment and is also the living spacewhere they spend almost all time in a day.Therefore, high indoor air quality and thermalcomfort are needed in the sickroom.We propose to use the displacement ventilationas a means of obtaining high indoor air quality,in combination with radiation panel forindividual control of thermal environment. Thisstudy is intended to examine the validity of thissystem. This paper describes the experimentaland calculated results on the influence ofradiation panel on contaminant concentrationprofile.

Interzonal air movements are important tocharacterize overall ventilation perfosmance ofcomplicated multi-zone indoor spaces. Tracergas techniques are widely used to measureventilation rates or ventilation effectiveness aswell as air movements between indoor spacesusing either a single or multiple tracer gases.This paper compares the tracer gas methods interns of procedures and uncertainties inmeasuring air exchange rates between rooms.Experiments have been conducted in a simpletwo-room model with known airflow rates.