Active chilled beams are an air conditioning solution for ventilation, cooling and heating. Bycareful design the solution can result in a comfortable indoor environment with a high degreeof individual control at a low operational cost. During the design process draught risks shouldbe analyzed since many factors can influence the resulting airflow pattern from chilled beams.The paper focuses on the factors affecting the thermal comfort in a room ventilated by chilledbeams. Both experimental results as well as theoretical considerations are included in theanalysis.

The importance of heat load and airflow pattern control for occupants’ thermal comfort is studied in a full-scale test room ventilated with chilled beams. The room was furnished with two desks, computers and table lights. Solar irradiation on window and p

Radiant panels achieved a growing success in the last years as a cooling system, because theyguarantee improvement in comfort and energy saving.The aim of the present work is to propose a method to evaluate the thermal behavior ofradiant panels used for summer cooling. Experimental observations lead to notice that part ofthe radiant load hitting panels surface is directly removed by the refrigerating fluid (DirectWater Load), never becoming a room load.

The purpose of this paper is to investigate the thermal performances and the effect on the thermal comfort of a cooling ceiling installed in an experimental test room called Minibat. With a 9.6m2 surface and controlling the temperatures on all the exterior walls of the cell, Minibat was the perfect environment for this experimental study. The studied ceiling panels were equipped with capillary mats using polypropylene as material. During the experiment we have analyzed different cases where the ceiling surface temperature varied between 15C and 19C.

Full-scale laboratory measurements were conducted to determine moisture convectionperformance on the joint of external wall and attic floor. According to field measurements inprevious studies this joint is one of the most typical air leakage paths. On this joint also thehighest air pressure difference forms in winter. Two commonly used external walls: timberframeand autoclaved aerated concrete walls were measured. The attic floor was in both casesa timber-frame structure.

Heating, ventilating and air-conditioning (HVAC) system sizing for existing single family residents in hot and humid and temperate climates present different problems. In hot and humid climates, the proper sizing of residential air-conditioning systems is an important issue, since if the system is over-sized the resulting mold problems can cause significant problems with occupants who are susceptible to airborne spores like mold that can severely affect their asthmatic illnesses.

This study was carried out in collaboration with the district heating firm RADET SA from Bucharest, Romania, in order to support the acoustic renovation of the thermal stations, to meet the modern requirements of the indoor acoustic comfort. The measurement sequence consists in the recording of the sound pressure level in a bloc of flats: inside the thermal station placed at the underground level of the building and inside the apartments. The noise level was 70 dB inside the thermal station and over 44 dB inside the apartments.

In our previous research[1], office workers are relatively frequent in self-reported symptomsof MCS/IEI compare to construction worker who highly exposed to VOCs compounds.However in that research, the subjects were too small to say it clearly. Based on that researchresults, self reported symptom surveys to 110 office workers and personal exposureconcentration measurement were conducted to 13 of people. VOCs exposure levels weremeasured within office, house and other places for a week by Passive Sampling Method.

In buildings, favorable growing conditions for mold fungi can occur and cause fungusinfestation. The danger for the occupants of dwellings lies in the spreading of pathogensthrough microorganisms. Mold fungi can occur not only on the surface of external walls, butalso inside construction parts. A prerequisite for preventing mold fungus is the knowledge ofthe transient building physical boundary conditions under which fungus growth takes place.The decisive parameters of influence like temperature, humidity and substrate have to beavailable over a certain period of time simultaneously.

This paper studies the extent of mould problems in a high-rise apartment complex with sixbuildings located in suburban of Seoul, Korea. The complex is composed of 466 householdswith different stories in buildings. The apartment buildings have occupants complaints due tomould growth on interior surfaces right after the completion.