The conclusions of an earlier research on humidity control in stand-alone houses are first presented in that paper, then a discussion follows on RH control targets , observed RH levels and the levels at which mold growth occurs. Then a second round of experiments are presented, and compared to the previous ones. The performance of 7 humidistat models are examined and a new control stategy is proposed.

This article examines the effectiveness of air cleaners, ranging from portable to duct-mounted devices. For VOCs removal or combined removal of VOCs and particles there is no fully established standard testing method. To fill this gap two studies have been performed using the stainless steel chamber test facility at Syracuse University, the summary of test results is presented for sorption-based air cleaners, UV-PCO devices, Ionizers and Ozone generators.

The effect of building recirculation rates on the concentrations of secondary organic aerosol (SOA), resulting from reactions between indoor limonene and ozone is examined in that study. The experiments have been carried out in a large environmental chamber using four recirculation rates, a constant outdoor air exchange rate , and constant emission rates for limonene and ozone. The results are presented.

The aim of that study was to compare both the Eulerian and Lagrangian modeling methods with an emphasis on their performance for predicting particle concentration distributions in ventilated spaces. The numerical results obtained with the two methods have been compared with the experimental data.

For that study experiments have been performed using either particle production or ozone removal as probes for a better understanding of oxidation processes on filter surfaces. The results indicate that the exposure history of a filter influences the quantity of oxidation products generated when ozone-containing air flows through it.

For that study, two Norvegian schools with CO2-sensor based demand controlled displacement ventilation (DCDV-CO2) are analysed and compared with traditional constant air volume (CAV) ventilation. The analysis period lasted one week in November. Airflow rates and the energy performance were analysed through measurements and use of a detailed, calibrated simulation model.

A thermal model of a greenhouse is presented in that paper, it is based on fan-pad evaporative cooling. The thermal performance of the greenhouse, as predicted by the model under different climatic conditions is analyzed. The conclusions of the analysis are presented.

A theoretical investigation into the performance of a novel mop-fan air cleaning system for buildings has been made for that study. That system is able to perform self-cleaning while circulating indoor air throughout the building space. The fluid dynamic characteristics of the mop impellers have been simulated and the UV light-photon characteristics of the mop cleaning system too. A room self-cleaning process has been analysed that takes into account the effect of pollutant-generating rate and air flow rate on mop reaction efficiency and self-cleaning time.

The spread of bacteria within an isolation room is closely related to room air distribution. In this article a CFD method is used to investigate the effects of a moving person and the opening and closing of a sliding door on room air distribution , including velocity, pressure and contaminant fields.

The aims of that paper were : first, to demonstrate the acoustics and ventilation design tool generating the geometric features, the simple acoustics properties and the natural rates for buildings, ranging from a simple open-plan office to a multi-purpose space. Then, to apply the design tool retrospectively to four 19th century buildings so that the validity of the design tool may be discussed, its effectiveness demonstrated and evaluated.