While being used for years in industrial applications, gaseous contaminant sorption units suchas activated-carbon filters remain marginal in office and residential buildings. This study deals with models that could help building designers and administrators to design and maintain activated-carbon filters depending on the environmental conditions (pollution load, airflow rate, temperature, humidity) they operate.

This is one of two CLIMA 2007 papers on gas phase air cleaning by this author. The Science of Gas Phase Air Cleaning’ covers aspects of air quality, gas phase air cleaning (particularly adsorption) limitations and opportunities, capital and energy saving

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.

The building of the warehouse complexes, equipped with the contemporary technologies of storage and the sending of goods, intensively is developed in Russia. In 2002-2005 scientific production venture "Termek" and The Central Research Institute for Industrial Buildings was executed the design and the building of the heating systems and ventilation of the warehouse complex "SHERLAND" (area of drying storages - 26000 m, the height 17m.).
The system of hot-air heating and ventilation with the supply of heated air through the nozzles

The focus on implementing cost efficiency energy efficiency measures will in all probability increase in the future, but it has been shown that trustworthy, site specific information are key features is increasing the adoption of such measures.This study shows that Building Energy Simulation (BES) software gives trustworthy predictions of energy use and average temperature in the studied case, making it possible to study different HVAC control strategies.

In this study, energy consumptions associated with the change in outdoor air flow rate areanalyzed based on numerical methods. By employing the concept of ventilation effectiveness,possible reductions in the outdoor air load through reductions in the amount of outdoor air flow rate has been estimated. In addition, the effects of optimizing the capacity of HVAC equipment on annual energy consumption and annual CO2 emissions have been analyzed.

Measuring AERs in an effective, real-time, easy and low-cost way is still a challenge, especially in China where rooms were usually naturally ventilated but not with the Heating, Ventilating and Air Conditioning (HVAC) system. A new AER monitoring method using continuous CO2 sensor was validated through both laboratory experiments and field studies. Controlled laboratory simulation tests were conducted in a 1 m environmental chamber at different AERs (0.1~10.0 hr-1). AERs were determined using steady-state method and decay method based on box model assumptions.

Limited data exist on indoor air and environmental quality (IEQ) in schools, and how IEQ affects students’ health or performance in China. Research was conducted in different types of indoor environments in a university to explore possible relationship. I

Changes of actual load often lead to trouble with the operation of the ventilation system. The design data are no longer correct if, for any reason, the actual load has permanently changed during the usage. The proposed ventilating system maintains the most commonly developed harmful gaseous contaminant content below the permissible level in spaces with forced ventilation. Sensors are mounted in every room, in a given height. By following the demand, the supplied fresh air volume matches the momentary load.

A typical commercial/institutional building is modeled using a computer program developed by ASHRAE as research project number RP-590. The RP-590 program output was used as input in a separate program written to calculate the CO2 concentration levels in the various zones of this typical building on an hourly basis for a one year cycle. This data allow one to see how VAV A/C systems affect the CO2 levels in each zone as the VAV boxes modulate in response to the thermal load.