This paper explores the problems about the layout of smoke emission for inside hallways of high-rise buildings and underground garages, the selection of smoke emission fans and fire proof valves for basement air feed systems. With the continuous development of urban construction in our country, high-rise buildings are greatly increased in the large and middle cities, the fireproof problems have been paid great attention by all parties concerned. Authors put forward some superficial views on the design of smoke management for high-rise buildings.

Indoor air humidity is an extremely important environmental parameter that can significantly affect the energy consumption of a building, its structure, the chemical emissions from building materials, as well as occupants' comfort and health. How to control indoor relative humidity has been the subject of much attention in the past decade. This paper expounds the passive and active control strategies, introduces a new control theory with a corresponding control scheme, and gives a simple simulation of a typical controlled room.

Energy consumption in building accounts for 30 percent of all the energy consumption of external envelope takes an important part. But in China, because of the insufficiency in thermal behaviour of building external envelope, indoor average heating temperature is low, while heating energy consumption per unit area is 2-3 times as much as that in developed countries under the same climate condition. In this paper, according to measurement and analysis on some kinds of walls, windows and roofs, the detail methods in energy saving of these structures are described.

Some guidelines for a method devoted to the evaluation of different physical characteristics of building facades, equipped with glazed surfaces, are proposed. New graphs are introduced for checking at the same time the behaviour of several technical-physical parameters of walls, in order to allow comparative analysis of different design configurations in terms of acoustics, lighting and heat transfer properties.

Aiming at the running property of hig-speed passenger cars, the paper discusses its indoor air quality's evaluation index and method for calculating outdoor ventilation rate. It studies the influence of the factors of outdoor air quality, outdoor ventilation rate, outdoor pressure fluctuating, drainage mode and fitment material to the indoor air quality and points out some improving measures for them.

This paper presents the concepts of partition by aero-dynamic means; mentions that vertical current partitioning, horizontal current partitioning and displacement ventilation (DV) are the main measures on partition in large spaces; introduces ways of achieving vertical current partitioning, horizontal current partitioning and DV and the former two ways' numerical simulation conclusions.

This paper investigates ventilation characteristics and room airflow distributions in a workstation area of an office building with a personal environmental system. A personal environmental system is generally believed to be able to provide better thermal environment with less heating and cooling energy consumption. An underfloor air conditioning system with and without a desk-mounted PEM (Personal Environmental Module) is compared. A tracer gas experiment using a SF6 gas is performed to measure local supply index and room mean ventilation effectiveness.

The work presented here is a design and implementation of PID control system to regulate a supply duct outlet air temperature in PEM (Personal Environment Module). Simulation is done first to understand the relationship between a temperature distribution in task space, flow rate and the outlet air temperature of PEM. Then a linear dynamic model of heating process of PEM is obtained P, PD, and PID type control systems, to provide the rapid response without overshoot and saturation, are designed and implemented.

Velocity and turbulence intensity profiles of airflow inside a section of Boeing 737 aircraft cabin were measured using PIV technique. The purpose of the measurement was to provide experimental data for the validation of CFD models being developed for evaluation of air quality and thermal comfort. The test section is approximately 5.6 m long, 2.8 m high and 3.4 m wide, holding 18 passenger seats distributed in 3 rows. A thermal manikin that accurately reproduces the geometry and heat generation of a human being was seated in one of the seats to simulate the human body.

Short-circuiting of ventilation air reduces significantly the efficiency of ventilation in diluting and removing contaminants and excess heat. Therefore the prevention of short-circuiting is very significant to consider at the design stage of air distribution in ventilated rooms. The paper reports on results obtained experimentally from both full-scale and small-scale laboratory tests. Air distribution was quantified by measuring the local mean age of air and the air-exchange efficiency using a trager gas technique.