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Types of Fire Alarm Systems

(Issue of a magazine 5/2014, page 140)

It is important to understand that a hotel fire alarm and detection system should provide early detection of the source of ignition and at the same time guarantee a nearly complete absence of false alarms – to avoid the financial and reputational losses, not to mention human casualties. This article dwells on the problem of choosing a right fire alarm system, fire detectors and their arrangement based on particular features of a property we want to protect.

Structural Analysis and Design Mode

(Issue of a magazine 5/2014, page 144)

Continued. Beginning in the № 2-4, 2014

Toshiba VRF Systems – Maximum Reliability, Minimal Costs

(Issue of a magazine 4/2014, page 108)

Japanese company Toshiba has produced air-conditioning systems for over half a century. In 1977 Toshiba was the first to introduce microprocessor controlled air conditioners, and in 1981 the company produced an inverter air conditioner. In 1998 it launched Japan’s first air conditioner that operated on eco-friendly refrigerant R410A. Innovative technologies make it possible every year to improve the efficiency, comfort and reliability of air conditioning systems. In recent years Toshiba has created the world’s first VRF systems with three-inverter compressors in the outdoor unit.

New Features of VRF Systems

(Issue of a magazine 4/2014, page 112)

The fact that VRF systems are a really serious competitors to chiller-fancoil systems is no longer doubtful. In the market of professional climate control equipment the interest towards VRF keeps on growing every year, and today a lot of customers give preference to it. However, most customers do not hurry to completely abandon other equipment in its favor. This is caused by many factors, including the opportunity to work with VRF in combination with supply and exhaust ventilation systems and use them as compressor and condenser blocks.

Structural Analysis and Design

(Issue of a magazine 4/2014, page 114)

Beginning in the № 2, 20 14

Active Fire Protection of High-Rise Buildings

(Issue of a magazine 3/2014, page 114)

In continuation of the series of publications on integrated approaches to fire safety of high-rise buildings we decided to dwell upon the issue of active fire protection in a special category of spaces, where it is undesirable or unacceptable to use the traditional fire extinguishing agents based on water or powder. Such areas primarily include server rooms, LAN closets and other engineering utility premises with electronic or electrical equipment located on floors of highrise buildings.

Structural Analysis and Design

(Issue of a magazine 3/2014, page 118)

Beginning in the № 2, 2014

Structural Analysis and Design

(Issue of a magazine 2/2014, page 116)

There are many factors affecting structural behavior in fire, such as material degradation at elevated temperatures, restrained thermal expansion, thermal bowing, and the degree of redundancy available when the structure acts as a whole. Each factor is addressed separately, but in an integrated structure exposed to fire, they all will interact to generate more complex structural behavior. Traditionally, steel fire design has been based on fire-resistance testing, although fire resistance by calculation also has been implemented for many years.

Fire Load and Severity of Fires

(Issue of a magazine 1/2014, page 112)

Ending. Beginning in № 2, p. 106–11., № 3, p. 114–119, № 4, p. 108–111, № 5, p. 116–119, № 6, p. 114–119 (2013)

Superiority Technologies

(Issue of a magazine 1/2014, page 110)

LG Electronics is preparing to release a fourth generation multi-zone system – Multi V IV, which, according to the experts from the LG Headquarters (Twin Towers, Seoul) will mark a new standard for VRF - conditioners.