Vol 91, No 11 (2002)
Articles
Cascade systems with C02 - a promising trend in refrigeration technology (York)
Abstract
Currently, the main refrigerant used in large industrial refrigeration plants is ammonia. This is due to its excellent thermodynamic properties and environmental friendliness. At the same time, many big refrigeration facilities are located in the densely populated regions, which is not safe for the population in case of emergency emission of ammonia. Various technical solutions are currently used for localization and reduction of emissions.
2-4
Liquefied biomethane - environmentally friendly cheap motor fuel
Abstract
Social, technological and energy aspects of transition of car vehicles on alternative kinds of motor fuels have been considered. A technology of production of biomethane from urban and rural domestic wastes has been described. A schematic diagram of the complex for production of liquefied biomethane based on Stirling technology is presented.
5-8
Cold accumulation: methods and modern technical solutions. Thermochemical accumulators
Abstract
A principle of operation of the thermochemical accumulator of cold is described. Working substances that are used in them are enumerated: hydrides of metals, gas hydrates, zeolites, components of reversible gas reactions. Schematic presentations of thermochemical accumulators of cold are presented.
10-14
GRASSO DuoPack single-stage screw compressor units
Abstract
More than 30 years of experience in design and implementation of many promising innovations allowed Grasso designers to create a new type of DuoPack screw compressor units. During their creation, special design solutions were applied, taking into account the specifics of industrial refrigeration installations in Russia.
17-17
Danfoss Maneurop hermetic compressors
Abstract
In 2001, the Danfoss Maneurop compressor technical expertise center (KM) was established in Moscow. Based on the data accumulated during its work, statistics were compiled and an analysis of the causes of KM failures was carried out. The overview of the causes of KM failures given in the article will help to avoid mistakes in installation and operation and reduce the risk of abnormal situations. Presented cases are common not only for Danfoss Maneurop KM, but also for other hermetic KM, except for those, which are connected with design features of this or that model.
18-19
Alfa Laval: new solutions for refrigeration systems
Abstract
Every year, all the world's leading refrigeration equipment manufacturers showcase their new products at the IKK International Trade Fair in Germany. At the IKK 2002 in October, Alfa Laval, the world leader in heat-exchange equipment for various industries, introduced a number of new components for refrigeration and air-conditioning systems.
20-20
Installation of refrigerating machines with hermetic compressors with cooling capacity from 200 W to 4 kW
Abstract
The installer is often limited in the choice of location for the components of the refrigeration machine: the location of the refrigerated volume is already given, and it vists the location of the compressor (unit), start-up and protection devices of electric drives and determines the routing of pipelines. Nevertheless, for efficient operation of the walking equipment, as well as for safety, it is necessary to strive for fulfillment of a number of requirements to the machine room.
27-30
Atofina refrigerants for retrofit of refrigeration equipment
Abstract
The seminar on this topic, organized by Atofina company, was held on October 7, within the framework of Agroprodmash-2002 exhibition, which took place in early October 2002. It was attended by representatives of many organizations and companies, for which retrofit of refrigeration equipment is of interest.
37-37
International Exhibition "Agroprodmash-2002"
Abstract
The 7th International exhibition "Machinery and equipment for the agro-industrial complex" ("Agroprodmash-2002") was held on October 7-11 in four pavilions of the exhibition complex ZAO "Expocentr" on Krasnaya Presnya. It is organized by ZAO Expocentr with the assistance of the RF Ministry of Agriculture and the RF Ministry of Industry, Science and Technologies. The exposition of 650 exhibitors from 22 countries took place on the area of 13600 m2. Among them were 390 Russian companies and organizations. Equipment for processing, transportation and packing of raw materials and agricultural products, food production at the enterprises of various branches of food industry; equipment for restaurants, bars, stores, supermarkets, food warehouses and depots, refrigeration equipment were widely presented.
38-41