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AIR CONDITIONING PLANTS [3 records]

Record 1 2019-12-16

English

Subject field(s)
  • Risks and Threats (Security)
  • IT Security
  • Cybernetic Systems
CONT

The root of this cyber-physical risk is that computers now control nearly every mechanical process.... Thermostats, HVAC [heating, ventilation and air conditioning] systems and locks, among others, are now increasingly just interconnected computer systems. Hacking the network of an interconnected smart building could provide access to all connected devices. As the adoption of technology and connectivity increase, physical cyber attacks and failures have become a reality for many industries, from health care facilities to power plants, aviation to manufacturing.

French

Domaine(s)
  • Risques et menaces (Sécurité)
  • Sécurité des TI
  • Systèmes cybernétiques

Spanish

Campo(s) temático(s)
  • Riesgos y amenazas (Seguridad)
  • Seguridad de IT
  • Sistemas cibernéticos
Save record 1

Record 2 2004-07-14

English

Subject field(s)
  • Compressors
  • Freezing and Refrigerating
DEF

A compressor in which increase in ammonia vapor pressure is attained by changing the internal volume of the compression chamber.

CONT

A large majority of ammonia compressors are used for industrial refrigeration, but there are also industrial air conditioning applications such as district cooling plants, university and hospital complexes that have used ammonia for air conditioning...

CONT

Ammonia compressor treatment. Refrigeration systems that use ammonia as the refrigerant are often called compression refrigeration systems. The refrigerant vapor is compressed and passes to the condenser where heat is removed by cooling water. These systems often use an evaporative condenser or cooler to condense the ammonia.

French

Domaine(s)
  • Compresseurs
  • Congélation, surgélation et réfrigération
CONT

[...] fabrication du compresseur à ammoniac pour les fabriques de glace et les entrepôts frigorifiques [...]

CONT

D'immenses appareils de congélation, munis de compresseurs d'ammoniac, sont installés à la surface du sol et envoient dans les profondeurs une solution de liquide congélant calcique au moyen de solides tuyaux de 30 cm d'épaisseur.

OBS

La plupart des compresseurs récents, de moyenne ou grosse puissance, sont conçus pour fonctionner soit à l'ammoniac, soit pour les fluides frigorigènes halogénés les plus courants : R 12, R 22 et R 502.

OBS

compresseur frigorifique : Machine à gaz liquéfiable (fluide frigorigène), permettant de produire du froid par détente de ce gaz, avec récupération du travail de détente.

OBS

ammoniac : Appartenant à la grande famille des fluides frigorigènes les plus divers, l'ammoniac est un gaz formé d'azote (N) et d'hydrogène (H) combinées [...] Ne pas confondre [...] avec l'ammoniaque qui est une solution de gaz ammoniac dans l'eau.

Spanish

Save record 2

Record 3 1986-03-17

English

Subject field(s)
  • Electric Power Stations
CONT

There are opportunities in the design and installation of energy-saving total-energy plants, integrated with complete systems for urban living. In a system on trial in Jersey City, N. J., for example, 5 diesel engines, each with an electrical generating capacity of 600 kW, supply electricity, space heating, hot water, air conditioning, and pneumatic waste collection for 488 dwelling units in 6 buildings, plus 2 schools, a swimming pool, and a commercial building.

French

Domaine(s)
  • Centrales électriques

Spanish

Save record 3

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