Online version: PDF - DTIE

114
UNIT 4: ENVIRONMENT MANAGEMENT SYSTEMS
in areas near busy garages and roads report dizziness, it could be caused by
continued exposure to higher levels of carbon monoxide and carbon dioxide.
Examples of Good Practice
The Tampere Hall Concert and Conference Centre, Tampere, Finland, adjusts
air-conditioning during concerts and meetings according to load levels. Staff
responsible for air-conditioning circulate in the halls with carbon dioxide meters
and increase or decrease air-conditioning as required.
At the Maurya Sheraton Hotel and Towers, New Delhi, India, ‘ozoniers’ are
installed in guest rooms to improve indoor air quality. These devices (sometimes
referred to as ‘aranisers’) energise the oxygen in the air. Energised oxygen
accelerates the breakdown of odours, pollutants and many other harmful
substances.
COMMON QUESTION What is an araniser?
Air is purified naturally in several ways. The most frequent is during a
thunderstorm, when the build-up of energy before a lightening strike charges
the oxygen in the air. The charged oxygen reacts with contaminants in the air
and destroys them. This process is partly why the air smells so clean and fresh
after a storm.
An araniser creates an energy corona, a simulation of the natural phenomenon.
It selectively separates the molecules of oxygen in the surrounding atmosphere
and regroups them into ‘free’ nascent atoms of oxygen. These groupings have
more power to combat pollutants.
ENVIRONMENT MANAGEMENT PROGRAMME FOR THE
MANAGEMENT OF OZONE-DEPLETING SUBSTANCES
The main uses of ODS in hospitality businesses are:
S
E
C
T
I
O
N
2
• Refrigerators, freezers including cold display cabinets, mini-bars, ice
and vending machines, in which CFC-11, CFC-12 and CFC-114 may be
used as refrigerants;
• Air-conditioning in buildings and vehicles in which CFC-11 and CFC-12
may be used as refrigerants;
• Dry-cleaning equipment which uses CFC-113 and methyl chloroform;
• CFC-11, CFC-12, CFC-113, and CFC-114 are used as blowing agents in
the manufacture of plastic foams. Foams are used in hospitality for
packaging, upholstery, pipe insulation, cushions, car interiors and
carpet underlay;
• Halon-1211, Halon-2402 and Halon-1301 are used in fixed and portable
fire extinguishers.
ODS Management in Refrigerators and Freezers
Discontinuing the use of ODS in refrigeration includes containment, recycling,
retrofitting, and replacement.
• Containment means regular maintenance to prevent refrigerant
leakage and thereby avoid the need to recharge or ‘top-up’ the system;