A position paper on
the future use of refrigerants containing hydrofluorocarbons (HFCs) which
can, potentially, contribute to global warming has been developed by the HVCA
Refrigeration and Air Conditioning (RAC) Group, and endorsed by
the Council of the Association.
The position paper states that it is
a key objective of all members of the RAC Group to deliver to their clients the best possible system performance
at the lowest possible cost in terms of energy use. To do so, they regularly
design and install systems that make use of refrigerants based on ammonia,
carbon dioxide and hydrocarbons, in addition to those based on HFCs.
The paper also makes clear that the
refrigeration and some of the air conditioning sector could already operate without HFCs, and that, in the fullness of time, HFCs may be superseded as has already happened
to chlorofluorocarbons (CFCs) and is now happening to hydrochlorofluorocarbons
(HCFCs). To that extent, the RAC Group is in sympathy with the aspirations of the
environmental lobby.
It believes, however, that for the
foreseeable future HFCs have a vital role to play in helping users to make the
transition from ozone-depleting refrigerant gases (such as the HCFC-based R22,
which is already the subject of a phase-out programme owing to its
ozone-depleting potential) to more environmentally benign alternatives.
To consider banning HFC use as early
as 2011, as part of a scheduled review of the European F-Gas Regulation, is
entirely impractical in that
it would require wholesale plant replacement programmes which end users simply
could not afford to carry out, the RAC Group insists.
As things stand, HFCs remain the
most energy-efficient choice
for many applications for example, in most small to medium-sized
air conditioning systems, the position paper argues. Refrigerants are
currently responsible for just 2% of global greenhouse gas emissions and some
75% of that figure is accounted for by vehicle air conditioning. In ten years
time, when the motor industry has met its phase-out target, HFCs will account
for less than 0.5% of greenhouse gas emissions.
Meanwhile, the refrigeration and air
conditioning sector is putting its own house in order so as to minimise the
environmental impact of continued HFC use. It has embraced the European F-Gas
Regulation and encouraged Government to enforce it rigorously, so that
professional standards
are raised and refrigerant leakage brought under control. And it is developing
further best practice guidance that goes far beyond the mandatory requirements.
By 2011, the F Gas Regulation will
have been in place for only 18 months. This is not a very long period during
which to ascertain whether it is having the desired effect, especially in terms
of significant reduction in refrigerant leakage, the position paper points
out.
The HVCA and the RAC
Group are therefore urging the European powers-that-be to approach the review
process with an open mind and to consider very carefully the relative pros
and cons before rushing to judgement on the HFC issue.
Source: HVCA |