ASHRAE Journal - September 2022 - 19
PETRA NEW DEVELOPMENT TO MEET
LGWP REQUIREMENTS
Petra Engineering completed a new project initiative in
cooperation with the United Nations Industrial Development
Organization (UNIDO) that aims to replace refrigerants that
contribute to Ozone Depletion and have a high Global Warming
Potential (GWP) factor.
The initiative implements use of Low GWP propane (R290)
as a refrigerant in the manufacturing of large commercial
unitary roof-top HVAC units of up 113 Tons (400 kW).
The project is " considered as a unique cooperation testing
initiative with the UNIDO to manufacture large HVAC
equipment with a Low GWP factor " .
It was conducted in response to a decision by the UNIDO
executive committee to use natural refrigerants and adopt
the Kigali Amendment to the Montreal Protocol.
Complying with the fluorinated greenhouse gases regulation
(EC517/2014), commonly referred to as the F-Gas Regulation,
that introduced a phasedown of high GWP gases by limiting
the amount of gas that can be placed on the market and
considering the A2L Low GWP refrigerants as a new safety
classification from ASHRAE denoting lower flammability,
sometimes referred to as " mildly flammable " , Petra is testing
multiple Low GWP gases such as R-32, R-1234ze, R-452B and
R-454A, B, C & D of the A2L family and a replacement for the
common nowadays used refrigerants of R-134a and R-410A.
Another characteristics Petra is considering is " Flammability "
of the new LGWP. A2L refrigerants have lower flammability
and slow flame propagation (burning velocity <10 cm/sec)
Petra's product offering using low GWP refrigerants includes
(but not limited to) Roof Top Units, Chillers, Computer Room
Air Conditioning (CRAC) units, Central Split Systems and
Residential Split Systems.
Package Unit with R-290 Refrigerant
Air Cooled Water Chiller
with R-452B Refrigerant
Air Cooled Water Chiller
Package Unit with R-32 RefrigerantPackage Unit with R-32 Refrigerant
http://www.petra-eng.com
ASHRAE Journal - September 2022
Table of Contents for the Digital Edition of ASHRAE Journal - September 2022
Contents
ASHRAE Journal - September 2022 - Intro
ASHRAE Journal - September 2022 - Cover1
ASHRAE Journal - September 2022 - Cover2
ASHRAE Journal - September 2022 - 1
ASHRAE Journal - September 2022 - Contents
ASHRAE Journal - September 2022 - 3
ASHRAE Journal - September 2022 - 4
ASHRAE Journal - September 2022 - 5
ASHRAE Journal - September 2022 - 6
ASHRAE Journal - September 2022 - 7
ASHRAE Journal - September 2022 - 8
ASHRAE Journal - September 2022 - 9
ASHRAE Journal - September 2022 - 10
ASHRAE Journal - September 2022 - 11
ASHRAE Journal - September 2022 - 12
ASHRAE Journal - September 2022 - 13
ASHRAE Journal - September 2022 - 14
ASHRAE Journal - September 2022 - 15
ASHRAE Journal - September 2022 - 16
ASHRAE Journal - September 2022 - 17
ASHRAE Journal - September 2022 - 18
ASHRAE Journal - September 2022 - 19
ASHRAE Journal - September 2022 - 20
ASHRAE Journal - September 2022 - 21
ASHRAE Journal - September 2022 - 22
ASHRAE Journal - September 2022 - 23
ASHRAE Journal - September 2022 - 24
ASHRAE Journal - September 2022 - 25
ASHRAE Journal - September 2022 - 26
ASHRAE Journal - September 2022 - 27
ASHRAE Journal - September 2022 - 28
ASHRAE Journal - September 2022 - 29
ASHRAE Journal - September 2022 - 30
ASHRAE Journal - September 2022 - 31
ASHRAE Journal - September 2022 - 32
ASHRAE Journal - September 2022 - 33
ASHRAE Journal - September 2022 - 34
ASHRAE Journal - September 2022 - 35
ASHRAE Journal - September 2022 - 36
ASHRAE Journal - September 2022 - 37
ASHRAE Journal - September 2022 - 38
ASHRAE Journal - September 2022 - 39
ASHRAE Journal - September 2022 - 40
ASHRAE Journal - September 2022 - 41
ASHRAE Journal - September 2022 - 42
ASHRAE Journal - September 2022 - 43
ASHRAE Journal - September 2022 - 44
ASHRAE Journal - September 2022 - 45
ASHRAE Journal - September 2022 - 46
ASHRAE Journal - September 2022 - 47
ASHRAE Journal - September 2022 - 48
ASHRAE Journal - September 2022 - 49
ASHRAE Journal - September 2022 - 50
ASHRAE Journal - September 2022 - 51
ASHRAE Journal - September 2022 - 52
ASHRAE Journal - September 2022 - 53
ASHRAE Journal - September 2022 - 54
ASHRAE Journal - September 2022 - 55
ASHRAE Journal - September 2022 - 56
ASHRAE Journal - September 2022 - 57
ASHRAE Journal - September 2022 - 58
ASHRAE Journal - September 2022 - 59
ASHRAE Journal - September 2022 - 60
ASHRAE Journal - September 2022 - 61
ASHRAE Journal - September 2022 - 62
ASHRAE Journal - September 2022 - 63
ASHRAE Journal - September 2022 - 64
ASHRAE Journal - September 2022 - 65
ASHRAE Journal - September 2022 - 66
ASHRAE Journal - September 2022 - 67
ASHRAE Journal - September 2022 - 68
ASHRAE Journal - September 2022 - 69
ASHRAE Journal - September 2022 - 70
ASHRAE Journal - September 2022 - 71
ASHRAE Journal - September 2022 - 72
ASHRAE Journal - September 2022 - Cover3
ASHRAE Journal - September 2022 - Cover4
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