Príspevok
The Feasibility of a Global Net Zero for RACHP in 2050; the Impact of Main Parameters
DOI: 10.18462/iir.compr.2024.0636
Sekcia: Plenary session
Stav prijatia: Abstrakt prijatý
Autori
| Meno | Organizácia | |
|---|---|---|
| Natasha Kochova | ||
| Lambert Kuijpers, Dr. | AEC | |
| Asbjorn Vonsild |
Abstrakt
The 2015 Paris Climate Conference resulted in a decision to keep the global atmospheric temperature rise well below the pre-industrial one. It resulted in the publication of many climate-science reports, starting with the 1.5 °C IPCC Special Report, a definition of net zero emissions and possible pathways to achieve net zero by 2050, to control a further global temperature increase. It applies to all process emissions (a variety of gases) and all indirect “driver” emissions (from fuels, electricity production, etc.). RACHP, as an important player, would also need to comply with net zero targets. Banks and emissions -including energy efficiency- for developed and developing countries have been the subject of extensive spreadsheet studies to determine “zero” emissions. In this paper, the main factors for simplified calculations of the impact of RACHP-related emissions during 2020-50 are determined, for developed and developing countries, and globally - including growth assumptions. Next, a scenario approach enables the performing of sensitivity analyses to determine to what extent net zero can be reached. Several parameters are examined quantitatively: (1) refrigeration capacities, i.e., inventories produced and banked, versus growth (assuming certain equipment refrigerant charge and leakage), (2) GWPs --while equipment refrigerant consumption in CO2-eq. has to (at least) comply with Kigali measures--, (3) energy efficiency, and (4) electricity using certain kg CO2/kWh assumptions. (1) and (2) determine HFC refrigerant emissions in CO2-eq., (3) and (4) the electricity production-related CO2 emissions. Both can be compared for various scenarios. Sets of results yield an overall view of the possibilities and challenges for achieving a global 2050 RACHP net zero.
Kľúčové slová
energy efficiency, energy mix, modelling RACHP, net zero, renewables