Príspevok
The Feasibility of a Global Net Zero for RACHP in 2050: Analyzing the Impact of Main Factors Involved
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 results in sensitivity analyses to determine possible ways to reach net zero. Based on quantitative considerations several issues are examined: (1) refrigerating capacities, i.e., refrigerant inventories produced and banked, based on (2) equipment charge and leakage (emission) assumptions, coupled with (3) energy consumption. GWPs are used for refrigerant consumption to (at least) comply with Kigali. This leaves energy efficiency as the most important parameter for the sensitivity analyses. The electricity-related emissions are calculated based on certain kg/kWh assumptions and compared to the RACHP ones. Results then present 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