Évaluation de l'impact environnemental du cycle du réfrigérateur avec les performances climatiques tout au long du cycle de vie

Translated title of the contribution: Environmental effect evaluation of refrigerator cycle with life cycle climate performance

Seyoung Choi, Yujun Jung, Yonghan Kim, Hoseong Lee, Yunho Hwang

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, a method to evaluate the environmental effects of household refrigerators is newly developed in terms of life cycle climate performance (LCCP). The energy consumption model of the refrigerator is developed with three types of typical single evaporator refrigerators. The operation ratio of the evaporators, which is critical for calculating the energy consumption of dual evaporator refrigerators, is determined using experimental results of serial, bypass, and parallel-circuit cycle refrigerators. The LCCP results show that the system performance and equipment manufacturing emissions are dominant factors in lifetime CO2 emissions. Therefore, energy- and material-related factors, such as refrigerator cycle options, refrigerator material, insulation, and power sources, are primarily investigated. For cycle options, CO2 emissions can be reduced by 14.7% using a two-stage cycle. For condenser materials, CO2 emissions can be reduced by 2% to 2.5% using aluminum instead of steel. For insulation, the total emissions can be reduced by up to 7.7% by applying vacuum insulation panels on each side of the refrigerator. When 20% renewable energy is supplied, the total emissions are expected to be reduced by 13% in the baseline, 19.9% in the parallel-circuit cycle, and 26% in the two-stage cycle.

Translated title of the contributionEnvironmental effect evaluation of refrigerator cycle with life cycle climate performance
Original languageFrench
Pages (from-to)134-146
Number of pages13
JournalInternational Journal of Refrigeration
Volume122
DOIs
Publication statusPublished - 2021 Feb

Keywords

  • CO emissions
  • Environmental effect
  • Household refrigerator
  • LCCP
  • Vapor compression cycle

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering

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