암모니아 환경에서 선박 엔진용 고무 소재의 열화 특성 및 영구압축줄음율 평가
Degradation Characteristics and Compression Set of Rubber Materials for Marine Engines in Ammonia Environment
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초록
Global climate change is already underway, leading to extreme weather events such as rising sea levels, severe cold snaps, and heat waves. These changes pose significant threats to human civilization, including the emergence of new infectious diseases and disruptions to economic activities. In response, the Inter- national Maritime Organization (IMO) has proposed a carbon-neutral policy that aims to prohibit the use of carbon-based fuels by 2050. For future ship fuel compositions, there will be a decline in the use of fossil fuels and a corresponding increase in the adoption of ammonia as a fuel source. This study evaluated dura- bility of O-ring materials known to be as critical as metal components in ship engines and related systems under ammonia-rich environments. Various rubber materials commonly used for O-rings in ship engines and equipment were tested for durability in a 99.5% ammonia environment. Results suggest that some EPDM and FFKM materials might be suitable for such applications. However, the applicability of rubber materials cannot be determined solely based on simple chemical reaction characteristics. Reliable data can only be secured by simulating and replicating actual operating conditions in which such materials are used.
Abstract
Global climate change is already underway, leading to extreme weather events such as rising sea levels, severe cold snaps, and heat waves. These changes pose significant threats to human civilization, including the emergence of new infectious diseases and disruptions to economic activities. In response, the Inter- national Maritime Organization (IMO) has proposed a carbon-neutral policy that aims to prohibit the use of carbon-based fuels by 2050. For future ship fuel compositions, there will be a decline in the use of fossil fuels and a corresponding increase in the adoption of ammonia as a fuel source. This study evaluated dura- bility of O-ring materials known to be as critical as metal components in ship engines and related systems under ammonia-rich environments. Various rubber materials commonly used for O-rings in ship engines and equipment were tested for durability in a 99.5% ammonia environment. Results suggest that some EPDM and FFKM materials might be suitable for such applications. However, the applicability of rubber materials cannot be determined solely based on simple chemical reaction characteristics. Reliable data can only be secured by simulating and replicating actual operating conditions in which such materials are used.
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