VESSEL INCLUDING ENGINES AND METHOD OF RELIQUEFYING BOG FOR THE SAME

摘要

Disclosed is a vessel including an engine. The vessel including an engine includes: a self-heat exchanger exchanging heat of evaporative gas discharged from a storage tank; a multistep compressor compressing the evaporative gas, passing through the self-heat exchanger, in a multistep mode; a first decompressor expanding a part of the evaporative gas passing through the self-heat exchanger after being compressed by the multistep compressor; and a second decompressor expanding another part of the evaporative gas passing through the self-heat exchanger after compressed by the multistep compressor. The self-heat exchanger cools the evaporative gas, compressed by the multistep compressor, by using the evaporative gas, discharged from the storage tank, and the evaporative gas, expanded by the first decompressor, as a refrigerant.