Gas hydrate decomposition rate in flowing water

Ryokichi Hamaguchi, Yuki Nishimura, Gen Inoue, Yosuke Matsukuma, Masaki Minemoto

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


The development of methane hydrate (MH), which exists under the ocean floor, has recently been brought to public attention. However, the production technology has not yet been established. It is important to understand the decomposition phenomenon of MH for an investigation of the safety and the profitability of production systems. In this research, the gas hydrate decomposition rate in flowing water was measured using HCFC141b hydrate as a substitute for MH. When the water temperature was higher than the boiling point of the decomposition gas, it was observed that the decomposition gas increased the decomposition rate. Moreover, the decomposition phenomenon was simulated by the lattice gas automaton method in order to establish the technique which analytically estimates the decomposition rate. The validity of the simulation method was shown by comparing the experiments. Furthermore, the formula between Reynolds number and Nusselt number was obtained, which express the heat transfer around the gas hydrate lump.

Original languageEnglish
Pages (from-to)102-106
Number of pages5
JournalJournal of Energy Resources Technology, Transactions of the ASME
Issue number2
Publication statusPublished - Dec 1 2007

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment


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