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Characteristic analysis of methane-gas generation by oxidizing heat of stored coal and hold ventilation control; Sekitan unpansen ni okeru sanka hatsunetsu ni yoru methane gas hassei to sonai kankyo seigyo ni tsuite

Journal Article:

Abstract

A demand of coal shows the tendency in the increase worldwide, with this, the marine transportation of the coal gradually increases, and the collier has also enlarged. The traffic pattern of coal is mainly the bulk transportation. In this transportation system, by the oxidation exothermic reaction of the coal, methane gas is produced, simultaneously the coal quality such as coking property or heat quantity is decreased and sometimes spontaneous ignition is caused. Therefore, it is necessary to equip with a ventilator to control the concentration of methane gas and to avoid the self heating of the coal. In this study, the quantity of methane-gas produced by heating coal using an electric furnace was measured and the experiment to investigate the temperature dependency of the methane-gas generated from the coal was conducted. By using the result of the measurement, the quantity of methane-gas produced from the coal stored in the hold of a coal cargo was estimated. And, the mathematical analyses on the changing degree depend on the times of a temperature in the hold under navigation, a concentration of oxygen and a concentration of methane-gas, were conducted. 11 refs., 19 figs., 2 tabs.
Authors:
Fukuchi, N; Nakashima, T; [1]  Kudo, S
  1. Kyushu Univ., Fukuoka (Japan)
Publication Date:
Dec 31, 1998
Product Type:
Journal Article
Reference Number:
SCA: 420200; PA: JP-99:0G0684; EDB-99:075225; SN: 99002096888
Resource Relation:
Journal Name: Nippon Zosen Gakkai Ronbunshu (Journal of the Society of Naval Architects of Japan); Journal Issue: 184; Other Information: PBD: Fal 1998
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; TANKER SHIPS; TRANSPORT; COAL; OXIDATION; REACTION HEAT; METHANE; VENTILATION SYSTEMS; CONTROL SYSTEMS; OXYGEN; CONCENTRATION RATIO; NUMERICAL ANALYSIS; SIMULATION
OSTI ID:
365124
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: NZGRDU; ISSN 0514-8499; TRN: JN99G0684
Submitting Site:
NEDO
Size:
pp. 653-663
Announcement Date:

Journal Article:

Citation Formats

Fukuchi, N, Nakashima, T, and Kudo, S. Characteristic analysis of methane-gas generation by oxidizing heat of stored coal and hold ventilation control; Sekitan unpansen ni okeru sanka hatsunetsu ni yoru methane gas hassei to sonai kankyo seigyo ni tsuite. Japan: N. p., 1998. Web.
Fukuchi, N, Nakashima, T, & Kudo, S. Characteristic analysis of methane-gas generation by oxidizing heat of stored coal and hold ventilation control; Sekitan unpansen ni okeru sanka hatsunetsu ni yoru methane gas hassei to sonai kankyo seigyo ni tsuite. Japan.
Fukuchi, N, Nakashima, T, and Kudo, S. 1998. "Characteristic analysis of methane-gas generation by oxidizing heat of stored coal and hold ventilation control; Sekitan unpansen ni okeru sanka hatsunetsu ni yoru methane gas hassei to sonai kankyo seigyo ni tsuite." Japan.
@misc{etde_365124,
title = {Characteristic analysis of methane-gas generation by oxidizing heat of stored coal and hold ventilation control; Sekitan unpansen ni okeru sanka hatsunetsu ni yoru methane gas hassei to sonai kankyo seigyo ni tsuite}
author = {Fukuchi, N, Nakashima, T, and Kudo, S}
abstractNote = {A demand of coal shows the tendency in the increase worldwide, with this, the marine transportation of the coal gradually increases, and the collier has also enlarged. The traffic pattern of coal is mainly the bulk transportation. In this transportation system, by the oxidation exothermic reaction of the coal, methane gas is produced, simultaneously the coal quality such as coking property or heat quantity is decreased and sometimes spontaneous ignition is caused. Therefore, it is necessary to equip with a ventilator to control the concentration of methane gas and to avoid the self heating of the coal. In this study, the quantity of methane-gas produced by heating coal using an electric furnace was measured and the experiment to investigate the temperature dependency of the methane-gas generated from the coal was conducted. By using the result of the measurement, the quantity of methane-gas produced from the coal stored in the hold of a coal cargo was estimated. And, the mathematical analyses on the changing degree depend on the times of a temperature in the hold under navigation, a concentration of oxygen and a concentration of methane-gas, were conducted. 11 refs., 19 figs., 2 tabs.}
journal = {Nippon Zosen Gakkai Ronbunshu (Journal of the Society of Naval Architects of Japan)}
issue = {184}
journal type = {AC}
place = {Japan}
year = {1998}
month = {Dec}
}