Development of Water Separator of Impingement Type:—Elimination of Condensed Water from the Charging Air in Highly Supercharged, Large Bore Marine Diesel Engines—

スポンサーリンク

概要

• 論文の詳細を見る

• Abnormal wear of cylinder liner and piston ring, and abnormal corrosion of liner in the highly supercharged marine diesel engines may be ascribed mainly to the condensed water in the charging air.<BR>In order to avoid the water condensation in the charging air, the temperature of charging air should be raised up over the dew point. As the dew point of the charging air increases according to the increase of the charging pressure, the temperature of the charging air should be kept at higher level in highly supercharged engines.<BR>However, it is not always possible to keep the charging air temperature over the dew point due to the limitation by the cooling sea water temperature. Moreover, the higher charging air temperature has a dis-advantage that it gives higher cycle gas temperature and thereby higher thermal load on combustion chamber.<BR>Based on the above reasons, we decided to develop the water-separator in order to take off the condensed water before its entering into the cylinder, keeping the charging air temperature as low as possible.<BR>In order to find out the optimum type of separator, the preliminary test was carried out, and as a result, impingement type was picked up. At the next step, influence of the various geometric parameters of the separator on the separation efficiency was investigated by the test unit with large capacity.<BR>Through the investigations of the test results, the design criteria were obtained. Based on these design criteria, such a water separator was fitted in the engines in service. Through the measurement on board each ship, it was confirmed that the separator was working with sufficiently high efficiency and with low pressure drop.

• 公益社団法人 日本マリンエンジニアリング学会の論文

著者

• 琵琶 忠志

  三井造船 (株)

• 佐伯 謙

  三井造船 (株) 玉野事業所

• 甫喜山 惇

  三井造船 (株)

• 大野 光男

  三井造船 (株)

関連論文

• 2.1三井-B&W形機関の性能・耐久性と運転・保守について
• 弾性継手を介した軸系の振動
• 遊星歯車式減速装置を有するギアードディーゼルのねじり振動
• 三井―B&W形機関の二, 三の改善について
• 三井-B&W形ガスインジェクションディ-ゼル機関における最近の開発 (ガス燃料機関とその応用小特集号)
• 就航船ディ-ゼル主機関のモダニゼ-ション(技術資料)
• ガスインジェクションディ-ゼル機関とそのLNG船への応用
• 三井-B&Wディ-ゼル機関の信頼性向上と省力化 (保守整備の省力化と信頼性特集号)
• タイトル無し
• Development of Water Separator of Impingement Type:—Elimination of Condensed Water from the Charging Air in Highly Supercharged, Large Bore Marine Diesel Engines—

スポンサーリンク