{"id":8178,"date":"2024-09-10T10:12:34","date_gmt":"2024-09-10T10:12:34","guid":{"rendered":"https:\/\/svestudy.com\/?page_id=8178"},"modified":"2025-05-12T18:53:22","modified_gmt":"2025-05-12T18:53:22","slug":"chief-engineer-unit-17-fuel-consumption-q2","status":"publish","type":"page","link":"https:\/\/svestudy.com\/?page_id=8178","title":{"rendered":"CHIEF ENGINEER Unit 17 FUEL CONSUMPTION Q2"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n
    \n
  1. A vessel has bunkered 250 tonnes of diesel fuel of which 10% is assumed to be unpumpable. The average combined sea load of the vessel is 2800kW with a stated specific consumption of 0.35kg\/kWh at a speed of 18 knots.
    Calculate EACH of the following:
    (a) the daily fuel consumption of the vessel;(4)
    (b) the safe steaming range of the vessel.(6)<\/li>\n<\/ol>\n\n\n
    \n
    \n\t\t\t
    \n\t\t\t

    (a) the daily fuel consumption of the vessel;(4)<\/p>\n\t\t\t

    <\/span><\/div>\n\t\t<\/div>\n\t\t\t
    \n\n

    Here’s how to calculate the daily fuel consumption of the vessel:<\/p>\n\n\n\n

    1. Calculate Usable Fuel:<\/strong><\/p>\n\n\n\n

      \n
    • Unpumpable fuel: 250 tonnes * 10% = 25 tonnes<\/li>\n\n\n\n
    • Usable fuel: 250 tonnes – 25 tonnes = 225 tonnes<\/li>\n<\/ul>\n\n\n\n

      2. Calculate Daily Fuel Consumption in kg:<\/strong><\/p>\n\n\n\n

        \n
      • Average power consumption: 2800 kW<\/li>\n\n\n\n
      • Specific fuel consumption: 0.35 kg\/kWh<\/li>\n\n\n\n
      • Hours in a day: 24<\/li>\n\n\n\n
      • Daily consumption (kg): 2800 kW * 0.35 kg\/kWh * 24 hours = 23520 kg<\/li>\n<\/ul>\n\n\n\n

        3. Convert to Tonnes:<\/strong><\/p>\n\n\n\n

          \n
        • 1 tonne = 1000 kg<\/li>\n\n\n\n
        • Daily consumption (tonnes): 23520 kg \/ 1000 kg\/tonne = 23.52 tonnes<\/li>\n<\/ul>\n\n\n\n

          Answer:<\/strong> The daily fuel consumption of the vessel is 23.52 tonnes.<\/p>\n\n<\/div>\n\t\t<\/div>\n\n

          \n\t\t\t
          \n\t\t\t

          (b) the safe steaming range of the vessel.(6)<\/p>\n\t\t\t

          <\/span><\/div>\n\t\t<\/div>\n\t\t\t
          \n\n

          To determine the safe steaming range, we need to consider the usable fuel and the daily fuel consumption:<\/p>\n\n\n\n

            \n
          • Usable fuel: 225 tonnes<\/li>\n\n\n\n
          • Daily consumption: 23.52 tonnes<\/li>\n<\/ul>\n\n\n\n

            Safe steaming range (in days) = Usable fuel \/ Daily consumption = 225 tonnes \/ 23.52 tonnes\/day \u2248 9.56 days<\/p>\n\n\n\n

            Therefore, the safe steaming range of the vessel is approximately 9.56 days.<\/strong><\/p>\n\n\n\n

            It’s important to note that this is a theoretical maximum. In practice, it’s advisable to maintain a safety margin and not consume all the fuel. Factors like weather conditions, unexpected delays, and the need to maintain a reserve for emergencies should be taken into account when planning voyages.<\/p>\n\n<\/div>\n\t\t<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"templates\/template-full-width.php","meta":{"nf_dc_page":"","footnotes":""},"class_list":["post-8178","page","type-page","status-publish","hentry"],"featured_image_src":null,"_links":{"self":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/8178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/svestudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8178"}],"version-history":[{"count":3,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/8178\/revisions"}],"predecessor-version":[{"id":8331,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/8178\/revisions\/8331"}],"wp:attachment":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}