『Original by HaiChuan Translation Team』Determination of the capacity of diesel transfer pumps for diesel engines and generators
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English title: Determining Diesel Transfer Pump Capacity For Diesel Engines And Generators. Original article link: Click here. Original author: ankur2061. Translator ID: @Liu Ying/liluoliuying. Those who wish to subscribe to the articles published by the “Haichuan Translation Team” should leave a message below the post saying “I want to subscribe”, or send me a message; I will notify everyone as soon as new articles are available. Typically, process engineers need to design diesel storage and transfer systems for diesel engines and diesel generators. Where to start designing is often a question for process engineers. Designing such a system requires a design foundation. Today’s blog post provides the design fundamentals for diesel storage and transmission system design, along with a solution based on these fundamentals. My blog readers are welcome to convert this information into an Excel spreadsheet for calculation and sharing. Base for diesel consumption: Diesel generators are operated at full load. Rated power of diesel generators (KW), Diesel consumption (m3/h) – see the calculation example below: Inputs: Number of diesel generators installed: 3; Number of diesel generators in operation: 2; Rated power of each diesel generator: 1500 KW. Time required to refill the diesel tank: 1 hour. Design flow coefficient of the transfer pump: 1.1. Base period for the daily diesel tank capacity: 24 hours. Available volume coefficient of the daily diesel tank = 0.95. Residence time in the main diesel tank = 7 days (Note 1). Calculations: Diesel flow rate per diesel generator = 0.4 m3/h (from the table above). Total diesel flow rate = 0.8 m3/h (0.4 * 2). Theoretical daily capacity of the fuel tank per diesel generator = 9.6 m3 (0.4 * 24). Actual daily usable capacity of the fuel tank per diesel generator = 10.11 m3 (9.6 / 0.95). Maximum daily diesel consumption = 19.2 m3 (9.6 * 2), where 2 is the number of diesel generators in operation. Maximum diesel flow rate = 19.2 m3/h (19.2 / 1), where 1 is the diesel filling time in hours. Designed capacity of the diesel pump = 21.12 m3/h (19.2 * 1.1). Working volume of the main diesel tank = 134.4 m3 (19.2 * 7). Note: 1. The total diesel storage capacity for installations on land is usually 7 days; it is typically 15 days for installations on land as well. 2. The example above considers a main oil storage tank and a separate daily tank for each diesel generator. In many cases, the dwell time of the diesel generator’s daily tank is 8–12 hours rather than 24 hours; this means that filling is required twice a day when the dwell time is 12 hours, and three times a day when it is 8 hours
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It’s useful for FEED purposes, as a reference!
Comment on the first point below – I’m not quite sure about it: “The total diesel storage capacity installed on land is usually 7 days, while it’s usually 15 days for diesel storage capacity installed on land.” ”The conditions in the first and second sentences seem the same, but the number of days differs
The translation here is incorrect; the total diesel storage capacity for installations on land is usually 7 days, while that for installations at sea is usually 15 days