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Boilers are heat exchange devices used to generate steam by transferring heat from fuel to water. Based on the arrangement of tubes, boilers are broadly classified into straight tube boilers and bent tube boilers. These two types differ in construction, performance, and application. A straight tube boiler consists of straight tubes connecting the water drum and steam drum. The tubes are usually arranged either horizontally or slightly inclined, allowing water and steam to circulate naturally. Hot gases flow over or around these tubes, transferring heat to the water inside. Examples of straight tube ______ ________ ___ ________ ____ ___ _______ _____ ___ _______.
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