Which class of superheater is typically suspended vertically?

The pendant type superheater is typically suspended vertically because of its design and operational characteristics. In this configuration, the superheater elements are arranged in such a way that they hang freely, allowing for efficient heat transfer from the flue gases to the steam.

This vertical orientation serves several practical purposes. First, it helps in the effective drainage of condensate from the superheated steam lines, which can prevent overheating and damage to the equipment. Second, a pendant design allows for a more compact installation, facilitating easier access for maintenance and inspection. Lastly, maintaining a vertical position can help optimize the flow of the hot gases around the tubes, maximizing the heat transfer efficiency to the steam.

In contrast, the other types of superheaters have different orientations and specific structures that do not include a vertical suspension. For example, the horizontal type is laid out horizontally, which impacts how steam and flue gases interact and flow through the system. Understanding the specific design and function of each type aids in selecting the appropriate superheater for various applications in power engineering.