Which heat exchanger consists of a stack of flat, oblong plate-type tubes connected in parallel with the oil supply?

• A. Harrison plate-type
• B. Shell and Tube
• C. Plate Type
• D. Mesh Plate-Type

Answer: (A)

The key idea is recognizing a plate-type heat exchanger, specifically a Harrison plate-type design, which uses a stack of flat, oblong plates that create parallel flow channels for the oil. In this arrangement the oil is supplied to multiple narrow, parallel channels formed by the stacked plates, allowing heat to transfer efficiently as it flows across the plate surfaces. This differs from shell-and-tube, which uses tubes inside a shell rather than stacked flat plates; the general plate-type category could include other geometries, but the description of flat, oblong plates in parallel with the oil points to the Harrison plate-type configuration. Mesh plate-type would involve a mesh or perforated plate structure, not flat oblong plates arranged in parallel channels.