MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202621010320 A) filed by Symbiosis International, Pune, Maharashtra, on Jan. 31, for 'micro-channel shell and tube heat exchangers.'

Inventor(s) include Vinit Soni; Sohan Patil; Akhil Rohit; Govind A Gopal; Akshay T Mathew; and Prof. Vikas Gulia.

The application for the patent was published on March 13, under issue no. 11/2026.

According to the abstract released by the Intellectual Property India: "The present subject matter to a Heat Exchanger (100) designed to achieve enhanced heat-transfer effectiveness, compactness, and reduced fluid volume. The heat exchanger (100) comprises a cylindrical shell (112) configured to enclose a plurality of tubes (104-1...n). The key feature is the tube walls (102), which are embedded with micro-channels (106). These micro-channels (106) possess a hydraulic diameter less than one millimetre and are arranged in a continuous serpentine pattern to maximize heat-transfer surface area. A first fluid (108) flows through the tubes (104-1...n), and a second fluid (110) flows within the shell (112) in a counter-flow relation. This design combines the robustness of a shell-and-tube configuration with the high efficiency provided by micro-channels (106). The heat exchanger (100) is fabricated using micro-machining techniques to achieve precise dimensional accuracy and includes optional features such as anti-fouling surface coatings on the micro-channels (106) to ensure sustained performance. The invention addresses the need for compact, highly efficient heat-exchange solutions, making it suitable for applications such as electronic cooling and automotive HVAC systems."

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