*Proceeding Paper* **Design Modification and Prototype Development of a Cross-Flow Turbine for a Low/Zero-Head Water Stream †**

**Asim Ali, Muhammad Zohaib Azam, Muhammad Faiq and Ghulam Asghar \***

Mechanical Engineering Department, Capital University of Science and Technology (CUST), Islamabad 44000, Pakistan; asimaliorakzai502@gmail.com (A.A.); muhammadzohaibazam810@gmail.com (M.Z.A.); faiqr79@gmail.com (M.F.)

**\*** Correspondence: ghulam.asghar@cust.edu.pk

† Presented at the Third International Conference on Advances in Mechanical Engineering 2023 (ICAME-23), Islamabad, Pakistan, 24 August 2023.

**Abstract:** Low/zero-head cross-flow turbines (LZH-CFT) possess vast potential in the field of renewable energy technology. This research presents a modified design of a cross-flow turbine specifically engineered to harness the untapped hydro-kinetic energy from low/zero-head water resources. Unlike traditional hydro turbines, the LZH-CFT leverages a cross-flow configuration to utilize the water flows of natural streams, making it an ideal solution for flow channels with low/zero head. The design is modified through ANSYS simulations by varying the rotor's blade angles (from 0 to 90◦) and 60◦ angle is found optimum. The prototype model of modified design is prepared and tested, which represents 62.5% RPM efficiency and provides double power as compared to the typical cross-flow turbine.

**Keywords:** cross-flow turbine; low/zero head; design modification; prototype model; renewable energy
