*Proceeding Paper* **Uncovering the Cooling Potential by Water Circulation on the Hot Side of a Peltier Module †**

**Fahad Iqbal, Muhammad Naveed Gull, Hafiz Muhammad Rizwan, Daniyal Amir, Arsalan Saleem, Sami Ul Haq and Taqi Ahmad Cheema \***

> Faculty of Mechanical Engineering, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi 23460, Pakistan; u2020114@giki.edu.pk (F.I.); ngull3004@gmail.com (M.N.G.); hafiz.rizwan@giki.edu.pk (H.M.R.); u2020105@giki.edu.pk (D.A.); u2020350@giki.edu.pk (A.S.); u2020087@giki.edu.pk (S.U.H.)


**Abstract:** Thermolectric cooling offers several advantages over conventional refrigeration systems due to its light weight, environmental friendliness, silent operation, and no moving parts. In this work, a thermoelectric water cooling system is created in which water flowing at various flowrates removes heat produced on the hot side of the Peltier module. The cooling effect and coefficient of performance (COP) of the cooling system are experimentally determined at various flowrates of water on the hot side of the module. The cooling effect produced in water increases with the increase in flowrate. A similar trend is noticed for the COP of the system. The maximum cooling effect produced in water is 1363 W at 43 mL/s. The maximum COP of the system is 3.99.

**Keywords:** thermoelectric cooling; Peltier module; cooling effect; coefficient of performance
