International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Transient Effectiveness Test of Cross Flow Air Heater Heat Exchanger

MuchammadMechanical Engineering Department, Faculty of Engineering, Diponegoro University, Jl. Prof. H. Soedarto, SH, Tembalang-Semarang 50275, IndonesiaAkmal Hafidh PurnomoMechanical Engineering Department, Faculty of Engineering, Diponegoro University, Jl. Prof. H. Soedarto, SH, Tembalang-Semarang 50275, IndonesiaBudi SetiyanaMechanical Engineering Department, Faculty of Engineering, Diponegoro University, Jl. Prof. H. Soedarto, SH, Tembalang-Semarang 50275, Indonesia

Vol 9 No 4 (2025): Volume 9, Issue 4, April 2025 | Pages: 156-160

International Research Journal of Innovations in Engineering and Technology

OPEN ACCESS | Research Article | Published Date: 25-04-2025

doi Logo doi.org/10.47001/IRJIET/2025.904023

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Abstract

The problem of high electrical energy consumption in HVAC (heating, ventilation, and air conditioning system), makes renewable energy a solution to the problem. Renewable energy sources such as solar, geothermal, and wind energy are used in reducing electrical energy consumption, which is functioned to warm the room (space heating), drying agricultural products, melting snow-filled roads, heating agricultural land (soil heating), greenhouse heating, and hot springs. heat exchanger is a heat conducting device that can transfer energy from a fluid with a hot temperature to a cold temperature fluid or vice versa which can be used in the application of drying products produced by farmers, plantations, and large or small scale fisheries. Due to the function of the heat exchanger as a room heater, an effectiveness performance test was carried out on the air heater heat exchanger research carried out at the Thermofluid Lab, Department of Mechanical Engineering, Diponegoro University. In this test, several variations of water flow rate and air speed were carried out. There are variations of water flow discharge of 5 liters/minute, 2.5 liters/minute, and 0 liters. In the variation of air velocity there are speeds of 3.6 m/s, 2.7 m/s, and 1.8 m/s. The analysis obtained in the study is that the greatest effectiveness value occurs in the variation of water flow discharge of 2.5 liters/minute with an air speed of 1.8 m/s with a maximum effectiveness value of 0.622 and a minimum of 0.521.

Keywords

air heater; effectiveness; heat exchanger; heat transfer; renewable energy


Citation of this Article

Muchammad, Akmal Hafidh Purnomo, & Budi Setiyana. (2025). Transient Effectiveness Test of Cross Flow Air Heater Heat Exchanger. International Research Journal of Innovations in Engineering and Technology - IRJIET, 9(4), 156-160. Article DOI https://doi.org/10.47001/IRJIET/2025.904023

Licence Copyright (c) 2026 International Research Journal of Innovations in Engineering and Technology creative common licence This work is licensed under Creative common Attribution Non Commercial 4.0 Internation Licence
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