Work

Effect of Al2O3 Nanoparticles and Span-80 as Refrigerant Additives on Improving Cooling Performance of a Refrigeration System

Year: 2026

Type: article

Abstract: This study investigates the effect of R141b-Al2O3 nanorefrigerant with mass fractions of 0.1%, 0.3%, 0.5% and 0.9% (w/w%) on the refrigeration time, energy consumption and performance coefficient of a vapor compression refrigeration system (VCRS). The effects of span80 and Tween80 surfactants on the stability of the nanorefrigerant were also investigated, and the optimum sonication time required to prepare stable nanofluids was determined. The results showed that Span-80 is more effective than Tween 80 at producing a stable nanorefrigerant. Then, the effect of span80 surfactant on the efficiency of VCRS was investigated. The results showed that upon using the nanorefrigerant, COP increased by up to 214% compared to the pure refrigerant. Furthermore, using the nanorefrigerant with a surfactant improved the performance coefficient by 52% compared to the nanorefrigerant without a surfactant.

Source: Processes

DOI: 10.3390/pr14040681

Authors: Davood Shirazi, Amir Homayoon Meghdadi Isfahani

Institution: Islamic Azad University of Najafabad

Language: English

Topic: Refrigeration and Air Conditioning Technologies

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $2,896