The Effects of Nanofluid (Al2O3/De-ionized Water) with Different Concentrations in Improving the Transportation of heat in Small Space

[摘要] An experimental study on forced convective heat transfer and flow thermophysical properties of a nanofluid consisting of three various concentrations of Al2O3 nanofluids (0.13, 0.25 and 0.64%) vol.% and deionized water which flows in a cooling coil made of copper pipe (heat exchanger) under laminar flow conditions are investigated. The Al2O3 nanoparticles of 90 nm diameter are used in this study. Working fluid flow rate of 0.5 L/min to have the fully laminar regime (1320.42O3/deionized water nanofluid when concentration 0.64 vol.% is slightly higher than that of the deionized water alone at same conditions (inlet temperature and mass flow).

[发布机构] School of Mechatronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, Perlis, Arau; 02600, Malaysia^1;Seiyun Community College, Department Air-Conditioning, Hadhramoot, Yemen^2;Institute of Nano Electronic Engineering, University Malaysia Perlis, Seriab, Kangar, Perlis; 01000, Malaysia^3;School of Manufacturing Engineering, University Malaysia Perlis, Pauh Putra Campus, Perlis, Arau; 02600, Malaysia^4

[效力级别] 工业技术 [学科分类] 工业工程学

[关键词] Cooling coils;Forced convective heat transfer;Inlet temperature;Laminar flow conditions;Laminar regime;Mass flow;Nanofluids;Working-fluid flow