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In this study, a two-dimensional modelling of an air-to-air heat exchanger including heat pipe was generated and the effect of nanofluid usage on heat transfer performance was investigated numerically. The results were compared with the experimental data, and the relationship between the results of the analysis program and the real data was revealed. Fluids used in the study are pure water, CuO/Pure water and CuO + Fe/Pure water nanofluids. According to the numerical analysis, the highest efficiency value obtained was 25.8% when CuO + Fe/Pure water nanofluid was used. This value was reached when the hot and cold Reynolds numbers were 16600 and 7000, respectively. In addition, it was seen that the numerically obtained efficiency values were higher than the experimental data for all conditions. The differences in average efficiency values between the two analyses were 6.7%, 8.5% and 7.7% for pure water, CuO/Pure water and Fe + CuO/Pure water nanofluids, respectively.

Numerical analysis of an air-to-air heat pipe heat exchanger and comparison with experimental data