A note for special issue papers from the First International Conference on Nanofluids 2019.

I Guest Editor i Graph Preface The First International Conference on Nanofluids (ICNF2019) together with the second European Symposium on Nanofluids (ESNF2019) [[1]] was held at the Universitat Jaume I, Castello, Spain, during June 26-28, 2019. Then they varied the nanoparticle concentration distribution at the inlet and found that the temperature field in the fluid and in the pipe depends strongly on the nanoparticle concentration distribution. Transmission electron microscopy (TEM) and X-ray diffractometer (XRD) were also used to characterize the synthesized nanoparticles. [Extracted from the article]