The influence of using biodiesel fuels on the hydraulic behavior of a solenoid operated common rail injection system has been explored by means of a one-dimensional model. This model has been previously obtained, including a complete characterization of the different components of the injector (mainly the nozzle, the injector holder and the electrovalve), and extensively validated by means of mass flow rate results under different conditions. After that, both single and multiple injection strategies have been analyzed, using a standard diesel fuel and rapeseed methyl ester (RME) as working fluids. Single long injections allowed the characterization of the hydraulic delay of the injector, the needle dynamics and the discharge capability of the couple injector-nozzle for the two fuels considered. Meanwhile, the effect of biodiesel on main plus post injection strategies has been evaluated in several aspects, such as the separation of the two injections or the effect of the main injection on the post injection fueling. Finally, a modification in the injector hardware has been proposed in order to have similar performances using biodiesel as the original injector configuration using standard diesel fuel. ; ‘‘Vicerrectorado de Investigación, Desarrollo e Innovación’’ of the ‘‘Universidad Politécnica de Valencia’’ in the frame of the project ‘‘Estudio numérico de la cavitación en toberas de inyección Diesel mediante Grid Computing (Cavigrid)’’, Reference No. 2597 ; ‘‘Ministerio de Ciencia e Innovación’’ in the frame of the Project ‘‘Estudio teórico experimental sobre la influencia del tipo de combustible en los procesos de atomización y evaporación del chorro Diesel (PROFUEL)’’, Reference No. TRA2011-26293 ; Salvador Rubio, FJ.; Gimeno García, J.; Morena Borja, JDL.; Carreres Talens, M. (2012). Using one-dimensional modeling to analyze the influence of the use of biodiesels on the dynamic behavior of solenoid-operated injectors in common rail systems: Results of the simulations and discussion. Energy Conversion and Management. 54(1):122-132. doi:10.1016/j.enconman.2011.10.007. ; Senia ; 122 ; 132 ; 54 ; 1