Nallamothu, R.B., Nallamothu, A.K., Nallamothu, S.K., Injeti, N.K. and Basava, V.A.R. 2019. Effect of dwell period between main and pre injection on NOx and smoke emission from CRDI diesel engine fueled with Biodiesel blend. Ethiopian Journal of Science and Sustainable Development. 5, 2 (Feb. 2019), 105 - 114. DOI:https://doi.org/10.20372/ejssdastu:v5.i2.2018.30.