Ayat Gharehghani, MM. Salahi, V. Esfahanian,  A.M. Andwari, A. Salavati-Zadeh “Operating Range Extension of a Natural Gas Fueled PCCI Engine using Ozone”. Proceedings of the ۱۰^th International Conference on Internal Combustion Engines& Oil, February۰۳-۰۵, ۲۱۰۸, Research Institute of Petroleum Industry, Tehran, Iran. Paper Number: ۱۰۶۹

Ayat Gharehghani, B. Bahri,  M. Mirsalim, “Performance and combustion parameters investigation in RCCI engine using response surface methodology”. Proceedings of the ۱۰^th International Conference on Internal Combustion Engines& Oil, February۰۳-۰۵, ۲۱۰۸, Research Institute of Petroleum Industry, Tehran, Iran. Paper Number: ۱۱۲۸

A. Gharehghani, S.M. Mirsalim, S.A. Jazayer,  R. Hoseini, “Experimental study on low temperature combustion dual fuel biodiesel/natural gas engine”. ASME ۲۰۱۵, Internal combustion engine division, ICEF۲۰۱۵-۱۰۰۶

A. Gharehghani, S.M. Mirsalim, R. Hoseini , S.A. Jazayer,  Reactivity controlled compression ignition (RCCI) combustion strategy: a solution to reduce fuel consumption and emission levels. Proceedings of the ۸-th International Conference on Internal Combustion Engines November ۱۹-۲۱, ۲۰۱۳, Research Institute of Petroleum Industry, Tehran, Iran ICICE-۸, article A-۱۰-۹۳-۵

A. yousefi, A. Gharehghani, S.M. Mirsalim, Study of Natural Gas/DME homogeneous charge compression ignition with use of multi- dimensional CFD model and detailed chemical kinetics. Proceedings of the ۸-th International Conference on Internal Combustion Engines November ۱۹-۲۱, ۲۰۱۳, Research Institute of Petroleum Industry, Tehran, Iran ICICE-۸, article A-۱۰-۹۴-۳

A. Gharehghani, R. Hoseini, S.M. Mirsalim, “Investigation of the effect of natural-gas composition on heavy-duty SI engine combustion characteristic”, ASME۲۰۱۲, Internal combustion engine division, ICES۲۰۱۲-۸۱۰۳۵

A. Gharehghani, A. Rahimi, “Combustion modeling in burner to simulate the catalyst aging condition”, ۷^th  International Conference on Internal Combustion Engines, Tehran, Iran, ۲۰۱۱, IICE-۷-A-۱۰-۹۴-۲

A. Gharehghani, M.H. Askari, S.A. Jazayeri, “Homogeneous Charge Compression Ignition (HCCI) Combustion Using Different PRF Mixtures with Detail Chemical Mechanism”, ASME ۲۰۱۱, IMECE۲۰۱۱-۶۳۹۷۹

A. Gharehghani, S.A. Jazayeri , S.M. Mirsalim, M.ghanbari, “ Numerical and Experimental Investigation on Performance of Dual Fuel D۸۷ Engine”, ASME ۲۰۱۰, IMECE۲۰۱۰-۳۷۹۲۸

A. Gharehghani, R. Hoseini, M.M. Salahi,  EXPERIMENTAL INVESTIGATION OF NATURAL CONVECTIVE HEAT TRANSFER FROM HORIZENTAL, INCLINED AND VERTICAL CYLINDER WITH CONSTANT HEAT FLUX, ASME ۲۰۱۰, IMECE۲۰۱۰-۳۷۹۰۳

A. Gharehghani, S.M. Mirsalim, S.A. Jazayeri, “Numerical investigation of Flow Field and combustion characteristics of D۸۷ dual fuel engine “, SAE Paper, No. ۲۰۱۰-۰۱-۰۴۸۰ (http://www.sae.org/search?searchfield=gharehghani )

A. Gharehghani, M. Ghanbari, S.M. Mirsalim, S.A. Jazayeri , “ Numerical Simulation of a New Dual Fuel (Diesel-Gas) D۸۷ Engine with Multi-Dimensional CFD Model“, CIMAC Congress ۲۰۱۰, Bergen, CIMAC Paper No.۲۳۳ (http://www.cimac.com/congress_۲۰۱۰/congress_۲۰۱۰.htm )

A. Gharehghani A, H. Rahimzadeh. , “Experimental Investigation And Design of a Solar Desalination Unit Which Work With Humidification –Dehumidification Process”, ۶^th International Conferences On Heat Transfer, Fluid Mechanics and Thermodynamics, ۳۰June to ۲July ۲۰۰۸, Pretoria , South Africa

A. Gharehghani, S. M. Mirsalim, “Methods for Reducing the Nitrogen Oxide (NOx) Emission in Diesel Engines (Review Paper)”, Fifth International Conference on Internal Combustion Engines, Tehran, Iran, ۲۰۰۷, Paper No. IPCO۵-۸

A. Gharehghani, S. M. Mirsalim, “New Technologies for Reducing the Emission and Fuel Consuming in Internal Combustion Engines”, Fifth International Conference on Internal Combustion Engines, Tehran, Iran, ۲۰۰۷, Paper No. IPCO۵-۳۱

A. Gharehghani, M. Jafarabadi, S.M. Mirsalim, S.A. Jazayeri, “ Numerical investigation of Fluid Flow of D۸۷ dual fuel engine using  KIVA۳-V۲“, Sixth International Conference on Internal Combustion Engines, Tehran, Iran, ۲۰۰۹

Ghareghani. A., Rahimzade. H., Rafee. R., “Solar Desalination With Humidification And Dehumidification Of Air” , ۱۵^th International Conferences of Mechanics, ISME ۲۰۰۷,Tehran, Iran

A. Gharehghani, M. Mottahedi, M.  J.  Kermani, “Investigation and analysis of exerted forces to the Exhaust ‘Diffuser’ of Gas Turbine V۹۴.۲ (fabricated in ‘TUGA’ company)” , Recent Advances In Fluid Mechanics, ۳^rd-۶^th Mach ۲۰۰۸, Andhara Pradesh, India

M. Mottahedi, A.Gharehghani, M. J.  Kermani,” Analysis and investigation of exerted forces to the ‘Air intake’ of Gas Turbine V۹۴.۲ (fabricated in ‘TUGA’ company)”, Recent Advances In Fluid Mechanics, ۳^rd-۶^th Mach ۲۰۰۸, Andhara Pradesh, India

A. Ghareghani, H. Rahimzadeh, “Experimental Analysis of Solar Desalination Process”, Conference on Sea Water Desalination, Jahad Kheshanvarzi, Tehran, Iran ۲۰۰۸