Dr. Mohammad Zarein
Microwave-Mechatronics-Energy-Post harvest Technology Energy Conservation and Environment, Renewable Energy and Alternative Technologies, Food Science and Technology, Mathematical Biosciences Microwave Mechatronics Energy Post harvest Technology Energy Conservation and Environment Renewable Energy and Alternative Technologies Food Science and Technology Mathematical Biosciences Food Drying and Modeling Photovoltaic thermal hybrid solar collector Microwave applications Thermal engineering Microwave engineering Biofuel production and bioconversion Heat transfer enhancement Solar thermal collector Enhanced heat transfer Thermal conductivity measurement Thermal science Microwave power Noise measurement Nanofluids in solar collectors Biomedical Engineering Discrete Mathematics and Combinatorics Food Science

Bio

Dr. Mohammad Zarein is a distinguished researcher in the field of agricultural machinery engineering, specializing in microwave drying, energy efficiency, and postharvest technology. He is affiliated with the Mechanics of Agricultural Machinery Engineering Department at Tarbiat Modares University (TMU) in Tehran, Iran. With a Ph.D. in his field, Dr. Zarein has made significant contributions to the understanding of microwave drying kinetics and energy efficiency in food processing. He has published 21 works, accumulating over 473 citations, with an h-index of 8 and an i10-index of 7. His research has been supported by grants from the Iran National Science Foundation. Dr. Zarein also serves as a reviewer for several international journals. His work is widely recognized, and he maintains an active presence on academic platforms such as ORCID, Scopus, and Google Scholar.

Educational Journey

Ph.D.

Experience

0 - Present

Grants and Awards

GRANT

Development of an intelligent system to determine the authenticity of edible oils using microwave dielectric properties

Iran National Science Foundation

2022

Research

Investigation of Microwave Power Effects on Drying Kinetics and Energy Efficiency of Banana Samples

Article June 6, 2015

The banana samples were dried in a laboratory scale microwave oven at different powers of 200, 300, 400 and 500 W. The results showed that microwave power significantly influenced the total heating time and energy efficiency of drying processing. In this study, the measured moisture ratio (MR) values were fitted and compared with predicted values obtained from Midilli’s thin layer drying semi-empirical equation. Highest value of R2 and the lowest values of χ2 and RMSE for banana samples at different powers are obtained as 0.9999, 1.6618×10-5 and 0.0043 respectively. Also, within the range of microwave power values, 200–500 W, effective moisture diffusivities were found to be 1.4×10-5 to 5.52×10-5 m2/min. The microwave power dependence of the effective diffusivity coefficient followed an Arrhenius-type relationship. The activation energy for the moisture diffusion was determined to be 11.2 W/g. Increasing the microwave power resulted in a considerable increase in average energy efficiency and it was in the range of 8.8 to 39%.

Effects of Zinc and Nitrogen on Yield Components of Five Flax Genotypes

Article August 3, 2013

Flax is one of the earliest plants that has been domesticated by humans. Due to high amounts of omega-3 fatty acid, its cultivation and consumption is increasing as a healthy oil resource. In nutritional point of physiology zinc and nitrogen are two important elements in plant biosynthesis. So in this experiment, effects of three levels of nitrogen (40, 60 and 80 kg/ha) and two levels of zinc sulfate (control and 3/1000) on five flax cultivars in split factorial based on randomized complete block design was investigated. The results showed that genotypes in terms of height, capsul number, seed yield and biological yield revealed significant differences (P􀂔􀀓􀀑􀀓􀀔􀀌􀀑􀀃􀀬􀁑􀀃􀁄􀁇􀁇􀁌􀁗􀁌􀁒􀁑􀀃􀁗􀁋􀁈􀀃􀁕􀁈􀁖􀁘􀁏􀁗􀁖􀀃􀁖􀁋􀁒􀁚􀁈􀁇􀀃􀁗􀁋􀁄􀁗􀀃􀁗􀁋􀁈􀀃􀁋􀁌􀁊􀁋􀁈􀁖􀁗􀀃􀁜􀁌􀁈􀁏􀁇􀀃􀁚􀁄􀁖􀀃􀁒􀁅􀁗􀁄􀁌􀁑􀁈􀁇􀀃􀁉􀁕􀁒􀁐􀀃􀁗􀁕􀁈􀁄􀁗􀁐􀁈􀁑􀁗􀀃􀁒􀁉􀀃􀀛􀀓􀀃 kg nitrogen and (3/1000) zinc sulfate spray.

Mathematical Modeling of Dried Banana Slices with MCHP Dryer

Article July 2, 2013

In this research work, the waste heat of exhaust gas of an engine-generator for the process of banana slices drying was used and tested. Drying experiments were conducted at different engine loads (25%, 50%, 75% and full load) and thickness of the samples (3, 5 and 7 mm). At load 25%, 50%, 75% and full load the temperatures produced in drying chamber was 50, 60, 70 and 80 ℃ respectively. The experiments were done at air velocity 0.5 m/s. Three drying models were fitted to the experimental data of moisture ratio in order to assess a suitable form of the drying curve for banana drying. For banana with 3 (mm) thickness page model offering maximum average value of EF and minimum average value of RMSE and χ2 namely 0.99745, 0.01473875 and 0.000208443 and for banana slice with thickness of 5 and 7 (mm) Logarithmic model offering maximum average value of EF and minimum average value of RMSE and χ2 namely 0.9966, 0.01472 and 0.00022 respectively.