Volume 19 (2022)
Volume 18 (2021)
Volume 17 (2020)
Volume 16 (2019)
Volume 15 (2018)
Volume 14 (2017)
Volume 13 (2016)
Volume 12 (2015)
Volume 11 (2014)
Volume 10 (2013)
Volume 9 (2012)
Volume 8 (2011)
Volume 7 (2010)
Volume 6 (2009)
Volume 5 (2008)
Volume 4 (2007)
Volume 3 (2006)
Volume 2 (2005)
Volume 1 (2004)
Investigation of air injection impact on the thermal performance of helical tube with varying helix diameter: Downward Flow

Mohammad Moaf; Omid Alizadeh; Alireza pendashteh

Volume 19, Issue 2 , June 2022


  In this experimental investigation, the heat transfer and pressure drop of helical tubes with various helical diameters have been studied considering air injections. The tube was rested in vertical form and was put under constant heat flux. The flow had a downward form and the air was injected into the ...  Read More

Conceptual Design of a Batch Process for the Production of Biodiesel from High Free Fatty Acid Feedstocks

A. Mohammadi; B. Ghobadian

Volume 19, Issue 1 , March 2022, , Pages 15-32


  A batch process was developed for the production of biodiesel from high free fatty acid feedstocks. The mixed-integer nonlinear programming (MINLP) problem, caused due to applying the hierarchical procedure together with Malone’s algorithm for the conceptual design, was solved. Meanwhile, the optimum ...  Read More

Techno-Economic Optimization of a Continuous Process for the Biodiesel Production from Waste Vegetable Oils

Abbas Mohammadi; Barat Ghobadian

Volume 18, Issue 4 , December 2021, , Pages 20-35


  A continuous process was designed and optimized at a conceptual stage for the biodiesel production from waste vegetable oils. Unlike previous studies, the process was optimized taking into account the technical and economic considerations, simultaneously, to find the optimum operating conditions fort ...  Read More

Comparison of Different Methods (Digestion, Combustion, Gasification and Pyrolysis) for Sludge Energy Recovery: A Case Study for Ekbatan’s Municipal Treatment Plant

A. Hemmati; T. Abedzadegan

Volume 16, Issue 1 , March 2019, , Pages 70-83

  Different methods of urban sewage sludge energy recovery such as burning, gasification, pyrolysis and digestion based on the net energy production efficiency, advantages and disadvantages and complexity of these processes have been investigated in this article. The best method for energy production from ...  Read More

Application of Turbo-Expander for Greenhouse Gas and Air Pollutant Emissions Reduction Using Exergy and Economical Analysis

E. GhasemiKafrudi; M. Amini; M. R. Habibi

Volume 14, Issue 4 , December 2017, , Pages 32-47

  The effects of greenhouse gases (GHG) on the growth of global warming, and increase of GHG and air pollutant emissions for energy production have forced the need of energy recovery which is normally wasted in industrial plant. The present research work focused on the GHG and air pollutant emissions reduction ...  Read More

A Comprehensive Study on a Latent Heat Thermal Energy Storage System and its Feasible Applications in Greenhouses

A. Mirahmad; S.M. Sadrameli; A. Jamekhorshid

Volume 13, Issue 2 , April 2016, , Pages 33-45

  Abstract Energy crisis is a major challenge in the current world. Latent heat thermal energy storage (LHTES) systems are known as equipment with promising performance by which thermal energy can be recovered. In the present study a comprehensive theoretical and experimental investigation is performed ...  Read More

Photocatalytic Degradation of PAHs Contaminated Soil in South Pars Economic and Energy Zone with TiO2 Nanocatalyst
Volume 4, Issue 1 , January 2007, , Pages 14-20

  Heterogeneous photocatalytic degradation of Polynuclear Aromatic Hydrocarbons (PAHs) contaminated soil in the Pars Economic and Energy Zone was carried out under laboratory conditions to evaluate the potential use of this technology for in situ remediation. Analysis of soil samples show that contaminated ...  Read More