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Heydar Maddah

Researcher at Islamic Azad University, Arak

Publications -  28
Citations -  636

Heydar Maddah is an academic researcher from Islamic Azad University, Arak. The author has contributed to research in topics: Nanofluid & Heat transfer. The author has an hindex of 13, co-authored 26 publications receiving 431 citations. Previous affiliations of Heydar Maddah include Islamic Azad University & Energy Institute.

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Experimental study of Al2O3/water nanofluid turbulent heat transfer enhancement in the horizontal double pipes fitted with modified twisted tapes

Heydar Maddah, +5 more
- 01 Nov 2014 - 
TL;DR: In this article, the Nusselt number, friction factor and thermal performance factor of a double-pipe heat exchanger with modified twisted tapes and nanofluid were investigated under turbulent flow conditions.
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Synthesis and characterization of maghemite nanopowders by chemical precipitation method

Mousa Nazari, +4 more
- 03 Apr 2014 - 
TL;DR: In this paper, the particle size of the Maghemite nanoparticles was below 20 nm confirmed by transmission electron microscopy image, and the particle shape was almost a sphere confirmed by the transmission electron microscope.
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Development and thermal performance of nanoencapsulated PCM/ plaster wallboard for thermal energy storage in buildings

Behzad Maleki, +5 more
- 01 Nov 2020 - 
TL;DR: In this article, the phase change material (NPCM) is integrated in building envelope to decrease the energy requirement for maintaining thermal comfort by enhancing the thermal energy storage of the wall and the roof.
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Thermodynamic analyses of different scenarios in a CCHP system with micro turbine – Absorption chiller, and heat exchanger

Mojtaba Mirzaee, +6 more
- 15 Oct 2019 - 
TL;DR: In this paper, a cogeneration system that includes a gas turbine, absorption chillers, boilers, and heat exchangers is modeled in EES software, and the system is studied in multiple scenarios.
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Heat Transfer of Nanofluid in a Double Pipe Heat Exchanger

Reza Aghayari, +4 more
- 10 Nov 2014 - 
TL;DR: Comparison of experimental results with valid theoretical data based on semiempirical equations shows an acceptable agreement and it has been observed that the heat transfer coefficient increases with the operating temperature and concentration of nanoparticles.