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Morteza Mehrgoo
K.N.Toosi University of Technology
DesalinationHeat recovery steam generatorWaste managementConstructal lawThermodynamics
7Publications
6H-index
98Citations
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Publications 7
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#2Tarannom Parhizkar (NTNU: Norwegian University of Science and Technology)
Last. Majid AmidpourH-Index: 31
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Abstract The Organic Rankine Cycle (ORC) is a power generation cycle similar to the conventional Rankine cycle which runs on a working fluid other than water. The selection of a working fluid is a critical part of designing an ORC system. Researchers have selected working fluids based on various performance criteria including thermal efficiency, safety, output power, and investment cost. It should be noted that working fluids are degraded over system operating lifetime, and this will affect the ...
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#1Morteza Mehrgoo (KNTU: K.N.Toosi University of Technology)H-Index: 6
#2Majid Amidpour (KNTU: K.N.Toosi University of Technology)H-Index: 31
Abstract In last two decades, there was a great deal of attention on the optimum design and performance improvement of the heat recovery steam generator (HRSG) units. In the present work, considering different objective functions and utilizing the constructal design method, three configurations of HRSG are compared. The design method is based on the constructal theory and optimization technique is carried out by varying the geometric design parameters and steam pressure levels for different valu...
8 CitationsSource
#1Morteza Mehrgoo (KNTU: K.N.Toosi University of Technology)H-Index: 6
#2Majid Amidpour (KNTU: K.N.Toosi University of Technology)H-Index: 31
Optimum design of the Heat Recovery Steam Generator (HRSG) has noticeable effects on the thermal efficiency of the combined cycle power plants. In this paper, constructal design of a dual pressure HRSG is proposed. It is shown how to simultaneously optimize the operating and geometric design parameters of the HRSG by using the constructal theory. Considering the minimum total entropy generation as objective function, optimum parameters of the HRSG unit are derived by using the genetic algorithm ...
14 CitationsSource
#1Elnaz NorouziH-Index: 5
#2Morteza MehrgooH-Index: 6
Last. Majid Amidpour (KNTU: K.N.Toosi University of Technology)H-Index: 31
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Heat recovery steam generator (HRSG) is a critically important subsystem of a combined cycle. The global objective of a HRSG is to heat the stream of water. The HRSG is composed of three major sections, including an economizer, an evaporator, and a superheater. In this study, a water tube HRSG is considered and its main design features are deduced from the minimization of the entropy generation by using the constructal theory. Entropy generation is obtained by considering all irreversibilities a...
12 CitationsSource
#1Morteza Mehrgoo (KNTU: K.N.Toosi University of Technology)H-Index: 6
#2Majid Amidpour (KNTU: K.N.Toosi University of Technology)H-Index: 31
Abstract This study shows that the main design features of a direct contact humidification–dehumidification (HD) desalination process can be determined based on the method of the constructal design. A direct contact HD unit has three main sections: the humidifier, the dehumidifier and the heat source. To analyze and optimize such unit, two flow models for air circulation are considered: natural and forced circulations. The objective is increasing the water production rate over the volume occupie...
27 CitationsSource
#1Morteza Mehrgoo (KNTU: K.N.Toosi University of Technology)H-Index: 6
#2Majid Amidpour (KNTU: K.N.Toosi University of Technology)H-Index: 31
Abstract This paper introduces a model and a structured procedure to optimize the shape and structure (relative sizes, aspect ratios) of a multi-effect humidification–dehumidification (MEH) desalination unit. The constructal approach is used for this investigation. Considering maximum production rate as the objective function, optimum design parameters of the MEH unit are derived by using the genetic algorithm method under the fixed total volume condition. The available volume is optimally distr...
20 CitationsSource
#1Morteza Mehrgoo (KNTU: K.N.Toosi University of Technology)H-Index: 6
#2Majid Amidpour (KNTU: K.N.Toosi University of Technology)H-Index: 31
Abstract In the present work, the design and analysis of a humidification–dehumidification (HD) unit is conducted by applying the concept of constructal theory proposed by Bejan. This study is an innovative design method which includes new useful data on the evaluation of geometric aspect ratio of a humidification–dehumidification desalination process. According to the constructal theory, the acquisition of geometry is the mechanism by which the global flow system achieves global flow performanc...
17 CitationsSource
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