Hasan Kayhan Kayadelen

Hasan Kayhan Kayadelen
Yildiz Technical University · Department of Marine Engineering Operations

PhD.

About

27
Publications
66,730
Reads
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309
Citations
Citations since 2016
12 Research Items
259 Citations
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201620172018201920202021202201020304050
Introduction
Hasan Kayhan Kayadelen currently works at the Department of Marine Engineering Operations, Yildiz Technical University. Hasan does research in Aerospace Engineering, Automotive Engineering and Mechanical Engineering. Their current project is 'A practical expression for estimation of adiabatic flame temperature of hydrocarbon fuels at different initial conditions'.
Additional affiliations
October 2014 - October 2018
Yildiz Technical University
Position
  • Professor (Assistant)
May 2012 - May 2013
Princeton University
Position
  • Research Collaborator
February 2009 - present
Yildiz Technical University
Position
  • Professor (Associate)
Education
May 2012 - May 2013
Princeton University
Field of study
  • Combustion Engineering
February 2008 - March 2009
Yildiz Technical University
Field of study
  • Naval Architecture and Marine Engineering

Publications

Publications (27)
Chapter
Full-text available
Chapter 19 - Thermodynamic Properties of Engine Exhaust Gas for Different Kinds of Fuels Engine performance highly depends on the thermodynamic properties of the working fluid involved in different processes of engine cycles. However, as engines run with broad range of fuels and fuel air/ratios it is usually not possible to reach thermodynamic tab...
Article
Inter-stage turbine reheat is an effective gas turbine retrofit which can easily be used with simple and steam injected (SI) gas turbines as well. Although reheat provides higher inlet temperatures for HRSG in SI cycles and also increases net work output significantly, reheat combustor increases fuel consumption and thermal efficiency may still dec...
Article
Full-text available
Carbon capture and storage and oxy-fuel combustion have recently become more significant due to global warming as well as green energy solutions. Oxy-combustion power plants fueled with natural gas are compatible with today's clean energy policies. In this study, effects of oxygen content of reactant mixtures used in oxy-combustion on thermodynamic...
Conference Paper
Full-text available
Emissions, especially NOx, released from diesel engines used must be decreased because emissions have many bad effects on the environment. One of the known methods for reduction NOx emissions is to applying Miller Cycle to a diesel engine. In this study, Miller cycle is carried out by lowering the compression ratio according to the expansion ratio...
Article
Full-text available
Low‐technology cycle modifications available for improving gas turbine performance are still largely unexploited. Among those proven modifications, steam injection is found to be the most effective in boosting both the output capacity and thermal efficiency while reducing NOx emissions. It further improves part load performance under varying ambien...
Article
This study introduces a new multi-featured equilibrium combustion model for fuels, fuel blends and surrogates which estimates mole fractions, adiabatic flame temperature and thermodynamic properties of the equilibrium combustion products. The model enables simultaneous consideration of unlimited number of CαHβOγNδ type fuels of different ratios and...
Article
It is a known fact that the composition of natural gas varies widely from source to source and from time to time even in the same source. Such variations in gas composition cause variations in flame temperature, its combustion products and thermodynamic properties which can affect gas-fueled engine performance and its emissions. The purpose of this...
Article
Regeneration and steam injection are both well proven as well as promising modifications which can boost power, increase thermal efficiency, part load performance and limit NOx emissions. However, their benefits are still largely unexploited. To investigate these modifications, a comprehensive but practical model is established as an essential impr...
Article
Full-text available
Global demand for electricity is growing every year. Gas turbines are indicated to be one of the cleanest options running on fossil fuels to meet this growing demand. Apart from utility power generation, they are dominating the aviation industry and also being used in maritime industry as prime movers because of their characteristic advantages such...
Conference Paper
Full-text available
In this study, a two zone combustion model for second law analysis of a four stroke spark ignition engine has been developed and the cycle has been simulated with most common fuels including hydrogen and renewable fuels like ethanol, methanol and toluene. Results are presented for various cycle parameters and exergy destruction rate for each fuel h...
Thesis
Full-text available
Rapidly growing demand for gas turbines promotes research on their performance improvement and reducing their exhaust pollutants. Even small increments in net work or cycle efficiency and small changes in pollutant emissions have become significant concerns for both new designs and cycle modifications. To fulfill these requirements an accurate perf...
Conference Paper
Full-text available
Engine performance highly depends on the thermodynamic properties of the working fluid involved in different processes of engine cycles. However, as engines run with broad range of fuels and fuel air/ratios it is usually not possible to reach thermodynamic tables of products of combustion in the exhaust gas content for a specific fuel/air ratio and...
Article
Full-text available
Emissions, especially NOx, released from diesel engines must be decreased to limit values described by the regulations because emissions have many bad effects on the environment. One of the known methods for reduction NOx emissions is to apply Miller Cycle to a diesel engine. In this study, Miller cycle is carried out by lowering the compression ra...
Conference Paper
Full-text available
Gas turbine engines offer a wide range of power in relatively small sizes and are used in a variety of power generation purposes including marine applications. This paper discusses about advantages of gas turbines and gas turbine systems in marine industry. It puts forward economic, performance related and environmental benefits of employing gas tu...
Conference Paper
Full-text available
Water and steam injection at the upstream or in the combustion chamber are both well proven methods for reducing NO x emissions and improving performance in gas turbine engines. In this study a computer program is presented which is capable of analyzing steam or water injected gas turbine cycles considering thermoeconomic and environmental aspects...
Article
Full-text available
The objective of this study is to analyse the effects of heat transfer loss and internal irreversibilites, resulting from adiabatic processes, on an irreversible diesel heat engine. Thermodynamic optimisation has been carried out based on the Maximum Power (MP), Maximum Thermal Efficiency (MEF) and Maximum mean Effective Pressure (MEP) criteria for...
Article
Full-text available
This paper reports thermodynamic optimisations based on the maximum net cycle work and the maximum thermal efficiency criteria for an irreversible single and double reheat Rankine cycle, which includes the internal irreversibilities resulting from the adiabatic processes. The study encompasses the effects of boiler pressure and temperature on the g...
Conference Paper
Full-text available
Exhaust emissions have many detrimental effects on the human beings and the environment. Therefore, emissions released from diesel engines used in the present day land and sea vehicles are limited gradually. MARPOL (International Convention for the Prevention of Pollution from Ships) determines the limit values of ship sourced pollutants define lim...
Thesis
Full-text available
Industry worldwide is losing billions of dollars a year due to misalignment of machinery. The heart and soul of virtually every industrial operation pivots on keeping rotating machinery in good working order. The primary objective of accurate alignment is to increase the operating life span of rotating machinery. To achieve this goal, machinery co...

Questions

Questions (2)
Question
For a low budget project, I need a setup to determine the adiabatic flame temperatures of fuel mixtures at varying equivalence ratios, unburned temperatures and under varying pressures. What kind of setup do you recommend please?
Question
For an equilibrium calculation, which one should be taken as the dissociation reaction of HO2?
O2+0.5H2-->HO2
or O2 +H-->HO2
or O+OH-->HO2?
Additionally, I see some reearchers took H2O+0.5N2-->H2+NO for NO formation while others took 0.5N2+0.5O2-->NO.
How do you determine which reaction to be considered to obtain the equilibrium mole fractions of high tempreature combustion.

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Projects

Project (1)
Project
The aim of the project is to establish a practical mathematical model to estimate adiabatic flame temperature for different initial unburned mixtures and mixture conditions with experimental verification.