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personal data approved: 2016. VI. 30.
Personal data
name András Zachár
year of birth 1971
name of institution
doctoral school
OE Doctoral School on Safety and Security Sciences (Supervisor)
Contact details
E-mail address zachar.andrasgek.szie.hu
phone number +36 1 234-5678
Academic title
scientific degree, title Ph.D.
year degree was obtained 2003
discipline to which degree belongs mechanical engineering
institution granting the degree Szent István University
Employment
2005 - Dunaújvárosi Főiskola (research institute, not university)
other (not specified) (Főiskolai Tanár)
1994 - Szent István University, Gödöllő
other (not specified) (egyetemi docens)
Thesis topic supervisor
number of doctoral students supervised until now
number of students who fulfilled course requirements
students who obtained their degrees:
(50%) Ferenc Dániel Szlivka PhD 2016  UO-DSSS

students with degree granting in process:
(50%) Dániel Szlivka PhD (2017/12)  UO-DSSS
  Thesis topic proposals
Research
research area Heat and mass transfer, Energetics, Numerical methods
research field in which current research is conducted mechanical engineering
mathematics and computing
Publications
2013

András Zachár: Investigation of a new tube-in-tube helical flow distributor design to improve temperature stratification inside hot water storage tanks operated with coiled-tube heat exchangers, INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 63: pp. 150-161.
type of document: Journal paper/Article
impact factor: 2.315*
language: English
URL 
2012

Zachár András: Természetes konvekció által indukálódott külső oldali hőtranszport intenzitás vizsgálata spirális hőcserélők esetén, MAGYAR ENERGETIKA 19: (3) pp. 44-47.
type of document: Journal paper/Article
language: Hungarian
2012

A. Zachár: Investigation of natural convection induced outer side heat transfer rate of coiled-tube heat exchangers, INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 55: (25-26) pp. 7892-7901.
type of document: Journal paper/Article
impact factor: 2.315
language: English
2010

Zachar A: Analysis of coiled-tube heat exchangers to improve heat transfer rate with spirally corrugated wall, INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 53: (19-20) pp. 3928-3939.
type of document: Journal paper/Article
impact factor: 1.898
number of independent citations: 22
language: English
DOI 
2010

Zachár András: Spirális hőcserélők termohidraulikai folyamatainak vizsgálata, MAGYAR ENERGETIKA 17: (7-8) pp. 32-34.
type of document: Journal paper/Article
language: Hungarian
2008

I Szabó, A. Zachár: Numerical Modelling of the Impact of the Tow Angle and The Tow Velocity for the Total Drag of Plough, MECHANICAL ENGINEERING LETTERS: R&D : RESEARCH & DEVELOPMENT 1: (1) pp. 174-186.
type of document: Journal paper/Article
language: English
Full text 
2007

Zachar A, Aszodi A: Numerical analysis of flow distributors to improve temperature stratification in storage tanks, NUMERICAL HEAT TRANSFER PART A-APPLICATIONS 51: (10) pp. 919-940.
type of document: Journal paper/Article
impact factor: 1.325
number of independent citations: 2
language: English
DOI 
2004

Zachár András: Melegvíz-tároló hőmérsékleti rétegződésének vizsgálata alsó és felső beáramlási feltételek mellett, MEZŐGAZDASÁGI TECHNIKA 45: (4) pp. 2-3.
type of document: Journal paper/Article
language: Hungarian
2003

Zachar A, Farkas I, Szlivka F: Numerical analyses of the impact of plates for thermal stratification inside a storage tank with upper and lower inlet flows, SOLAR ENERGY 74: (4) pp. 287-302.
type of document: Journal paper/Review paper
impact factor: 1.108
number of independent citations: 28
language: English
DOI 
1998

Zachar A: Comparison of transformations from nonkinetic to kinetic models, ACH-MODELS IN CHEMISTRY 135: (3) pp. 425-434.
type of document: Journal paper/Article
impact factor: 0.375
number of independent citations: 2
language: English
Number of independent citations to these publications:54 
Scientometric data
list of publications and citations
number of scientific publications that meet accreditation criteria:
29
number of scientific publications:
35
monographs and professional books:
0
monographs/books in which chapters/sections were contributed:
0 
art/engineering creative works:
0
scientific publications published abroad that meet the accreditation criteria:
14
publications not in Hungarian, published in Hungary, meeting the accreditation criteria:
5
number of independent citations to scientific publications and creative works:
113

 
All rights reserved © 2007, Hungarian Doctoral Council. Doctoral Council registration number at commissioner for data protection: 02003/0001. Program version: 1.2318 ( 2016. XI. 26. )