Publications & Works

Publication Network
Published journal articles indexed by SCI, SSCI, and AHCI

Modelling of human thermal comfort in armored military vehicles: An experimental study of removing heat with spot cooling

Dibek B., Ağra Ö.
Thermal Science and Engineering Progress , vol.49, pp.1-11, 2024 (SCI-Expanded)

Numerical and experimental examinations of free convection condensation of steam in the presence of air over the cooled panel

Koca A., Atayılmaz Ş. Ö., Ağra Ö.
ENERGY AND BUILDINGS , vol.269, pp.1-19, 2022 (SCI-Expanded)

Investigation of heat transfer in tandem and staggered arrangement of wires on single layer wire-on-tube condensers in cross-flow

Gönül A., Ağra Ö.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER , vol.158, 2020 (SCI-Expanded) identifier identifier

Experimental and numerical investigation of air-side forced convection on wire-on-tube condensers

GÖNÜL A., AĞRA Ö., ATAYILMAZ Ş. Ö., DEMİR H., SEVİNDİR M. K., TEKE İ.
International Journal of Thermal Sciences , vol.151, 2020 (SCI-Expanded) identifier identifier

Experimental and numerical investigation of ground heat exchangers in the building foundation

Kayaci N., Demir H., Kanbur B. B., Atayılmaz Ş. Ö., Ağra Ö., Acet R. C., et al.
ENERGY CONVERSION AND MANAGEMENT , vol.188, pp.162-176, 2019 (SCI-Expanded) identifier identifier

Natural convection heat transfer from horizontal concentric and eccentric cylinder systems cooling in the ambient air and determination of inner cylinder location

ATAYILMAZ Ş. Ö., DEMİR H., SEVİNDİR M. K., AĞRA Ö., Teke İ., DALKILIÇ A. S.
Heat and Mass Transfer/Waerme- und Stoffuebertragung , vol.53, no.8, pp.2677-2692, 2017 (SCI-Expanded) identifier identifier

Modelling the optimum distribution of insulation material

SEVİNDİR M. K., DEMİR H., AĞRA Ö., ATAYILMAZ Ş. Ö., Teke İ.
Renewable Energy , vol.113, pp.74-84, 2017 (SCI-Expanded) identifier identifier

EVALUATION OF DRYING KINETICS OF SLURRED CERAMIC RAW MATERIALS

AĞRA Ö., GÖNÜL A.
ISI BILIMI VE TEKNIGI DERGISI-JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY , vol.37, no.1, pp.45-52, 2017 (SCI-Expanded) identifier identifier

Experimental investigation of heat transfer and dehumidifying performance of novel condensing panel

KOCA A., ATAYILMAZ Ş. Ö., AĞRA Ö.
Energy and Buildings , vol.129, pp.120-137, 2016 (SCI-Expanded) identifier identifier

Optimum distribution of thermal insulation material for constant insulation material volume or a given investment cost

DEMİR H., SEVİNDİR M. K., AĞRA Ö., ATAYILMAZ Ş. Ö., Teke I.
JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY , vol.7, no.6, 2015 (SCI-Expanded) identifier identifier

Heat capacity ratio and the best type of heat exchanger for geothermal water providing maximum heat transfer

AĞRA Ö., ERDEM H. H., DEMİR H., ATAYILMAZ Ş. Ö., Teke I.
ENERGY , vol.90, pp.1563-1568, 2015 (SCI-Expanded) identifier identifier

Sizing, selection, and comparison of heat exchangers considering the lowest saving-investment ratio corresponding to the area at the tag end of the heat exchanger

Teke I., AĞRA Ö., DEMİR H., ATAYILMAZ Ş. Ö.
Energy , vol.78, pp.114-121, 2014 (SCI-Expanded) identifier identifier

Investigation of the effects of geometrical parameters on heat transfer from buried finned pipes

DEMİR H., KOYUN A., ATAYILMAZ Ş. Ö., AĞRA Ö., DALKILIÇ A. S.
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY , vol.27, no.8, pp.2497-2506, 2013 (SCI-Expanded) identifier identifier

A correlation development for predicting the pressure drop of various refrigerants during condensation and evaporation in horizontal smooth and micro-fin tubes

Balcilar M., DALKILIÇ A. S., AĞRA Ö., ATAYILMAZ Ş. Ö., WONGWISES S.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER , vol.39, no.7, pp.937-944, 2012 (SCI-Expanded) identifier identifier

DETERMINATION OF THE HEAT TRANSFER COEFFICIENT DURING ANNULAR FLOW CONDENSATION IN SMOOTH HORIZONTAL TUBES

AĞRA Ö., TEKE İ.
ISI BILIMI VE TEKNIGI DERGISI-JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY , vol.32, no.2, pp.151-159, 2012 (SCI-Expanded) identifier identifier

Numerical investigation of heat transfer and pressure drop in enhanced tubes

AĞRA Ö., Demir H., ATAYILMAZ Ş. Ö., Kantaş F., DALKILIÇ A. S.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER , vol.38, no.10, pp.1384-1391, 2011 (SCI-Expanded) identifier identifier

Sizing and selection of heat exchanger at defined saving investment ratio

AĞRA Ö.
Applied Thermal Engineering , vol.31, pp.727-734, 2010 (SCI-Expanded)

Determining the best type of heat exchangers for heat recovery

TEKE İ., AĞRA Ö., ATAYILMAZ Ş. Ö., DEMİR H.
APPLIED THERMAL ENGINEERING , vol.30, pp.577-583, 2010 (SCI-Expanded) identifier identifier

Comparison of frictional pressure drop models during annular flow condensation of R600a in a horizontal tube at low mass flux and of R134a in a vertical tube at high mass flux

DALKILIÇ A. S., AĞRA Ö., Teke I., Wongwises S.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER , vol.53, pp.2052-2064, 2010 (SCI-Expanded) identifier identifier

Application of artificial neural networks for prediction of natural convection from a heated horizontal cylinder

ATAYILMAZ Ş. Ö., DEMİR H., AĞRA Ö.
International Communications in Heat and Mass Transfer , vol.37, no.1, pp.68-73, 2010 (SCI-Expanded) identifier identifier

Generalized neural network model of alternative refrigerant (R600a) inside a smooth tube

DEMİR H., AĞRA Ö., ATAYILMAZ Ş. Ö.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER , vol.36, no.7, pp.744-749, 2009 (SCI-Expanded) identifier identifier

Experimental İnvestigation of Condensation of Hydrocarbon Refrigerants(R600A) in a Horizontal Smooth Tube

AĞRA Ö.
International Communications in Heat and Mass Transfer , vol.35, no.9, pp.1165-1171, 2008 (SCI-Expanded)
Articles Published in Other Journals

Experimental Investigation of the Water Droplet Evaporation on Inclined Surfaces by Taguchi and ANOVA Optimization Analysis

Yıldırım A., Ağra Ö., Sevindir M. K.
JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS , vol.16, pp.1-10, 2024 (Peer-Reviewed Journal)

Fuel Cell Cogeneration Application in Commercial Buildings: A Shopping Mall Example

BAŞYAZICI İ. U., Ağra Ö.
Tesisat Mühendisliği , no.197, pp.45-58, 2023 (Peer-Reviewed Journal) identifier

Alternatif Soğutucu Akışkanlardan İsobütan’xxın Yatay Boru İçinde Yoğuşmada Isı Transferi Katsayısının Tespiti

AĞRA Ö.
Makine Mühendisleri Odası Dergisi , 2012 (Peer-Reviewed Journal)

İstanbul’xxdaki Konutlar İçin Optimum Yalıtım Kalınlığının Belirlenmesi

AĞRA Ö., EMANET Ö., KÜREKCİ N. A.
Makine Mühendisleri Odası Dergisi , 2012 (Peer-Reviewed Journal)

Alternatif soğutucu akışkanlardan isobütanın yatay boru içinde yoğuşmada ısı transfer katsayısının tespiti

AĞRA Ö.
MMO Tesisat Mühendisliği dergisi , no.109, pp.28-36, 2009 (Peer-Reviewed Journal)

İstanbul’daki Konutlar İçin Optimum Yalıtım Kalınlığının Belirlenmesi

Ağra Ö., Emanet Ö., Kürekci N. A.
Tesisat Mühendisliği , no.109, pp.21-27, 2009 (Peer-Reviewed Journal) Creative Commons License

İklimlendirmede Kullanılan Soğutkanlar Arasında Bir Karşılaştırma

ÖZKAN D. B., AĞRA Ö., Çetin Ö.
Türkiye Tesisat Mühendisleri Derneği Dergisi , vol.52, pp.26-31, 2007 (Peer-Reviewed Journal)
Refereed Congress / Symposium Publications in Proceedings

FANLI PİŞİRİCİ CİHAZLARDA MOTOR DÖNÜŞ DEVRİ VE YÖNÜNÜN SİRKÜLASYON DEBİSİNE ETKİSİNİN NÜMERİK VE DENEYSEL İNCELENMESİ

Önal M., Ağra Ö., Sevindir M. K.
ULUSLARARASI KATILIMLI 24. ISI BİLİMİ VE TEKNİĞİ KONGRESİ, Ankara, Turkey, 6 - 08 September 2023, vol.2, pp.562-571

Artificial Neural Networks for Drying Characteristics Determination: An Application in Fluidized Bed Drying

Yıldırım A., Ergök H., Ağra Ö.
5th International Anatolian Energy Symposium, Trabzon, Turkey, 24 - 26 March 2021, pp.11-20 Sustainable Development

Energy Consumption Optimization for Heat Pump Domestic Heater

SAĞLICAN E., AĞRA Ö.
International Conference on Engineering Technologies'18 Konya, Konya, Turkey, 26 September 2018, pp.418-425 Sustainable Development

Bina temeline ve altındaki toprağa uygulanan toprak kaynaklı ısı pompası sisteminin deneysel çalışması

KAYACI N., DEMİR H., ATAYILMAZ Ş. Ö., AĞRA Ö., ACET R. C., GEMİCİ Z.
4. Uluslararası Katılımlı Anadolu Enerji Sempozyumu, 18 - 20 April 2018

FARKLI TEL ÇAPLARINA GÖRE TELLİ TİP YOĞUŞTURUCULARDA HAVA TARAFI ISI GEÇİŞİNİN SAYISAL İNCELENMESİ

GÖNÜL A., SEVİNDİR M. K., AĞRA Ö., DEMİR H., ATAYILMAZ Ş. Ö.
4 Uluslararası Katılımlı Anadolu Enerji Sempozyumu, 18 - 20 April 2018

KONVEKTİF KURUTMA FIRININDA TUĞLA ÇAMURUNUN KURUTMA KARAKTERİSTİĞİNİN İNCELENMESİ

Kuş B., YILDIRIM A., SEVİNDİR M. K., AĞRA Ö.
4. Uluslararası Katılımlı Anadolu Enerji Sempozyumu, 18 - 20 April 2018

BİNA TEMELİNE VE ALTINDAKİ TOPRAĞA UYGULANAN TOPRAK KAYNAKLI ISI POMPASI SİSTEMİNİN DENEYSEL ÇALIŞMASI

KAYACI N., DEMİR H., ATAYILMAZ Ş. Ö., AĞRA Ö., Acet R. C., Gemici Z.
4. Uluslararası Katılımlı Anadolu Enerji Sempozyumu, Edirne, Turkey, 18 April 2018, pp.1

THE DETERMINATION OF THE BEST CFD MODELS FOR CALCULATION OF AIR-SIDE HEAT TRANSFER ON WIRE-ON-TUBE TYPE CONDENSERS

GÖNÜL A., DEMİREL E., GÜNERİ B., GEZE E., DEMİR H., ATAYILMAZ Ş. Ö., et al.
3rd INTERNATIONAL CONFERENCE ON ADVANCES IN MECHANICAL ENGINEERING ISTANBUL 2017, İstanbul, Turkey, 19 - 21 December 2017

AKIŞKAN YATAKLI KURUTUCUDA KÜLTÜR MANTARININ KURUMA KARAKTERİSTİĞİNİN İNCELENMESİ

Çermaoğlu M. F., YILDIRIM A., SEVİNDİR M. K., AĞRA Ö.
21. Ulusal Isı Bilimi ve Tekniği Kongresi, Turkey, 13 - 16 September 2017

Experimental setup for the determination of heat transfer inside the soil region in ground source heat pump

KAYACI N., DEMİR H., ATAYILMAZ Ş. Ö., AĞRA Ö.
Proceedings of 2nd International Conference on Mechanical and Aeronautical Engineering, in Bangkok, 13 - 14 July 2016

Experimental Setup For The Determination Of Heat Transfer Inside The Soil Region In Ground Source Heat Pump GSHP

KAYACI N., DEMİR H., ATAYILMAZ Ş. Ö., AĞRA Ö.
2nd Internaional Conference on Mechnaical and Aeronautical Engineering, 13 - 14 July 2016

EFFECTS OF SURFACE CONDITIONS ON TEMPERATURE DISTRIBUTION IN THE SOIL AND GROUND SOURCE HEAT PUMP PERFORMANCE

KAYACI N., DEMİR H., ATAYILMAZ Ş. Ö., AĞRA Ö.
the ASME International Mechanical Engineering Congress & ExpositionIMECE 2015, 13 - 19 November 2015, pp.1-11

LONG TIME SIMULATION OF HORIZONTAL GROUND HEAT EXCHANGER FOR GROUND SOURCE HEAT PUMP

KAYACI N., DEMİR H., ATAYILMAZ Ş. Ö., AĞRA Ö.
ASME International Mechanical Engineering Congress & ExpositionIMECE 2015, 13 - 19 November 2015, pp.1-10

Effects Of Surface Conditions For Different Climatic Zones In Turkey On Temperature Distribution In The Soil

KAYACI N., DEMİR H., ATAYILMAZ Ö., AĞRA Ö.
ASME 2015 International Mechanical Engineering Congress & Exposition (2015), November 13-19, 01 November 2015

Numerical Analysis for Energy Performance of Ground Source Heat ExchangerUnder Environmental Conditions of Istanbul, Turkey

DUMAN Ö., DEMİR H., KOCA A., ATAYILMAZ Ş. Ö., AĞRA Ö.
The European Conference on Sustainability, Energy the Environment 2015, 13 - 16 July 2015

Long term simulation of horizontal Ground Heat Exchanger for ground source Heat Pump

Kayaci N., ATAYILMAZ Ş. Ö., DEMİR H., AĞRA Ö.
ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015, Texas, United States Of America, 13 - 19 November 2015 identifier

Free convection film condensation of steam in presence of non-condensation gases using CFD based approach in a room filled with humid air

KOCA A., ATAYILMAZ Ş. Ö., AĞRA Ö.
ASME International Mechanical Engineering Congress and Exposition, IMECE 2014, 14 - 20 November 2014

Thermo economical optimization of ground source heat pump with horizontal ground heat exchangers for a heating season in Istanbul: A case study

DEMİR H., GÖNÜL A., KAYACI N., ATAYILMAZ Ş. Ö., AĞRA Ö.
4th Joint US-European Fluids Engineering Summer Meeting FEDSM2014, Chicago, United States Of America, 3 - 07 August 2014

DRYING CHARACTERICTICS OF ÇINI CERAMIC RAW MATERIALS IN A CONVECTIVE DRYER

GÖNÜL A., AĞRA Ö.
19th International Drying Symposium (IDS 2014), Lyon, France, 24 August 2014, pp.15-20

Drying Kinetics of kiwi fruits

GÖNÜL A., AĞRA Ö., SEVİNDİR M. K., ATAYILMAZ Ş. Ö., DEMİR H.
19th International Drying Symposium (IDS 2014)Lyon, France, 2014, 24 - 27 August 2014

Application of artificial neural networks to predict heat transfer from buried pipe for ground source heat pump applications

DEMİR H., Atayilmaz Ö. Ş., AĞRA Ö., DALKILIÇ A. S.
ASME 2013 Heat Transfer Summer Conference, HT 2013 Collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology, Minneapolis, MN, United States Of America, 14 - 19 July 2013, vol.4 identifier identifier

Effects of the nano particle concentration and type on natural convection heat transfer from horizontal concentric cylinder systems cooling in the ambient air

DEMİR H., ATAYILMAZ Ş. Ö., AĞRA Ö., Teke I.
ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012, Houston, TX, United States Of America, 9 - 15 November 2012, vol.7, pp.2913-2924 identifier

Determination of two-phase flow void fraction of r600a in a horizontal smooth tube

AĞRA Ö., DEMİR H., ATAYILMAZ Ş. Ö., YURTSEVEN A., DALKILIÇ A. S., WONGWISES S.
ASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012, Houston, TX, United States Of America, 9 - 15 November 2012, vol.7, pp.2547-2561 identifier identifier

Energy Efficient Building in Third Climatic Region of Turkey

ÇUBUK M. H., EMANET Ö., AĞRA Ö.
World Renewable Energy Congress 2011, Linköping, Sweden, 08 May 2011, pp.10

Economical analysis of a chemical heat pump system for waste heat recovery

DEMİR H., AĞRA Ö., ATAYILMAZ Ş. Ö.
World Renewable Energy Congress, 1 - 02 May 2011

Environmental impact of optimum insulation thickness in buildings

AĞRA Ö., ATAYILMAZ Ş. Ö., DEMİR H., TEKE İ.
World Renewable Energy Congress, 1 - 02 May 2011 Sustainable Development

Experimental ground source heat pump system to investigate heat transfer in soil

DEMİR H., ATAYILMAZ Ş. Ö., AĞRA Ö.
World Renewable Energy Congress, 1 - 02 May 2011

Predicting two phase flow pressure drop with CFD and ANN

Teke I., AĞRA Ö., DEMİR H., ATAYILMAZ Ş. Ö.
ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010, Vancouver, Canada, 12 - 18 November 2010, vol.7, pp.111-117 identifier

An experimental apparatus to investigate natural convection heat transfer from a vertical array of isothermal horizontal cylinders

ATAYILMAZ Ş. Ö., DEMİR H., AĞRA Ö., Teke I.
ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010, Vancouver, Canada, 12 - 18 November 2010, vol.7, pp.461-471 identifier

Predicting Two Phase Pressure Drop with CFD and ANN

TEKE İ., AĞRA Ö., DEMİR H., ATAYILMAZ Ş. Ö.
ASME International Mechanical Engineering Congress and Exposition, 2010, Vancouver, 12 - 18 November 2010 identifier

Determination of optimum insulation thickness for different climatic zones of Turkey

KÜREKCİ N. A., AĞRA Ö., EMANET Ö.
2009 ASME International Mechanical Engineering Congress and Exposition, IMECE2009, Lake Buena Vista, FL, United States Of America, 13 - 19 November 2009, vol.6, pp.499-505 Sustainable Development identifier

Experimental apparatus for the determination of condensation heat transfer coefficient for R134A and R600A flowing inside vertical and horizontal tubes respectively

DALKILIÇ A. S., AĞRA Ö.
2009 ASME Summer Heat Transfer Conference, HT2009, San Francisco, CA, United States Of America, 19 - 23 July 2009, vol.1, pp.549-563 identifier identifier

Numerical Study of Natural Convection Around an Isolated Horizontal Cylinder and Determination of Critical Radius Effect with a Variable Heat Transfer Coefficient

ATAYILMAZ Ş. Ö., DEMİR H., AĞRA Ö.
ASME Summer Heat Transfer Conferences, Usa, United States Of America, 01 August 2009, pp.1

Experimental apparatus for the determination of condensation heat transfer coefficient for R134a and R600a flowing inside vertical and horizontal tubes

Dalkılıç A. S., Ağra Ö.
Summer Heat Transfer Conference, ASME (2009), California, United States Of America, 19 - 23 July 2009, pp.1-15 identifier

A Comparison Between Refrigerants Used In Air Conditioning

AĞRA Ö.
Well Being Indoor Clima 2007, 01 June 2007

Energy Saving by Using Heat Recovery Devices at Different Climatic Regions in Turkey

ÖZKAN D. B., ÇUBUK M. H., AĞRA Ö.
International Conference on Environment: Survival and Sustainability, ESS2007, Lefkoşa, Cyprus (Kktc), 19 February 2007, pp.244
Other Publications

AN EXPERIMENTAL STUDY OF EFFECTIVE FACTORS ON SOIL REMOVAL EFFICIENCY IN CLEANING PROCESS BY SOLID STREAM JET NOZZLES

PATKAVAK M., KOÇ Y., AĞRA Ö., HEPERKAN H.
Technical Report, pp.774-779, 2016
Metrics

Publication

66

Citation (WoS)

228

H-Index (WoS)

8

Citation (Scopus)

367

H-Index (Scopus)

10

Citation (Scholar)

51

H-Index (Scholar)

3

Project

10

Thesis Advisory

20

Open Access

3
UN Sustainable Development Goals