Department of Power Engineering

et Head of Department: Assoc. Prof.  Maria Deneva Raykova, Ph.D.

Room: 1237
Phone: +359 (0)66 800 379; +359 (0)66 827 379

  Academic Organizer: Margarita Kircheva Savova
    Room: 1304
Phone: +359 (0)66 827 393

Brief Background

The Department of Power Engineering prepares highly qualified engineers in the field of hydraulics and pneumatics, heat engineering, thermal and hydropower engineering, energy efficiency and renewable energy sources.

The Department in its present form has existed since 2002. It is a successor of the Department of Fluid Mechanics, which was established in 1971 by Prof. Ventsislav Madzhirsky – one of the first rectors of TU-Gabrovo.

Currently, the Department staff consists of one professor, 3 associate professors, 4 assistant professors and 2 people supporting staff. Seven of the lecturers have academic ranks and one is a doctor of science. By 2012 six PhD students are enrolled in the Department in two scientific majors.

Since its foundation the Department has certified over 2,000 engineers who have graduated from both full and part-time programmes in “Hydraulics and Pneumatics”, “Power Engineering”, “Hydraulic and Pneumatic Engineering” and “Industrial Engineering”. Eleven doctoral dissertations have been developed and defended, eight ranks of associate professor and two full professor ranks have been obtained.

The Department staff strives to create attractive conditions for training and development of students, to use modern teaching methods, to update and introduce new subjects and to enrich the training facilities.

Starting from the 2012–2013 academic year students will be enrolled in the degree course „Heating, Ventilation, Air-Conditioning and Gas Equipment”. Graduates of this major will be able to find professional realization as designers of heating, ventilation, air-conditioning and gas systems.

The Department of Power Engineering is a major unit in conducting the training courses for professionals in the field of energy efficiency held at TU-Gabrovo.

Department Staff

Name and academic rank Room Phone
Assoc. Prof.  Maria Deneva Raykova, Ph.D.
+359 (0)66 827 367
+359 (0)66 827 379
Assoc. Prof. Krasimir Hristov Ormandzhiev, Ph.D. 1306 +359 (0)66 827 367
Assoc. Prof.  Hristo Nedev Hristov, Ph.D. 1307 +359 (0)66 827 275
Chief Assist Prof. Valentin Metodiev Petkov, Ph.D. 1105 +359 (0)66 827 274
Chief Assist.Prof. Nikolay Stefanov Stefanov, Ph.D. 1305 +359 (0)66 827 373
Chief Assist.Prof. Plamen Penchev Penchev, Ph.D. 1105 +359 (0)66 827 274
Assist.Prof. Ivailo Iliyanov Iliev 1305 +359 (0)66 827 273
Guest lecturers    
Prof.  Ventsislav Dimov Zimparov, D.Sc. 1105 +359 (0)66 827 275
Prof.  Ivan Dimitrov Iliev 1305 +359 (0)66 827 373
Assoc. Prof.  Hristo Dimitrov Slavchev, Ph.D. 1305 +359 (0)66 827 373
Assoc. Prof.  Petar Serafimov Ivanov, Ph.D. 1307 +359 (0)66 827 275
Assoc. Prof.  Rositsa Marinova Kazakova, Ph.D. 1305 +359 (0)66 827 373

The Department is in charge of training students in the following Bachelor degree courses:

The Department is in charge of training students in the following Master degree courses:

  • Hydraulic, Pneumatic and Heating Engineering
  • Ventilation and Air-Conditioning Equipment
  • Industrial Engineering
  • Heating, Ventilation and Air-Conditioning of Industrial Objects

The Department has been accredited for conducting training in the following PhD courses:

  • Industrial Heating Engineering
  • Hydraulic and Pneumatic Drive Systems


Graduates of the degree courses „Hydraulic and Pneumatic EngineeringandIndustrial Engineering

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Major Disciplines

The Department conducts teaching of students in the following major disciplines:

Educational-Qualification Degree of BACHELOR:

  • Fluid Mechanics
  • Theoretical Principles of Automated Adjustment and Control
  • Volumetric Hydraulic and Pneumatic Machines
  • Thermal Hydraulics
  • Hydraulic and Pneumatic Drives
  • Turbo-Pumps, Turbo-Compressors and Turbo-Fans
  • Measurement of Hydraulic, Pneumatic and Thermal Values
  • Water Turbines
  • Hydraulic and Pneumatic Transportation and Special Type Pumps
  • Thermal Engineering
  • Thermal Power Engineering
  • Cooling Equipment
  • Refrigerators and Cooling Installations
  • Hydraulic and Pneumatic Actuators and Control
  • Ventilation and Air-Conditioning Equipment
  • Heating Equipment

Educational-Qualification Degree of MASTER:

  • Modeling and Simulation of Dynamic Processes;
  • Hydraulic and Pneumatic Drives for Special Purpose Machines;
    • Computer Methods in Mechanics of Continuous Media;
    • Hydroelectric Power Plants and Pumping Stations;
    • Unconventional Energy Sources;
    • Construction and Thermal Characteristics of Buildings;
    • Ventilation and Dust Removal Systems;
    • Heat and Gas Supply.

Training Laboratories

The Department has a number of specialized laboratories – “Fluid Mechanics”; “Heat Engineering”, „Gas Equipment”, „Renewable Energy Sources”, „Heat Exchangers and Heat Pump Systems”, „Ventilation and Air-Conditioning Equipment”, „Turbo Machines”; “Theoretical Principles of Automated Adjustment and Control”, “Volumetric Hydraulic and Pneumatic Machines”; “Hydraulic and Pneumatic Drives” ; “Hydraulic and Pneumatic Actuators and Control”, „Water Turbines” – and a refurbished computerized laboratory.

LaboratoryGas Equipment

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Training and Research Laboratory Hydraulic and Pneumatic Drives and Control

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LaboratoryIntensification of Heat Transfer

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Training and Research LaboratoryWater Turbines

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LaboratoryRenewable Energy Sources

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Training and Research LaboratoryHydraulic Machinery and Equipment

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LaboratoryTurbo Machines

Scientific Interests of the Department Staff

Research carried out in the Department involves a wide range of issues related to:

  • Energy efficiency of buildings and industrial systems;
  • Hydraulic and pneumatic drive systems;
  • Dynamics and adjustment of hydraulic and pneumatic systems;
  • Hydraulic and pneumatic actuators and control;
  • Hydraulic and pneumatic machines – work, power, volumetric, paddle
  • Use of secondary and renewable energy sources;
  • Cooling equipment;
  • Air-conditioning and ventilation equipment;
  • Intensification of heat transfer;
  • Theoretical and industrial heat engineering;
  • Hydraulic and pneumatic transport;
  • · Gas supply.

The Department carries out consultancy work related to analyses, assessments, projects for new technical solutions or reconstruction and updating of existing systems.

Applied Research Developments of Department Lecturers:

  • Compact high efficiency heat exchangers;
  • Evaluation of energy efficiency in buildings and industrial systems;
  • High pressure hydrostatic chamber for processing of hard to melt metals;
  • Hydraulic pressure booster;
  • Hydraulic reserve valve throttle with dropping static characteristic;
  • Hydraulic and pneumatic transportation systems in textile industry;
  • Hydraulic press for pressing scraps from leather manufacturing industry;
  • Hydraulic drive for leather ironing machines;
  • Automated hydraulic drives;
  • Wind power generator set;
  • Hydraulic and pneumatic systems for driving machines, equipment and manufacturing systems.


Cooperation with Companies:

ТPP – Gabrovo; М+С „Hydraulic” – Кazanlak; Caprony – Кazanlak „Hi Теch Ingenering” – Burgas; „Pnevmatica – Serta АD” – Кardzhali; „WSS” Gabrovo; HPP”Hristo Smirnenski” Gabrovo; „Hidak” Stara Zagora; „Vaptsarov Holding” – Pleven; „Hydtech” – Plovdiv

Visit to HPPGabrovo

Visit to a pumping station
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Published Course Books and Study Guides:

  1. Славчев, Хр., Райкова, М., Водни турбини, Габрово, 2011
  2. Славчев Х., К. Орманджиев, Задвижващи хидравлични системи, Университетско издателство „В. Априлов” - Габрово, 2011
  3. Иванов П., Х.Христов, „Механика на флуидите” , Габрово, 2009
  4. Стефанов Н., „Методическо ръководство за упражнения по измерване на хидро-пневмо и топлинни величини, Габрово, 2007
  5. Зимпаров, В., Петков, В., Ръководство за лабораторни упражнения по термодинамика и топлопренасяне, Габрово, 2006
  6. Райкова, М., Турбопомпи, вентилатори и компресори, Габровопринт, Габрово, 2005г.
  7. Христов, Христо Н., Възобновяеми енергийни източници, Габровопринт, Габрово, 2005г
  8. Иванов, П., Христо Х. Христов, Орманджиев, К., Динамика на автоматизирани хидро и пневмо системи, Габрово, 2004г.
  9. Зимпаров, В., Метод на обобщените променливи и приложението му в топло и масопренасянето, ТУ-Варна, 2003г.
  10. Славчев, Хр., Пневмозадвижване, Университетско издателство “Васил Априлов”- Габрово, 2002г.
  11. Славчев, Хр., Обемни хидро-пневмо машини, Университетско издателство “Васил Априлов”- Габрово, 2002г.
  12. Зимпаров, В., Конвективен топлообмен, Габрово, 2000г.
  13. Казакова – Санкева, Р., Топлоенергийни процеси и съоръжения – ръководство за решаване на задачи, Габрово, 2000г.
  14. Зимпаров, В., Конвективен топлообмен, Габрово, 2000г.
  15. Илиев, И. Д., Основи на хладилната техника, Габрово, 2000г.