Laboratories

Laboratories

Laboratories

Address:
University of Forestry, dept. Furniture Production, 10 “Kl. Ohridski” blvd, Sofia 1797, Bulgaria

Head of the laboratory:
Assoc. Prof. PhD Yancho Genchev

Activities:

Laboratory exercises for students; researches and consultations. More than 70 types of materials participate in the construction of upholstered furniture. The laboratory examines the functional parameters of the various types of upholstered furniture, the proportionality of the basic elements and their composition in complex spatial furniture, as well as the strength and deformation behavior when loading the skeletons by the finite element method (FEM) with CAE software. Deformation properties of upholstery materials and upholstery structures and bases under load are investigated.

Machines and equipment:

Stand for testing the deformation behavior when loading different upholstery materials and structures of upholstery, stand for testing upholstered furniture.

Contact person:

Assoc. Prof. PhD Genchev, phone: +359 2 91 907 209, fax: +359 2 862 28 30

E-mail: genchevy@abv.bg

Address:
University of Forestry, dept. Furniture Production, 10 “Kl. Ohridski” blvd, Sofia 1797, Bulgaria

Head of the laboratory:
Chief Assist. Prof. Vasil Merdzhanov

Activities:
Student lab classes and consultations. Activities – determination of strength and visually aesthetic qualities of raw materials, finished materials and composites, testing of building structures for thermal and sound insulation, etc.

Machines and equipment:
Equipment for determine of gloss and shine, hardeners, roughness gauges, equipment for determination of illumination of rooms, electronic instruments for angular and linear measurements, pneumatic pistols for structural assemblies with brackets, equipment for finger jointing in length and width.

Contact person:
Merdzhanov, tel:+359 2 91 907 452; mob. +359 888104221
E-mail: vasilmerdzhanov@gmail.com

Chief Assist. Prof. PhD Vasil Merdzhanov is a Member of the Chamber of Engineers of Investment Design: Full Design Aptitude.

Address:

Sofia 1797, 10 Kliment Ohridski Blvd., University of Forestry, Department of Mechanical Technology of Wood

Head of the laboratory:

Assoc. Prof. PhD Nikolay Burdarov

The Wood Science Laboratory consists of two halls, which carry out a variety of wood training and research activities. The main hall (305) houses the xylotech. It contains specimens for studying the morphological structure of wood. They are two species, representing more than 50 of ours and about 30 tropical tree species. The hall has a rich collection of wood samples soaked in glycerin and prepared for microscopic examination. For these tests, the room is equipped with transmitted light microscopes. There are also various test pieces in the hall to study the physical and mechanical properties of wood.

The Hall of wood defects (306) is equipped with a rich collection for the study and study of the defects of wood. Samples collected over time by students and colleagues are presented here. They allow for a wide variety of deficiencies in both round and shaped materials.

Services provided by the laboratory:

3.1. Training of students

3.2. Research

3.3. Consultations

3.4. Services:

  • Determination of water content in physical and mechanical tests. (according to BDS 17204: 1990 and BDS ISO 3130: 1999).
  • Determination of linear and bulk drying. (according to BDS 17204: 1990 and standard of Council of Mutual Economic Assistance – CMEA 6089: 1987).
  • Determination of linear and volume swelling. (according to BDS 17204: 1990 and standard of CMEA 6010: 1987).
  • Determination of density in physical and mechanical tests. (according to BDS 17204: 1990 and BDS ISO 3131: 1999).
  • Determination of the static hardness of the wood. (according to standard of CMEA 2366: 1980).
  • Determination of the ultimate tensile strength of the wood along the fibers. (according to standard of CMEA: 1977).
  • Determination of ultimate strength in static bending of wood. (according to standard of CMEA: 1976).
  • Determination of the tensile strength of the fibers of the wood. (according to standard of CMEA 816: 1977).
  • Determination of the ultimate tensile strength transversely of the wood fibers. (according to standard of CMEA 816: 1977).
  • Determination of the shear strength of shear along the fibers of the wood. (according to the standard of CMEA 814: 1977)
  • Determination of the cut-off strength of the transverse fibers of the wood. (according to standard of CMEA 814: 1977).3
  • Determination of the splitting resistance of the wood. (according to the standard of CMEA 2365: 1980)
  • Determination of the resistance to removal of nails and screws. (according to the standard of CMEA 2364: 1980).
  • Determination of the linear deformation modulus for static bending of wood. (according to standard of CMEA 1142: 1978).
  • Determination of the dynamic modulus of linear deformation of wood. (according to standard of CMEA 1143: 1978).
  • Determination of deficiencies in round and scraped materials according to the standard of CMEA 2017: 1979; 2018: 1979; 2019: 1979; 320: 1976; 321: 1976; 391: 1976.
  • Determination of tree species by their macroscopic features (according to BDS 12329: 1984).
  • Determination of tree species by their microscopic features (according to BDS 12329: 1984).

Funds available to the laboratory:

microscopes, apparatus for preparation of microscopic preparations, apparatus for determining physical properties, stand for testing the mechanical properties of wood, apparatus for determining the dynamic modulus of linear deformation

Keywords:

wood structure, wood properties, wood defects, wood species, water content, linear and volume drying and swelling, wood density, wood hardness, compressive strength, static bending strength (MOR), tensile strength, tensile strength , splitting resistance, static linear deformation module (MOE), dynamic linear deformation module (Modul of Young).

Contact person:

Nikolai Bardarov, tel:(++359 2) 91 907, 463, :(++359 2) 91 907, 433, e-mail: niki_bardarov@ltu.bg

Practical classes in Wood Science

Address:

Sofia 1756, 10 Kliment Ohridski Blvd., University of Forestry.

Department of Woodworking Machines, phone: +359 2 91 907 290, fax: +359 2 862 28 30; Email: g_kovachev@ltu.bg

Head of laboratory:
Chief Assist. Prof. PhD Georgi Kovachev

Work places: 12

 Work activity:

The laboratory trains students in the subjects of “Technology of Wood and Furniture“ and “Engineering Design (Interior and design of furniture)“, research and consultations. Students calculate different machine elements such as gears, chain gears, worm gears, shafts, axis, bearings. Each student receives a previously drawn plan with the magnitudes of the forces, power, torque and other data needed to calculate the corresponding assignment. To calculate the assignment students use different guides, catalogs and standards. After completing the calculations, students design and draw the corresponding machine elements.

Equipment:

The laboratory is in disposition of various machine elements: cylindrical gears, cone gears, worm gears, chain wheels, chains, belt pulleys, belts, reduction gear, shafts, bearings, connectors, variators, screw connections, bolts, nuts, washers.

Keywords:

Machine Elements, Machine Science

Contact person:

Chief Assist. Prof. PhD Georgi Kovachev

E-mail: g_kovachev@ltu.bg

The Microbiological Laboratory in Faculty of Veterinary Medicine, University of Forestry, is situated in “Tzarigradsko shosse” № 73. The person in charge is assoc. prof. Teodora Popova, Ph.D.
It is a teaching, diagnostic and research laboratory and is a part of clinical – diagnostic unit of the Faculty of Veterinary Medicine at the University of Forestry. It provides the following activities:

  • Teaching: ● Practical training of students of Veterinary Medicine in the discipline Microbiology. ● Postgraduate study in the specialty “Microbiology and diagnostic of bacterial infections”.
  • Diagnostic. Microbiological and mycological diagnostic tests of clinical and pathological materials from domestic and wild animals are carried out. Isolation and identification of pathogens through application of complex microscopic, cultural, biochemical and serological methods are performed, as well as in vitro determination of the sensitivity of isolated bacteria to antibiotics and chemotherapeutics.
  • Research.

We are currently working on the following projects:

  • Alien terrestrial arthropods and their impact on biodiversity in Bulgaria (ATARTIB) – on-going (partner) – Project N 827/17.12.2008.
  • Ecologization of anaerobe biotechnologies by combination of energy cultures and waste biomass (Project N DVU 02-282/2010 ).

Much of the results of research and diagnostic activities are implemented in the educational process. They are demonstrated to students during the practical classes. Permanent preparations are made, by which the collection for practical exercises is filled regulary. In some cases, pictures and other visual materials are made and used for academic work.

The laboratory has the necessary equipment for microbiological work (research microscope with camera and capabilities for ultramicroscopic and fluorescent study, educational microscopes, thermostats, refrigerators, autoclave, sterilizers, water bath, scales, centrifuges, distiller, etc.). Also a large collection of microbial strains, permanent microscopic preparations and necessary glassware, culture media, diagnostic kits, chemicals and other supplies are available.

Head of laboratory: Аssoc. Prof. T. Popova, PhD

 

Address:
Sofia 1756, 10 Kliment Ohridski Blvd., University of Forestry.
Department of Woodworking Machines, phone: +359 2 91 907 334, fax: +359 2 862 28 30; Email: p_vitchev@ltu.bg

Head of the laboratory
Chief Assist. Prof. Pavlin Vitchev, Ph.D.

Services provided by the laboratory:
The main purpose of the Training and Demonstration Center is to support students’ hands-on training and to help them develop and strengthen their skills and competences when working with the technological equipment in the laboratory. The students will acquire knowledge about the technological capabilities and range of applications of each tool, the correct selection and installation of cutting tools, power tool adjustment and operation.
The Center will also contribute to the research in the field of wood cutting and wood based materials, surface quality, wear of cutting tools and etc.

Equipment available in the laboratory:
The Training and Demonstration center consists of two areas: one room for theoretical training and one for practical training. It is equipped with almost the complete range of power tools of the German company FESTOOL which are used in furniture production and assembly, including:
circular sawing machine for longitudinal and cross cutting, milling cutters, drill and screwdriver machine, sanding machines, edging machine, local dust extractors, multifunctional working tables, measuring instruments and etc.
Keywords for the activity of the laboratory: power tools; cutting tools; wood cutting; wood based materials; technologies

Contact person
Chief. Asisst. Prof. Pavlin Vitchev, PhD, tel.: +359 2 91 907 334, fax: +359 2 862 28 30;
Email: p_vitchev@ltu.bg

Acknowledgement
The University of Forestry and the Faculty of Forest Industry express their gratitude to the companies that supported the establishment of the Training and Demonstration Center for Power Tools: FESTOOL, TEKA, IKEA, JAF, Consult Engineering – KEM Ltd.

Address:
Sofia 1756, 10 Kliment Ohridski Blvd., University of Forestry.
Department of Woodworking Machines, phone: +359 2 91 907 334, fax: +359 2 862 28 30; Email: p_vitchev@ltu.bg

Head of the laboratory
Asst. Prof. Pavlin Vitchev, Ph.D.

Services provided by the laboratory:
The main purpose of the Training and Demonstration Center is to support students’ hands-on training and to help them develop and strengthen their skills and competences when working with the technological equipment in the laboratory. The students will acquire knowledge about the technological capabilities and range of applications of each tool, the correct selection and installation of cutting tools, power tool adjustment and operation.
The Center will also contribute to the research in the field of wood cutting and wood based materials, surface quality, wear of cutting tools and etc.
Equipment available in the laboratory:

The Training and Demonstration center consists of two areas: one room for theoretical training and one for practical training. It is equipped with almost the complete range of power tools of the German company FESTOOL which are used in furniture production and assembly, including:
circular sawing machine for longitudinal and cross cutting, milling cutters, drill and screwdriver machine, sanding machines, edging machine, local dust extractors, multifunctional working tables, measuring instruments and etc.

Keywords for the activity of the laboratory:
power tools; cutting tools; wood cutting; wood based materials; technologies

Contact person
Asst. Prof. Pavlin Vitchev, PhD, tel.: +359 2 91 907 334, fax: +359 2 862 28 30;
Email: p_vitchev@ltu.bg

Acknowledgement
The University of Forestry and the Faculty of Forest Industry express their gratitude to the companies that supported the establishment of the Training and Demonstration Center for Power Tools: FESTOOL, TEKA, IKEA, JAF, Consult Engineering – KEM Ltd.

Address:

10 Kliment Ohridski Blvd., 1797 Sofia, University of Forestry

Department of Woodworking Machines, Tel.: +359 2 91 907/290, Fax: +359 2 862 28 30;

E-mail: vatanasov_2000@ltu.bg

Head of the laboratory

Valentin Atanasov, Lecturer, PhD

Services provided by the laboratory:

Students from Faculty of Forest Industry and Faculty of Business Management are trained in the laboratory. The application, construction and mechanisms of a wide group of woodworking machines are examined: band saw machines, circular saw machines, shapers, jointers, drilling machines, thicknessers, etc. The machines are calculated kinematically, force and strength. Cutting, feeding, transmitting and other mechanisms of woodworking machines are calculated kinematically. The cutting forces generated during the work, the inertial forces, the friction forces, traction forces, the required compressive forces, and more are determined. Strength and stiffness design is performed, and engines for cutting, feeding, adjusting and other mechanisms are selected. On their basis, the design of their main elements – working spindles, elements for feed movement, etc. is carried out. Laboratory classes with woodworking machines are performed.

Devices available to the laboratory when performing the services:

The laboratory has a band saw machines, a shaper with lower spindle position, a multi-purpose drilling machine and two circular saw machines; measurements of power-energetic indicators of woodworking machines are carried out – by multifunctional device which allows reporting of current, voltage, power factor, active, reactive, full power – for each phase and total; current and voltage transformers which are needed to connect the device and software from the manufacturer.

Keywords for the activity of the laboratory:

Woodworking Machines; Design of machines and mechanisms; Woodworking technologies

 

Contact person:

Chief Assist. Prof. PhD Valentin Atanasov, Tel.: +359 898447098, Fax: +359 2 862 28 30;

E-mail: vatanasov_2000@yahoo.com