Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Zhivko Kolev"'
Publikováno v:
Engineering Proceedings, Vol 70, Iss 1, p 26 (2024)
This work presents the results of an experimental study of the braking properties of bicycles and an e-bicycle. Data on braking decelerations and braking distance under different braking conditions were obtained for different bicycles including an e-
Externí odkaz:
https://doaj.org/article/f6a71fb3d5fc42e5a4dc22c854b24076
Publikováno v:
INMATEH Agricultural Engineering. :243-250
The paper presents investigation of the temperature and heating velocity during rebuilding (reconditioning) of worn-out agricultural machinery parts by automatic electric arc weld deposition. The temperature has been measured in a control section loc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa3b272b8b8c2f16a44a1816bdb923e6
https://doi.org/10.35633/inmateh-67-24
https://doi.org/10.35633/inmateh-67-24
Publikováno v:
INMATEH Agricultural Engineering. :165-172
This paper presents investigation of some operational parameters of coatings for rebuilding, deposited on worn-out cast-iron parts of self-propelled agricultural machines. The coatings have been realized by applying a combined technology comprising d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5999ffdb33e3f0104f6c6abd5f38936a
https://doi.org/10.35633/inmateh-62-17
https://doi.org/10.35633/inmateh-62-17
Autor:
Zhivko Kolev, Seher Kadirova
Publikováno v:
THE 9TH INTERNATIONAL CONFERENCE OF THE INDONESIAN CHEMICAL SOCIETY ICICS 2021: Toward a Meaningful Society.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcfc0cb5693ef50d21fdf32ca10c8d37
https://doi.org/10.1063/5.0100129
https://doi.org/10.1063/5.0100129
Publikováno v:
TRANSPORT, ECOLOGY - SUSTAINABLE DEVELOPMENT EKO VARNA 2021.
The paper presents analytical determination of CO2 emissions of car climate control systems using different refrigerants. It considers the problems related to using different refrigerants in car climate control systems. The work provides a theoretica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::224e8e6ce64a411ae69e9e65a324de2f
https://doi.org/10.1063/5.0068364
https://doi.org/10.1063/5.0068364
Autor:
Zhivko Kolev, Seher Kadirova
Publikováno v:
2020 7th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE).
The paper presents a methodology and results for the determination of the heat convection coefficient by three-dimensional CFD simulation. Heat transfer processes realized between the water flow and the internal surface of the pipes of the “water-a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8707903a7f4d7d674f39f3dbd0d1ab25
https://doi.org/10.1109/eeae49144.2020.9279012
https://doi.org/10.1109/eeae49144.2020.9279012
Publikováno v:
2019 IEEE 25th International Symposium for Design and Technology in Electronic Packaging (SIITME).
The main purpose of the paper is to present a novel idea that is based on design and development of an automatic solar tracker system that tracks the Sun energy for maximum energy output achievement. The proposed system can store the measured data on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::912d4eab6c651d922c45613829af57c9
https://doi.org/10.1109/siitme47687.2019.8990692
https://doi.org/10.1109/siitme47687.2019.8990692
Autor:
Zhivko Kolev, Seher Kadirova
Publikováno v:
E3S Web of Conferences, Vol 112, p 01008 (2019)
This paper presents results from CFD simulation of heat transfer processes in ABAQUS. The investigations are realized at forced convection of air in steel pipe. Verification of the computing mesh and validation of the model, have been done. The avera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3e77a58f6f6efa93ac647c8cbb2c60f
https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/38/e3sconf_te-re-rd18_01008.pdf
https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/38/e3sconf_te-re-rd18_01008.pdf
Publikováno v:
E3S Web of Conferences, Vol 286, p 04011 (2021)
The paper presents design and experimental investigation of an electronic system for control of the temperature of exhaust gases and the turbocharging air pressure in turbochargers of diesel automobile engines. The existing problems are faults in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::272990f5ea1b0fdbe3f42c04eb385a11
https://doi.org/10.1051/e3sconf/202128604011
https://doi.org/10.1051/e3sconf/202128604011
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 1032:012031
The refrigeration cycle of a reversible water-to-water heat pump has been investigated at different operation parameters of a laboratory installation. The investigation has been accomplished in cooling working conditions. The real operation cycles of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0db65830fa7c31de44904a2a958dc64
https://doi.org/10.1088/1757-899x/1032/1/012031
https://doi.org/10.1088/1757-899x/1032/1/012031