Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Penka Zlateva"'
Publikováno v:
Fermentation, Vol 10, Iss 4, p 187 (2024)
Annually, a huge amount of waste from plant biomass and animal manure is produced from agriculture and animal farming. Many studies provide information on the biomethane potential of agricultural and livestock wastes, but only a few studies have inve
Externí odkaz:
https://doaj.org/article/2ee5b6a2ca584a2491e06d37b0ae514d
Publikováno v:
Engineering Proceedings, Vol 60, Iss 1, p 23 (2024)
A detailed assessment of the effect of implementing energy saving measures (ESMs) in administrative buildings, is presented in the following work. The main objective is to study the impact of these measures on energy consumption and to refine the dif
Externí odkaz:
https://doaj.org/article/23b16eb450454766b3334677cd3f1dd1
Publikováno v:
Journal of Engineering and Applied Science, Vol 69, Iss 1, Pp 1-13 (2022)
Abstract In recent years, non-wovens have become the main segment of textile production because they can find applications in different areas. Thermal insulation properties, fire resistance, and flexibility make them cost-effective and efficient insu
Externí odkaz:
https://doaj.org/article/892397289b994c2c819b1390668592b1
Publikováno v:
Civil and Environmental Engineering, Vol 16, Iss 2, Pp 388-395 (2020)
This research aims at comparing the thermal performance of walls made from traditional and alternative building materials. The experimental study involves five types of walls were studied based on perforated ceramic bricks and a mixture of clay, sand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d00c388e4d6e0372e170b84337049796
https://doi.org/10.2478/cee-2020-0039
https://doi.org/10.2478/cee-2020-0039
Publikováno v:
E3S Web of Conferences, Vol 327, p 02008 (2021)
The article presents the design and manufacture of an electronic measuring system based on an ESP32 microcontroller equipped with LORA E32 wireless data transceivers, a SD card for data recording and a computer with application for photovoltaic panel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c644a425f5fddbcb2c487e373f7788ba
Autor:
Rositsa Petkova-Slipets, Penka Zlateva
Publikováno v:
Civil and Environmental Engineering, Vol 15, Iss 1, Pp 36-41 (2019)
The influence of types and parameters of hollow microspheres in the composition of syntactic foams on their structure and coefficient of thermal conductivity has been studied. By using structural and thermal analysis it has been found that the volume
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65fb36ff9cf618f41558e25056ef7cf1
https://doaj.org/article/897bc627d9c249188de32ab42ebb0cb0
https://doaj.org/article/897bc627d9c249188de32ab42ebb0cb0
Autor:
Angel Terziev, Penka Zlateva
Publikováno v:
2021 6th International Symposium on Environment-Friendly Energies and Applications (EFEA).
The current paper focuses on the possibilities for the production of methane through the gasification of biomass and further use as a fuel in transport equipment. The research aims to produce methane as a final product through the gasification of was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da57b93fd511e181913d7418667975e4
https://doi.org/10.1109/efea49713.2021.9406250
https://doi.org/10.1109/efea49713.2021.9406250
Autor:
Radostin Dimitrov, Penka Zlateva
Publikováno v:
E3S Web of Conferences, Vol 327, p 02009 (2021)
The paper reveals a study about air-fuel ratio variation of spark-ignition engine running on upgraded biogas (biomethane). Using biogas as internal combustion engine fuel and external mixture formation is a new approach to decrease harmful exhaust ga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cde11d40489ec25d6ef26cf92df9407c
https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/103/e3sconf_pepm2021_02009.pdf
https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/103/e3sconf_pepm2021_02009.pdf
Publikováno v:
2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA).
This paper presents an analysis of energy resources in Bulgaria and Romania. The aim of this study is to justify the need for energy mix in the energy system of Romania and Bulgaria. There is a shift from the traditional energy pillars, such as coal-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fb222436b054ee17c8ead754068355e
https://doi.org/10.1109/siela49118.2020.9167132
https://doi.org/10.1109/siela49118.2020.9167132
A study of the combustion in hot water boilers, burning different types of fuels is carried out. The quantity and composition of the combustion products, excess air ratio, thermal losses and pollutions to the environment are obtained via exhaust gase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a41507e67277c228ce98132fba4c2f4b