Zobrazeno 1 - 10
of 256
pro vyhledávání: '"O, Hamdan"'
Publikováno v:
International Journal of Thermofluids, Vol 23, Iss , Pp 100748- (2024)
Photovoltaic (PV) solar cells are at the forefront of sustainable electricity generation technologies, yet they exhibit relatively low efficiency. Typically, less than 20 % of the solar energy absorbed is converted into electrical energy, with the re
Externí odkaz:
https://doaj.org/article/50be8fe626e44d988f8569f6b5e77c06
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 4547-4573 (2023)
Rapid depletion of conventional fossil fuels and increasing environmental concern are demanding an urgent carry out for research to find an alternate fuel which meets the fuel demand with minimum environmental impacts. Hydrogen is considered as one o
Externí odkaz:
https://doaj.org/article/d67c242e0aef43c9b1f9ce7a5b24ec4e
Publikováno v:
International Journal of Thermofluids, Vol 20, Iss , Pp 100468- (2023)
A detailed experimental and numerical validation studies are conducted on internal channel jet impingement cooling where seven jets impinging inside a rotating semi-cylindrical channel. The study objective is to mimic the cooling flow structure in ga
Externí odkaz:
https://doaj.org/article/bce2bed3134447aaa14bfaf06f9c66bd
Publikováno v:
International Journal of Thermofluids, Vol 20, Iss , Pp 100467- (2023)
A vortex tube is a device that separates compressed air into two streams: one with a higher temperature (hot stream) and the other with a lower temperature (cold stream). It is a popular cooling option because it is small, safe, and affordable. The m
Externí odkaz:
https://doaj.org/article/f8c6eb738c3845b58aeace96efdb94c6
Publikováno v:
SN Applied Sciences, Vol 4, Iss 8, Pp 1-17 (2022)
Abstract This paper examines the energy separation in vortex tubes which is a passive device that can split a pressurized room temperature gas stream to hot and cold streams. The paper employs numerical simulations to investigate the impact of variou
Externí odkaz:
https://doaj.org/article/919539093c374737bcf5469fbdaa0a60
Publikováno v:
Sensors, Vol 23, Iss 7, p 3479 (2023)
Different infrared (IR) planar geometric calibration targets have been developed over the years that exploit a well-established and flexible optical camera geometric calibration procedure following the pinhole approximation. This geometric calibratio
Externí odkaz:
https://doaj.org/article/42da3f733912492a86a035b1471bb78a
Publikováno v:
Journal of Tropical Forest Science, 2019 Jul 01. 31(3), 312-323.
Externí odkaz:
https://www.jstor.org/stable/26740148
Publikováno v:
Alexandria Engineering Journal, Vol 59, Iss 5, Pp 3781-3797 (2020)
Currently, gas turbine engines play a vital role in our daily lives. Some of the uses of gas turbine engines include aircraft propulsions, helicopters, submarines, and industrial applications. The thermal efficiency and power output of such engines c
Externí odkaz:
https://doaj.org/article/c959f8709a0746ccaef0ee6c082a1880
Publikováno v:
International Journal of Thermofluids, Vol 13, Iss , Pp 100133- (2022)
In this study, a series of numerical simulations are performed to investigate the performance of a vortex tube (VT) with various design parameters. The study focuses on six design parameters, mainly, inlet pressure, VT length, VT diameter, number of
Externí odkaz:
https://doaj.org/article/7387a4bb14bc45deb75a736a4d1a9009
Publikováno v:
Ecological Indicators, Vol 130, Iss , Pp 108148- (2021)
In this study, we used the spectral information divergence (SID) and spectral angle mapper (SAM) algorithm classification to identify ~ 40,000 individual trees from 19 mangrove species; these data were collected from 7 sampling points spread across 4
Externí odkaz:
https://doaj.org/article/498e0f2615c24d7f83be9a6798f5b40c