Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Ehsan Allymehr"'
Autor:
Ehsan Allymehr, Geir Skaugen, Torsten Will, Ángel Álvarez Pardiñas, Trygve Magne Eikevik, Armin Hafner, Lena Schnabel
Publikováno v:
Energies, Vol 14, Iss 15, p 4480 (2021)
Required refrigerant charge in heat pump systems with propane is analyzed. Two systems are compared: the first a direct heat pump, with fin-and-tube heat exchangers, and the second an indirect system, with plate heat exchangers with an additional bri
Externí odkaz:
https://doaj.org/article/018f220ebb704136ac356a20d265b2df
Publikováno v:
Energies, Vol 14, Iss 9, p 2647 (2021)
A database for flowing condensation of three hydrocarbons, namely propane (R290), isobutane (R600a), and propylene (R1270), is extended by experimental tests in a smooth tube and two microfinned tubes with an increase of heat exchange area of 1.51 an
Externí odkaz:
https://doaj.org/article/65b98fa69a31409896c20d12ad7d03f0
Autor:
Torsten Will, Ehsan Allymehr, Lena Schnabel, Armin Hafner, Ángel Á. Pardiñas, Geir Skaugen, Trygve Magne Eikevik
Publikováno v:
Energies, Vol 14, Iss 4480, p 4480 (2021)
Energies; Volume 14; Issue 15; Pages: 4480
Energies
Energies; Volume 14; Issue 15; Pages: 4480
Energies
Required refrigerant charge in heat pump systems with propane is analyzed. Two systems are compared: the first a direct heat pump, with fin-and-tube heat exchangers, and the second an indirect system, with plate heat exchangers with an additional bri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa04c00c9102d68774e62e18e8b74642
https://www.mdpi.com/1996-1073/14/15/4480
https://www.mdpi.com/1996-1073/14/15/4480
Publikováno v:
Applied Thermal Engineering
Data base for evaporation of flowing isobutane and propylene in compact internally enhanced surfaces is extended by experimental tests in two microfinned tubes and a smooth tube. The outer diameter for all of the test tubes was 5 mm. Heat transfer co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9c4fb4828520e3a009948186087f433
https://hdl.handle.net/11250/2730815
https://hdl.handle.net/11250/2730815
Publikováno v:
Applied Thermal Engineering
Evaporation of flowing propane and the effect of enhanced geometry on heat transfer coefficient and pressure drop is experimentally investigated. One smooth tube and two microfinned tubes with an outer diameter of 5 mm were tested. Heat transfer coef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13c518ac7d26d9e3fde0b582c0e6a37e
https://hdl.handle.net/11250/2727604
https://hdl.handle.net/11250/2727604
Autor:
Mostafa Akbari, Mohammad Ali Ehteram, Vahid Mousapour Khaneshan, Mohammad Hassan Shojaeefard, Ehsan Allymehr
Publikováno v:
Journal of Mechanical Science and Technology. 29:3277-3285
The deposition of micron sized lubricant oil droplets similar to oil droplets in blow-by gases of Internal combustion (IC) engines on a hot flat plate was studied using a round impinging jet configuration. Five parameters which simulate the different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2361b94d1f128f3b1558159b43167f64
https://doi.org/10.1007/s12206-015-0726-5
https://doi.org/10.1007/s12206-015-0726-5
Autor:
Ehsan Allymehr, Mohammad Reza Yosri, Mohammad Hassan Shojaeefard, Mohammad Ali Ehteram, Vahid Mousapour Khaneshan
Publikováno v:
Journal of the Brazilian Society of Mechanical Sciences and Engineering. 38:721-734
The impaction and deposition of engine oil micro-droplets (0.1–6 µm in diameter) injected from a round impinging jet on a cold flat plate has been studied numerically and experimentally. The effect of flow velocity, droplet size, H/D (distance bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14dcabcc49fded836cd834ec0fd5a425
https://doi.org/10.1007/s40430-015-0356-y
https://doi.org/10.1007/s40430-015-0356-y