Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Ragıp YILDIRIM"'
Autor:
Ragıp YILDIRIM, Ahmet ÖZSOY
Publikováno v:
Pamukkale University Journal of Engineering Sciences, Vol 24, Iss 4, Pp 591-596 (2018)
Kış aylarında derinliklere inildikçe toprak sıcaklığı artmakta ve belirli derinlikten sonrada değişmemektedir. Bu çalışmada, toprağın sahip olduğu enerjiden, toprak kaynaklı ısı borularıyla kaldırımlardaki buzlanmanın önlenmes
Externí odkaz:
https://doaj.org/article/9b930dc39c61400fa507124ecff0a93c
Autor:
Ragıp YILDIRIM
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 148:1061-1072
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae6bd31d29a6629da5062b4125780df4
https://doi.org/10.1007/s10973-022-11787-6
https://doi.org/10.1007/s10973-022-11787-6
Publikováno v:
Volume: 25, Issue: 1 125-133
International Journal of Thermodynamics
International Journal of Thermodynamics
In this study, hydrofluoroolefin R515B was used rather than hydrofluorocarbon R134a to perform energetic, exergetic, environmental and enviroeconomic analyses on vapor-compression refrigeration systems with internal heat exchangers. The exergy effici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06b2a24558cb37e5b383704eac326147
https://doi.org/10.5541/ijot.1011622
https://doi.org/10.5541/ijot.1011622
Publikováno v:
Volume: 11, Issue: 2 47-51
Teknik Bilimler Dergisi
Teknik Bilimler Dergisi
GWP oranı düşük soğutucu akışkanlar soğutma sistemlerinin karbon ayak izinin azaltılması için önemlidir. Bu çalışmada bir soğutma sisteminde R404A ve alternatifi olnan R454C soğutucu akışkanlarının enerji ve çevresel analizi yap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65bfa3c346506581966097a8d7bdde38
https://doi.org/10.35354/tbed.951070
https://doi.org/10.35354/tbed.951070
Autor:
Ragıp Yildirim, Abdullah Yildiz
Publikováno v:
Düzce Üniversitesi Bilim ve Teknoloji Dergisi. 8:1817-1828
Küresel ısınma Dünya gündeminin ana konularından birisidir. Dolayısıyla, soğutucu akışkanların çevresel etkilerini azaltmak için birçok çalışma ve düzenleme yapılmaktadır. Çevre dostu soğutucu akışkanların kullanılması so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f179f13232a6905a2b06c2c1270d9432
https://doi.org/10.29130/dubited.690197
https://doi.org/10.29130/dubited.690197
Autor:
Ragıp Yildirim, Abdullah Yildiz
Publikováno v:
International Journal of Environmental Science and Technology. 18:1201-1210
Various studies and arrangements have been made in recent years to reduce the effect of refrigerants used in cooling and heating systems on climate change. Environmentally friendly refrigerants with low global warming potential are required to reduce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e38c9cc664d4e3b013cb7fedadda7213
https://doi.org/10.1007/s13762-020-02857-z
https://doi.org/10.1007/s13762-020-02857-z
Publikováno v:
Journal of Polytechnic
Politeknik Dergisi
Politeknik Dergisi
The direct impact of refrigerants on the environment is largely dependent on the magnitude of global warming potential (GWP) values. In this regard, fluids with low GWP are very important for the environment. Commercial refrigeration accounts for abo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::257f1c4a49a5fbadcc7a663b5999408e
https://dergipark.org.tr/tr/pub/politeknik/issue/33364/1073335
https://dergipark.org.tr/tr/pub/politeknik/issue/33364/1073335
Publikováno v:
Volume: 8, Issue: 3 113-121
International Journal of Energy Applications and Technologies
International Journal of Energy Applications and Technologies
The use of new generation refrigerants in heating and cooling systems operating according to vapor compression cycles and the preference of renewable energy sources is very important to reduce the negative effects on the environment. Here, the energy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::117e774df5cc39bc3873f83a7198128b
https://dergipark.org.tr/tr/pub/ijeat/issue/66129/949316
https://dergipark.org.tr/tr/pub/ijeat/issue/66129/949316
Autor:
Ragıp Yildirim
Publikováno v:
Volume: 7, Issue: 4 556-569
Journal of Advanced Research in Natural and Applied Sciences
Journal of Advanced Research in Natural and Applied Sciences
This investigation presents a theoretical evaluation of the use R450A replace to R134a in the low and medium temperature heat pump systems. The energy, exergy, environmental and enviro-economic analyzes of heat pumps have been performed for two refri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b71530dad627ef78e56f44c5a97e83c
https://dergipark.org.tr/tr/pub/jarnas/issue/66083/939582
https://dergipark.org.tr/tr/pub/jarnas/issue/66083/939582
Publikováno v:
First iiScience International Conference 2020.
In this study, thermal properties of R134a/TiO2 and R513a/TiO2 such as thermal conductivity, density and dynamic viscosity , specific heat and convective heat transfer coefficient investigated. The TiO2 nanoparticles are average size of 10 nm and vol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48d2042d15d7d1d47302d53958361a7f
https://doi.org/10.1117/12.2574418
https://doi.org/10.1117/12.2574418