Zobrazeno 1 - 10
of 229
pro vyhledávání: '"Harald Klein"'
Publikováno v:
International Journal of Automotive Engineering, Vol 15, Iss 1, Pp 58-65 (2024)
A new two-phase mass transfer Computational Fluid Dynamics (CFD) method is developed using a meshfree collocation approach, or Generalized Finite Difference Method (GFDM), to resolve the evaporation phenomenon at the waterair interface since it is es
Externí odkaz:
https://doaj.org/article/e50a176e523942d9ac8b09379922c482
Autor:
Ghada Bassioni, Harald Klein
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 2, Pp 102431- (2024)
Within the supply chain for the production of natural gas, the liquefaction process is regarded as having the highest energy consumption and expense. This analysis demonstrates how this procedure may be made substantially more efficient while using l
Externí odkaz:
https://doaj.org/article/7e5dfa3e68d5497baa9196c3dc0fd503
Publikováno v:
Energies, Vol 17, Iss 4, p 920 (2024)
In the light of increasingly valuable resources and a trend towards more efficient processes pushed by climate change, distributed Waste Heat Recovery (WHR) is an important element in the transformation of the energy supply. In recent years, however,
Externí odkaz:
https://doaj.org/article/c2a9d2bc6890489c819d1d303fd392e2
Publikováno v:
ChemEngineering, Vol 5, Iss 4, p 82 (2021)
The design of a multi-stream plate-fin heat exchanger is a highly integrated task with multiple opposing objectives and many degrees of freedom. This work shows how it can be fully or partially automated by the combination of a detailed three-dimensi
Externí odkaz:
https://doaj.org/article/84ef2b4746d9424a9507be150df56651
Publikováno v:
Energies, Vol 14, Iss 13, p 4037 (2021)
Rotary heat exchangers have been widely used in paint shops, combustion power plants, and in heating, ventilation, and air conditioning systems in buildings. For these processes, many types of heat exchangers are available in the market: Tube-shell h
Externí odkaz:
https://doaj.org/article/6552559152f94f5b8eaf8e31d7449c66
Publikováno v:
Energies, Vol 14, Iss 1, p 10 (2020)
In the last 50 years, the technology of rotary heat exchangers has not changed considerably. A reliable simulation can help improve the design of this technology. In this work, a simulation for rotary heat exchangers was developed and validated with
Externí odkaz:
https://doaj.org/article/992555213f6c43c69a7bd1df71e703d2
Autor:
Patrick Haider, Pascal Freko, Stefan Lochner, Thomas Reiter, Sebastian Rehfeldt, Harald Klein
Publikováno v:
Chemical Engineering Transactions, Vol 69 (2018)
The Kopernikus project “FlexASU” investigates an enhancement of the load flexibility of air separation units with the goal to synchronize their power consumption with the availability of renewable energy sources. The main heat exchanger of these
Externí odkaz:
https://doaj.org/article/83c36528bf0249e981ace1c8769064af
Publikováno v:
Chemical Engineering Transactions, Vol 69 (2018)
Liquid maldistribution is, next to the prediction of interfacial phase area and mass transfer coefficients, one of the bigger uncertainties in random packed column design. In a joint project, “Cell Model for Packed Column and Liquid Distributor Des
Externí odkaz:
https://doaj.org/article/ea6ea6def6054f9fa4d887384a2f26bd
Autor:
Simon Hill, Thomas Acher, Rainer Hoffmann, Johann Ferstl, Daniel Deising, Holger Marschall, Sebastian Rehfeldt, Harald Klein
Publikováno v:
Chemical Engineering Transactions, Vol 69 (2018)
This study presents the derivation and validation of a model that permits simulation of interfacial species transfer in rectification and absorption processes in the context of the algebraic Volume-of-Fluid (VoF) approach. The model is based on the C
Externí odkaz:
https://doaj.org/article/a3defc6b96704f3ebecf99faf84d4a9e
Autor:
Robert Kender, Bernd Wunderlich, Ingo Thomas, Andreas Peschel, Sebastian Rehfeldt, Harald Klein
Publikováno v:
Chemical Engineering Transactions, Vol 69 (2018)
At the moment, the change in power generation from fossil energy sources to renewables poses several challenges to the energy system and major energy consumers such as cryogenic air separation plants. Due to a more volatile power generation and the l
Externí odkaz:
https://doaj.org/article/61a2193d2e774e7c8ded753b87ca1c35