Innovative Materials for Novel Concepts for Internal Heat Exchangers

2018 ◽  
Vol 33 (4) ◽  
pp. 453-459
Author(s):  
A. Rüppel ◽  
D. Jähnig ◽  
R.-U. Giesen ◽  
K. Vajen ◽  
H.-P. Heim
Keyword(s):  
Heat Exchangers ◽  
Internal Heat ◽  
Innovative Materials

On the Benefits of Separating the Heat Transfer Section and Analyzing Elementary Thermodynamic Cycles in Energy Systems Analysis

2008 ◽  
Author(s):  
Matteo Morandin ◽  
Andrea Toffolo ◽  
Andrea Lazzaretto
Keyword(s):  
Heat Transfer ◽  
Heat Exchangers ◽  
System Analysis ◽  
Internal Heat ◽  
Energy Systems ◽  
Energy System ◽  
Heat Sinks ◽  
Additional Contribution ◽  
Thermodynamic Cycles ◽  
System Configurations

The search for increasing performance and efficiency in energy system analysis leads to complex and highly integrated systems configurations. In a wide variety of energy systems the high integration among components derives from the need of correctly exploiting all the internal heat sources by a proper matching with the internal heat sinks. To address this problem in a general way, in previous works it was suggested to extract from the system flowsheet a “basic configuration” including the components different from the heat exchangers (named “basic” components) and a set of hot and cold thermal flows (without considering the heat exchangers that realize the heat transfer among them). It was also shown how the comprehension of the processes occurring within the system can be strongly facilitated by analyzing separately the elementary thermodynamic cycles involved in the system processes. In this paper, a further step is done by considering the overall efficiency as a baseline efficiency, obtained from the contributions of the separate elementary cycles, with the additional contribution given by the thermal coupling (i.e. the internal heat transfer) among the cycles themselves. The advantages of this analysis are shown using the evolution of the STIG cycle towards more complex system configurations as an example of application.

Study on heat transfer and pressure drop characteristics of internal heat exchangers in CO2 system under cooling condition

2009 ◽  
Vol 46 (2) ◽  
pp. 187-196 ◽  
Author(s):  
Dae Hoon Kim ◽  
Jae-Heon Lee ◽  
Jun Young Choi ◽  
Young Chul Kwon
Keyword(s):  
Heat Transfer ◽  
Pressure Drop ◽  
Heat Exchangers ◽  
Internal Heat ◽  
Cooling Condition

scholarly journals Optimization of internal heat exchangers for hydrogen storage tanks utilizing metal hydrides

2012 ◽  
Vol 37 (3) ◽  
pp. 2850-2861 ◽  
Author(s):  
Stephen L. Garrison ◽  
Bruce J. Hardy ◽  
Mikhail B. Gorbounov ◽  
David A. Tamburello ◽  
Claudio Corgnale ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Heat Exchangers ◽  
Internal Heat ◽  
Metal Hydrides ◽  
Storage Tanks
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