Model-Based Performance Assessment and Optimisation of Waste Heat Recovery Systems for Containerships

2014 ◽  
Author(s):  
I C Stefanatos ◽  
◽  
G G Dimopoulos ◽  
N M P Kakalis ◽  
◽  
...  
Keyword(s):  
Performance Assessment ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Model Based

Thermodynamic performance assessment of SOFC-RC-KC system for multiple waste heat recovery

2021 ◽  
Vol 245 ◽  
pp. 114579
Author(s):  
Mengting Song ◽  
Yu Zhuang ◽  
Lei Zhang ◽  
Weida Li ◽  
Jian Du ◽  
...  
Keyword(s):  
Performance Assessment ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Thermodynamic Performance

scholarly journals Performance Assessment of Using Thermoelectric Generators for Waste Heat Recovery from Vapor Compression Refrigeration Systems

Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 8192
Author(s):  
Alaa Attar ◽  
Mohamed Rady ◽  
Abdullah Abuhabaya ◽  
Faisal Albatati ◽  
Abdelkarim Hegab ◽  
...  
Keyword(s):  
Performance Assessment ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Air Cooling ◽  
Refrigeration Cycle ◽  
Thermoelectric Generators ◽  
Vapor Compression ◽  
Good Opportunity ◽  
Vapor Compression Refrigeration

This article reports on an experimental analysis and performance assessment of using thermoelectric generators (TEGs) for waste heat recovery from residential vapor compression refrigeration systems. The analysis shows that there is a good opportunity for waste heat recovery using TEGs by de-superheating refrigerant after the compressor. Design and manufacturing of a de-superheater unit consisting of a tube and plate heat exchanger and thermoelectric generator modules (HE-TEGs) have been performed and integrated in an experimental test rig of R134a refrigeration cycle. Experimental assessment of the performance parameters, as compared to the basic refrigeration system, reveals that the overall coefficient of performance (COP) using HE-TEGs desuperheater unit increases by values ranging from 17% to 32% depending on the condenser and evaporator loads. Exergy analysis shows that the enhancement is attributed to reduction in the exergy destruction in the condenser and compressor due to lower values of condenser pressure and pressure ratio of the compressor. The output power of the HE-TEGs unit is found to be sufficient for driving the TEGs heat sinks air cooling fan, thus providing a passive de-superheating system without an additional external source of electricity. Further enhancement of the refrigeration cycle performance can be achieved by installation of additional HE-TEGs units.

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