Abstract
With the increase of energy demand, many researchers tried to develop scientific approaches in order to design more efficient and environmentally friendly energy systems. Exergo-economic (thermoeconomic) analysis of a system or device is an efficient tool for evaluating the system in terms of the thermodynamic and economic aspects. In this parametric study, exergo-economic analysis of rectangular copper plain microchannels under single-phase flow conditions were investigated using de-ionised water. The exergo-economic performance was evaluated based on the relative cost difference and unit cost per product exergy tools. The channel aspect ratio effect on the unit cost per product exergy and relative cost difference was examined using three microchannel test sections with the same channel hydraulic diameter (Dh = 0.56 mm) and length (L = 62 mm) but different aspect ratios (β = 0.5, 2.56 and 4.94) under single-phase flow conditions. The results showed that the exergo-economic performances of the three microchannel test sections decreased as the net heat input increased over the experimental range. Moreover, the exergo-economic performance of test section 2 (β = 4.94) was found to be greater than the exergo-economic performances of test sections 1 and 3 (β = 0.5 and 2.56) at fixed flow rate and fixed net heat input case.
Highlights
Recent advances in the industry brought the appearance of miniature technological devices in the market
Exergo-economic analysis of metallic rectangular microchannel heat sinks was investigated with varying aspect ratios (β) but fixed channel hydraulic diameter (Dh = 0.56 mm) and channel length (L = 62 mm) used under single-phase flow conditions, see Figure 3
In the calculation of cinv, annual operating hours were assumed as 2080 hours (8 hours/day & 5 days/week) and the microchannels were assumed to be in service for 14 years
Summary
Recent advances in the industry brought the appearance of miniature technological devices in the market. In order to evaluate the thermoeconomic performance, he utilised the unit cost per product exergy, relative cost difference, and exergo-economic factor.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
