| | |
| | |
Stat |
Members: 3643 Articles: 2'488'730 Articles rated: 2609
29 March 2024 |
|
| | | |
|
Article overview
| |
|
Performance Bounds of Nanoparticles Laden Volumetric Absorption Solar Thermal Platforms in Laminar Flow Regime | Apoorva Singh
; Manish Kumar
; Vikrant Khullar
; | Date: |
12 Nov 2019 | Abstract: | Recent success in synthesizing thermally stable nanofluids at low costs is a
significant breakthrough in the evolution of volumetric absorption based solar
thermal systems. However, we have yet not been able to clearly identify the
range of operating and design parameters in which volumetric absorption could
prove to be beneficial. One of the key reasons being that we have not been able
to fully understand the heat transfer mechanisms involved in these novel
systems. The present work takes a few steps further in this direction wherein
we have developed a comprehensive and mechanistic theoretical framework which
is robust enough to account for coupled transport phenomena and orders of
magnitudes of operating parameters for host of receiver design configurations.
Moreover, we have also modeled equivalent surface absorption based systems to
provide a comparison between volumetric and surface absorption processes under
similar operating conditions. Performance characteristics reveal that
particularly at high solar concentration ratios, volumetric absorption-based
receivers could have 35% - 49% higher thermal efficiencies compared to their
surface absorption-based counterparts. Finally, the present work serves to
define optimal performance domains of these solar thermal systems, particularly
in the laminar flow regime (200 < Re < 1600) and over a wide range of solar
concentration ratios (5-100) and inlet fluid temperatures (293-593K). | Source: | arXiv, 1911.4802 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |