Effect of adsorbent configuration on performance enhancement of continuous solar adsorption chiller with four quadric parabolic concentrators
| Autor: | K. Goudarzi, E. Jalil |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
060102 archaeology Renewable Energy Sustainability and the Environment 020209 energy Mass flow Analytical chemistry 06 humanities and the arts 02 engineering and technology Coefficient of performance chemistry.chemical_compound Adsorption chemistry Chilled water 0202 electrical engineering electronic engineering information engineering Annulus (firestop) medicine 0601 history and archaeology Methanol Evaporator Activated carbon medicine.drug |
| Zdroj: | Renewable Energy. 158:360-369 |
| ISSN: | 0960-1481 |
| DOI: | 10.1016/j.renene.2020.05.138 |
| Popis: | In this paper, the effect of various adsorbents with different geometry on the coefficient of performance (COP) and specific cooling power (SCP) of solar adsorption chiller with four quadric parabolic concentrators and also with activated carbon/methanol as working pair has been examined experimentally. The experiments were carried out by several adsorbents involving of simple adsorbent (SAD), annulus adsorbent (AAD), modified annulus adsorbent (MAAD), and combination of modified annulus and simple adsorbent (CMASD). Each adsorbent bed filled by 200 g activated carbon. Results compared at two inlet chilled water temperatures of 30 °C and 25 °C, three mass flow rates passing from evaporator of 0.1, 0.15 and 0.18 kg s−1 that associated with the Reynolds number of 600, 1000 and 1200, respectively. The highest COP and SCP of 0.527 and 170.1 W kg-1 was obtained for combination of modified annulus and simple adsorbent (CMASD) with Tin = 30 °C and Re = 1200 (ṁ = 0.18 kgs−1), respectively. The maximum values of COP of 0.4835, 0.4395 and 0.4307 and also maximum values of SCP of 124.5, 113.24 and 111.3 W kg-1 were obtained for modified annulus adsorbent (MAAD), annulus adsorbent (AAD), simple adsorbent (SAD) with Tin = 30 °C and Re = 1200 (ṁ = 0.18 kgs−1), respectively. |
| Databáze: | OpenAIRE |
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