Dynamic Optimization of Adsorptive Chillers: Compact Layer vs. Bed of Loose Grains
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Applied Thermal Engineering
ISSN: 1359-4311
, E-ISSN: 1873-5606
|
| Вых. Данные |
Год: 2017,
Том: 125,
Страницы: 823-829
Страниц
: 7
DOI:
10.1016/j.applthermaleng.2017.06.141
|
| Ключевые слова |
Activated carbon, Adsorption dynamics, Adsorptive chillers, Binder, Heat transfer enhancement, Methanol |
| Авторы |
Girnik I.S.
1,2
,
Grekova A.D.
1,2
,
Gordeeva L.G.
1,2
,
Aristov Yu.I.
1,2
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, Lavrentiev Ave., 5, Novosibirsk 630090, Russia
|
| 2 |
Novosibirsk State University, Pirogova Str., 2, Novosibirsk 630090, Russia
|
|
Информация о финансировании (1)
|
1
|
Федеральное агентство научных организаций России
|
0303-2016-0013
|
This paper addresses the dynamic study on methanol ad-/desorption in compact adsorbent layers, performed by a Volumetric Large Temperature Jump (V-LTJ) method, appropriate for dynamic examination of adsorptive chillers. The commercial active carbon ACM-35.4 was used as an adsorbent, and polyvinyl alcohol as a binder. The influence of the carbon grain size and the layer thickness on the V-LTJ dynamics was studied at a fixed binder content of 12 wt%. To single out the effect of consolidation, a detailed comparison was made with reference beds of the loose carbon grains, having the same configuration, however, containing no binder.
The following findings are reported for the compact layers: (i) near-exponential shape of the dynamic curves of methanol adsorption; (ii) invariance of the dynamics with respect to the ratio (S/m) = <heat transfer surface>/<adsorbent mass>; (iii) linear relationship between the maximal specific power and this ratio. For the compact layers, the process becomes faster by a factor of 1.5–3.5 as compared to the reference beds.