Influence of Characteristics of Methanol Sorbents “Salts in Mesoporous Silica” on the Performance of Adsorptive Air Conditioning Cycle
In this paper a new family of methanol sorbents “salts in mesoporous silica” is proposed for utilization in an adsorptive air conditioner driven by a low-temperature heat (T = 338−373 K). The methanol sorption capacity of composites, under typical cooling cycle conditions, was measured by an express...
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Published in | Industrial & engineering chemistry research Vol. 46; no. 9; pp. 2747 - 2752 |
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Main Authors | , , , |
Format | Journal Article |
Language | English Russian |
Published |
Washington, DC
American Chemical Society
25.04.2007
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Online Access | Get full text |
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Summary: | In this paper a new family of methanol sorbents “salts in mesoporous silica” is proposed for utilization in an adsorptive air conditioner driven by a low-temperature heat (T = 338−373 K). The methanol sorption capacity of composites, under typical cooling cycle conditions, was measured by an express method based on the Polanyi principle of temperature invariance. An estimation of the cooling coefficient of performance (COP) was carried out in order to compare the performance of such sorbents with other methanol and water sorbents. Results obtained showed that most of the synthesized composites present methanol sorption ability higher than that of common methanol sorbents (e.g., active carbons). The composite LiCl (30.6 wt %)/SiO2 shows the highest sorption capacity, w ads = 0.8 g/g, and uptake variation per cycle, Δw = 0.71 g/g. The corresponding cooling COP is 0.74 (maximum T des = 363 K, single-bed cycle), which is comparable to typical COP values for the best water sorbents. |
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Bibliography: | istex:5C969FB255B1A011780FE21FEDCD36676C83EB81 ark:/67375/TPS-3XS96L8J-6 |
ISSN: | 0888-5885 1520-5045 |
DOI: | 10.1021/ie060666n |