Silica gel multilayer desiccant hollow cylinder bed for axial flow dehumidification adsorption operations
Energy consumption is increasing gradually every year. It is caused by the growth of air conditioning need in response to higher summer temperature resulted from climate changes. Consequently, this causes an increase in electricity demand. Solar cooling is a relatively new, reliable and clean ene...
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| Format: | Monograph |
| Language: | English |
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Universiti Sains Malaysia
2019
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| Online Access: | http://eprints.usm.my/58466/1/Silica%20gel%20multilayer%20desiccant%20hollow%20cylinder%20bed%20for%20axial%20flow%20dehumidification%20adsorption%20operations.pdf |
| _version_ | 1825907903133908992 |
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| author | Nasir, Mohammad Nazmi Mohammad |
| author_facet | Nasir, Mohammad Nazmi Mohammad |
| author_sort | Nasir, Mohammad Nazmi Mohammad |
| collection | USM |
| description | Energy consumption is increasing gradually every year. It is caused by the
growth of air conditioning need in response to higher summer temperature resulted
from climate changes. Consequently, this causes an increase in electricity demand.
Solar cooling is a relatively new, reliable and clean energy application of proven
refrigeration technology that able to improve comfort conditions. This technology
also limits the impact on the environment and conserves energy. The main element in
desiccant cooling system is the desiccator. In this study, single and two layer hollow
test bed were made. The adsorption ability of silica gels as the solid desiccant
materials also tested under varied inlet air velocity (1.0 m/s, 1.2m/s, 1.5 m/s, 2.15 m/s,
3.7m/s and 4.9 m/s. The result show that increase in inlet air velocity value cause
reduction in adsorption rate of the desiccant bed. This trend can be seen for both
single and double layer desiccant bed experiment. However, the experimental setup
requires a stable humidification capability for the adsorption experiment. Mist spray
method has been selected to be used in the humidity addition system. The
performance of 4 and 9 numbers of nozzles under vertical, parallel and counter flow
arrangement have been analysed for air velocity from 1 m/s to 6.2 m/s, relative
humidity between 59% and 78% and room temperature from 28.5 ˚C to 30.2 ˚C. The
data shows that the humidification effect is directly proportional to the number of
nozzle. The highest relative humidity is recorded at 88.4% in 9 numbers of nozzle use
under vertical flow. The performances of vertical and counter flow are further tested
with nozzle arrangement of 2, 4, 6 and 8. The data collected show that highest relative
produce was by 8 nozzles under vertical flow at 89.8%. |
| first_indexed | 2024-03-06T16:11:02Z |
| format | Monograph |
| id | usm.eprints-58466 |
| institution | Universiti Sains Malaysia |
| language | English |
| last_indexed | 2024-03-06T16:11:02Z |
| publishDate | 2019 |
| publisher | Universiti Sains Malaysia |
| record_format | dspace |
| spelling | usm.eprints-584662023-05-11T07:32:34Z http://eprints.usm.my/58466/ Silica gel multilayer desiccant hollow cylinder bed for axial flow dehumidification adsorption operations Nasir, Mohammad Nazmi Mohammad T Technology TJ Mechanical engineering and machinery Energy consumption is increasing gradually every year. It is caused by the growth of air conditioning need in response to higher summer temperature resulted from climate changes. Consequently, this causes an increase in electricity demand. Solar cooling is a relatively new, reliable and clean energy application of proven refrigeration technology that able to improve comfort conditions. This technology also limits the impact on the environment and conserves energy. The main element in desiccant cooling system is the desiccator. In this study, single and two layer hollow test bed were made. The adsorption ability of silica gels as the solid desiccant materials also tested under varied inlet air velocity (1.0 m/s, 1.2m/s, 1.5 m/s, 2.15 m/s, 3.7m/s and 4.9 m/s. The result show that increase in inlet air velocity value cause reduction in adsorption rate of the desiccant bed. This trend can be seen for both single and double layer desiccant bed experiment. However, the experimental setup requires a stable humidification capability for the adsorption experiment. Mist spray method has been selected to be used in the humidity addition system. The performance of 4 and 9 numbers of nozzles under vertical, parallel and counter flow arrangement have been analysed for air velocity from 1 m/s to 6.2 m/s, relative humidity between 59% and 78% and room temperature from 28.5 ˚C to 30.2 ˚C. The data shows that the humidification effect is directly proportional to the number of nozzle. The highest relative humidity is recorded at 88.4% in 9 numbers of nozzle use under vertical flow. The performances of vertical and counter flow are further tested with nozzle arrangement of 2, 4, 6 and 8. The data collected show that highest relative produce was by 8 nozzles under vertical flow at 89.8%. Universiti Sains Malaysia 2019-05 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/58466/1/Silica%20gel%20multilayer%20desiccant%20hollow%20cylinder%20bed%20for%20axial%20flow%20dehumidification%20adsorption%20operations.pdf Nasir, Mohammad Nazmi Mohammad (2019) Silica gel multilayer desiccant hollow cylinder bed for axial flow dehumidification adsorption operations. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Mekanik. (Submitted) |
| spellingShingle | T Technology TJ Mechanical engineering and machinery Nasir, Mohammad Nazmi Mohammad Silica gel multilayer desiccant hollow cylinder bed for axial flow dehumidification adsorption operations |
| title | Silica gel multilayer desiccant hollow cylinder bed for axial flow dehumidification adsorption operations |
| title_full | Silica gel multilayer desiccant hollow cylinder bed for axial flow dehumidification adsorption operations |
| title_fullStr | Silica gel multilayer desiccant hollow cylinder bed for axial flow dehumidification adsorption operations |
| title_full_unstemmed | Silica gel multilayer desiccant hollow cylinder bed for axial flow dehumidification adsorption operations |
| title_short | Silica gel multilayer desiccant hollow cylinder bed for axial flow dehumidification adsorption operations |
| title_sort | silica gel multilayer desiccant hollow cylinder bed for axial flow dehumidification adsorption operations |
| topic | T Technology TJ Mechanical engineering and machinery |
| url | http://eprints.usm.my/58466/1/Silica%20gel%20multilayer%20desiccant%20hollow%20cylinder%20bed%20for%20axial%20flow%20dehumidification%20adsorption%20operations.pdf |
| work_keys_str_mv | AT nasirmohammadnazmimohammad silicagelmultilayerdesiccanthollowcylinderbedforaxialflowdehumidificationadsorptionoperations |