Cooling technologies, the uptake has been used for a long time, but it is still not as widespread as it should be because it has a low cooling performance and problems in the development of technology. By caused by deterioration in the work of absorbing substance. From the research study found that factors that affect degeneration of the cooling technology for adsorption are: (1) the number and type of silica gel (2) And (3) having solid particles to block pores on the surface of silica gel. If we can develop and improve the efficiency of absorption of nutrients works and be able to promote the use of cooling technologies as widespread uptake.
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