The purpose of this study is to prepare some basic experimental data for mechanism study of Marangoni effect and to look for some more effective additives to substitute 2-ethyl-1-hexanol or 1-octanol which are widely used in lithium bromide absorption refrigeration system. In present study

absorption of water vapor into the 62 wt% lithium bromide solution with several six-carbon and seven-carbon alcohol additives such as 4-methyl-2-pentanol

2-ethyl-1-butanol

1-hexanol

2

4-dimethyl-3-pentanol

4-heptanol

2-heptanol

and 1-heptanol were investigated by using a simple stagnant pool absorber. The results show that effects of 1-hexanol and 1-heptanol on absorption of water vapor into aqueous lithium bromide solution are better than those of 2-ethyl-1-hexanol.