Evaluation of combined effect of organic and inorganic inhibitors on the metals used in absorption refrigeration system
- Hyundai Heavy Industries Co. Ltd., Ulsan (Korea, Republic of). Hyundai Industrial Research Inst.
To develop environment-friendly inhibitors for the metals used in the absorption refrigeration system, inhibition efficiencies of six different combinations of inhibitors were evaluated in 64wt%LiBr solution at 160 C. Double and triple combinations of inhibitors, such as lithium molybdate (Li{sub 2}MoO{sub 4}, inorganic), lithium hydroxide (LiOH, inorganic), and benzotriazole (BTA, organic) were evaluated for their efficiencies in corrosion inhibition of copper and mild steel. Results from weight-loss tests showed that the double inhibitor combinations were less effective for topper than for mild steel, whereas the triple inhibitor combination of 0.2wt%LiOH + 0.02wt%Li{sub 2}MoO{sub 4} + 0.05wt%BTA was most effective and it showed much better performance than any other double inhibitor combinations including the commercial products. This formula, of which inhibition efficiency was predicted to be about 83% for copper and 96% for mild steel, can replace the commercial grade inhibitors containing lithium chromate (Li{sub 2}CrO{sub 4})
- OSTI ID:
- 696990
- Report Number(s):
- CONF-990401--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evaluation of potential performance additives for the advanced lithium bromide chiller
Influence of Near-Surface Severe Plastic Deformation of Mild Steel on the Inhibition Performance of Sodium Molybdate and 1H-Benzotriazole in Artificial Sea Water