Comparison of single and double stage absorption and resorption heat transformers operating with the ammonia-lithium nitrate mixture

The study analyzed the possibility of using the acoustic emission method to analyse the reaction of alkali with aggregate in the presence of lithium nitrate. Lithium nitrate is a chemical admixture used to reduce adverse effects of corrosion. The tests were carried out using mortars with reactive opal aggregate, stored under the conditions defined by ASTM C227. The acoustic activity of mortars with a corrosion inhibitor was referred to linear changes and microstructure of specimens in the initial reaction stages. The study found a low acoustic activity of mortars with lithium nitrate. Analysis of characteristic parameters of acoustic emission signals, combined with the observation of changes in the microstructure, made it possible to describe the corrosion processes. As the reaction progressed, signals with different characteristics were recorded, indicating aggregate cracking at the initial stage of the reaction, followed by cracking of the cement paste. The results, which were referred to the acoustic activity of reference mortars, confirmed that the reaction of opal aggregate with alkali was mitigated in mortars with lithium nitrate, and the applied acoustic emission method enabled the detection and monitoring of ASR progress.

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Conductivity and viscosity of dilute solutions of lithium nitrate and cadmium iodide in binary and ternary mixtures of acetone with methyl alcohol, ethyl alcohol and water

Zeitschrift für Physikalische Chemie ◽

10.1515/zpch-1909-0128 ◽

1909 ◽

Vol 69 (1) ◽

Cited By ~ 4

Author(s):

Harry C. Jones ◽

Edward G. Mahin

Keyword(s):

Ethyl Alcohol ◽

Methyl Alcohol ◽

Ternary Mixtures ◽

Lithium Nitrate ◽

Cadmium Iodide ◽

Dilute Solutions ◽

Binary And Ternary Mixtures ◽

Alcohol Ethyl

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Flow boiling heat transfer characteristics and pressure drop of ammonia-lithium nitrate solution in a smooth horizontal tube

International Journal of Heat and Mass Transfer ◽

10.1016/j.ijheatmasstransfer.2016.12.004 ◽

2017 ◽

Vol 108 ◽

pp. 220-231 ◽

Cited By ~ 8

Author(s):

Jingkai Jiang ◽

Guogeng He ◽

Yilin Liu ◽

Yue Liu ◽

Dehua Cai

Keyword(s):

Heat Transfer ◽

Pressure Drop ◽

Boiling Heat Transfer ◽

Flow Boiling ◽

Nitrate Solution ◽

Horizontal Tube ◽

Lithium Nitrate ◽

Heat Transfer Characteristics ◽

Transfer Characteristics ◽

Flow Boiling Heat Transfer

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CONDUCTANCES OF LITHIUM NITRATE SOLUTIONS IN ETHYL ALCOHOL AND ETHYL ALCOHOL - WATER MIXTURES AT 25.0 °C.

Canadian Journal of Chemistry ◽

10.1139/v56-160 ◽

1956 ◽

Vol 34 (9) ◽

pp. 1232-1242 ◽

Cited By ~ 15

Author(s):

A. N. Campbell ◽

G. H. Debus

Keyword(s):

No Value ◽

Ethyl Alcohol ◽

Pure Water ◽

Lithium Ion ◽

Water Molecules ◽

Lithium Nitrate ◽

Absolute Alcohol ◽

Pure Alcohol ◽

Alcohol Water ◽

Nitrate Solutions

The conductances of solutions of lithium nitrate in 30, 70, and 100 weight per cent ethyl alcohol have been determined at concentrations ranging from 0.01 molar up to saturation, at 25 °C. The densities and viscosities of these solutions have also been determined. The data have been compared with the calculated conductances obtained from the Wishaw–Stokes equation. The agreement is fairly good up to, say, 2 M, for all solvents except absolute alcohol. In the latter solvent there is no value of å, the distance of closest approach, which will give consistent values of the equivalent conductance. In passing from pure water to pure alcohol, the value of å increases progressively and this we attribute to a change in the solvation of the lithium ion from water molecules to alcohol molecules. Some further calculations incline us to the view that the nitrate ion, as well as the lithium ion, is solvated to some extent, at least in alcohol.

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