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Electrochemical cycle for the conversion of the waste heat into electrical energy: the possibility of using in water transport

Vassel S., Vassel N.

Transport Problems

2018

T. 13, z. 3

79--84

We developed a concept and calculated an efficiency of the electrochemical cycle of converting low-grade heat (temperature difference 10-80°C) into electricity. The cycle could be divided into two stages: creating a concentration difference by a solution distilled in a temperature gradient and electricity generation in concentration galvanic cell. The calculation shows that the efficiency of converting heat into electricity could reach 40-55% of Carnot efficiency in a temperature range of 0-100°C in the case of use of a multi-cascade distiller. The calculations show that ratio power/mass of the device is too low to be used in automobile or air transport, but it could be used in water transport.

Methods of forecasting of stable heat regime of metal polymeric bushes of bearing of sliding operating on newton lubricant

Pavlova I., Vernyaeva L., Vassel N.

Transport Problems

2010

T. 5, z. 2

111-117

The purpose of this work was to develop the methods of forecasting of stable heat regime of metal polymeric bushes of bearing of sliding operating on Newton lubricant. It is shown that the most stable temperature regime of bearing work is achieved through non-dimensional temperature Θ*=0,5 in the case of low plastic lubricant (A<<1) and 0,8≤ Θ*≤0,95 in the case of high plastic lubricant(A>1).