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Experimental research of fluids against icing of overhead wires
Málek, Jan ; Polach, Pavel (referee) ; Galas, Radovan (advisor)
In this thesis, commercially available anti-icing fluids were tested. A methodology of assessment was designed for the effect of anti-icing fluids on the rapidity of ice growth and its development over time. These tests were conducted on a device constructed for the purpose of the thesis. The solutions were tested for their effect on the ice adhesion to a contact wire. The effect of the solutions on the tribological behaviour of the collector strip and contact wire was described. The experiments were supplemented by mensuration of the size of the contact angle of the solutions on the copper surface. However, these fluids anti-icing effect is relatively short-term. On the contrary, the thesis shows that even a small amount of anti-icing solution on the surface of the contact wire can help to significantly lower the ice adhesion.
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Conceptual design of device for application of anti-icing agents on overhead catenary
Rohánek, Tomáš ; Kvarda, Daniel (referee) ; Omasta, Milan (advisor)
This bachelor’s thesis deals with icing of overhead contact lines. Relevant patents and existing commercial systems for applying anti-icing agents are comprehensively described and evaluated in the thesis. Based on that, two new concepts for public transportation are proposed. Compared to the existing systems, these concepts bring improvement in operational parameters and expand the number of products offered at the market. Afterwards, both concepts are critically assessed.
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Experimental research of fluids against icing of overhead wires
Málek, Jan ; Polach, Pavel (referee) ; Galas, Radovan (advisor)
In this thesis, commercially available anti-icing fluids were tested. A methodology of assessment was designed for the effect of anti-icing fluids on the rapidity of ice growth and its development over time. These tests were conducted on a device constructed for the purpose of the thesis. The solutions were tested for their effect on the ice adhesion to a contact wire. The effect of the solutions on the tribological behaviour of the collector strip and contact wire was described. The experiments were supplemented by mensuration of the size of the contact angle of the solutions on the copper surface. However, these fluids anti-icing effect is relatively short-term. On the contrary, the thesis shows that even a small amount of anti-icing solution on the surface of the contact wire can help to significantly lower the ice adhesion.
|
|
|
Conceptual design of device for application of anti-icing agents on overhead catenary
Rohánek, Tomáš ; Kvarda, Daniel (referee) ; Omasta, Milan (advisor)
This bachelor’s thesis deals with icing of overhead contact lines. Relevant patents and existing commercial systems for applying anti-icing agents are comprehensively described and evaluated in the thesis. Based on that, two new concepts for public transportation are proposed. Compared to the existing systems, these concepts bring improvement in operational parameters and expand the number of products offered at the market. Afterwards, both concepts are critically assessed.
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