Experimental investigation of limit parameters of direct contact condensation in the heat exchanger for waste heat recovery

• Autorzy: Nazarova Iryna , Gutkowski Artur

Identyfikatory

DOI

10.24425/ather.2023.149729

• Języki publikacji: EN

Abstrakty

EN

In the present study, a suitable composition of parameters has been obtained to provide an efficient process of cooling flue gas with complete condensation of water vapour from air-water vapour mixture on a water film in co-current upward flow in the tube of the direct contact heat and mass exchanger. The results showed that the value of the irrigation density depends on the velocity of the air-water vapour mixture and the initial vapour content and should be calculated from an empirical equation. The active pipe height depends on the velocity of the air-water vapour mixture and the initial vapour content and should also be calculated from an empirical equation. For example, if the initial vapour content of the air-water vapour mixture is 11%, the velocity of the mixture is 20.8 m/s the height of the channel should not exceed 0.460 m. The value of the water heating limit temperature increases from 46°C to 62°C with a change in the initial vapour content from 11% to 30%. The present experimental results could be helpful in the design of direct contact heat and mass exchangers for waste heat recovery.

Słowa kluczowe

EN

direct contact heat mass exchanger; direct contact condensation; process of cooling flue gas; air-water vapour mixture

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2023
• Tom: Vol. 44, no. 4
• Strony: 463--482
• Opis fizyczny: Bibliogr. 34 poz., rys., tab.

Twórcy

autor

Nazarova Iryna

• Lodz University of Technology, Institute of Turbomachinery, Wolczanska 217/221, 93-005 Lodz, Poland

autor

Gutkowski Artur

• Lodz University of Technology, Institute of Turbomachinery, Wolczanska 217/221, 93-005 Lodz, Poland

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