PECULIARITIES OF OFF-DESIGN OPERATION MODE OF AIR-CONDENSER OF LARGE-CAPACITY AMMONIA REFRIGERATING PLANT

Authors

  • Г. К. Лавренченко ООО «Институт низкотемпературных энерготехнологий», а/я 188, г. Одесса, Украина, 65026, Ukraine https://orcid.org/0000-0002-8239-7587
  • А. В. Копытин ООО «Институт низкотемпературных энерготехнологий», а/я 188, г. Одесса, Украина, 65026, Ukraine https://orcid.org/0000-0003-3514-0989
  • Л. В. Тимошевская ООО «Институт низкотемпературных энерготехнологий», а/я 188, г. Одесса, Украина, 65026, Ukraine https://orcid.org/0000-0002-1896-4890

DOI:

https://doi.org/10.18198/j.ind.gases.2015.0783

Keywords:

ammonia refrigerating plant, ammonia condensation, ammonia air-cooled condenser, condenser heat-exchange area, ammonia condensation temperature, temperature driving force, cooling air fan, ammonia consumption/flow, output capacity, required power

Abstract

Air cooling units are widely used in the chemical industry for condensation of ammonia. Generally they are manufactured as per a special design. Air-condenser design features of a large-capacity ammonia refrigerating system and the actual performance of its work are considered. The effect of different modes of operation of fans on the efficiency of the condenser are established. Two algorithms of putting cooling air fans into operation are proposed. The first one involves their consequent putting into operation. First, all odd fans located first along the path of ammonia, and then the even ones. The second algorithm is characterized by first putting into operation even fans located second along the path of ammonia and then the odd ones. Fans are put into operation symmetrically from the center of the condenser. Analysis showed that the second algorithm of using fans is preferable. The practical application of the new algorithm will allow the fans to adjust the condenser heat load, to stabilize its performance and reduce power consumption for fan drive.

Author Biographies

Г. К. Лавренченко, ООО «Институт низкотемпературных энерготехнологий», а/я 188, г. Одесса, Украина, 65026

G.K. Lavrenchenko

А. В. Копытин, ООО «Институт низкотемпературных энерготехнологий», а/я 188, г. Одесса, Украина, 65026

А.V. Kopytin

Л. В. Тимошевская, ООО «Институт низкотемпературных энерготехнологий», а/я 188, г. Одесса, Украина, 65026

L.V. Timoshevskaya

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Issue

No. 4 (2015): Технические газы

Section

PROCESSES, CYCLES, SCHEMES AND THE EQUIPMENT OF REFRIGERATION AND CRYOGENIC SYSTEMS

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