Efficiency comparison of thermodynamic cycles of lithium bromide-water absorption refrigeration machines
The energy efficiency analysis of the actual thermodynamic cycles of lithium bromide-water absorption refrigeration machines (ABLRM) with single- and multi-stage processes of absorption and generation and with associated mass flow is carried out. The temperature influence analysis of the heating a...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Autonomous Educational Institution of Higher Education
2020-06-01
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| Series: | Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение" |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/%D0%A2.%204,%20%E2%84%96%202%20(%D0%90%D0%A0%D0%B8%D0%AD%D0%9C)/27-36%20%D0%9C%D0%B0%D0%BB%D0%B8%D0%BD%D0%B8%D0%BD%D0%B0%20%D0%9E.%20%D0%A1.,%20%D0%91%D0%B0%D1%80%D0%B0%D0%BD%D0%B5%D0%BD%D0%BA%D0%BE%20%D0%90.%20%D0%92..pdf |
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| Summary: | The energy efficiency analysis of the actual thermodynamic cycles of lithium bromide-water absorption
refrigeration machines (ABLRM) with single- and multi-stage processes of absorption and generation and
with associated mass flow is carried out. The temperature influence analysis of the heating and cooling
sources on the heat coefficient is performed. Parameters of external sources that allow implementation
of these thermodynamic cycles are determined. Meanwhile, for cycles with two-stage absorption and
generation processes, a heating source with temperature (20–24)°C lower in comparison with the
basic single-stage cycle, and for a cycle with three-stage processes–lower by (27–30)°C is required.
It has been established that with the accepted parameters of external sources, the actual coefficient of
performance is within the limits: for a single-stage ABLRM) it is 0,68–0,74, for a two-stage ABLRM, it is
0,36–0,39 and for a three-stage ABLRM, it is 0,24–0,26 |
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| ISSN: | 2588-0373 2587-764X |