LAPSE:2019.0949
Published Article
LAPSE:2019.0949
Modeling of a Double Effect Heat Transformer Operating with Water/Lithium Bromide
Itzel N. Balderas-Sánchez, J. Camilo Jiménez-García, Wilfrido Rivera
August 14, 2019
Absorption heat transformers are effective systems for a wide variety of applications; however, their main purpose is to upgrade thermal energy from several sources at low-temperature up to a higher temperature level. In the literature, several advanced configurations for absorption heat transformers have been reported which are mainly focused on the improvement of the gross temperature lift by the use of a double absorption process; however, these systems usually offer a reduced coefficient of performance. The present study proposes a new advanced configuration of an absorption heat transformer that improves the coefficient of performance utilizing a double generation process. The operation of the new configuration was numerically modeled, and the main findings were discussed and presented emphasizing the effect of several parameters on the system performance. The highest coefficient of performance and gross temperature lift were 0.63 and 48 °C, respectively. From its comparison with a single-stage heat transformer, it is concluded that the proposed system may achieve coefficient of performance values up to 25.8% higher than those obtained with the single-stage system, although achieving lower gross temperature lifts.
Keywords
absorption heat transformer, COP enhancement, thermal energy upgrade, water-lithium bromide
Suggested Citation
Balderas-Sánchez IN, Jiménez-García JC, Rivera W. Modeling of a Double Effect Heat Transformer Operating with Water/Lithium Bromide. (2019). LAPSE:2019.0949
Author Affiliations
Balderas-Sánchez IN: Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco 62580, Mexico
Jiménez-García JC: Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco 62580, Mexico [ORCID]
Rivera W: Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco 62580, Mexico
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Journal Name
Processes
Volume
7
Issue
6
Article Number
E371
Year
2019
Publication Date
2019-06-14
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr7060371, Publication Type: Journal Article
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LAPSE:2019.0949
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doi:10.3390/pr7060371
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Aug 14, 2019
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CC BY 4.0
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Aug 14, 2019
 
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Calvin Tsay
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