Abstract
A theoretical study of a lithium bromide absorption heat pump, used as a machine type I and aimed to produce heat at 120{sup 0}C via waste heat sources at 60{sup 0}C, is given. Real performance conditions are stated for each component of the machine. By means of thermodynamic diagrams (p, t, x) and (h, x), the required data are obtained for calculation of the heat recovered in the evaporator Q{sub e}, the heat delivered to the absorber Q{sub a} and to the condenser Q{sub c}, and the heat supplied to the generator Q{sub g}. The heat delivered by the hot solution to the cold solution in the heat recovered Q{sub r}, and the work W{sub p} done by the solution pump are calculated. The probable COP is calculated as close to 1.4 and the working temperature in the generator ranges from 178 to 200{sup 0}C. The heat produced by the heat pump is 22% cheaper than that obtained from a cogeneration system comprising a natural gas internal combustion engine and high temperature heat pump with mechanical compression. Compared with a high temperature heat pump with mechanical compression, the heat produced by the absorption heat pump is 31% cheaper. From (h,
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Izquierdo, M;
[1]
Aroca, S
[2]
- Consejo Superior de Investigaciones Cientificas, Madrid (ES). Inst. de Optica
- Escuela Tecnica Superior de Ingenieros Industriales, Valladolid (ES). Catedratico de Ingenieria Termica
Citation Formats
Izquierdo, M, and Aroca, S.
Lithium bromide high-temperature absorption heat pump: coefficient of performance and exergetic efficiency.
United Kingdom: N. p.,
1990.
Web.
doi:10.1002/er.4440140304.
Izquierdo, M, & Aroca, S.
Lithium bromide high-temperature absorption heat pump: coefficient of performance and exergetic efficiency.
United Kingdom.
https://doi.org/10.1002/er.4440140304
Izquierdo, M, and Aroca, S.
1990.
"Lithium bromide high-temperature absorption heat pump: coefficient of performance and exergetic efficiency."
United Kingdom.
https://doi.org/10.1002/er.4440140304.
@misc{etde_7064148,
title = {Lithium bromide high-temperature absorption heat pump: coefficient of performance and exergetic efficiency}
author = {Izquierdo, M, and Aroca, S}
abstractNote = {A theoretical study of a lithium bromide absorption heat pump, used as a machine type I and aimed to produce heat at 120{sup 0}C via waste heat sources at 60{sup 0}C, is given. Real performance conditions are stated for each component of the machine. By means of thermodynamic diagrams (p, t, x) and (h, x), the required data are obtained for calculation of the heat recovered in the evaporator Q{sub e}, the heat delivered to the absorber Q{sub a} and to the condenser Q{sub c}, and the heat supplied to the generator Q{sub g}. The heat delivered by the hot solution to the cold solution in the heat recovered Q{sub r}, and the work W{sub p} done by the solution pump are calculated. The probable COP is calculated as close to 1.4 and the working temperature in the generator ranges from 178 to 200{sup 0}C. The heat produced by the heat pump is 22% cheaper than that obtained from a cogeneration system comprising a natural gas internal combustion engine and high temperature heat pump with mechanical compression. Compared with a high temperature heat pump with mechanical compression, the heat produced by the absorption heat pump is 31% cheaper. From (h, x) and (s, x) diagrams, exergy losses for each component can be determined leading to an exergetic efficiency of 75% which provides the quality index of the absorption cycle. (author).}
doi = {10.1002/er.4440140304}
journal = []
volume = {14:3}
journal type = {AC}
place = {United Kingdom}
year = {1990}
month = {Apr}
}
title = {Lithium bromide high-temperature absorption heat pump: coefficient of performance and exergetic efficiency}
author = {Izquierdo, M, and Aroca, S}
abstractNote = {A theoretical study of a lithium bromide absorption heat pump, used as a machine type I and aimed to produce heat at 120{sup 0}C via waste heat sources at 60{sup 0}C, is given. Real performance conditions are stated for each component of the machine. By means of thermodynamic diagrams (p, t, x) and (h, x), the required data are obtained for calculation of the heat recovered in the evaporator Q{sub e}, the heat delivered to the absorber Q{sub a} and to the condenser Q{sub c}, and the heat supplied to the generator Q{sub g}. The heat delivered by the hot solution to the cold solution in the heat recovered Q{sub r}, and the work W{sub p} done by the solution pump are calculated. The probable COP is calculated as close to 1.4 and the working temperature in the generator ranges from 178 to 200{sup 0}C. The heat produced by the heat pump is 22% cheaper than that obtained from a cogeneration system comprising a natural gas internal combustion engine and high temperature heat pump with mechanical compression. Compared with a high temperature heat pump with mechanical compression, the heat produced by the absorption heat pump is 31% cheaper. From (h, x) and (s, x) diagrams, exergy losses for each component can be determined leading to an exergetic efficiency of 75% which provides the quality index of the absorption cycle. (author).}
doi = {10.1002/er.4440140304}
journal = []
volume = {14:3}
journal type = {AC}
place = {United Kingdom}
year = {1990}
month = {Apr}
}