Theoretical and experimental comparison of the performance of a single-stage heat transformer operating with water/lithium bromide and water/Carrol™

2002 ◽  
Vol 26 (8) ◽  
pp. 747-762 ◽  
Author(s):  
W. Rivera ◽  
R.J. Romero ◽  
M.J. Cardoso ◽  
J. Aguillón ◽  
R. Best
Keyword(s):  
Lithium Bromide ◽  
Single Stage ◽  
Experimental Comparison ◽  
Heat Transformer

scholarly journals Modeling of a Double Effect Heat Transformer Operating with Water/Lithium Bromide

Processes ◽  
2019 ◽  
Vol 7 (6) ◽  
pp. 371 ◽  
Author(s):  
Itzel N. Balderas-Sánchez ◽  
J. Camilo Jiménez-García ◽  
Wilfrido Rivera
Keyword(s):  
Lithium Bromide ◽  
Double Effect ◽  
Single Stage ◽  
Coefficient Of Performance ◽  
Generation Process ◽  
Absorption Process ◽  
Temperature Level ◽  
Stage System ◽  
Higher Temperature ◽  
Heat Transformer

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.

Studies on metal hydride based single-stage heat transformer

2013 ◽  
Vol 38 (17) ◽  
pp. 7178-7187 ◽  
Author(s):  
B. Satya Sekhar ◽  
S.P. Pailwan ◽  
P. Muthukumar
Keyword(s):  
Metal Hydride ◽  
Single Stage ◽  
Heat Transformer
Sign in / Sign up

Export Citation Format

Share Document