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Experimental study of the use of additives in the performance of a single‐stage heat transformer operating with water–lithium bromide
Author(s) -
Rivera W.,
Cerezo J.
Publication year - 2005
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.1045
Subject(s) - lithium bromide , transformer , bromide , chemistry , transformer oil , coefficient of performance , materials science , thermodynamics , analytical chemistry (journal) , nuclear engineering , electrical engineering , engineering , chromatography , organic chemistry , heat pump , physics , heat exchanger , voltage
Abstract In the present paper, the additives 1‐octanol and 2‐ethyl‐1‐hexanol, have been used for the first time in a 2 kW single‐stage heat transformer installed in the Energy Research Centre of the National University of Mexico utilizing H 2 O/LiBr, operating at absorber temperatures in a range between 70 and 110°C. The results showed that at the same conditions, absorber temperatures increased about 5°C by adding 400 ppm of 2‐ethyl‐1‐hexanol to the lithium bromide mixture. Also it was shown that the coefficient of performance increases up to 40% with the same additive. Copyright © 2005 John Wiley & Sons, Ltd.