Experimental study of the use of additives in the performance of a single-stage heat transformer operating with water-lithium bromide

摘要

In the present paper, the additives 1-octanol and 2-ethyl-l-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 HbO/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 deg C by adding 400 ppm of 2-ethyl-l-hexanol to the lithium bromide mixture. Also it was shown that the coefficient of performance increases up to 40 percent with the same additive.