Experimental Performance Evaluation of Absorption Refrigeration System Driven by Waste Heat of Engine Exhaust

Abstract

This work presents an experimental study of an absorption refrigeration system (aqua-ammonia) using Internal combustion engine exhaust as a power source. The effect of the absorption refrigeration system on engine performance and exhaust emissions will be evaluated using the available exhaust gas energy. a generator model (TG3700) (with the exhaust pipe) has been tested with an absorption refrigeration system with the exhaust pipe. The generator was tested in four different cases according to the load (no-load, 25% load, 50% load, and load75%). The refrigerator reached different temperatures, depending on the load and the time the experiment was carried out. The availability of exhaust gas indicates that the cooling performance of a customized system can be greatly improved to save electricity usage and save cost as well. The results showed that the best case obtained was 75% load, because the temperature of the freezer decreased significantly, unlike in the rest of the cases, and it reached -13.5°C after it was 29.9°C, and this experiment was done at 75% load For 3 hours of operation.