Abstract
Distributed power generation is a current trend. Our lab has demonstrated that microturbines can be of high efficiency, light weight, compact, and mobile. On the other hand, the absorption refrigeration system (ARS) can use exhaust heat as input. Using a waste heat driven generator to replace the conventional compressor, the ARS can be a great energy saver with low capital cost, low noise, and no electricity input to drive the compressor. In this study, we used a microturbine (SPT5 model made by JETCAT) as the main power source for our system. The microturbine has attained a thermal to electric efficiency of 10% with about 700-1000K exhaust gas temperature. Then we would build the simulation program of single and double effect ARS and analyze the Coefficients of Performance(COP) and temperatures in both ARS systems. With these data, we can perform a study of the configuration design and performance analysis of the system. Finally, the feasibility of this system would be analyzed. In conclusion, by using the concept of waste heat recovery, the overall efficiency of the system can be greatly improved. With this configuration, it can provide an electricity load of 14.4 kW, a cooling load of 80 kW, and the fuel usability of the system can be about 70%. Finally, the analysis simulation system for a GT-ARS system is completed. This system can provide future references in high efficiency and clean environment with heat recovery system.