Abstract
This proposed combined cycle starts with our existing 9 kW microturbine to be combined with a proposed micro ORC ycle. Basically, we will take the exhaust heat of 500~600°C from the microturbine to be input to the micro ORC cycle, so that we can take advantage of the waste heat from the turbine to the ORC cycle to generate additional power. The expected thermal efficiency can be increased from the current 15% to about 25%. During the proposed process, we will start with the microturbine test stand so we can measure the exhaust temperature, flow rates, and pressure, under different operating conditions. With this in mind we can establish the baseline data to be used for choosing the compatible ORC system. Then we will start building the desired micro ORC model to complete our combined cycle design including ORC working fluid and vaporize temperature selection. After conducting the heat exchanger simulate testing with microturbine in place, we can establish a complete ORC/GT combined cycle design system and be able to demonstrate the expected efficiency target.