subject: Geothermal As A Future Sustainable Energy (2) [print this page] The binary cycle or two-cycle power plants are more popular and technically advance in geothermal power plant technology. The hot water from production wells flows to heat exchanger while then working fluids, called binary liquid, working in the other side of heat exchanger. The researcher said that isobutane is usually a choice of working fluids. These substances should never mix in heat exchanger, but the heat energy moves from hot water to working fluids.
