| Abstract |
Use of the total flow (well-head two-phase mixture) in heat exchanger plants for geothermal direct heat applications in New Zealand is not a new idea - this approach has been adopted successfully in Rotorua on low enthalpy mixtures for many decades. However now that field test data on two-phase heat transfer and fouling is available, it is possible to consider the implications in using the total flow in heat exchanger plants from higher pressure production wells. A case study for process steam generation is presented to discuss the possible thermal efficiency and environmental impact advantages of this approach. |