Using Waste Heat to Power an Environmentally Sustainable Future Details City’s Dr Martin White explores a novel organic Rankine system for converting waste heat into electricity. In his most recent published research, appearing in Applied Thermal Engineering, City, University of London’s Dr Martin White explores a novel organic Rankine cycle system, based on a two-phase expansion through numerical simulations of the system. His paper, Cycle and turbine optimisation for an ORC operating with two-phase expansion, considers the use of modern fluids whose properties could help to mitigate concerns around turbine damage, whilst allowing the benefits of two-phase expansion to be realised.