You are hired to design a geothermal power plant for a location in which the available heat source is at a relatively low temperature; it is only able to heat a working fluid to a maximum of 60 oC. The local river you plan to use for heat rejection is able to remove heat from a working fluid that has a temperature as low as 15 oC. The system components you can afford with your budget have a maximum pressure rating of 1600 kPa. You decide to base the power plant design on a Rankine cycle, with system temperatures and pressures chosen to maximize cycle efficiency