A combined cycle system, comprising: a internal combustion engine comprising an engine fluid and at least one of a compressor section configured to compress a gas, a lubricant path configured to circulate a lubricant, or a coolant path configured to circulate a coolant, wherein the engine fluid comprises at least one of the gas, the lubricant, or the coolant, and wherein the engine fluid is a source of heat derived from one or more operations of the internal combustion engine; a heat exchanger coupled to the internal combustion engine, wherein the heat exchanger is configured to receive the engine fluid from the internal combustion engine along an engine fluid path and exchange heat between the engine fluid and a working fluid along a working fluid path to produce a heated working fluid and a cooled engine fluid, a steam cycle system comprising a boiler, a deaerator and a steam turbine, wherein the combined cycle system is configured such that a first portion of the heated working fluid produced by the heat exchanger is routed to the deaerator prior to steam generation in said steam cycle system and a second portion of the heated working fluid is returned to the working fluid path, and the steam cycle system is configured to receive the first portion of the heated working fluid from the heat exchanger as a make-up water supply of working fluid to replace working fluid lost within a process of the steam cycle system; one or more flow control devices; one or more sensors coupled to the internal combustion engine, the heat exchanger, one or more fluid flow paths, or the steam cycle system, wherein the one or more flow control devices are coupled to the internal combustion engine, the heat exchanger, one or more fluid flow paths, or the steam cycle system, a controller configured to regulate by utilizing one or more flow control devices and based on sensor feedback, received from the one or more sensors, a first flow of the first portion of the heated working fluid, such that the first flow replaces at least 80 percent of turbine extraction steam otherwise generated by the steam cycle system, extracted from the steam turbine, and used in the deaerator to facilitate deaeration in the deaerator, wherein the controller is further configured to regulate by utilizing one or more flow control devices and based on sensor feedback, received from the one or more sensors, a second flow of the second portion of the heated working fluid to return this second portion of the heated working fluid to the working fluid path; and wherein the deaerated heated working fluid from the deaerator is routed to the boiler for steam generation in said steam cycle system. a internal combustion engine comprising an engine fluid and at least one of a compressor section configured to compress a gas, a lubricant path configured to circulate a lubricant, or a coolant path configured to circulate a coolant, wherein the engine fluid comprises at least one of the gas, the lubricant, or the coolant, and wherein the engine fluid is a source of heat derived from one or more operations of the internal combustion engine; a heat exchanger coupled to the internal combustion engine, wherein the heat exchanger is configured to receive the engine fluid from the internal combustion engine along an engine fluid path and exchange heat between the engine fluid and a working fluid along a working fluid path to produce a heated working fluid and a cooled engine fluid, a steam cycle system comprising a boiler, a deaerator and a steam turbine, wherein the combined cycle system is configured such that a first portion of the heated working fluid produced by the heat exchanger is routed to the deaerator prior to steam generation in said steam cycle system and a second portion of the heated working fluid is returned to the working fluid path, and the steam cycle system is configured to receive the first portion of the heated working fluid from the heat exchanger as a make-up water supply of working fluid to replace working fluid lost within a process of the steam cycle system; one or more flow control devices; one or more sensors coupled to the internal combustion engine, the heat exchanger, one or more fluid flow paths, or the steam cycle system, wherein the one or more flow control devices are coupled to the internal combustion engine, the heat exchanger, one or more fluid flow paths, or the steam cycle system, a controller configured to regulate by utilizing one or more flow control devices and based on sensor feedback, received from the one or more sensors, a first flow of the first portion of the heated working fluid, such that the first flow replaces at least 80 percent of turbine extraction steam otherwise generated by the steam cycle system, extracted from the steam turbine, and used in the deaerator to facilitate deaeration in the deaerator, wherein the controller is further configured to regulate by utilizing one or more flow control devices and based on sensor feedback, received from the one or more sensors, a second flow of the second portion of the heated working fluid to return this second portion of the heated working fluid to the working fluid path; and wherein the deaerated heated working fluid from the deaerator is routed to the boiler for steam generation in said steam cycle system.