Heat-power-gas capacity of natural gas-fired combined cycle cogeneration power plant

Natural gas-fired cogeneration power plant is the key joint which connects the natural gas pipeline network, power grid and district heat supply network. Thus its supply and consumption capacity of heat-power-gas is pivotal to the coordination of urban energy system. Based on material and energy balance principle, the process model of a natural gas-fired combined cycle cogeneration power plant is established. By conducting off-design simulations, a set of boundary capacity data is obtained which enclose the capacity area of heat and power supply under given natural gas consumption. The heat-power-gas capacity area can provide essential information on the natural gas-fired cogeneration power plants for urban energy coordination system.