COGENERATION OF ELECTRICITY AND LIQUID FUELS USING AN HTGR AS THE HEAT SOURCE

摘要

A high temperature gas-cooled reactor (HTGR) used for cogeneration of electricity and liquid transportation fuels was modeled The model consisted of two HTGRs, each transferring heat through 1. a steam generator (SG) to a supercritical Rankine Cycle (SCRC) producing electricity, and 2. an intermediate heat exchanger (IHX) to a biomass gasifier and Fischer- Tropsch (FT) process producing gasoline, jet fuel, diesel, liquefied petroleum gas (LPG) and/or naphtha The individual systems and components in the cogeneratwn model are mature technologies and commercially available, because minimizing the need for additional innovation increases the overall probability of success for a new and unique hybrid system Technical evaluations of cogeneratwn on the island of Oahu in the State of Hawaii, using eucalyptus and sugarcane as the biomass feedstock, indicated that high thermal efficiency was achievable and that the concept is technically viable Economic evaluations of cogeneratwn, based on construction and finance costs and current electricity and liquid fuel prices, indicated that the cogeneratwn plant is economically viable Additional analyses quantified the potential number of jobs created in the state and the reduction in carbon emissions. Further analyses indicated that cogeneratwn would significantly enhance Hawaii's energy security