China
Africa
Explore chapters and articles related to this topic
Localized Electric Generation Applications Overview
Published in Neil Petchers, Combined Heating, Cooling & Power Handbook: Technologies & Applications, 2020
It should be noted that on-site electric cogeneration plants need not be considered as a dominant physical feature. They can be housed within a facility or out of view from the public, with sound and air emissions effectively controlled. Figure 23-29 shows a health sciences center facility that contains a 68 MW combined-cycle cogeneration system. The cogeneration plant features a 40 MW LM6000 gas turbine generator-set. Heat recovery-generated steam is used to power a 28 MW steam turbine that serves the heating and process steam loads.
Thermodynamic analysis of combined cycle system based on supercritical CO2 cycle and gas turbine with reheat and recuperation
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2023
Zhibo Lian, Yinke Qi, Diangui Huang
The sCO2 cycle has been widely used in solar energy (Kouta et al. 2016; Wang and He 2017), nuclear energy (Luo and Huang 2020), high-temperature fuel cells (Chen et al. 2019), and waste heat utilization (Manente and Fortuna 2019; Yu et al. 2020), which still has high thermal efficiency at an exhaust temperature of 600°C. Cho et al. (2015) collected seven kinds of cycle layouts as the bottoming cycle of gas turbines and compared the performance of each cycle layout. The result shows that the recompression cycle and precompression cycle are not suitable for waste heat recovery, and the dual-heating dual-split cycle has better performance than the steam cycle. Kimzey (2012) selected Siemens H-class gas turbine and GE LM6000 gas turbine as the topping cycle objects and compared the performance of three sCO2 cycles and steam cycles in heat recovery. The results show that the sCO2 cycle has greater net work than the steam cycle when the LM6000 is used as the topping cycle, while the performance of the sCO2 cycle in the H-class gas turbine application is inferior to that of the steam cycle. Kim et al. (2016) studied nine sCO2 power cycles and assessed their thermodynamic performance combined with a 5 MW gas turbine. The results indicate that the net power output of the partial heating sCO2 power system is higher, and it is more suitable for thermal utilization than recompression layout. From the perspective of cycle thermal efficiency and net work, the recuperative process is more important than the intercooling process.