scholarly journals Energy, Environmental, and Economic Analyses of a District Heating (DH) Network from Both Thermal Plant and End-Users’ Prospective: An Italian Case Study

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7783
Author(s):  
Erica Corradi ◽  
Mosè Rossi ◽  
Alice Mugnini ◽  
Anam Nadeem ◽  
Gabriele Comodi ◽  
...  
Keyword(s):  
Power Plant ◽  
Economic Analysis ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
District Heating ◽  
Primary Energy ◽  
End Users ◽  
Thermal Plant ◽  
Italian Case ◽  
Economic Analyses

District heating (DH) is an alternative technology to Individual Heating (IH) for satisfying end-user’s needs. This paper assesses the competitiveness of a DH network in the center of Italy from energy, environmental, and economic points of view considering both thermal power plant and end-users‘ sides. On the thermal power plant side, the energy analysis considers the Primary Energy Saving (PES) and the specific energy (Esp) of the fuel actually exploited in the thermal power plant compared to its Low Heating Value (LHV), while the environmental analysis considers the avoided CO2 and the economic analysis considers the Energy Efficiency Certificates (EECs). Results showed that the current thermal power plant configuration with two boilers and a Combined Heat and Power (CHP) unit reaches a yearly PES of 21.3% as well as 1099 tCO2 avoided. From the economic analysis of the thermal power plant side, 829 EECs with an economic return of 207,222€ are obtained, while from the end-users’ side the DH network is cheaper than IH in 84.7% of the cases. Further technologies are also studied to enhance the CHP unit flexibility.

Utilization of Waste Materials from Industrial Processes of a Brazilian Sugarcane Mill for Energy Production

2014 ◽  
Vol 1082 ◽  
pp. 511-516
Author(s):  
Ricardo Alan Verdú Ramos ◽  
Lucas Mendes Scarpin ◽  
Cassio Roberto Macedo Maia ◽  
Newton Luiz Dias Filho ◽  
Thiago Antonini Alves ◽  
...  
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Energy Production ◽  
Thermal Power ◽  
Combined Cycle ◽  
Waste Materials ◽  
Industrial Processes ◽  
Steam Boiler ◽  
First Case ◽  
Economic Analyses

This work presents the thermodynamic, thermoeconomic, and economic analyses of utilization of waste materials from industrial processes of a modern Brazilian sugarcane mill (bagasse, straw and vinasse) for energy production. The first case considers a conventional steam thermal power plant constituted, among other equipment, by a steam boiler of high-pressure and high-temperature and by an extraction-condensation steam turbine, being all mechanical driving electrified, and using just bagasse as fuel. The second case considers a modified steam thermal power plant in which is incorporated systems to be possible the utilization of straw and vinasse as complementary fuel to bagasse by means of a combined cycle, with the addition of a gas turbine and a heat recovery steam generator, among other equipment.

A Novel Method for Analyzing the Thermodynamic System of Thermal Power Plant with Double Reheat Cycles

2011 ◽  
Vol 354-355 ◽  
pp. 401-405
Author(s):  
Peng Ran
Keyword(s):  
Power Plant ◽  
Economic Analysis ◽  
Thermal Power Plant ◽  
Matrix Method ◽  
Thermal Power ◽  
Thermodynamic System ◽  
Novel Method

This paper introduces a novel matrix method for calculating the efficiency of a thermal power plant unit with double reheat cycles. The structure of this matrix method has a mapping relationship with the thermodynamic system of the thermal power plant unit with double reheat cycles, and it can simplify the thermal economic analysis of the double reheat cycles units. An example is given to illustrate the validity of the method.

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