scholarly journals Nuclear power plant waste heat utilization

1977 ◽  
Author(s):  
J.H. Ryther ◽  
R.E. Huke ◽  
J.C. Archer ◽  
D.R. Price ◽  
W.J. Jewell ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Waste Heat ◽  
Heat Utilization ◽  
Plant Waste ◽  
Waste Heat Utilization

scholarly journals Beneficial Reuse of Industrial CO2 Emissions Using a Microalgae Photobioreactor: Waste Heat Utilization Assessment

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2634 ◽  
Author(s):  
Daniel T. Mohler ◽  
Michael H. Wilson ◽  
Zhen Fan ◽  
John G. Groppo ◽  
Mark Crocker
Keyword(s):  
Heat Transfer ◽  
Power Plant ◽  
Biomass Production ◽  
Waste Heat ◽  
Point Sources ◽  
Production Costs ◽  
Transfer Coefficients ◽  
Wind Speeds ◽  
Heat Utilization ◽  
Waste Heat Utilization

Microalgae are a potential means of recycling CO2 from industrial point sources. With this in mind, a novel photobioreactor (PBR) was designed and deployed at a coal-fired power plant. To ascertain the feasibility of using waste heat from the power plant to heat algae cultures during cold periods, two heat transfer models were constructed to quantify PBR cooling times. The first, which was based on tabulated data, material properties and the physical orientation of the PBR tubes, yielded a range of heat transfer coefficients of 19–64 W m−2 K−1 for the PBR at wind speeds of 1–10 m s−1. The second model was based on data collected from the PBR and gave an overall heat transfer coefficient of 24.8 W m−2 K−1. Energy penalties associated with waste heat utilization were found to incur an 18%–103% increase in energy consumption, resulting in a 22%–70% reduction in CO2 capture for the scenarios considered. A techno-economic analysis showed that the cost of heat integration equipment increased capital expenditures (CAPEX) by a factor of nine and increased biomass production costs by a factor of three. Although the scenario is thermodynamically feasible, the increase in CAPEX incurs an increase in biomass production cost that is economically untenable.

scholarly journals Influence of heat recuperation in ORC power plant on efficiency of waste heat utilization

2010 ◽  
Vol 31 (4) ◽  
pp. 111-123 ◽  
Author(s):  
Aleksandra Borsukiewicz-Gozdur
Keyword(s):  
Power Plant ◽  
Output Power ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Internal Heat ◽  
External Heat ◽  
Working Fluid ◽  
Heat Utilization ◽  
Heat Recuperation ◽  
Waste Heat Utilization

Influence of heat recuperation in ORC power plant on efficiency of waste heat utilization The present work is devoted to the problem of utilization of the waste heat contained in the exhaust gases having the temperature of 350 °C. Conversion of the waste heat into electricity using a power plant working with organic fluid cycles is considered. Three Organic Rankine Cycle (ORC) power plant solutions are analysed and compared: a solution with the basic, single thermodynamic conversion cycle, one with internal heat recuperation and one with external heat recuperation. It results from the analysis that it is the proper choice of the working fluid evaporation temperature that fundamentally affects the maximum of the ORC plant output power. Application of the internal heat recuperation in the plant basic cycle results in the output power increase of approx. 5%. Addition of the external heat recuperation to the plant basic cycle, in the form of a secondary supercritical ORC power cycle can rise the output power by approx. 2%.

Efficiency and power upgrade at the aged lignite-fired power plant by flue gas waste heat utilization: High pressure versus low pressure economizer installation

Energy ◽  
2019 ◽  
Vol 187 ◽  
pp. 115980 ◽  
Author(s):  
Vladimir D. Stevanovic ◽  
Milan M. Petrovic ◽  
Tadeusz Wala ◽  
Sanja Milivojevic ◽  
Milica Ilic ◽  
...  
Keyword(s):  
High Pressure ◽  
Power Plant ◽  
Flue Gas ◽  
Waste Heat ◽  
Low Pressure ◽  
Heat Utilization ◽  
Waste Heat Utilization
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