scholarly journals THE EFFECTS OF MANIPULATING THE SYSTEM OPERATING PARAMETERS ON THE FUEL CONSUMPTION IN CO-GENERATION PLANT MODEL

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Mohd Halim Shah.I ◽  
Hasinah M. H. O Hasinah M. H. O
Keyword(s):  
High Pressure ◽  
Fuel Consumption ◽  
Power Production ◽  
Base Case ◽  
Steam Temperature ◽  
High Pressure Steam ◽  
Generation Plant ◽  
Pressure Steam ◽  
Steam Parameter ◽  
System Operating

Co-generation can be classified as a clean technology in producing electricity now days, however it still produces carbon dioxides and carbon monoxides which directly related with the fuel consumption. Therefore, it is important to study the effect of changing the High Pressure Steam parameter in order to fully utilize fuel supplied while maintaining the power production of the plant. This research is based on data gathered from the actual Co-Generation Plant in Malaysia. The data gathered was used to develop the base case using HYSIS simulation and all the analysis is done using the result from the simulations. From the analysis it was found by manipulating the temperature of the High Pressure Steam will give appositive linear relation with a significant effect on the fuel consumption and power generated. However, by manipulating the pressure of the High Pressure Steam will not give a significant effect on the fuel consumption and power generated. As a conclusion, based on this study it can be said that by manipulating the High Pressure Steam temperature it will give a significant effect on the fuel consumption and power generated.

Using CFD to Enhance the Preliminary Design of High-Pressure Steam Turbines

2013 ◽  
Author(s):  
Juri Bellucci ◽  
Federica Sazzini ◽  
Filippo Rubechini ◽  
Andrea Arnone ◽  
Lorenzo Arcangeli ◽  
...  
Keyword(s):  
High Pressure ◽  
Steam Turbine ◽  
Design Tool ◽  
Tip Clearance ◽  
Large Set ◽  
Preliminary Design ◽  
Steam Turbines ◽  
High Pressure Steam ◽  
Wide Range ◽  
Pressure Steam

This paper focuses on the use of the CFD for improving a steam turbine preliminary design tool. Three-dimensional RANS analyses were carried out in order to independently investigate the effects of profile, secondary flow and tip clearance losses, on the efficiency of two high-pressure steam turbine stages. The parametric study included geometrical features such as stagger angle, aspect ratio and radius ratio, and was conducted for a wide range of flow coefficients to cover the whole operating envelope. The results are reported in terms of stage performance curves, enthalpy loss coefficients and span-wise distribution of the blade-to-blade exit angles. A detailed discussion of these results is provided in order to highlight the different aerodynamic behavior of the two geometries. Once the analysis was concluded, the tuning of a preliminary steam turbine design tool was carried out, based on a correlative approach. Due to the lack of a large set of experimental data, the information obtained from the post-processing of the CFD computations were applied to update the current correlations, in order to improve the accuracy of the efficiency evaluation for both stages. Finally, the predictions of the tuned preliminary design tool were compared with the results of the CFD computations, in terms of stage efficiency, in a broad range of flow coefficients and in different real machine layouts.

Crosslinking Cotton Cellulose with a High Pressure Steam Process

2001 ◽  
Vol 71 (12) ◽  
pp. 1063-1067 ◽  
Author(s):  
Jui-Chin Chen ◽  
Wei-Hua Yao ◽  
Chien-Hsin Chen ◽  
Cheng-Chi Chen
Keyword(s):  
High Pressure ◽  
Cotton Cellulose ◽  
High Pressure Steam ◽  
Pressure Steam
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