Highly Efficient Power Generation System and ICT Utilization

2018 ◽  
Vol 2018 (0) ◽  
pp. C252004
Author(s):  
Daisuke EMORI ◽  
Kazuhiko SAITO
2021 ◽  
Vol 6 (7) ◽  
pp. 133-139
Author(s):  
Md. Janibul Alam Soeb ◽  
Md. Shahid Iqbal ◽  
Md. Abu Naser Mojumder ◽  
Muhammad Rashed Al Mamun ◽  
A. S. M. Shahjalal Atik ◽  
...  

The demand for electrical power is rapidly increasing due to the rise of industries in developing countries. Power generation stations are having troubles to strike a balance between demand and generation. In this situation, it is urged that appropriate remedial action be taken. Rising power demand can be met by designing an efficient electric power generation system which will also help lowering the generation cost. It is shown that while high rated electric power generators are connected in parallel the value of neutral current is rising and the cooling temperature is also increased. Here, the goal of this experimental work is to present a new model for designing an efficient power production system for average-load (ranging up to 8000 Amp, 440 V) industries to minimize the demand on centralized interconnected grid. A scheme is proposed with four generators (2500 kVA, 2000 kVA, 2000 kVA and 1250 KVA) in parallel and enough cooling arrangement is provided with minimal cost. The coolant temperature is maintained 61 °C to 61.5 °C and at that time diesel temperature is not more than 38.5 °C. The amount of neutral-current is also optimized (up to 8.5 Amp.) which was more than 12 Amp. At the morning and afternoon, the neutral current is almost constant, but it is bit fluctuating between 7.5 Amp to 8.2 Amp at mid-day. The final outcome shows, the suggested system is efficiently stable with the change of load and generates optimal electricity.


1998 ◽  
Vol 118 (12) ◽  
pp. 1457-1462 ◽  
Author(s):  
Yoshihiro Okuno ◽  
Kunio Yoshikawa ◽  
Tetsuji Okamura ◽  
Hiroyuki Yamasaki ◽  
Shigeharu Kabashima ◽  
...  

Author(s):  
Masako Kawabata ◽  
Osamu Kurata ◽  
Norihiko Iki ◽  
Chihiro Fushimi ◽  
Atsushi Tsutsumi

Integrated Coal Gasification Fuel Cell Combined Cycle (IGFC) is expected to be the most efficient power generation system in coal fired power generation systems [1,2]. However, more energy efficient power generation system has to be developed to decrease CO2 emission in the middle and long term. Thus, the authors have proposed Advanced Integrated Coal Gasification Combined Cycle (A-IGCC) and Advanced IGFC (A-IGFC) systems, which utilize exhaust heat from solid oxide fuel cells (SOFC) and / or a gas turbine as a heat source of gasification (exergy recuperation) [3]. Previously A-IGCC [4] and A-IGFC [5] without CO2 capture option were analyzed with the process simulator HYSYS®.Plant (Aspen technology Inc.) to calculate thermal efficiencies of the proposed systems. Then IGCC and A-IGCC with CO2 capture option [6, 7] were analyzed with Amine process simulator AMSIM(DBR), a module in PRO/II® (Invensys Process Systems Japan, Inc) combined with HYSYS®.Plant model. It shows in the results of thermal efficiency with CO2 capture option that the penalty of A-IGCC case is larger than that of IGCC case, indicating somewhat scope for increase of exergy recuperation in A-IGCC case [6]. This study deals in the analyses of A-IGFC with CO2 separation unit.


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