Optimisation and selection of a steam turbine for a large scale industrial CHP (combined heat and power) system under Australia's carbon price

Energy ◽  
2013 ◽  
Vol 61 ◽  
pp. 291-307 ◽  
Author(s):  
Chanel Ann Gibson ◽  
Mehdi Aghaei Meybodi ◽  
Masud Behnia
Keyword(s):  
Power System ◽  
Steam Turbine ◽  
Large Scale ◽  
Carbon Price ◽  
Combined Heat And Power ◽  
Selection Of

The Study on Electric Power System Based on Swarm Intelligence

2012 ◽  
Vol 442 ◽  
pp. 424-429 ◽  
Author(s):  
Ze Sheng Xu ◽  
Zhi Feng Ma ◽  
Xin Wen Di ◽  
Tao Luo ◽  
Hong Yun Guo ◽  
...  
Keyword(s):  
Power System ◽  
Swarm Intelligence ◽  
Large Scale ◽  
Optimization Problems ◽  
System Optimization ◽  
Electric Power System ◽  
Central Research ◽  
Centralized Control ◽  
Mathematical Basis ◽  
Selection Of

In this paper, we introduce the swarm intelligence computation and its applications in power system. Because swarm intelligence does not need any precondition of centralized control and global model, it is very suitable to solve large scale power system nonlinear optimization problems which are hard to establish effective formalized models and difficult to be solved by traditional methods. In order to apply swarm intelligence better in power system, we propose two central research directions in the future: (1) The mathematical basis of swarm intelligence is unsubstantial and it lacks profound and pervasive theoretical analysis, so we must analysis its convergence and selection of parameters, especially the parameter selection of large scale power system optimization problems. (2) Because swarm intelligence is internally parallel, we should realize it based on the parallel computation theory. This work will also be helpful for the real-time need of power system.

The Impact of Australia’s Carbon Price on the Optimisation and Selection of Gas Turbine CHP System

2013 ◽  
Author(s):  
Chanel A. Gibson ◽  
Mehdi Aghaei Meybodi ◽  
Masud Behnia
Keyword(s):  
Gas Turbine ◽  
Carbon Price ◽  
Combined Heat And Power ◽  
Present Worth ◽  
Dual Connection ◽  
Chp System ◽  
The Impact ◽  
Optimum Working ◽  
Selection Of

This paper aims to indentify the impact of Australia’s carbon pricing mechanism on the optimization of a gas turbine combined heat and power (CHP) system using a thermo-economic approach. Three economic scenarios were considered: no carbon price (case one); carbon price and not liable (case two); and a carbon price and liable (case three). With the intention of demonstrating the methodology used and to identify the impact of the carbon price quantitatively, a case study was utilized. Pricing data sourced from an ongoing investigation at this institution was employed to facilitate the three economic scenarios in addition to the yearly price fluctuations. The system was permitted to operate at off-design conditions in order to determine the optimum working conditions for each month. The analysis drew on the economic indicators of net present worth and payback period. Two connection modes to the grid were considered: a single connection that allowed only for the purchasing of supplementary electricity from the grid and a dual connection which allowed both purchasing and selling of electricity.

scholarly journals Multicriterial analyses and selection of the best option for revitalization and development of the southern part of Croatian 400 kV network and connection to the power system of Bosnia and Herzegovina

2020 ◽  
Vol 69 (4) ◽  
pp. 20-24
Author(s):  
Goran Majstorović ◽  
Davor Bajs ◽  
Lucija Krstanović ◽  
Damjan Međimorec ◽  
Danko Blažević ◽  
...  
Keyword(s):  
Power System ◽  
Bosnia And Herzegovina ◽  
Electricity Market ◽  
Large Scale ◽  
Biological Diversity ◽  
Technological Development ◽  
Governance Structure ◽  
Sensitivity Analyses ◽  
Operational Experience ◽  
Selection Of

The southern wing of the Croatian transmission network was constructed for 220 kV in the early 1960’s, with additional 400 kV reinforcement at the end of 1970’s. Its route of more than 200 km is quite demanding due to extreme climate, environmental specifics and related costs. However, operational experience during more than 50 years has been quite positive. Nowadays, at the end of its lifetime it is again extremely important to analyze and select the best option for network revitalization and development to serve the network users for the next 50 years, but in very different conditions of technological development, more restrictive environmental requirements, electricity market conditions and large scale RES integration. Moreover, special attention should be given to the potential opportunity and need to use this revitalization also for new interconnection to the power system of Bosnia and Herzegovina (BiH). Five main options have been initially selected as topology candidates for problem resolving. Detailed methodology and criteria for the selection of optimal option (revitalization and development scenario and topology) were developed and approved by all involved stakeholders. For selected option, based on comprehensive analyses and approved methodology , for further detailed analyses ( system reliability, technical design, investment, economics /CBA/ and environmental analyses) have been prepared, including assessment of its impact on transmission tariffs of each country. Sensitivity analyses to the most uncertain variables (investment costs and CO2 prices) were also performed. The environmental and social assessment was very demanding due to the complex governance structure and three legal frameworks to be respected (two countries, along with two entities in BiH). The Project impact was evaluated with respect to: air quality, water quality, waste management, noise, biological diversity, electromagnetic field, social measures and protected areas. This paper presents above mentioned analyses, findings and recommendations, as the most comprehensive analytical approach to the transmission line development that’s ever been applied in this region.

Analysis on Biogas Engineering of Farm and Investment Result

2014 ◽  
Vol 955-959 ◽  
pp. 2635-2639
Author(s):  
Dong Yang ◽  
Shi Jun Wei ◽  
Hao Sen Sun
Keyword(s):  
Power System ◽  
Energy Saving ◽  
Large Scale ◽  
Waste Heat ◽  
Biogas Production ◽  
Organic Fertilizer ◽  
Combined Heat And Power ◽  
Biogas Plant ◽  
Meat Processing ◽  
Anaerobic Reactor

This paper analyzed a large-scale biogas plant in a meat-processing farm located in the Laiyang, the CSTR process was applied for production. Along with biogas production, this project also adopted a combined heat and power system. The system burns biogas for generating, but they also convert the waste heat into anaerobic reactor to promote the production of biogas.These comprehensive systems can provide heat, electricity and organic fertilizer, which can result in economic, social and energy saving benefits. Due to these benefits, the system is commonly used in China when dealed with large scale livestock biogas projects.

Platelet Anti-Aggregating Activity and Tolerance of Clopidogrel in Atherosclerotic Patients

1996 ◽  
Vol 76 (06) ◽  
pp. 0939-0943 ◽  
Author(s):  
B Boneu ◽  
G Destelle ◽  
Keyword(s):  
Platelet Aggregation ◽  
Large Scale ◽  
Bleeding Time ◽  
Antithrombotic Activity ◽  
Ambulatory Patients ◽  
Patients At Risk ◽  
Set Up ◽  
Ischemic Events ◽  
Large Scale Clinical Trial ◽  
Selection Of

SummaryThe anti-aggregating activity of five rising doses of clopidogrel has been compared to that of ticlopidine in atherosclerotic patients. The aim of this study was to determine the dose of clopidogrel which should be tested in a large scale clinical trial of secondary prevention of ischemic events in patients suffering from vascular manifestations of atherosclerosis [CAPRIE (Clopidogrel vs Aspirin in Patients at Risk of Ischemic Events) trial]. A multicenter study involving 9 haematological laboratories and 29 clinical centers was set up. One hundred and fifty ambulatory patients were randomized into one of the seven following groups: clopidogrel at doses of 10, 25, 50,75 or 100 mg OD, ticlopidine 250 mg BID or placebo. ADP and collagen-induced platelet aggregation tests were performed before starting treatment and after 7 and 28 days. Bleeding time was performed on days 0 and 28. Patients were seen on days 0, 7 and 28 to check the clinical and biological tolerability of the treatment. Clopidogrel exerted a dose-related inhibition of ADP-induced platelet aggregation and bleeding time prolongation. In the presence of ADP (5 \lM) this inhibition ranged between 29% and 44% in comparison to pretreatment values. The bleeding times were prolonged by 1.5 to 1.7 times. These effects were non significantly different from those produced by ticlopidine. The clinical tolerability was good or fair in 97.5% of the patients. No haematological adverse events were recorded. These results allowed the selection of 75 mg once a day to evaluate and compare the antithrombotic activity of clopidogrel to that of aspirin in the CAPRIE trial.

Virtual Synchronous Generator Control of Power System including Large-scale Wind Farm by Cooperative Operation between Battery and LFC Hydro Power Plant

2020 ◽  
Vol 140 (6) ◽  
pp. 531-538
Author(s):  
Kotaro Nagaushi ◽  
Atsushi Umemura ◽  
Rion Takahashi ◽  
Junji Tamura ◽  
Atsushi Sakahara ◽  
...  
Keyword(s):  
Power Plant ◽  
Power System ◽  
Large Scale ◽  
Wind Farm ◽  
Synchronous Generator ◽  
Hydro Power ◽  
Virtual Synchronous Generator
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