Modelling of the whole process of a university campus CHP power plant and dynamic performance study

2016 ◽  
Vol 13 (1) ◽  
pp. 53-63 ◽  
Author(s):  
Yue Wang ◽  
Akmaral Bermukhambetova ◽  
Ji-Hong Wang ◽  
Mark Donner ◽  
Jun-Fu Lv ◽  
...  
Keyword(s):  
Power Plant ◽  
Dynamic Performance ◽  
University Campus ◽  
Performance Study ◽  
Whole Process

scholarly journals Off-Design Dynamic Performance Analysis of a Solar Aided Coal-Fired Power Plant

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2950
Author(s):  
Vinod Kumar ◽  
Liqiang Duan
Keyword(s):  
Power Plant ◽  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Thermal Efficiency ◽  
Dynamic Performance ◽  
Feed Water ◽  
Saving Rate ◽  
Coal Consumption ◽  
Dynamic Performance Analysis

Coal consumption and CO2 emissions are the major concerns of the 21st century. Solar aided (coal-fired) power generation (SAPG) is paid more and more attention globally, due to the lesser coal rate and initial cost than the original coal-fired power plant and CSP technology respectively. In this paper, the off-design dynamic performance simulation model of a solar aided coal-fired power plant is established. A 330 MW subcritical coal-fired power plant is taken as a case study. On a typical day, three various collector area solar fields are integrated into the coal-fired power plant. By introducing the solar heat, the variations of system performances are analyzed at design load, 75% load, and 50% load. Analyzed parameters with the change of DNI include the thermal oil mass flow rate, the mass flow rate of feed water heated by the solar energy, steam extraction mass flow rate, coal consumption, and the plant thermal efficiency. The research results show that, as DNI increases over a day, the coal saving rate will also increase, the maximum coal saving rate reaches up to 5%, and plant thermal efficiency reaches 40%. It is analyzed that the SAPG system gives the best performance at a lower load and a large aperture area.

scholarly journals Quality Control of Transmission Line Engi-neering in Wind Power Plant

2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Peng Wang
Keyword(s):  
Quality Control ◽  
Power Plant ◽  
Transmission Line ◽  
Wind Power ◽  
Quality Assurance System ◽  
Wind Power Plant ◽  
Whole Process ◽  
Power Stations ◽  
Assurance System

The most critical component of a wind power plant is the transmission line, which carries two key tasks – the transpor-tation and distribution of electricity. The transmission line is also responsible for the various substations, wind power stations to contact to its safe and smooth operation. As the competition order of wind power projects is more chaotic, the quality of the project cannot be supervised and controlled by the whole process. The quality control of the project is not up to standard, and the overall quality of the transmission line will be affected. This paper focuses on two aspects of the elaboration, one is the wind turbine transmission line project common quality problems; the other is how to build wind power plant transmission line quality assurance system.

Retrofitting Offshore Drilling Rigs with Islanded DC Grids and Energy Storage

2021 ◽  
Author(s):  
Stig Settemsdal ◽  
Saverio Ventrelli
Keyword(s):  
Energy Storage ◽  
Power Plant ◽  
Power Plants ◽  
Oil And Gas ◽  
Dynamic Performance ◽  
Wind Farms ◽  
Power Grids ◽  
Offshore Drilling ◽  
Drilling Rig ◽  
Drilling Rigs

Abstract The paper presents a novel approach for modernizing/retrofitting offshore drilling rig power plants with islanded direct current (DC) power grids and energy storage. The concept has been successfully applied on several offshore rigs which are in operation today and is applicable to jack-ups, semi-submersibles, drill ships, as well as other types of marine support vessels for oil and gas platforms and wind farms. The approach aims to enhance the feasibility of leveraging energy storage solutions on offshore drilling rigs and marine vessels by making use of the existing power plant footprint. Unique measures have also been incorporated into the electrical system architecture to ensure that the reliability and safety of the existing alternating current (AC)-based system are not compromised. This enables operators to capitalize on the numerous benefits of energy storage (e.g., reduced emissions, enhanced dynamic performance for drilling and dynamic positioning, etc.) without having to perform a "rip and replace" of the entire power plant and electrical infrastructure.

Supplier Selection Criterion for SSCM in Indian Thermal Power Plant

2019 ◽  
pp. 240-257
Author(s):  
Suchismita Satapathy
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Power Plants ◽  
Thermal Power ◽  
Selection Criterion ◽  
Raw Material ◽  
Thermal Power Plants ◽  
Whole Process ◽  
Main Motive

All companies are dependent on their raw material providers. The same applies in the case of thermal power plants. The major raw material for a thermal power plant is the coal. There are a lot of companies which in turn provide this coal to the thermal power plant. Some of these companies are international; some are local, whereas the others are localized. The thermal power plants look into all the aspects of the coal providing company, before settling down for a deal. Some people are specifically assigned to the task of managing the supply chain. The main motive is to optimize the whole process and achieve higher efficiency. There are a lot of things which a thermal power plant looks into before finalizing a deal, such as the price, quality of goods, etc. Thus, it is very important for the raw material providers to understand each and every aspect of the demands of the thermal power plant. A combination of three methods—Delphi, SWARA, and modified SWARA—has been applied to a list of factors, which has later been ranked according to the weight and other relevant calculations.

Performance study and economic analysis of wind supercharged solar chimney power plant

2020 ◽  
Vol 156 ◽  
pp. 837-850
Author(s):  
Lu Zuo ◽  
Ning Qu ◽  
Zihan Liu ◽  
Ling Ding ◽  
Pengzhan Dai ◽  
...  
Keyword(s):  
Power Plant ◽  
Economic Analysis ◽  
Performance Study ◽  
Solar Chimney ◽  
Solar Chimney Power Plant

scholarly journals Operational Noise Assessment in an Open Cycle Power Plant: Study on the Existing Acoustical Performance.

2018 ◽  
Vol 7 (4.35) ◽  
pp. 11 ◽  
Author(s):  
Helmi A Halim ◽  
Gasim Hayder
Keyword(s):  
Power Plant ◽  
Noise Level ◽  
Performance Study ◽  
Noise Barriers ◽  
Noise Assessment ◽  
Noise Barrier ◽  
Open Cycle ◽  
Gas Turbine Power Plant ◽  
The Impact

This research is an acoustical performance study in an open cycle peaking gas turbine power plant located at the southern coast of Peninsula Malaysia. Referring to its location at the middle of residence and tourism area, throughout its operation years, several complains from public has been lodged about the excessive operational noise at the perimeter of the plant and statistically from the last decade, twenty-four (24) noise related public complains were recorded. This issue has initiated a study to determine the current operational noise level as well as the effectiveness of the existing noise barriers. Based on EIA approval, the boundary noise for the operation should be limited to 55 dB(A) at any time. The field measurement of noise level at two (2) different locations are assessed in-situ and continuously noise monitoring covering all the plant’s operational regime and at different plant operational pattern. These results are compared with the initial noise report during its early year of operation in 1999. Finally the hypotheses then compared with the referenced legislations. Results from all the methodologies show the current operational noise level of the plant are within the permissible limit, however the overall operational noise of the plant is increasing compared with 1999 report due to the increasing of surrounding activities as well as deteriorating of current engineering and natural noise barrier arrangement. Mitigation plans has been recommended to the management to minimize the impact of the excessive noise to surrounding residence and to the plant workers. On top of that, the theoretical and commercial implication of the research is also discussed.

Numerical Analysis and Optimization on Dynamic Performance of Large Turbo Generator Frame Foundation

2012 ◽  
Vol 166-169 ◽  
pp. 720-724
Author(s):  
Bai Sheng Wang ◽  
Dong Hui Cao ◽  
Ying Wu Yang ◽  
Chun Xiao Xu ◽  
Hua Jun Qian
Keyword(s):  
Numerical Analysis ◽  
Power Plant ◽  
Numerical Model ◽  
Working Conditions ◽  
Structural Design ◽  
Dynamic Performance ◽  
Linear Displacement ◽  
Ansys Software ◽  
Amplitude Control ◽  
Turbo Generator

A space numerical model about 1000MW turbo generator foundation of a power plant is established by ANSYS software, meanwhile analyzing the model’s vibration characteristics and response under the turbo generator working conditions. According to the existing norms, optimizing the foundation based on the linear displacement amplitude control, furthermore researching the corresponding dynamic on the optimized foundation for guidance to structural design.

Performance study of an amplification-based NGS test on clinical FFPE specimens in China’s first multi-center study.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e13112-e13112
Author(s):  
Feng Ye ◽  
Xiaoyan Zhou ◽  
Huaiyin Shi ◽  
Haijing Liu ◽  
Li Liang ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Illumina Miseq ◽  
Analytical Sensitivity ◽  
Performance Study ◽  
Ion Torrent Pgm ◽  
Whole Process ◽  
Ffpe Samples ◽  
Ffpe Tissues ◽  
Multi Center Study ◽  
Hotspot Mutation

e13112 Background: Next Generation Sequencing (NGS) assays provide a comprehensive view of clinically actionable variations in patients. The increasing application of NGS holds new promise towards accurate diagnosis, personalized treatment and precision medicine. Formalin-fixed Paraffin-embedded (FFPE) treatment remains to be the most popular format of tissue preservation. To further standardize the whole process of the application of NGS assays on FFPE tissues, the Chinese Medical Association Pathology Division organized a multi-center performance study of a NGS assay on more than 1,000 clinical FFPE specimens by inviting top pathology departments in the country. Methods: OncoAim Tumor Mutation and PharmGx Detection Kit (Singlera Genomics, Shanghai) was used for this study. Reference samples with known mutations and allele frequencies together with 1045 clinical FFPE specimens from 11 participating hospitals were tested. Among them, 615 Colorectal Cancer (CRC) and 430 Non-Small Cell Lung Cancer (NSCLC) FFPE samples were processed and sequenced on Illumina Miseq platform and Thermo ion torrent PGM platform, respectively. Results: The results on reference materials show 100% (Confidence interval = 100%) analytical sensitivity for mutations with MAF ≥ 10% when median coverage is ≥ 500X.Positive predictive value of > 99% was observed for mutations with MAF at 5% (data not shown). The median depth for CRC and NSCLC samples were 977Xand 828X, respectively. Among all CRC samples, 564 (91.7%) samples were found containing at least 1 clinical hotspot alteration. The top mutated genes were TP53, KRAS, APC, PIK3CA, SMAD4, BRAF, FBXW7, NRAS, PTEN, and ERBB2. For all the NSCLC samples, 304 (70.69%) were detected containing at least 1 clinical hotspot mutation. The top 10 mutated genes were EGFR, TP53, KRAS, PIK3CA PTEN, VHL, ERBB2, SMAD4, NFE2L2 and CTNNB1. Conclusions: In this study, we showed that the amplification-based NGS assay can achieve very high sensitivity and specificity for samples with median depth over 500X. The samples containing at least 1 clinical hotspot mutation were about 83% on average, suggesting NGS could be of great use for further characterization of the tissues.

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