Results 41 to 50 of about 18,543 (271)

Simultaneous efficiency improvement of pump and turbine modes for a counter-rotating type pump-turbine

Advances in Mechanical Engineering, 2016
This article presents a multi-objective optimization to improve the hydrodynamic performance of a counter-rotating type pump-turbine operated in pump and turbine modes.
Jin-Woo Kim, Jun-Won Suh, Young-Seok Choi, Kyoung-Yong Lee, Joon-Hyung Kim, Toshiaki Kanemoto, Jin-Hyuk Kim   +6 more
doaj   +1 more source

Flow-Induced Vibration of Non-Rotating Structures of a High-Head Pump-Turbine during Start-Up in Turbine Mode

Energies, 2022
Pumped storage-power plants play an extremely important role in the modern smart grid due to their irreplaceable advantages in load peak-valley regulation, frequency modulation, and phase modulation.
Mengqi Yang, Weiqiang Zhao, Huili Bi, Haixia Yang, Qilian He, Xingxing Huang, Zhengwei Wang   +6 more
doaj   +1 more source

PEMBANGKIT LISTRIK METODE PUMP AS TURBINES (PATs)

J-ENSITEC, 2017
Pump As Turbines (PATs) merupakan inovasi tepat guna yang dapat mengubah pompa sentrifugal menjadi turbin yang menghasilkan energi listrik. Prinsip kerja dasar dari Pump As Turbines (PATs) adalah kebalikan dari kerja pompa yang biasanya pompa digunakan untuk mengalirkan air dari dataran rendah ke dataran tinggi sedangkan di Pump As Turbines (PATs) air ...
Rachmat, Asep, Hamdani, Ali
openaire   +3 more sources

Design and Performance Analysis of a Thermal Energy Storage System With Steam Extraction and Electric Heating in a Coal‐Fired Power Plant

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To alleviate the impact of the instability of renewable energy power generation on the power grid, coal‐fired power plants (CFPPs) have to undertake peak shaving tasks, which puts forward high requirements for the flexibility of CFPPs. To enhance the flexibility of CFPPs to consume more renewable energy, this paper innovatively proposes a ...
Yuguo Ni, Keliang Liu, Miao Yu, Hao Zhou
wiley   +1 more source

Pumps as Turbines (PATs) by Analysis with CFD Models

International Journal on Advanced Science, Engineering and Information Technology, 2022
[EN] Pumps as turbines (PATs) are the typical solution for electrification using micro hydropower plants (MHP) in the rural sector. Other engineering applications where lately the use of PATs have increased are irrigation, water supply, and energy recovery systems due to their availability, short delivery time, long service life, economic feasibility ...
Plua, Frank, Hidalgo, Victor, Cando, Edgar, Pérez Sánchez, Modesto, López Jiménez, Petra Amparo   +4 more
openaire   +2 more sources

Experimental Investigation of Microbubble Evolution in the Liquivac Multiphase Flow Pump

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This paper aims to experimentally investigate the mechanisms of microbubble characteristics evolution within an axial pump. The findings will aid in assessing the pump performance by identifying the range of bubble sizes and comparing them with the threshold size (< 300 μm). This study also provides evidence supporting the use of such pumps as
Hamad FA, Safa Najim, Keville Tony, Atma Prakash, Sajid Abdullah   +4 more
wiley   +1 more source

Flow characteristics analysis of an extra–high–head pump–turbine with splitter–blades under high pressure-pulsation condition [PDF]

E3S Web of Conferences
The new energy system aims to provide reliable, affordable and sustainable energy, and ultimately achieve carbon neutrality. But the unstable renewable energy sources including wind and solar increase the risk to the grid and the power system. The pumped–
Huang Xingxing, Huang Xiaoying, Bi Huili, Huang Yanqing, Xu Buchao, Wang Zhengwei   +5 more
doaj   +1 more source

Design and Optimization of a Novel Kalina‐Organic Rankine Cycle System Based on LNG Cold Energy Utilization

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a novel integrated system (SDKC‐DORC) that combines a split‐flow dual‐pressure Kalina cycle with a secondary organic Rankine cycle for the synergistic utilization of solar energy and liquefied natural gas (LNG) cold energy.
Ke Xiao, Kun Wang, Wenquan Jiang, Fan Yang, Changshun Wang, Chengjie Su, Junjie Liu   +6 more
wiley   +1 more source

From Bench to Bulk: Investigating Kinetics, Recyclability, and Scale‐Up of ZIF‐67

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Zeolitic imidazolate framework‐67 (ZIF‐67), a subclass of metal–organic frameworks (MOFs), has garnered considerable attention due to its high surface area, open crystal structure, tunable porosity, and potential applications in gas separation, catalysis, and carbon capture.
Aaush Bhardwaj Singh, Manishkumar D. Yadav   +1 more
wiley   +1 more source

Energy Production by Means of Pumps As Turbines in Water Distribution Networks

Energies, 2017
This paper deals with the estimation of the energy production by means of pumps used as turbines to exploit residual hydraulic energy, as in the case of available head and flow rate in water distribution networks.
Mauro Venturini, Stefano Alvisi, Silvio Simani, Lucrezia Manservigi   +3 more
doaj   +1 more source