Results 91 to 100 of about 18,916 (218)

Quantification of sleep in dairy cows in three different stages of lactation [PDF]

, 2011
The aim of this project was to quantify the total sleep time in modern dairy cows during 24-hour periods and to investigate whether the total amount of sleep as well as time spent in different sleep stages varies between the dry period, early- and peak ...
Nilsson, Emma
core   +1 more source

Investigation on Hydrodynamic Performance and Wall Temperature of Water-Cooled Wall in 1000 MW Boiler Under Low-Load Conditions

Energies
To enhance the peak-shaving capability of a boiler, a mathematical model of hydrodynamic and wall temperature characteristics for the water-cooled wall of a 1000 MW boiler was established.
Peian Chong, Xiaolei Zhu, Jianning Li, Xiao Li, Lei Deng   +4 more
doaj   +1 more source

Status of grid scale energy storage and strategies for accelerating cost effective deployment [PDF]

, 2009
Thesis (S.M. in Engineering and Management)--Massachusetts Institute of Technology, System Design and Management Program, 2009.Cataloged from PDF version of thesis.Includes bibliographical references (p.
Kluza, John Jerome
core  

Spacecraft utensil/hand cleansing fixture [PDF]

A system concept for an inflight utensil/hand cleansing fixture is described which includes the following features: (1) capability for efficient cleansing and rinsing of utensils or hands, and (2) provision for general waste fluid disposal.
Jonkoniec, T. G., Rosener, A. A., Schulz, J. R., Wilson, D. A.   +3 more
core   +1 more source

Decentralized energy supply and electricity market structures [PDF]

Small decentralized power generation units (DG) are politically promoted because of their potential to reduce GHG-emissions and the existing dependency on fossil fuels.
Christoph Weber, Philip Vogel
core  

High and low pressure cylinder bypass heat supply unit operation characteristics with coordinated intermediate pressure valve control

Case Studies in Thermal Engineering
Under China's electricity spot market, high-pressure and low-pressure cylinder (HP-LP) bypass heat supply retrofitting enhances the deep peak-shaving capacity and operational economy of combined heat and power (CHP) units.
Zijie Wang, Li Li, Yanfei You, Rujing Yan, Yujiong Gu   +4 more
doaj   +1 more source

Coordinated peak-regulating optimization of source-load-storage system considering the uncertainty, pricing and compensation

电力工程技术
In order to solve the problems of system peaking and consumption caused by the integration of large-scale new energy sources into the grid, this paper analyzes the source-load-storage peaking capacity and its complementarities, so as to tap the system's ...
ZHANG Jinliang, HU Zeping
doaj   +1 more source

Deep reinforcement learning-driven bidding strategy for wind-storage systems in energy and frequency regulation markets

电力工程技术
In the power market environment, participation of wind-storage system in both the energy market and the frequency regulation market is essential to enhance economic efficiency and support grid frequency regulation and peak shaving.
Zhongping LI, Yue XIANG
doaj   +1 more source

Experimental investigation of grid storage modes effect on aging of LiFePO4 battery modules

Frontiers in Energy Research
IntroductionTo investigate the degradation behavior of energy storage batteries during grid services, we conducted a cyclic aging test on LiFePO4 battery modules.MethodsIncorporating variables such as grid duty, temperature and depth of discharge, we ...
Jianhong Xu, Haozhan Li, Sicong Hua, Hao Wang   +3 more
doaj   +1 more source

Research on the Operation Flexibility of a Combined Heat and Power Generation Unit with Low-Temperature Return Water

Energies
In northern China, photovoltaic power generation peaks around midday, resulting in a concentrated demand for flexible and deep peak shaving over a period of approximately four hours.
Yaohua Zhao, Lei Lei, Shaohua Li, Junfu Lyu   +3 more
doaj   +1 more source