Results 231 to 240 of about 9,125,519 (306)

Investigation of the high efficiency pulse tube refrigerator with acoustic power recovery

Applied Thermal Engineering, 2019
The efficiency of conventional pulse tube refrigerator (PTR) is bounded due to the dissipation of acoustic power at the hot end. Thus, the acoustic power recovery is of great significance for improving the efficiency of the PTR, especially in the ...
Xi Chen, F. Ling, Yangping Zeng, Yinong Wu   +3 more
semanticscholar   +1 more source

Thermo-economic analyses on a new conceptual system of waste heat recovery integrated with an S-CO2 cycle for coal-fired power plants

Energy Conversion and Management, 2018
Junjie Yan, , Xuwei Zhang
exaly   +2 more sources

Power Recovery Strategy of Distribution Network with Distributed Power

2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES), 2021
With the increasing proportion of distributed generator (DG) in the distribution network, the method of applying DG to the fault recovery of the distribution network can not only maximize the use of DG, but also improve the stability of the system. This paper first established a mathematical model for power recovery with the goal of reducing the number
Xuri Sun, Yanzhen Li, Mei Cui
openaire   +1 more source

Fast Active Power Recovery for Grid-Forming Converter During Postfault Under Different R/X Ratios of Grid Impedance

IEEE transactions on industrial electronics (1982. Print)
Fast active power recovery is very important for grid forming (GFM) converters to support the grid after clearing faults. However, most existing research only focuses on the voltage sag process without much attention paid to the postfault process.
Chao Wu, Zhao Zou, Xiaoling Xiong, Yong Wang, F. Blaabjerg   +4 more
semanticscholar   +1 more source

Rapid recovery of power output in females

Acta Physiologica Scandinavica, 1998
The purpose of the present study was to examine whether the magnitude of the changes in the concentration of muscle metabolites influences the recovery of power output following short‐term maximal intensity cycle exercise performed at different average pedalling rates.
P W, Cherry, H K, Lakomy, L H, Boobis, M E, Nevill   +3 more
openaire   +2 more sources

Power-aware Recovery for Geographic Routing

2009 IEEE Wireless Communications and Networking Conference, 2009
Maintaining low power consumption is critical in wireless ad hoc and sensor networks. With packet transmissions and retransmissions consuming much of the energy resources in wireless networks, it becomes important to minimize the number of transmissions associated with the end-to-end delivery of packets.
Amit Dvir, Niklas Carlsson
openaire   +1 more source

Combined biomass gasification, SOFC, IC engine, and waste heat recovery system for power and heat generation: Energy, exergy, exergoeconomic, environmental (4E) evaluations

, 2020
A novel hybrid system using biomass as fuel for both power and heat generation, which consists of biomass gasification unit, solid oxide fuel cell, homogeneous charge compression ignition engine and waste heat recovery unit, is proposed in this work ...
Zhanghua Wu, P. Zhu, Jing Yao, Shengan Zhang, Jianwei Ren, Fusheng Yang, Zao-xiao Zhang   +6 more
semanticscholar   +1 more source

A review of industrial waste heat recovery system for power generation with Organic Rankine Cycle: Recent challenges and future outlook

, 2020
Waste heat recovery is an effective way to reuse waste energy in order to produce useful energy products. This technique aids in the reduction of CO2 emissions and to create sustainable and efficient systems.
R. Loni, G. Najafi, Evangelos Bellos, Fatemeh Rajaee, Z. Said, M. Mazlan   +5 more
semanticscholar   +1 more source

Energy recovery for low-power CMOS

Proceedings Sixteenth Conference on Advanced Research in VLSI, 2002
Energy recovery, as a means to trade off power dissipation for performance in CMOS logic circuits, is analyzed and investigated. A mathematical model is presented to estimate the efficiency for two energy-recovery approaches under varying conditions of voltage swing, transition time, and MOS device parameters. This model can be directly compared to the
William C. Athas, Nestoras Tzartzanis
openaire   +1 more source

A power recovery strategy dedicated to implantable applications

10th IEEE International Conference on Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003, 2004
We present in this paper a power recovery strategy dedicated to the biotelemetry application of cortical/nerve stimulation. The proposed strategy allows providing dual regulated output voltages 3.3V/1.8V to the electrodes driver and other implantable circuitry, respectively. Its low dropout voltage makes a high power efficiency attainable.
Yamu Hu, Mohamad Sawan, Mourad N. El-Gamal   +2 more
openaire   +1 more source