Power Efficiency Analysis of a Deep Learning Workload on an IBM “Minsky” Platform

2019 ◽  
pp. 255-262
Author(s):  
Mauricio D. Mazuecos Pérez ◽  
Nahuel G. Seiler ◽  
Carlos Sergio Bederián ◽  
Nicolás Wolovick ◽  
Augusto J. Vega
Keyword(s):  
Deep Learning ◽  
Power Efficiency ◽  
Efficiency Analysis

Meshing Efficiency Analysis of Two Degree-of-Freedom Epicyclic Gear Trains

2016 ◽  
Vol 138 (8) ◽  
Author(s):  
Essam Lauibi Esmail
Keyword(s):  
Reference Frame ◽  
Power Efficiency ◽  
Power Flow ◽  
Flow Direction ◽  
Efficiency Analysis ◽  
Degree Of Freedom ◽  
Gear Train ◽  
Epicyclic Gear ◽  
Gear Trains ◽  
Two Degree Of Freedom

The concept of potential power efficiency is introduced as the efficiency of an epicyclic gear train (EGT) measured in any moving reference frame. The conventional efficiency can be computed in a carrier-moving reference frame in which the gear carrier appears relatively fixed. In principle, by attaching the reference frame to an appropriate link, torques can be calculated with respect to each input, output, or (relatively) fixed link in the EGT. Once the power flow direction is obtained from the potential power ratio, the torque ratios are obtained from the potential power efficiencies, the particular expression of the efficiency of the EGT is found in a simple manner. A systematic methodology for the efficiency analysis of one and two degree-of-freedom (DOF) EGTs is described, and 14 ready-to-use efficiency formulas are derived for 2DOF gear pair entities (GPEs). This paper includes also a discussion on the redundancy of the efficiency formulas used for 1DOF GPEs. An incomplete in the efficiency formulas in previous literature, which make them susceptible to wrong application, is brought to light.

Hydrodynamic response and power efficiency analysis of heaving wave energy converter integrated with breakwater

2019 ◽  
Vol 195 ◽  
pp. 1174-1186 ◽  
Author(s):  
Ratthakrit Reabroy ◽  
Xiongbo Zheng ◽  
Liang Zhang ◽  
Jun Zang ◽  
Zheng Yuan ◽  
...  
Keyword(s):  
Wave Energy ◽  
Power Efficiency ◽  
Efficiency Analysis ◽  
Wave Energy Converter ◽  
Energy Converter ◽  
Hydrodynamic Response

scholarly journals Power efficiency analysis of a multi-oscillated current resonant type DC-DC converter

2008 ◽  
Author(s):  
Tadahiko Sato ◽  
Ryu Araki ◽  
Hiroyuki Ota ◽  
Nobuhiro Higashi ◽  
Yoichi Ishizuka ◽  
...  
Keyword(s):  
Power Efficiency ◽  
Efficiency Analysis

scholarly journals Cost and Efficiency Analysis of PV Transformer-Less Inverter Topology to Grid Connection

2017 ◽  
Vol 2 (3) ◽  
pp. 17
Author(s):  
Shahreen Noor ◽  
Md. Noman Habib Khan ◽  
K.M. Abdul Al Woadud
Keyword(s):  
Renewable Energy ◽  
Power Efficiency ◽  
High Efficiency ◽  
Efficiency Analysis ◽  
Maintenance Cost ◽  
Grid Connection ◽  
Environmental Friendly ◽  
System Maintenance ◽  
The Cost ◽  
Inverter Topology

Photovoltaic (PV) inverters bear a part and parcel role due to cost and power efficiency where it can be used either in Transformer based system or Transformer-less system. Both system even though the renewable energy which is fully Environmental friendly, however some limitations such as bulky system, maintenance cost increasing indicate for avoiding the Transformer based inverter.  In contrast, Transformer -less inverter topology is recovering the TRX based issue and to reduce the overall system cost size with high efficiency. In this paper, Transformer -based inverters have been discussed as well as Transformer –less (TRX) inverter topologies and main focusing part is the cost analysis of TRX inverter topology to grid connection and the different marking process of PV-TRX Inverter Topology to Grid Connection has been shown as well as comparison will be shown with Bangladesh.

scholarly journals Power efficiency analysis in various types of coil design

2020 ◽  
Vol 858 ◽  
pp. 012055
Author(s):  
N Sari ◽  
M Khoiro ◽  
AY Rohedi ◽  
G Yudoyono ◽  
YH Pramono
Keyword(s):  
Power Efficiency ◽  
Efficiency Analysis ◽  
Coil Design

Energy Efficiency Analysis on a Farm Biogas CHP Plant

2011 ◽  
Author(s):  
Huixian Shi ◽  
Xiaomei Pei ◽  
Hongguang Zhu ◽  
Yongming Li
Keyword(s):  
Energy Efficiency ◽  
Flue Gas ◽  
Power Efficiency ◽  
Efficiency Analysis ◽  
Heat Efficiency ◽  
Gear Change ◽  
Power Load ◽  
Chicken Farm ◽  
Chp System ◽  
Energy Efficiency Analysis

Based on the mode of off-grid and supplying power for a 10,000 Chicken Farm, there is a experimental study and energy efficiency analysis on a biogas CHP. The results indicate that, the biogas CHP system can satisfy the demand on heating of biogas digester and electricity of farm’s. Reusing the gas-fired remaining heating powered in the internal engine to heat the digester, it can guarantee the temperature in the biogas digester between 32°C and 34°C, even if the climate is very cold. The power load vary obviously in 24 hours, power efficiency and energy efficiency of the biogas CHP plant increase with increasing of the power load of the farm. In low power load operation, the power generation efficiency and energy efficiency of entire system is very low, respectively 4.3%–19%, with the increasing of the load, the measured power efficiency is up to 19.2% when energy efficiency up to 47%, which is lower than that of the fossil CHP. By analyzing the main reason, it is found that the off-grid mode restricts the power load to vary with that of the farm passively, the heat efficiency exchanging is low between the cylinder water and the flue gas heat exchanger of the system, need to be reconstructed and installed gear change iso-frequency mechanism for decreasing the in-gas-fired quantity.

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