Results 71 to 80 of about 116,012 (304)
Internal Combustion Engines [PDF]
, 2012 Internal combustion engines can fill the role of rotating a propeller or main rotor, being the baseline powerplant approach from the early days of powered flight. Cycle analyses for spark-ignition and compression-ignition piston engine variants are presented in this chapter. The rotary engine approach as a competitive alternative is discussed.
openaire +2 more sources
Results in EngineeringThis study proposes a multi-objective optimisation method using a full factorial design and Kriging- non-dominated sorting genetic algorithm (NSGA) III- technique for order preference by similarity to ideal solution (TOPSIS) to reduce fuel and urea ...
Shichen Yang +7 more
doaj +1 more source
Hydrogen SI and HCCI Combustion in a Direct-Injection Optical Engine [PDF]
, 2009 Hydrogen has been largely proposed as a possible alternative fuel for internal combustion engines. Its wide flammability range allows higher engine efficiency with leaner operation than conventional fuels, for both reduced toxic emissions and no CO2 ...
Aleiferis, PG, Rosati, MF
core +1 more source
Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots
Advanced Robotics Research, EarlyView.Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley +1 more source
Calibration and validation of a combustion-cogeneration [PDF]
, 2008 This paper describes the calibration and validation of a combustion cogeneration model for whole-building simulation. As part of IEA Annex 42, we proposed a combustion cogeneration model for studying residentialscale cogeneration systems based on both ...
Ferguson, A. +3 more
core
Climate Change Threatens Micronutrient Density of European Winter Wheat
Advanced Science, EarlyView.Micronutrients are vital for human health. Wheat is a major staple crop and a significant source of minerals and B‐vitamins. The impact of climate change on their content remains largely unknown. We evaluated micronutrient levels in European winter wheat grown under historical and projected climate conditions. Our findings indicate that future climates
Da Cao +17 more
wiley +1 more source
Advanced Science, EarlyView.This work paves the way for practical photoelectrochemical water splitting devices by addressing key upscaling challenges related to substrate conductivity, absorber inhomogeneity, and mass transfer limitations. Integrated improvements in substrate engineering, material processing, device architecture, and operational conditions allow the development ...
Telmo da Silva Lopes +7 more
wiley +1 more source
Turbochargers for internal combustion engines. [PDF]
, 2010 Tato bakalářská práce se zabývá tématem turbodmychadel spalovacích motorů, nabízí základní systematický pohled na tuto tematiku. Práce je rozdělena do tří hlavních částí. První kapitola se zabývá historií vývoje a užití turbodmychadel.
Holík, Petr
core
The myth of the high-efficiency external-combustion Stirling engine [PDF]
, 2015 The reported discrepancy between theory and experiment for external combustion Stirling engines is explained by the addition of thermal resistance of the combustion gasses to the standard Carnot model. In these cases, the Stirling engine ideal efficiency
Riley, Paul Howard
core +2 more sources