Division of Outdoor Nominal Condition of Air Source Heat Pumps in China
Zhileng xuebao, 2019 Air source heat pump,as an important heating and air-conditioning equipment, is widely used in various types of buildings in China.The different climate and building load characteristics within different zones create a gap between the demand for ...
Shi Wenxing, Yang Zixu, Wang Baolong
doaj
Mechanical Properties of Compressed Wood in Accordance with the Compression Ratio
Mokuzai Gakkaishi, 2010 本研究では圧縮木材を構造用接合具として使用することを意図し，様々な圧縮率のスギの圧縮木材を用いて，各種力学特性値の密度との関係を調べた。非圧縮材料の物性値を元にした基準化を行うことで，材質向上の傾向を明らかにするとともに，圧密の過程に伴う細胞の変形モデルと比較することで，定性的な説明を行った。結果，縦圧縮・引張および曲げ特性値は密度に比例したが，せん断特性はLR面とLT面でそれぞれ異なった。LT面横圧縮特性は弾性率，強度ともに密度上昇率に対し約2乗に比例して増大した一方，LR方向のそれは早材細胞が完全に圧密細胞に変わる圧縮率程度まではあまり変化無く，それ以降に急激に上昇する結果が得られた。これらの傾向をハニカムセルの変形を考慮する事でモデル化し，元材料の力学特性値と圧縮率 ...
Kitamori, Akihisa +3 more
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Study of NOx Emissions of S.I. Engine Fueled with Different Kinds of Hydrocarbon Fuels and Hydrogen
Al-Khawarizmi Engineering Journal, 2010 Liquefied petroleum gas (LPG), Natural gas (NG) and hydrogen were used to operate spark ignition internal combustion engine Ricardo E6, to compare NOx emissions emitted from the engine, with that emitted from engine fueled with gasoline as a fuel.The ...
Qahtan A. Abass, Miqdam T. Chaichan
doaj
Influences of Compression Ratios on Sound Absorption Performance of Porous Nickel–Iron Alloy
Metals, 2018 The improvement of sound absorption performance of porous metal is a focus of research in the field of noise reduction. Influences of compression ratios on sound absorption performance of a porous nickel–iron (Ni–Fe) alloy were investigated.
Panfeng Bai +5 more
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Retracted: Study on the Influence of Compression Ratio on the Rail Contact Fatigue Resistance Property and Its Mechanism. [PDF]
Comput Intell Neurosci, 2023 Intelligence And Neuroscience C.
europepmc +1 more source
Investigation of intake air temperature effect on co-combustion characteristics of NH3/gasoline in naturally aspirated high compression ratio engine with sub-chamber. [PDF]
Sci Rep, 2023 Yilmaz E +8 more
europepmc +1 more source
Analysis of Electrical Efficiency for Positive Displacement Refrigerant Compressor
Zhileng xuebao, 2013 This paper has briefly summarized the development of refrigerant compressor; and accounted the statistic of the electrical efficiency for positive displacement refrigerant compressor.
Ma Yitai, Liu Zhongyan, Li Minxia
doaj
High Compression Ratio Active Pre-chamber Single-Cylinder Gasoline Engine with 50% Gross Indicated Thermal Efficiency. [PDF]
ACS Omega, 2023 Zhan W +6 more
europepmc +1 more source
Experimental study on the effect of spray evaporative condensation on air conditioning performance
Xi'an Gongcheng Daxue xuebaoIn order to reduce the energy consumption of air conditioning units in high-temperature working conditions and improve the energy efficiency ratio of the units, this study proposes to apply the spray evaporative condensation technology to air ...
HUANG Xiang +6 more
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Investigation in PO blending and compression ratio on engine performance and gas emissions including environmental health risk assessment and economic analysis. [PDF]
Environ Sci Pollut Res Int, 2023 Alawa B, Chakma S.
europepmc +1 more source