Comparison of Leakage Performance in Three Types of Gas Annular Seals Operating at a High Temperature (300°C). Luis San Andres,Zachary Ashton. Tribology Transactions . 2010San Andres, L., and Ashton, Z., 2010, "Comparison of Leakage Performance in Three Types of Gas Annular Seals Operating ...
Frequent occurrence of gas accidents is the main factor restricting the safe production in China's coal mines.In this paper,the factors that influence the gas explosion in heading face were identified and analyzed based on the theory of three types of dangerous sources,and on this basis,a safet...
aAt least three (3) of four types of characters (capital, lowercase, number and symbol) should be used 应该使用至少三(3)字符(资本的四个类型,小写,数字和标志)[translate]
看图填空(输气系统组成Gas transmission system composition:三类管网与站、场装置组成Three types of pipe network and station, field equipment composition)
The initial bulb compositions were chosen so that various types of ternary interactions occurred. These interactions were well-described by the Maxwell-Stefan equations. The average deviation of the experimental mole fractions for all runs from those predicted by the Maxwell-Stefan equations was 0.45 ...
At least a portion of the carbon dioxide stream and hydrocarbon stream are liquefied or converted to a supercritical liquid. At least some of the carbon dioxide gas stream (as a liquid or supercritical fluid) is used in a cleaning step, preferably a polymer cleaning step, and more preferably...
Understanding the pathways of gas hydrate nucleation and growth are of great scientific significance and will provide guidance for controlling strategies of hydrate formation. Guest gas exist in the form of a large number of nanobubbles to overcome the solubility barrier when guest gas is provided in...
(LCA)18,19, while detractors draw attention to the energy production phase and its possible diversion of resources from other environmental policies20. The environmental footprint of BEVs, including their electricity consumption and resultant greenhouse gas emissions, varies depending on operational ...
We further differentiate between the thickness of the ionomer film on surfaces and within the network to understand the pathways of proton and gas diffusion. We also investigate the accessibility of platinum surfaces by the network and relate this to electrochemical measurements in low relative ...
Liquid droplets can be torn from film surface and entrained into the core of gas stream. The presence of waves and entrainment exerts a very significant influence on the integral flow characteristics such as pressure drop and heat transfer. The prediction of the integral characteristics of the gas...