fluid (i.e., air or products of combustion) divided by the acceleration of gravity in the place where the weight flow is measured. The relatively small effect of the weight flow of fuel in creating a difference between the weight flow of the inlet and exhaust streams is intentionally...
The hourly global solar irradiance data measured in the Eagle Ford area between 1991–2010 was used to calculate the monthly average hourly clearness index (kt) values. The index is the ratio of the global solar irradiance on a horizontal surface (I) to the hourly extraterrestrial solar ...
Following the preparation, membrane envelope quality control testing was done with an in-house developed envelope-testing unit. With the envelope-testing unit, the permeances of the single gases (N2, O2 and CO2) were measured and CO2/N2 and O2/N2 selectivities were calculated for each envelope...
An ongoing concern for any cryptocurrency that requires transaction fees is the price users pay for the transactions. Before 2020, gas fees on Ethereum were very low, measured in a few cents with occasional spikes. After January 2020, gas fees began climbing as the network attracted new users...
We show that measured optical transmittance of an ultra thin gas depends on the detector size. To this end we conducted an experiment that compares transmittances measured in parallel with a pair of detectors with different diameters ranging from 2 to 20
The viscosity of natural gas can be measured in a laboratory and it depends upon pressure, temperature, and composition. When laboratory data are not available, gas viscosity can be computed using available empirical data. Contrary to the liquids, the viscosity of gas increases with temperature for...
Support for the importance of flooding in the slug/churn transition has been provided by Kaji et al. (2009a). They measured void fraction time series from several, closely-spaced conductance probes. By selecting that data from the Taylor bubble sections and employing a cross-correlational ...
Most of us take our energy for granted. We flick the switch and expect the lights to come on, and we turn the heating on and expect the room to warm up. But understanding how our energy is measured and therefore how it's charged could help you get a cheaper deal. ...
Gasmassflow ratecan be directly measured, independent of pressure and temperature effects, with thermal mass flow meters, Coriolis mass flow meters, or mass flow controllers. This video may interest you for a review of mass, volume, and density....
How is air quality measured?Even something as simple as breathing can get complicated.(more)See all videos for this article Most air contaminants originate from combustion processes. During the Middle Ages the burning of coal for fuel caused recurrent air pollution problems in London and other larg...