Results 31 to 40 of about 99,114 (312)
Quali-quantitative considerations on low-flow well purging and sampling
Acque Sotterranee - Italian Journal of Groundwater, 2021 This article deals with both the main advantages and issues related to groundwater purging and sampling that are usually carried out through the so-called low-flow methodology or with the method based on the purging of 3-5 well volumes, which is still widely used in environmental monitoring.
Giuseppe Sappa +1 more
openaire +3 more sources
EFFECT OF THE APPLICATION OF MICROWAVE ENERGY ON THE REGENERATION OF THE ADSORBENT [PDF]
, 2018 Today, energy conservation is a priority. This is due to the shortage of energy resources, the growth of their cost and global environmental problems. The production of compressed air is a wery costly and power-consuming process.
Aleksenko , Borys +3 more
core +2 more sources
Reduced complexity models for water management and anode purge scheduling in DEA operation of PEMFCs [PDF]
, 2010 In this work, the dynamic behavior of Fuel Cell operation under Dead-Ended Anode conditions is shown. A DEA can be fed with dry hydrogen, since water crossing through the membrane is sufficient to humidify the fuel.
Siegel, Jason B. +3 more
core +1 more source
Novel high-pressure turbine purge control features for increased stage efficiency
Journal of the Global Power and Propulsion Society, 2017 Rim seals throttle flow and have shown to impact the aerodynamic performance of gas turbines. The results of an experimental investigation of a rim seal exit geometry variation and its impact on the high-pressure turbine flow field are presented.
Rainer Schädler +5 more
doaj +1 more source
Journal of Applied Fluid Mechanics, 2020 Secondary air bled from the compressor which bypasses the combustion chamber is used to seal the turbine components from incoming hot gas. Interaction of this secondary air or purge flow with the mainstream can alter the flow characteristics of turbine ...
S. Babu, S. Anish
doaj
Hydraulic Conductivity Estimation Using Low-Flow Purging Data Elaboration in Contaminated Sites [PDF]
Water, 2020 Hydrogeological characterization is required when investigating contaminated sites, and hydraulic conductivity is an important parameter that needs to be estimated. Before groundwater sampling, well water level values are measured during low-flow purging to check the correct driving of the activity.
De Filippi F. M. +3 more
openaire +1 more source
Design of a unit to produce hot distilled water for the same power consumption as a water heater [PDF]
, 1973 Unit recovers 97% of water contained in pretreated waste water. Some factors are: cleansing agent prevents fouling of heat transfer surface by highly concentrated waste; absence of dynamic seals reduces required purge gas flow rate; and recycle loop ...
Bambenek, R. A., Nuccio, P. P.
core +1 more source
Advanced Functional Materials, EarlyView.By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu +5 more
wiley +1 more source
A percolation theory-based approach for analyzing fluid flow mechanism in blanket pebble beds
Nuclear Materials and EnergyBlanket pebble beds consist of numerous small-diameter particles, posing significant challenges for traditional simulation methods in terms of modeling accuracy and computational efficiency.
Ziyang Wang +4 more
doaj +1 more source
Química Nova, 2004 The aim of the present work was to test the combination of non-esterified fatty acid (NEFA) isolation using fumed silicon dioxide with capillary gas-chromatography (C-GC) with splitless injection for the analysis of NEFAs in human plasma.
Jacqueline G. Ney +2 more
doaj +1 more source