Design and Performance of Surfactants for Carbon Dioxide

2003 ◽  
pp. 285-308 ◽  
Author(s):  
Julian Eastoe ◽  
Audrey Dupont ◽  
Alison Paul ◽  
David C. Steytler ◽  
Emily Rumsey
Keyword(s):  
Carbon Dioxide ◽  
And Performance

Cost and Performance of PC and IGCC Plants for a Range of Carbon Dioxide Capture

2011 ◽  
Author(s):  
Kristin Gerdes ◽  
James B. Black ◽  
John l. Haslbeck ◽  
Andrew P. Jones ◽  
Wayne L. Lundberg ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Capture ◽  
And Performance

Oxygen uptake, acid-base status, and performance with varied inspired oxygen fractions

1980 ◽  
Vol 49 (5) ◽  
pp. 863-868 ◽  
Author(s):  
R. P. Adams ◽  
H. G. Welch
Keyword(s):  
Carbon Dioxide ◽  
Oxygen Uptake ◽  
Bicycle Ergometer ◽  
Carbon Dioxide Tension ◽  
Limiting Factor ◽  
Vo2 Max ◽  
And Performance ◽  
Lactate Levels ◽  
Performance Times ◽  
Inspired Oxygen

Six subjects rode a bicycle ergometer on three occasions breathing 17, 21, or 60% oxygen. In addition to rest and recovery periods, each subject worked for 10 min at 55% of maximal oxygen uptake (VO2 max) and then to exhaustion at approximately 90% VO2 max. Performance time, inspired and expired gas fractions, ventilation, and arterialized venous oxygen tension (PO2), carbon dioxide tension (PCO2), lactate, and pH were measured. VO2, carbon dioxide output, [H+]a, and [HCO3-]a were calculated. Performance times were longer in hyperoxia than in normoxia or hypoxia. However, VO2 was not different at exhaustion in normoxia compared with hypoxia or hyperoxia. During exercise, hypoxia was associated with increased lactate levels and decreased [H+]a, PCO2, and [HCO3-]a. The opposite trends were generally associated with hyperoxia. At exhaustion, [H+]a was not different under any inspired oxygen fraction. These results support the contention that oxygen is not limiting for exercise of this intensity and duration. The results also suggest that [H+] is a possible limiting factor and that the effect of oxygen on performance is perhaps related to control of [H+].

Sun, wind, rain and the sewer: outward form opportunities in a degraded landscape

2009 ◽  
Vol 13 (3-4) ◽  
pp. 285-294
Author(s):  
Timothy Stenson
Keyword(s):  
Carbon Dioxide ◽  
Financial Crisis ◽  
Housing Market ◽  
Global Financial Crisis ◽  
Good News ◽  
The Us ◽  
The Usa ◽  
And Performance ◽  
The Global Financial Crisis

The US housing market is infamous on at least two counts: implicated in the global financial crisis and notorious for its unsustainable consumption of resources and consequent discharge of carbon dioxide. Lately anything like good news regarding housing in the USA is scarce. However, the pause resulting from the collapse of the market, and increasing concern regarding building's agency in the environment, combine to provide an opportunity to reconsider the form and performance of housing. This may yet create an opening for design.

Australian grains free-air carbon dioxide enrichment (AGFACE) facility: design and performance

2009 ◽  
Vol 60 (8) ◽  
pp. 697 ◽  
Author(s):  
Mahabubur Mollah ◽  
Rob Norton ◽  
Jeff Huzzey
Keyword(s):  
Carbon Dioxide ◽  
Atmospheric Carbon Dioxide ◽  
Operating Time ◽  
Carbon Dioxide Concentration ◽  
Growth Yield ◽  
Triticum Aestivum L ◽  
Interactive Effects ◽  
Temporal And Spatial Distribution ◽  
And Performance ◽  
Carbon Dioxide Co2

The AGFACE project commenced in June 2007 at Horsham (36°45′07″S, 142°06′52″E; 127 m elevation), Victoria, Australia. Its aim is to quantify the interactive effects of elevated atmospheric carbon dioxide concentration (e[CO2]), nitrogen, temperature (accomplished by early and late sowing times), and soil moisture on the growth, yield, and water use of wheat (Triticum aestivum L.) under Australian conditions. The main engineering goal of the project was to maintain an even temporal and spatial distribution of carbon dioxide (CO2) at 550 μmol/mol within AGFACE rings containing the experimental treatments. Monitoring showed that e[CO2] at the ring-centres was maintained at or above 90% of the target (495 μmol/mol) between 93 and 98% of the operating time across the 8 rings and within ±10% of the target (495–605 μmol/mol) between 86 and 94% of the time. The carbon dioxide concentration ([CO2]) measured inside the rings declined non-linearly with increasing distance downwind of the CO2 source and differed by 3–13% in concentration between the two canopy heights in each ring, but was not affected by wind speed or small variations in [CO2] at the ring-centres. The median values for model-predicted concentrations within the inner 11-m-diameter portion of the rings (>80% of the ring area) varied between 524 and 871 μmol/mol but remained close to target near the centres. The design criteria adopted from existing pure CO2 fumigating FACE systems and new ideas incorporated in the AGFACE system provided a performance similar to its equivalent systems. This provides confidence in the results that will be generated from experiments using the AGFACE system.

The effect of polyurethane on the structure and performance of PES membrane for separation of carbon dioxide from methane

2014 ◽  
Vol 20 (4) ◽  
pp. 1916-1929 ◽  
Author(s):  
Shahab Saedi ◽  
Sayed S. Madaeni ◽  
Keyumars Hassanzadeh ◽  
Ahmad Arabi Shamsabadi ◽  
Saeed Laki
Keyword(s):  
Carbon Dioxide ◽  
And Performance ◽  
Pes Membrane
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