scholarly journals Constant rate thermal analysis for enhancing the long-term CO2 capture of CaO at Ca-looping conditions

2013 ◽  
Vol 108 ◽  
pp. 108-120 ◽  
Author(s):  
Jose M. Valverde ◽  
Pedro E. Sanchez-Jimenez ◽  
Antonio Perejon ◽  
Luis A. Perez-Maqueda
Keyword(s):  
Thermal Analysis ◽  
Co2 Capture ◽  
Constant Rate

MXene-supported stable adsorbents for superior CO2 capture

2021 ◽  
Author(s):  
Faqian Liu ◽  
Xin Liu ◽  
Lishui Sun ◽  
Rong-Xun Li ◽  
Chunxiao Yin ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Term Stability ◽  
Long Term Stability ◽  
Solid Adsorbents

Polyamine-based solid adsorbents are promising candidates for CO2 capture, but long-term stability under practical regeneration conditions (100% CO2 at 120 ℃) remains the biggest hurdle. In this paper, we prepared...

Long-term thermal two- and three-dimensional analysis of roller compacted concrete dams supported by monitoring verification

2010 ◽  
Vol 37 (4) ◽  
pp. 600-610 ◽  
Author(s):  
Vladan Kuzmanovic ◽  
Ljubodrag Savic ◽  
John Stefanakos
Keyword(s):  
Thermal Analysis ◽  
Boundary Conditions ◽  
Thermal Field ◽  
Numerical Models ◽  
Three Dimensional ◽  
Roller Compacted Concrete ◽  
Rcc Dam ◽  
Field Investigations ◽  
Good Agreement

This paper presents two-dimensional (2D) and three-dimensional (3D) numerical models for unsteady phased thermal analysis of RCC dams. The time evolution of a thermal field has been modeled using the actual dam shape, RCC technology and the adequate description of material properties. Model calibration and verification has been done based on the field investigations of the Platanovryssi dam, the highest RCC dam in Europe. The results of a long-term thermal analysis, with actual initial and boundary conditions, have shown a good agreement with the observed temperatures. The influence of relevant parameters on the thermal field of RCC dams has been analyzed. It is concluded that the 2D model is appropriate for the thermal phased analysis, and that the boundary conditions and the mixture properties are the most influential on the RCC dam thermal behavior.

Factors Controlling the Rate of Interest on Long-Term Investments

1935 ◽  
Vol 66 (2) ◽  
pp. 167-195
Author(s):  
H. E. Raynes
Keyword(s):  
Human Life ◽  
Natural Rate ◽  
Constant Rate ◽  
Natural Rate Of Interest ◽  
Insurance Funds ◽  
Measurable Distance

The net rate of interest yielded by the investment of insurance funds has seldom departed far from 4%. With such a long record of a fairly constant rate of interest we may not unreasonably ask ourselves whether 4% is in any sense a “natural” rate of interest for long-term investments and, if so, what are the factors which control the rate within measurable distance of this figure. Professor Cassel has definitely put the question “why is the rate of interest -04 instead of -004 or -0004?” and he has answered it by indicating that the rate is controlled by the duration of human life.

scholarly journals Flexural Properties of PVC/Bamboo Composites under Static and Dynamic-Thermal Conditions: Effects of Composition and Water Absorption

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Shahril Anuar Bahari ◽  
Warren J. Grigsby ◽  
Andreas Krause
Keyword(s):  
Mechanical Properties ◽  
Thermal Analysis ◽  
Dynamic Mechanical Thermal Analysis ◽  
Elevated Temperatures ◽  
Flexural Modulus ◽  
Thermal Conditions ◽  
Flexural Properties ◽  
Particle Sizes ◽  
Flexural Performance

Polyvinyl chloride (PVC)/bamboo composites have been prepared and assessed for their use in interior and exterior load-bearing applications. PVC composites were formed by compounding PVC with different bamboo particle sizes and loadings. The mechanical properties of these composites were determined at both ambient and elevated temperatures and after long-term water soaking. Analysis revealed that bamboo incorporation improved the PVC composite flexural modulus which was also observed with dynamic mechanical-thermal analysis on heating composites toca.70°C. Addition of 25% and 50% bamboo particles increases flexural modulus by 80% with dependency on whether fine (<75 μm) or coarse (<1 mm) particles were used. On water soaking to saturation, composites had water weight uptakes of 10%, with reduced flexural properties obtained for all water-soaked composites. Nonetheless, the results of this study show that PVC/bamboo composites achieve the minimum flexural performance of ASTM D 6662, indicating potential for their use in exterior applications.

scholarly journals CO2 capture project phase 2 (CCP2) — storage program: Closing long-term CO2 geological storage gaps relevant to regulatory and policy development

2009 ◽  
Vol 1 (1) ◽  
pp. 35-39
Author(s):  
Scott Imbus ◽  
Dan Kieke ◽  
Walter Crow ◽  
Marcos Briceno ◽  
Scott Rennie ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Policy Development ◽  
Phase 2 ◽  
Geological Storage ◽  
Co2 Geological Storage
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