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75 results found

Ideal-gas Thermochemical Properties for Carbon Dioxide and its Isotopologues Calculated from Partition Functions

Data provided by  National Institute of Standards and Technology

Tabulations at 1 K intervals from 1 K to 6000 K of the partition function and standard-state isobaric heat capacity, entropy, and enthalpy for the 12 natural isotopologues of CO2, along with their standard uncertainties. Calculations performed with a partition function constructed from spectroscopic and theoretical data as described in the Appendix of the paper by A.H. Harvey, S.A. Tashkun, and E.W. Lemmon, to be submitted to J. Phys. Chem. Ref. Data. Note that the model does not account for dissociation of the CO2 molecule, making the results incomplete above approximately 3500 K.

Tags: carbon dioxide,heat capacity,enthalpy,entropy,ideal-gas properties,equation of state,partition function,thermochemistry,

Modified: 2024-02-22

Views: 0

Absolute 13C/12C Isotope Amount Ratio for Vienna Pee Dee Belemnite from Infrared Absorption Spectroscopy

Data provided by  National Institute of Standards and Technology

Data set from peer-reviewed publication: A. J. Fleisher et al., Absolute 13C/12C Isotope Amount Ratio for Vienna Pee Dee Belemnite from Infrared Absorption Spectroscopy, Nature Physics. Measurements of isotope ratios are predominantly made with reference to standard specimens that have been characterized in the past. In the 1950s, the carbon isotope ratio was referenced to a belemnite sample collected by Heinz Lowenstam and Harold Urey in South Carolina?s Pee Dee region.

Tags: greenhouse gases,carbon dioxide,oceans,ph,marine mammals,remote sensing,seabirds,Environment and Climate,

Modified: 2024-02-22

Views: 0

NIST/ARPA-E Database of Novel and Emerging Adsorbent Materials

Data provided by  National Institute of Standards and Technology

The NIST/ARPA-E Database of Novel and Emerging Adsorbent Materials is a free, web-based catalog of adsorbent materials and measured adsorption properties of numerous materials obtained from article entries from the scientific literature. Search fields for the database include adsorbent material, adsorbate gas, experimental conditions (pressure, temperature), and bibliographic information (author, title, journal), and results from queries are provided as a list of articles matching the search parameters.

Tags: adsorbate,adsorbent,adsorption,isotherm,metal organic Framework,porous Material,surface science,Advanced Materials,Energy,Environment and Climate,manufacturing,

Modified: 2024-02-22

Views: 0

HVAC SIMulation PLUS other systems (HVACSIM+)

Data provided by  National Institute of Standards and Technology

The first version of HVACSIM+, which stands for "HVAC SIMulation PLUS other systems", was introduced by National Institute of Standards and Technology (NIST) in 1985 as a computer simulation tool to simulate entire building systems. Since then, the HVACSIM+ computer program package and manuals have been distributed to researchers, students, and consultants in more than 40 countries around the world.

Tags: Building control systems,Heating,ventilation and air conditioning equipment,Energy,Energy efficiency,cyber-physical systems,Modeling and simulation research and Numerical methods and software,

Modified: 2024-02-22

Views: 0

NeXLCore.jl - A library of basic physics for atomic X-ray processes in the Julia language

Data provided by  National Institute of Standards and Technology

NeXLCore.jl represents the basic physics related data and algorithms necessary to interpret and understand X-ray emission.

Tags: x-ray,physics,Energy,mass absorption,Ionization,bremsstrahlung,characteristic,

Modified: 2024-02-22

Views: 0

High Accuracy Near-infrared Carbon Dioxide Intensity Measurements to Support Remote Sensing

Data provided by  National Institute of Standards and Technology

Data files for the publication "High Accuracy Near-infrared Carbon Dioxide Intensity Measurements to Support Remote Sensing" in Geophysical Research Letters

Tags: greenhouse gases,carbon dioxide,remote sensing,

Modified: 2024-02-22

Views: 0

SRM 1450e Fibrous Glass Board

Data provided by  National Institute of Standards and Technology

SRM 1450e Fibrous Glass Board - This Standard Reference Material (SRM) is intended primarily for use in the measurement of the thermal conductivity or thermal resistance of insulation materials. SRM 1450e is a high-density fibrous glass board certified for bulk density and thermal conductivity. The SRM can be used in conjunction with ASTM C177 or ASTM C518. A unit of SRM 1450e consists of a square panel of fibrous glass and phenolic binder molded into a semi-rigid board.

Tags: bulk density,certified reference material,fit,guarded hot plate,high density molded fibrous glass board,model,regression analysis,Standard Reference Material,thermal conductivity,thermal insulation,

Modified: 2024-02-22

Views: 0

Data from Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner

Data provided by  National Institute of Standards and Technology

These data from the laboratory tests of a prototype residential liquid-to-air ground-source air conditioner (GSAC) using CO2 as the refrigerant. The data collection and processing methods are described in detail in this report:

Report Title: "Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner", NIST Technical Note 2068
Publication Date: October 2019
DOI: https://doi.org/10.6028/NIST.TN.2068
Authors: Harrison Skye, Wei Wu

Tags: Air conditioner,carbon dioxide,CO2,ground-source heat pump,subcritical and transcritical cycles,

Modified: 2024-02-22

Views: 0

Manufacturing Cost Guide

Data provided by  National Institute of Standards and Technology

The Manufacturing Cost Guide is a tool that estimates the costs that US manufacturers face and can be used to help gauge the potential returns on manufacturing industry research projects through cost reductions. These costs are grouped into various standardized categories such as the North American Industry Classification System (NAICS) and the Standard Occupational Classification (SOC) system along with other non-standardized costs.

The tool can be used to answer questions such as:

Tags: manufacturing,cost,input output,economics,labor,maintenance,Energy,value added,supply chain,environmental impact,environmental sustainability,

Modified: 2024-02-22

Views: 0

High Temperature High Pressure U-tube Density Measurements

Data provided by  National Institute of Standards and Technology

Compressed-liquid density data for pure fluids and binary mixtures. Temperature range 270 K to 470 K up to pressures of 50MPa.

Tags: density,vibrating U-tube,compressed-liquids,Energy,

Modified: 2024-02-22

Views: 0