Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “zero carbon”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 577 records · Page 32
All sourcesNASA NTRSDOE OSTI
DOE OSTI2021

U.S. Department of Energy Solar Decathlon

The U.S. Department of Energy (DOE) Solar Decathlon® Design Challenge is a collegiate competition that challenges student teams to design high-performance buildings that push the boundaries of the industry. In the 2020 Design Challenge, DOE piloted the Design Partners Program, a low-risk opportunity for builders and building owners to harness student innovation and explore zero energy design for current or upcoming projects. Design Partners provide a student team of architects and engineers with project requirements. By the end of the Design Challenge, Design Partners receive a zero-energy design alternative and cost estimate for their project. The collaboration allows Design Partners to incorporate innovative concepts such as grid-interactivity, resilience, and low embodied carbon in a low-risk environment. It also provides the future generation of engineers and architects with invaluable experience designing a building for a client under real-world circumstances. This article summarizes the current policy, technology, health, and economic trends that make zero energy buildings desirable and feasible, and presents the value of the Solar Decathlon to industry. We highlight innovative solutions 2020 Design Partner pilot projects are bringing to the building industry.

30 DIRECT ENERGY CONVERSION↗
DOE OSTI2024

Fluor Solvent Evaluation and Testing New Scope: Techno-economic Assessment of EEMPA Solvent for CO 2 Separations from Natural Gas Combined Cycle Power Plant

In this project, a techno-economic analysis (TEA) and sensitivity studies were conducted to assess the PNNL’s leading water-lean CO 2 capture solvent, EEMPA, for capture CO 2 from a natural gas combined cycle (NGCC) power plant at different levels of capture rate. Process models for the NGCC power plant, integrated with EEMPA carbon capture processes, were developed in Aspen Plus V14 using the most up-to-date property package for EEMPA-H 2 O-CO 2 system. The TEA evaluated EEMPA carbon capture process at normal capture rates (90%, 95% and 97%) against Case B32B (Cansolv) described in NETL Rev4a baseline report, and at higher capture rates aimed at achieving zero or negative emissions from the power plant (400 ppmv, 200 ppmv, and 100 ppmv CO 2 in exhaust gas), compared to typical Direct Air Capture (DAC) technologies. A manuscript was drafted for peer-reviewed publication. The results suggested that the carbon capture cost reaches a minimum of $\$$53.7/tonne CO 2 at 90% capture rate. Compared to Cansolv, one of the industrial benchmarks, EEMPA demonstrates 2-4% cost savings at capture rates up to 95%, but minimal savings at higher capture rate. The water lean-solvent system proves economically attractive for achieving moderate negative emissions (about 200 ppmv CO 2 in exhaust gas, and equivalent to 50% CO 2 removal from air) for NGCC flue gas, with marginal capture costs comparable to direct air capture (DAC) technologies. A sensitivity analysis results reveal that its economic advantage, unaffected by EEMPA price due to low solvent loss and degradation rate. However, the marginal carbon capture cost exceeds $\$$1,000/tonne CO 2 when transitioning from moderate to extreme negative emissions (100 ppmv CO 2 in exhaust gas), suggesting that water-lean solvents may not be economically competitive with other DAC technologies for removing more than 75% CO 2 from air. In addition, initial connection was established with Technology Center Mongstad (TCM) for a potential pilot testing proposal. However, detailed modeling and proposal preparation was not conducted due to the delay of non-disclosure agreement.

20 FOSSIL-FUELED POWER PLANTS↗
DOE OSTI2022

Modeling and Policy Pathways to Decarbonize South Asia’s Industrial Sector

The industrial sector is responsible for one-third of global greenhouse gas emissions, and industrial decarbonization will be an essential component of limiting emissions and mitigating climate change (Rissman et al., 2020). This holds true for South Asian countries as they work toward their stated commitments to reducing emissions in the coming years. India has pledged to reduce the emissions intensity of its gross domestic product (GDP) by 33–35% by 2030 (Government of India, 2016) and announced at COP26 a target of reaching net-zero CO 2 emissions by 2070, a goal that will require rapid decarbonization of energy-intensive industries (WEF, 2021). Bangladesh’s Nationally Determined Contributions include a commitment to reducing greenhouse gas emissions by 6.73% to 15.12% by 2030 (Ministry of Environment, Forest and Climate Change, 2021). While these Nationally Determined Contributions do not explicitly target emissions reductions in industry, Bangladesh’s Energy Efficiency and Conservation (EE&C) Master Plan highlights industry as an important sector for EE&C (Sustainable and Renewable Energy Development Authority, 2015). Sri Lanka has pledged carbon neutrality by 2050, including a reduction in industrial greenhouse gas emissions (Ministry of Environment, 2021). Nepal’s commitment to net-zero greenhouse gas emissions by 2050 includes plans to establish guidelines and technology transitions facilitating industrial decarbonization (Government of Nepal, 2020).

29 ENERGY PLANNING, POLICY, AND ECONOMY↗
DOE OSTI2022

Life-cycle greenhouse gas emissions reduction potential for corn ethanol refining in the USA

This study evaluates how low-carbon production technologies applicable to ethanol plants may reduce the life-cycle greenhouse gas emission (GHG) intensities of corn ethanol production in the USA. Results indicate that options focusing on incremental energy efficiency (e.g., combined heat and power) and yield improvements have a limited impact on GHG reductions. To achieve deep decarbonization (>50% GHG reduction compared to current corn ethanol production), a fuel switch from natural gas (NG) to alternative low-carbon fuels is needed. Replacing 50% of NG demand at ethanol plants with syngas from biomass through gasification or renewable natural gas from animal waste could achieve significant GHG reductions (11.7–23.5 g CO 2 e/MJ ethanol). Adding multiple technologies, including carbon capture and storage, to existing ethanol plants may further reduce GHG emissions to –18.4 g CO 2 e MJ –1 ethanol (including land-use change emissions), which is 120% lower than the carbon intensity of pure gasoline. These results could inform how the ethanol industry could move toward net-zero ethanol production.

09 BIOMASS FUELS↗
DOE OSTI2020

Materials Data on Be(B3H7)2 by Materials Project

BeB5H13BH is alpha carbon monoxide-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four boranediylradical molecules and four BeB5H13 clusters. In each BeB5H13 cluster, Be2+ is bonded in a 4-coordinate geometry to four H+0.71+ atoms. There are a spread of Be–H bond distances ranging from 1.53–1.59 Å. There are five inequivalent B2- sites. In the first B2- site, B2- is bonded in a distorted trigonal non-coplanar geometry to three H+0.71+ atoms. There are a spread of B–H bond distances ranging from 1.20–1.34 Å. In the second B2- site, B2- is bonded in a distorted trigonal non-coplanar geometry to three H+0.71+ atoms. There are a spread of B–H bond distances ranging from 1.19–1.35 Å. In the third B2- site, B2- is bonded in a distorted trigonal non-coplanar geometry to three H+0.71+ atoms. There are a spread of B–H bond distances ranging from 1.19–1.35 Å. In the fourth B2- site, B2- is bonded in a distorted trigonal non-coplanar geometry to three H+0.71+ atoms. There are a spread of B–H bond distances ranging from 1.20–1.34 Å. In the fifth B2- site, B2- is bonded in a tetrahedral geometry to four H+0.71+ atoms. There are a spread of B–H bond distances ranging from 1.20–1.26 Å. There are thirteen inequivalent H+0.71+ sites. In the first H+0.71+ site, H+0.71+ is bonded in a single-bond geometry to one B2- atom. In the second H+0.71+ site, H+0.71+ is bonded in a single-bond geometry to one B2- atom. In the third H+0.71+ site, H+0.71+ is bonded in a single-bond geometry to one B2- atom. In the fourth H+0.71+ site, H+0.71+ is bonded in an L-shaped geometry to one Be2+ and one B2- atom. In the fifth H+0.71+ site, H+0.71+ is bonded in a single-bond geometry to one B2- atom. In the sixth H+0.71+ site, H+0.71+ is bonded in an L-shaped geometry to one Be2+ and one B2- atom. In the seventh H+0.71+ site, H+0.71+ is bonded in an L-shaped geometry to one Be2+ and one B2- atom. In the eighth H+0.71+ site, H+0.71+ is bonded in an L-shaped geometry to one Be2+ and one B2- atom. In the ninth H+0.71+ site, H+0.71+ is bonded in a single-bond geometry to one B2- atom. In the tenth H+0.71+ site, H+0.71+ is bonded in an L-shaped geometry to two B2- atoms. In the eleventh H+0.71+ site, H+0.71+ is bonded in an L-shaped geometry to two B2- atoms. In the twelfth H+0.71+ site, H+0.71+ is bonded in an L-shaped geometry to two B2- atoms. In the thirteenth H+0.71+ site, H+0.71+ is bonded in a single-bond geometry to one B2- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Se2NCl5 by Materials Project

N2(Se2Cl5)2 is alpha carbon monoxide-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of eight ammonia molecules and eight Se2Cl5 clusters. In four of the Se2Cl5 clusters, there are two inequivalent Se1+ sites. In the first Se1+ site, Se1+ is bonded in a 3-coordinate geometry to three Cl1- atoms. There are a spread of Se–Cl bond distances ranging from 2.22–2.77 Å. In the second Se1+ site, Se1+ is bonded in a distorted T-shaped geometry to three Cl1- atoms. There are a spread of Se–Cl bond distances ranging from 2.24–2.70 Å. There are five inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Se1+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Se1+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Se1+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one Se1+ atom. In the fifth Cl1- site, Cl1- is bonded in a 2-coordinate geometry to two Se1+ atoms. In four of the Se2Cl5 clusters, there are two inequivalent Se1+ sites. In the first Se1+ site, Se1+ is bonded in a 3-coordinate geometry to three Cl1- atoms. There are a spread of Se–Cl bond distances ranging from 2.22–2.72 Å. In the second Se1+ site, Se1+ is bonded in a distorted T-shaped geometry to three Cl1- atoms. There are a spread of Se–Cl bond distances ranging from 2.22–2.71 Å. There are five inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Se1+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Se1+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Se1+ atom. In the fourth Cl1- site, Cl1- is bonded in a 2-coordinate geometry to two Se1+ atoms. In the fifth Cl1- site, Cl1- is bonded in a single-bond geometry to one Se1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ClF by Materials Project

ClF is alpha carbon monoxide-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four chlorine fluoride molecules. Cl is bonded in a single-bond geometry to one F atom. The Cl–F bond length is 1.69 Å. F is bonded in a single-bond geometry to one Cl atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NO by Materials Project

NO is alpha carbon monoxide-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four nitroxyl molecules. N is bonded in a single-bond geometry to one O atom. The N–O bond length is 1.17 Å. O is bonded in a single-bond geometry to one N atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HBr by Materials Project

HBr is alpha carbon monoxide structured and crystallizes in the orthorhombic P2_12_12_1 space group. The structure is zero-dimensional and consists of four hydrobromic acid molecules. H1+ is bonded in a single-bond geometry to one Br1- atom. The H–Br bond length is 1.44 Å. Br1- is bonded in a single-bond geometry to one H1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HBr by Materials Project

HBr is alpha carbon monoxide-like structured and crystallizes in the orthorhombic Cmc2_1 space group. The structure is zero-dimensional and consists of four hydrobromic acid molecules. H1+ is bonded in a single-bond geometry to one Br1- atom. The H–Br bond length is 1.47 Å. Br1- is bonded in a single-bond geometry to one H1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HF by Materials Project

HF is alpha carbon monoxide-like structured and crystallizes in the orthorhombic Cmc2_1 space group. The structure is zero-dimensional and consists of four hydrofluoric acid molecules. H1+ is bonded in a single-bond geometry to one F1- atom. The H–F bond length is 0.95 Å. F1- is bonded in a single-bond geometry to one H1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HCl by Materials Project

HCl is alpha carbon monoxide-like structured and crystallizes in the orthorhombic Cmc2_1 space group. The structure is zero-dimensional and consists of four hydrochloric acid molecules. H1+ is bonded in a single-bond geometry to one Cl1- atom. The H–Cl bond length is 1.30 Å. Cl1- is bonded in a single-bond geometry to one H1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AsN9 by Materials Project

AsN9 is Theoretical Carbon Structure-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four AsN9 clusters. As5+ is bonded in a distorted T-shaped geometry to three N+0.56- atoms. There are a spread of As–N bond distances ranging from 1.94–1.96 Å. There are nine inequivalent N+0.56- sites. In the first N+0.56- site, N+0.56- is bonded in a bent 120 degrees geometry to one As5+ and one N+0.56- atom. The N–N bond length is 1.23 Å. In the second N+0.56- site, N+0.56- is bonded in a single-bond geometry to one N+0.56- atom. The N–N bond length is 1.15 Å. In the third N+0.56- site, N+0.56- is bonded in a linear geometry to two N+0.56- atoms. The N–N bond length is 1.15 Å. In the fourth N+0.56- site, N+0.56- is bonded in a single-bond geometry to one N+0.56- atom. The N–N bond length is 1.15 Å. In the fifth N+0.56- site, N+0.56- is bonded in a single-bond geometry to one N+0.56- atom. In the sixth N+0.56- site, N+0.56- is bonded in a distorted bent 120 degrees geometry to one As5+ and one N+0.56- atom. The N–N bond length is 1.23 Å. In the seventh N+0.56- site, N+0.56- is bonded in a linear geometry to two N+0.56- atoms. The N–N bond length is 1.23 Å. In the eighth N+0.56- site, N+0.56- is bonded in a distorted bent 120 degrees geometry to one As5+ and one N+0.56- atom. In the ninth N+0.56- site, N+0.56- is bonded in a linear geometry to two N+0.56- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BrCl by Materials Project

BrCl is alpha carbon monoxide-like structured and crystallizes in the hexagonal P6_3mc space group. The structure is zero-dimensional and consists of two bromine chloride molecules. Br is bonded in a single-bond geometry to one Cl atom. The Br–Cl bond length is 2.17 Å. Cl is bonded in a single-bond geometry to one Br atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiSi4H27(C3O)3 by Materials Project

LiSi3H27(C3O)3Si is alpha carbon monoxide-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four silicon molecules and four LiSi3H27(C3O)3 clusters. In each LiSi3H27(C3O)3 cluster, Li1+ is bonded in a trigonal non-coplanar geometry to three O2- atoms. There is one shorter (1.99 Å) and two longer (2.00 Å) Li–O bond length. There are three inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded in a trigonal non-coplanar geometry to two C4- and one O2- atom. Both Si–C bond lengths are 1.89 Å. The Si–O bond length is 1.73 Å. In the second Si4+ site, Si4+ is bonded in a trigonal non-coplanar geometry to two C4- and one O2- atom. Both Si–C bond lengths are 1.89 Å. The Si–O bond length is 1.73 Å. In the third Si4+ site, Si4+ is bonded in a trigonal non-coplanar geometry to two C4- and one O2- atom. Both Si–C bond lengths are 1.89 Å. The Si–O bond length is 1.73 Å. There are nine inequivalent C4- sites. In the first C4- site, C4- is bonded in a tetrahedral geometry to three H+0.93+ and one O2- atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the second C4- site, C4- is bonded in a tetrahedral geometry to three H+0.93+ and one O2- atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the third C4- site, C4- is bonded in a tetrahedral geometry to three H+0.93+ and one O2- atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.43 Å. In the fourth C4- site, C4- is bonded to one Si4+ and three H+0.93+ atoms to form corner-sharing CSiH3 tetrahedra. All C–H bond lengths are 1.10 Å. In the fifth C4- site, C4- is bonded to one Si4+ and three H+0.93+ atoms to form corner-sharing CSiH3 tetrahedra. All C–H bond lengths are 1.10 Å. In the sixth C4- site, C4- is bonded to one Si4+ and three H+0.93+ atoms to form corner-sharing CSiH3 tetrahedra. All C–H bond lengths are 1.10 Å. In the seventh C4- site, C4- is bonded to one Si4+ and three H+0.93+ atoms to form corner-sharing CSiH3 tetrahedra. All C–H bond lengths are 1.10 Å. In the eighth C4- site, C4- is bonded to one Si4+ and three H+0.93+ atoms to form corner-sharing CSiH3 tetrahedra. All C–H bond lengths are 1.10 Å. In the ninth C4- site, C4- is bonded to one Si4+ and three H+0.93+ atoms to form corner-sharing CSiH3 tetrahedra. All C–H bond lengths are 1.10 Å. There are twenty-seven inequivalent H+0.93+ sites. In the first H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the second H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the third H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the fourth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the fifth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the sixth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the seventh H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the eighth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the ninth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the tenth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the eleventh H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the twelfth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the thirteenth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the fourteenth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the fifteenth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the sixteenth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the seventeenth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the eighteenth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the nineteenth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the twentieth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the twenty-first H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the twenty-second H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the twenty-third H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the twenty-fourth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the twenty-fifth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the twenty-sixth H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. In the twenty-seventh H+0.93+ site, H+0.93+ is bonded in a single-bond geometry to one C4- atom. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Si4+, and one C4- atom. In the second O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Si4+, and one C4- atom. In the third O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Si4+, and one C4- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TcB by Materials Project

TcB is alpha carbon monoxide-like structured and crystallizes in the hexagonal P6_3mc space group. The structure is zero-dimensional and consists of two TcB clusters. Tc3- is bonded in a single-bond geometry to one B3+ atom. The Tc–B bond length is 1.77 Å. B3+ is bonded in a single-bond geometry to one Tc3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BrO2 by Materials Project

O2(BrO)2 is alpha carbon monoxide-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two hydrogen peroxide molecules and four hypobromous acid molecules.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ClO by Materials Project

ClO is alpha carbon monoxide-like structured and crystallizes in the tetragonal I4_1/amd space group. The structure is zero-dimensional and consists of eight chlorine molecules and eight hydrogen peroxide molecules.

36 MATERIALS SCIENCE↗