A5026999576- Building Energy and Comfort Optimization
- Energy Efficiency and Management
- Phase Change Materials Research
- Smart Grid Energy Management
- Urban Heat Island Mitigation
- Sustainable Building Design and Assessment
- Additive Manufacturing and 3D Printing Technologies
- Hygrothermal properties of building materials
- Adsorption and Cooling Systems
- Carbon Nanotubes in Composites
- Conducting polymers and applications
- Advanced Battery Technologies Research
- Environmental Impact and Sustainability
- Energy, Environment, and Transportation Policies
- Electric Vehicles and Infrastructure
- Nanotechnology research and applications
- Microgrid Control and Optimization
- Graphene research and applications
- BIM and Construction Integration
- Electric and Hybrid Vehicle Technologies
- 2D Materials and Applications
- Refrigeration and Air Conditioning Technologies
- Climate Change Policy and Economics
- Noise Effects and Management
- Organic Electronics and Photovoltaics
National Renewable Energy Laboratory
2017-2023
Oak Ridge National Laboratory
2012-2017
National Transportation Research Center
2015-2016
Shell (Netherlands)
2016
Office of Scientific and Technical Information
2012-2014
National Technical Information Service
2012-2014
Tennessee Valley Authority
2014
SRA International (United States)
2013
Georgia Institute of Technology
2008-2012
Monolayer hexagonal boron nitride (hBN) attracts significant attention due to the potential be used as a complementary two-dimensional dielectric in fabrication of functional 2D heterostructures. Here we investigate growth stages hBN single crystals and show that change their shape from triangular truncated further depending on copper substrate distance precursor. We suggest observed crystal variation is affected by ratio nitrogen active species concentrations surface inside CVD reactor....
Abstract This paper evaluates the effectiveness of p ‐doping transparent single‐walled carbon nanotube (SWNT) films via chemical treatment with HNO 3 and SOCl 2 . Stability improvement in electrical conductivity after doping is investigated for different treatments as a function exposure time to air temperature. Doped were found have greater than twofold increase sheet resistance values low 105 Ω sq −1 an optical transmittance 80% at 550 nm. However, enhancements demonstrated limited...
Energy storage needs to support commercial and residential buildings in the U.S. 2050 for various 100% renewable energy scenarios.
Chemical vapor deposition (CVD) has been established as the most effective way to grow large area two-dimensional materials. Direct study of etching process can reveal subtleties this competing with growth reaction and thus provide necessary details overall mechanism. Here we investigate hydrogen-induced hBN graphene compare results classical kinetic Wulff construction model. Formation anisotropically etched holes in center single crystals was observed along changes crystals' circumference....
This paper presents a statistical method for modeling the behavior of household occupants to estimate residential energy consumption. Using data gathered by U.S. Census Bureau in American Time Use Survey (ATUS), actions carried out survey respondents are categorized into ten distinct activities. These activities defined correspond major consuming loads commonly found within sector. Next, time varying minute resolution Markov chain based models different occupant types developed. these...
The additive manufacturing integrated energy (AMIE) demonstration utilized three-dimensional (3D) printing as an enabling technology in the pursuit of construction methods that use less material, create waste, and require to build operate. Developed by Oak Ridge National Laboratory (ORNL) collaboration with Governor's Chair for Energy Urbanism, a research partnership University Tennessee (UT) ORNL led Skidmore, Owings & Merrill LLP (SOM), AMIE embodies suite innovations demonstrating...
In this report, the specific contact resistance between a thin film single wall carbon nanotube electrode and deposited silver was measured. The found to be 20 mΩ cm2, which is an order of magnitude higher than typically observed in standard Si photovoltaic technology. We demonstrate that when utilized as transparent anode organic photovoltaics, has potential induce non-negligible resistive power losses. Thus, will adversely affect performance these systems should therefore addressed.
In this report, we present a description of the optical and electronic properties as-deposited, annealed, chemically treated single-walled carbon nanotube (SWNT) films showing metallic or semiconducting behavior. As-deposited annealed SWNT were significantly less conductive than films; however, chemical treatment resulted in sheet resistance values as low 60 Ω·sq−1 comparison to 76 for similarly processed films. We conclude that greater improvement electrical conductivity observed film...
Rapid vehicle and powertrain development has become essential to for the design implementation of vehicles that meet exceed fuel efficiency, cost, performance targets expected by today's consumer while keeping pace with reduced cycle more frequent product releases. Recently, advances in large-scale additive manufacturing have provided means bridge hardware-in-the-loop (HIL) experimentation preproduction mule chassis evaluation. This paper details accelerated a printed range-extended electric...
This paper presents a MATLAB based dynamic model for predicting residential power demand. Markov chain occupant behavior models developed using data gathered by the U.S. Census Bureau in American Time Use Survey (ATUS) are used conjunction with of most common loads to predict demand on one-second time scale. First, methods utilized modeling each load presented. Next, an explanation how these combined is given. Simulation results showing overall contribution sector shown both winter and...
The moisture durability of an envelope component such as a wall or roof is difficult to predict. Moisture depends on all the construction materials used, well climate, orientation, air tightness, and indoor conditions. Modern building codes require more insulation tighter but provide little guidance about how ensure these energy-efficient assemblies remain durable. Furthermore, new products are introduced, builders increasingly uncertain long-term their designs. Oak Ridge National Laboratory...
This paper presents a MATLAB based dynamic simulation tool for estimating demand response potential from residential loads. First, review of strategies is conducted. Next, the modeling approach used during development this described. Markov chain occupant behavior models constructed using data gathered by U.S. Census Bureau in American Time Use Survey (ATUS) are conjunction with most common loads to predict changes power on one-minute time scale. Separate control schemes along these simulate...
This study presents the modeling and controls of a community energy storage system composed repurposed used electric or plug-in hybrid vehicle (EV/PHEV) battery packs. The expectation is that vehicular batteries will be replaced with fresh pack by original equipment manufacturers (OEMs) once their performance (storage capacity peak power capability) decrease to its 80% initial performance. Community (CES) systems can feasible application these after due economic environmental reasons. These...