A5012262299- Electric Vehicles and Infrastructure
- Energy, Environment, and Transportation Policies
- Advanced Battery Technologies Research
- Energy and Environment Impacts
- Vehicle emissions and performance
- Additive Manufacturing and 3D Printing Technologies
- Climate Change Policy and Economics
- Transportation and Mobility Innovations
- Building Energy and Comfort Optimization
- Advanced Aircraft Design and Technologies
- Heat Transfer and Optimization
- Additive Manufacturing Materials and Processes
- Air Traffic Management and Optimization
- Global Energy and Sustainability Research
- Integrated Energy Systems Optimization
- Maritime Transport Emissions and Efficiency
- Hybrid Renewable Energy Systems
- Aviation Industry Analysis and Trends
- Smart Grid Energy Management
- Energy Efficiency and Management
- Manufacturing Process and Optimization
- Heat Transfer Mechanisms
- Sustainable Supply Chain Management
- Climate Change and Geoengineering
- Maritime Ports and Logistics
University of Michigan
2021-2025
Carnegie Mellon University
2011-2023
Michigan United
2021-2023
University of California, Davis
2022
Shri BM Patil Medical College
2017-2018
BLDE (Deemed to be University)
2018
Road freight transportation accounts for around 7% of total world energy-related carbon dioxide emissions. With the appropriate incentives, energy savings and emissions reductions can be achieved by shifting to rail or water modes, both which are far more efficient than road. We briefly introduce five general strategies decarbonizing transportation, then focus on literature data relevant estimating global decarbonization potential through modal shift. compare activity (in tonne-km) mode...
The U.S. federal government has established goals of electrifying 50% new light-duty vehicle sales by 2030 and reducing economy-wide greenhouse gas emissions 50-52% 2030, from 2005 levels. Here we evaluate the electrification goal in context goal. We use a fleet model life cycle to project sales, stock, emissions. To account for state-level variability electric adoption grid factors, apply models each state. By are reduced approximately 25% (from 2005) fleet, primarily due turnover...
When in port, ships burn marine diesel on-board generators to produce electricity and are significant contributors poor local regional air quality. Supplying with grid can reduce these emissions. We use two integrated assessment models quantify the benefits of reducing emissions NOX, SO2, PM2.5, CO2 that would occur if shore power were used. Using historical vessel call data, we identify combinations vessels berths at U.S. ports could be switched yield largest gains for society. Our results...
Abstract Electrification can reduce the greenhouse gas (GHG) emissions of light-duty vehicles. Previous studies have focused on comparing battery electric vehicle (BEV) sedans to their conventional internal combustion engine (ICEV) or hybrid (HEV) counterparts. We extend analysis different classes by conducting a cradle-to-grave life cycle GHG assessment model year 2020 ICEV, HEV, and BEV sedans, sports utility vehicles (SUVs), pickup trucks in United States. show that proportional benefit...
The use of transportation network companies (TNCs), such as Uber and Lyft, is widespread in many US cities, including those with good transit. However, transit produces smaller externalities relative to private vehicles cheaper but can increase travel time. Here we compare the benefits costs real TNC trips Chicago a counterfactual which they are performed by We assess total fare monetized value time, well externalities. find that median breakeven time at rider would be indifferent between...
Abstract Residential and commercial buildings account for 75% of electricity 40% the total energy consumption in United States, costing over $400 billion annually. Electrification efficiency retrofits offer a viable decarbonization pathway, especially since half U.S. homes were built before modern building codes. These older are often occupied by low-to-moderate-income (LMI) families. Equitable electrification provides unique opportunity to considerably reduce emissions communities where...
Abstract We estimate the lifetime magnitude and distribution of private public benefits costs currently installed distributed solar PV systems in United States. Using data for recently-installed systems, we balance associated with installing a non-utility system today. also study geographical various subsidies that are made available to owners rooftop compare it distributions population income. find that, after accounting federal local rebates assuming discount rate 7%, new installations...
Abstract To explore electrification as a climate change mitigation strategy, we study US residential heat pump adoption, given the current housing stock. Our research asks (a) how costs and benefits of adoption evolve with increased penetration, (b) what rate is economic today’s stock, electric grid, energy prices, technology, (c) effect changing policies, innovations, technology improvements might have on adoption. We answer these questions by simulating consumption 400 representative...
Additive manufacturing (AM) has tremendous potential to produce high-power-density heat exchangers. However, AM-heat exchangers at a competitive cost impedes their commercial adoption. In this paper, novel design of an AM counter flow pin–fin compact recuperator, and its costs when using laser powder bed fusion method, are presented. The which can operate high temperature 800 °C, fluid pressure (250 bar) on the cold side withstand differential 170 bars across streams, as seen in...
Decarbonization may require the efficient electrification of applications, like natural gas furnaces for space heating, that currently involve burning fossil fuels. The environmental consequences such a fuel switch depend on location and time. Here we show that, in most parts U.S., from to electric heat pumps would raise household heating bills increase damages carbon dioxide (CO2) other pollutants. For single-family homes 658 883 locations analyze, shift annual hourly peak demand...
A changing generation mix and growing demand for carbon-free electricity will almost certainly require dramatic changes in the infrastructure topology of system. Rather than build new lines, one way to minimize social opposition regulatory obstacles is increase capacity existing transmission corridors. In addition upgrading high-voltage alternating current (HVAC) we identify a number situations which conversion from HVAC direct (HVDC) least-cost strategy corridor. If restricted right-of-way...
Abstract Automated long haul trucking is being developed for commercial deployment in the United States. One possible mode of this technology a “transfer-hub” model where operationally less complex highway driving automated, while human drivers drive more urban segment route. We study net impacts on tractor-trailer operator-hours from deployment. Using data 2017 Commodity Flow Survey, we gather information shipments and required to fulfill those shipments. find that up 94% may be impacted as...
The design and techno-economic performance of a compact additively manufactured (AM) molten salt (MS)-to-supercritical carbon di-oxide (sCO2) primary heat exchanger (PHE) for solar thermal application is described. PHE consists sCO2 flow through an array microscale pin fins while the MS flows mm-scale rectangular channels. Constraints imposed by AM using laser powder bed fusion method are considered in design. Structural fluid simulations performed to arrive at viable core headers. A...
Abstract Electrification of delivery vehicles will play an important role in decarbonizing the transportation sector. As electricity‐generating technologies vary regionally and temporally, where electric are deployed when they charged determine greenhouse gas (GHG) emissions cost consequences vehicle electrification. We couple a charging model with dataset that provides hourly projections marginal electricity factors across 134 balancing areas United States. calculate over 10‐year service...
Transportation network companies (TNCs), such as Uber and Lyft, have pledged to fully electrify their ridesourcing vehicle fleets by 2030 in the United States. In this paper, we introduce AgentX, a novel agent-based model built Julia for simulating services with high geospatial temporal resolution. We then instantiate estimate life cycle air pollution, greenhouse gas, traffic externality benefits costs of serving rides based on Chicago TNC trip data from 2019 2022 electric vehicles. that...