A5068490822- Integrated Energy Systems Optimization
- Building Energy and Comfort Optimization
- Sustainability and Ecological Systems Analysis
- Modeling and Simulation Systems
- Water Systems and Optimization
- Infrastructure Resilience and Vulnerability Analysis
- Geothermal Energy Systems and Applications
- Probabilistic and Robust Engineering Design
- Plant and Biological Electrophysiology Studies
- Spacecraft and Cryogenic Technologies
- Adsorption and Cooling Systems
- Infection Control and Ventilation
- Climate Change Policy and Economics
- CO2 Sequestration and Geologic Interactions
- Wind and Air Flow Studies
- Opinion Dynamics and Social Influence
- Environmental Impact and Sustainability
- Advanced Thermodynamics and Statistical Mechanics
- Advanced Power Generation Technologies
- Water-Energy-Food Nexus Studies
- Global Energy and Sustainability Research
- Refrigeration and Air Conditioning Technologies
- Smart Grid Energy Management
- Global Energy Security and Policy
- Coal and Coke Industries Research
University of Colorado Boulder
2021-2023
Pennsylvania State University
2023
CEPT University
2020-2022
Delft University of Technology
2022
University of Colorado System
2021
Direct evaporative coolers (DECs) are a low-energy cooling alternative to conventional air conditioning in hot-dry climates. The key component of DEC is the pad, which evaporatively cools passing through it. While detailed numerical models heat and mass transfer have been proposed for these require many input parameters that not readily accessible. Alternatively, simplified lack accuracy confined common types pad. To address limitations, we developed validated physics-based model, only needs...
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Through biomimicry, ecological network analysis (ENA) allows one to quantify whole-system properties of complex systems. While ENA has yet be explored dynamically for engineering applications, methods such as this may support the design and operation highly-integrated The major challenge is how apply dynamic system, buildings. To end, we first formulate on an exergy-basis in comprehensive mathematical models implement Modelica. Then, validate our approach with a commonly referenced natural...
This paper presents four design charts (DC) to work as a simplified, easy-to-use and cost-effective tool assist architects building designers on sizing openings deliver natural ventilation (NV) for cooling. The DC are derived from analytical techniques NV systems based either buoyancy-driven or wind-driven flow. application of the is demonstrated size bedroom in an apartment located three Indian cities two opening scenarios: 'business usual' (A); 'necessary size' (B) desired rates cooling...
An efficient smart and connected community (SCC) depends on the interconnectivity of essential infrastructure systems. However, current modeling tools are unable to determine which interconnections most important include, as system dynamics become more complex with high-order effects. Bridging this gap, we propose a comprehensive framework that incorporates multi-layers, multi-blocks, multi-agents model interdependent Interconnections span cyber, physical, logical aspects, including human...
Although buildings are transitioning towards complex, dynamic, and interconnected systems, traditional engineering metrics that dominate today don't capture several important whole-network properties. To address this, we adopt ecological network analysis (ENA), which has numerous successes for natural ecosystems socio-technical systems but yet to be applied buildings. After translating ENA into comprehensive mathematical models applications, demonstrate the novel method with building...
Comparison of two approaches for modeling
This paper introduces new models of the Modelica Buildings Library for thermo-fluid simulation steam-based district heating systems in support design, operation, and energy analysis. Steam represents a prominent indispensable form energy, providing 97% upwards 84% some manufacturing industries United States. Our primary contribution is to enable modeling complete steam districts that was not previously possible at large scales industry practices. We implemented open-source using standard,...
In U.S. district heating (DH) systems, steam is the most common heat transport medium. Simulation of large DH systems requires a computationally e cient and accurate model; however, commonly adopted IF97 water model not fast enough for district-scale simulations, its discontinuous thermodynamic property functions have shown to cause simulation problems sometimes failure. To address these issues, this work introduces new medium applications. Further, we avoid numerical challenges at phase...
In U.S. district heating (DH) systems, steam is the most common heat transport medium. Simulation of large DH systems requires a computationally efficient and accurate model; however, commonly adopted IF97 water model not fast enough for district-scale simulations, its discontinuous thermodynamic property functions have shown to cause simulation problems sometimes failure. To address these issues, this work introduces new medium applications. Further, we avoid numerical challenges at phase...