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This paper presents local convective boiling measurements in a micro-fin tube for three low global warming potential (GWP) refrigerants: R448A, R449A, and R452B . An existing correlation was modified to predict multi-component mixtures, which predicted 98
The Facility Smart Grid Information Model (FSGIM) standard is one part of a larger ecosystem of standards that support the development and implementation of a smart electric grid. The FSGIM uses Unified Modeling Language to define key concepts that must
Comprehensive and generalized derivations have been presented for the treatment of the residual part of the Helmholtz energy which arises from the transformation of several common cubic equations of state (Soave-Redlich-Kwong, Peng-Robinson and others of a
Shokouh Pourarian, Jin Wen, Anthony J. Kearsley, Amanda Pertzborn
Efficiently, robustly and accurately solving large sets of structured, non-linear algebraic and differential equations is one of the most computationally expensive steps in the dynamic simulation of building energy systems. Here, the efficiency, robustness
Numerous mathematical tools intended to optimize rate constants employed in detailed kinetic models and make them consistent with experimental data have been reported in the literature. A typical methodology begins with the assignment of uncertainties in
Edward Griffor, Agaram Venkatesh, Frank Barickman, Felix Felix Fahrenkrog
Ubiquitous, commercial deployment of automated road vehicles is desirable in order to realize their potential benefits such as crash avoidance, congestion mitigation, reduced environment impact, reduced driver stress, and increased driver productivity. A
An Zou, Ashish Chanana, Amit Agrawal, Peter C. Wayner, Jr., Shalabh C. Maroo
Boiling, a dynamic and multiscale process, has been studied for over five decades; however, a comprehensive understanding of the process is still lacking. The bubble ebullition cycle, which involves nucleation, growth and departure, happens over a very
In the effort to achieve low-energy operation of residential buildings, advanced water heating technologies are vitally important. This paper explores the year-long performance of a 189 L (50 gal) heat pump water heater (HPWH) serving as an auxiliary unit
A 2715 ft2 (252 m2), two story, residential home of the style typical of the Gaithersburg, Maryland area was constructed in 2012 to illustrate technologies employed to produce a net-zero energy (NZE) home (or ZEH). It functions as a laboratory to support
Aaron N. Johnson, Rodney A. Bryant, Tamae M. Wong, James R. Whetstone, Eric Harman, Woong Kang, Keith A. Gillis, Hsin-Hung Lee, Iosif I. Shinder, Liang Zhang
On April 20-21, 2015, NIST hosted a workshop that, through measurement science, enabled the owners of stationary sources (primarily the electric power industry) and their regulatory agencies (federal and state) to better characterize greenhouse gas (GHG)