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Displaying 1 - 25 of 26

Screening for Next Generation Refrigerants

August 26, 2019
Author(s)
Piotr A. Domanski
The availability of refrigerants having low global warming potential (GWP) varies between different applications as it is demonstrated by four system types. Unitary air conditioning (high-pressure application) presents a particularly difficult challenge

Optimization of Air-to-Refrigerant Evaporator with Low-GWP Refrigerants

June 23, 2019
Author(s)
Piotr A. Domanski
An analytical evaluation of the performance of low-GWP refrigerants in a finned-tube evaporator used for residential cooling applications will be presented. The study employed an evolutionary-computation optimization module to examine the effect of a

CYCLE_D: NIST Vapor Compression Cycle Design Program, Version 6.0; User's Guide

November 19, 2018
Author(s)
Piotr A. Domanski, J S. Brown, Eric W. Lemmon
The CYCLE_D package simulates vapor compression refrigeration cycles that use pure refrigerants or blends of refrigerants. The model can simulate a basic subcritical or transcritical refrigeration cycle, both with or without a liquid-line/suction-line heat

Programmers Guide to the BACnet Communications DLL

October 1, 2018
Author(s)
Michael A. Galler
The BACnet standard defines a communication protocol for information exchange between components of a distributed building automation and control system. The BACnet communications dynamically linked library enables researchers to implement selected BACnet

Low-GWP Alternative Refrigerant Blends for HFC-134a

September 7, 2018
Author(s)
Piotr A. Domanski, Mark O. McLinden, Ian H. Bell, Gregory T. Linteris
The goal of this study was to identify non-flammable, non-toxic, low global-warming-potential (GWP) replacements for HFC-134a in an air-conditioning system that would maintain the energy efficiency and capacity. A prior exhaustive work demonstrated that

Review of Refrigerants Evolution

June 20, 2018
Author(s)
Piotr A. Domanski, Mark O. McLinden, Andrei F. Kazakov, J S. Brown, Riccardo Brignoli, Jaehyeok Heo, Janusz Wojtusiak
The presentation discusses the application of refrigerants from the beginnings of ‘artificial cold’ in the era of industrial revolution to the currently used fluids, and the refrigerant options in response to environmental concerns. The outlook for new

Flammability: A Continuum Vs. Discrete Boundary

January 24, 2018
Author(s)
Gregory T. Linteris
The goals of this talk are: 1.) Understand that flammability behavior is device/configuration dependent, and 2.) Understand the features that influence the flammability behavior of a fuel-air mixture.

LOW-GWP REFRIGERANTS FOR MEDIUM AND HIGH-PRESSURE APPLICATIONS

September 19, 2017
Author(s)
Piotr A. Domanski, Riccardo Brignoli, S J. Brown, Andrei F. Kazakov, Mark O. McLinden
The merits of an alternative refrigerant are established based on many attributes including environmental acceptance, chemical stability in the refrigeration system, low toxicity, flammability, efficiency and volumetric capacity. In an earlier work, these
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