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Search Publications by: Piotr A. Domanski (Assoc)

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Displaying 151 - 175 of 182

Finned-Tube Evaporator Model With a Visual Interface

September 19, 1999
Author(s)
Piotr A. Domanski
This paper presents a finned-tube evaporator model and its utility when equipped with a window-based interface. The modeling scheme is tube-by-tube and allows for specification of complex refrigerant circuits, modeling refrigerant distribution between

Evolution of Refrigerant Application

May 1, 1999
Author(s)
Piotr A. Domanski
The paper reviews the development of chlorofluorocarbon refrigerants, the implemented replacements of ozone-depleting fluids, other considered alternatives, and the prospect for next-generation refrigerants in response to climate change concerns

Refrigerants for the 21st Century / ASHRAE/NIST Refrigerants Conference

September 1, 1998
Author(s)
Piotr A. Domanski
The goal of the 1997 ASHRAE/NIST Refrigerants Conference was to review available air-conditioning and refrigeration options in response to ozone depletion, global warming, and technology advances. The two-day program consisted of 16 invited comprehensive

A Study of a Water-to-Water Heat Pump Using Flammable Refrigerants

June 1, 1998
Author(s)
William V. Payne, Piotr A. Domanski, J Muller
This investigation compared the performance of R22 to the performance of R290 and that of flammable zeotropic mixtures, R32/290 and R32/152a. The tests were conducted in a test apparatus specially designed to simulate a residential water-to-water heat pump

Ternary Zeotropic Mixture With CO2 Component for R-22 Heat Pump Application

August 30, 1997
Author(s)
K Maczeck, J Muller, K Wojtas, Piotr A. Domanski
The objective of this research project was to demonstrate a successful operation of a high efficiency heat pump employing a zeotropic mixture with a zero ozone-depletion and a small greenhouse warming potential (ODP and GWP, respectively). The project

Limiting Throttling Losses by Intracycle Evaporative Cooling

October 20, 1996
Author(s)
B. S. Kim, Piotr A. Domanski
The temperature glide of zeotropic mixtures during phase change provides the opportunity to limit throttling losses of the refrigerant leaving the condenser. The difference between the intracycle evaporative cooling and the liquid-line/suction-line heat

Intracycle Evaporative Cooling in a Vapor Compression Cycle (NISTIR 5873)

September 1, 1996
Author(s)
B. S. Kim, Piotr A. Domanski
The temperature glide of zeotropic mixtures during phase change provides the opportunity to limit throttling losses of the refrigeration cycle by intracycle evaporative cooling of the refrigerant leaving the condenser. Intracycle evaporative cooling is

Minimizing Throttline Losses in the Refrigeration Cycle

August 1, 1995
Author(s)
Piotr A. Domanski
Most alternative non-CFC refrigerants have a large molecular structure and large heat capacity, which influence the slope of saturated liquid line and result in substantial throttling losses in a basic reversed Rankine cycle. These losses degrade the cycle

Evaluation of Suction Line-Liquid Line Heat Exchange in the Refrigeration Cycle

January 1, 1994
Author(s)
Piotr A. Domanski, David Didion, J. P. Doyle
The paper presents a theoretical evaluation of the performance effects resulting from the installation of a liquid-line/suction-line heat exchanger (LLSL-HX). It examines cycle parameters and refrigerant thermodynamic properties that determine whether the