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Search Publications by: Piotr A. Domanski (Assoc)

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Displaying 76 - 100 of 182

CYCLE D Version 4.0: Theoretical Vapor Compression Cycle Design Program

June 23, 2009
Author(s)
J S. Brown, Piotr A. Domanski
This paper presents Version 4.0 of the CYCLE_D: NIST Vapor Compression Cycle Design Program. The model can simulate a basic subcritical or transcritical refrigeration cycle, both with or without a liquidline/ suction-line heat exchanger. In addition, the

CYCLE_D: NIST Vapor Compression Cycle Design Program Version 4.0 Users' Guide

June 23, 2009
Author(s)
J S. Brown, Piotr A. Domanski, Eric Lemmon
The CYCLE_D package simulates vapor compression refrigeration cycles that use pure refrigerants or mixtures of refrigerants. The model can simulate a basic subcritical or transcritical refrigeration cycle, both with or without a liquid-line/suction-line

CYCLE_D VERSION 4.0: Theoretical Vapor Compression Cycle Design Program

April 9, 2009
Author(s)
J S. Brown, Piotr A. Domanski, Eric Lemmon
This paper presents Version 4.0 of the CYCLE_D: NIST Vapor Compression Cycle Design Program. The model can simulate a basic subcritical or transcritical refrigeration cycle, both with or without a liquid-line/suction-line heat exchanger. In addition, the

Cooling Mode Fault Detection And Diagnosis Method For A Residential Heat Pump

October 17, 2008
Author(s)
Minsung Kim, Seok H. Yoon, William V. Payne, Piotr A. Domanski
Performance characteristics of a R410A residential unitary split heat pump equipped with a thermostatic expansion valve (TXV) were investigated in the cooling mode under no-fault and faulty conditions. An automated method of steady-state detection was

R-22 Replacement Status (in Russian)

June 25, 2008
Author(s)
J M. Calm, Piotr A. Domanski
Since its initial recognition in 1928 and commercialization in 1936, R-22 has been applied in systems ranging from the smallest window air conditioners to the largest chillers and heat pumps, including those for district cooling and heating. Individual

Condensadores de Tubo con Aletas Optimizacion Mediante Sistema Inteligente

February 1, 2008
Author(s)
Piotr A. Domanski, David A. Yashar
The refrigerant circuitry influences a heat exchanger's attainable capacity. Typically, a design engineer specifies a circuitry and validates it using a simulation model or laboratory test. The circuitry optimization process can be improved by using

Application of an Evolution Program for Refirgerant Circuitry Optimization.

December 7, 2007
Author(s)
Piotr A. Domanski, David A. Yashar
Increased concerns about climate change have emphasized the importance of air-conditioning and refrigeration systems with a high coefficient of performance (COP). The effectiveness of heat exchangers significantly influences the vapor-compression system's

Application of an Evolution Program for Refrigerant Circuitry Optimization

December 7, 2007
Author(s)
Piotr A. Domanski, David A. Yashar
Increased concerns about climate change have emphasized the importance of air-conditioning and refrigeration systems with a high coefficient of performance (COP). The effectiveness of heat exchangers significantly influences the vapor-compression system s

A Microfabricated Flow Controller for Refrigerant Expansion

October 1, 2007
Author(s)
David A. Yashar, Piotr A. Domanski, Don DeVoe
A flow controller for refrigerant expansion is reported. Devices are fabricated using a micromolding technique developed for thick nickel electroplating. The device consists of a short tube restrictor with an integrated normally-open valve which, when

Longitudinal Heat Conduction in Finned-Tube Evaporators

August 21, 2007
Author(s)
Piotr A. Domanski, William V. Payne, J M. Choi
The paper evaluates performance of finned-tube evaporators at different refrigerant exit superheats to assess the impact of longitudinal heat conduction on capacity.

Optimization of Finned-Tube Condensers Using an Intelligent System

May 1, 2007
Author(s)
Piotr A. Domanski, David A. Yashar
The refrigerant circuitry influences a heat exchanger s attainable capacity. Typically, a design engineer specifies a circuitry and validates it using a simulation model or laboratory test. The circuitry optimization process can be improved by using

MEMS Sensors for HVAC&R: Small, Fast, Cheap (in Polish)

August 1, 2006
Author(s)
David A. Yashar, Piotr A. Domanski
Microelectronic mechanical systems (MEMS) have revolutionized the market for sensors by providing small, fast-responding measurement devices at low cost. They have been widely accepted in several common products. As an example, today's automobile uses