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You searched on: Author: piotr domanski

Displaying records 21 to 30 of 141 records.
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21. Practical Aspects of Applying Evolutionary Algorithms for Optimizing Refrigerant Circuitry in Heat Exchangers
Published: 8/21/2011
Authors: Piotr A Domanski, David A Yashar, Sunil Lee, Janusz Wojtusiak
Abstract: A public domain finned-tube heat exchanger simulation program, EVAP-COND ver. 3.0, has been equipped with an evolutionary algorithm-based module, called ISHED ‹ Intelligent System for Heat Exchanger Design, which facilitates optimization of refrigera ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908309

22. IMPACT OF CLASSICAL ASSUMPTIONS IN MODELLING A MICROCHANNEL GAS COOLER
Published: 7/5/2011
Authors: Santiago Martinez-Ballester, Jose M. Corberan, Jose Gonzalvez-Macia, Piotr A Domanski
Abstract: Most of the current air-to-refrigerant heat exchanger models use the classic ε-NTU approach. These models do not account for 2D longitudinal heat conduction in the tube and the longitudinal heat conduction in the fin. These models, also do not ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907650

23. IEA HPP Annex 36: Quality Installation / Quality Maintenance Sensitivity Analysis
Published: 6/27/2011
Authors: Glenn Hourahan, Piotr A Domanski, Van Baxter
Abstract: The paper summarizes the goals and planned activities to be undertaken by the participants in Annex 36. Some background information and status of Annex work specific to each participant is provided as well.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908110

24. Characterization of Approach Air Distribution for a Finned-Tube Heat Exchanger
Published: 2/18/2011
Authors: David A Yashar, Piotr A Domanski, Hong H. Cho
Abstract: The distribution of air flow approaching a finned-tube heat exchanger is one of the predominant factors influencing the heat exchanger‰s performance. This paper describes a method for measuring and predicting the inlet air flow distribution using Par ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903642

25. Residential Heat Pump Heating Performance with Single Faults Imposed
Published: 10/29/2010
Authors: William V Payne, Piotr A Domanski, Seok Ho Yoon
Abstract: A heat pump equipped with a thermostatic expansion valve (TXV) was tested in environmental chambers during steady-state no-fault and imposed-fault operation. The studied system was an R410A split residential heat pump with an 8.8 kW nominal cooling ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906002

26. ANALYSIS OF SEGMENT-BY-SEGMENT ¿ - NTU MODELLING OF A MINICHANNEL CO2 GAS COOLER
Published: 7/12/2010
Authors: Santiago M. Ballester, Jose M. Corberan, Jose Gonzalvez-Macia, Piotr A Domanski
Abstract: Most of the current air-to-refrigerant heat exchanger models use the classic ε-NTU approach. These models do not account for longitudinal conduction neither in the fin nor in the tube, transverse conduction in the tube, and for the heat conducti ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905568

27. Air Flow Distribution through an A-Shaped Evaporator under Dry and Wet Coil Conditions
Published: 7/11/2010
Authors: David A Yashar, Piotr A Domanski
Abstract: This paper presents a study of the air flow distribution through a residential air-conditioning heat exchanger. The test subject was a finned-tube, A-shaped coil outfitted with a condensation collection pan required for horizontal installation. We ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905426

28. Residential Heat Pump Heating Performance with Single Faults Imposed
Published: 7/11/2010
Authors: Seok Ho Yoon, William V Payne, Piotr A Domanski
Abstract: A heat pump equipped with a thermostatic expansion valve (TXV) was tested in environmental chambers during steady-state no-fault and imposed-fault operation. The studied system was an R410A split residential heat pump with an 8.8 kW nominal cooling ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905484

29. Evolutionary Computation Approach to Heat Exchanger Design
Published: 6/26/2010
Authors: David A Yashar, Janusz Wojusiak, Kenneth Kaufman, Piotr A Domanski
Abstract: The efficiency of a vapor compression system is strongly influenced by the performance of the finned-tube heat exchangers it employs. Heat exchanger performance is strongly influenced by the refrigerant circuitry, i.e., the connection sequence of th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904661

30. Evaporator Optimization for Non-Uniform Air Distribution
Published: 6/13/2010
Authors: Piotr A Domanski, David A Yashar, Sunil Lee
Abstract: This study demonstrates the performance improvements that can be achieved by accounting for the in-situ air flow distribution during the design phase of a heat exchanger. The heat exchanger used in this study was a two-slab, A-shaped finned-tube eva ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904721



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