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Author: piotr domanski
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1. A Comparison of Rating Water-Source Heat Pumps Using ARI Standard 320 and ISO Standard 13256-1
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6803
Published: 9/1/2001
Authors: William V Payne, Piotr A Domanski
Abstract: This investigation compares the ARI 320 (1998) and the ISO 13256-1 (1998) heating and cooling standards for water-source heat pumps to determine the difference in capacity and efficiency for a given heat pump tested with these standards. Multiple te ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860856

2. A Comparison of an R22 and an R410A Air Conditioner Operating at High Ambient Temperatures
Published: 7/1/2002
Authors: William V Payne, Piotr A Domanski
Abstract: R22 and R410A split air-conditioning systems were tested and compared as outdoor temperature ranged form 27.8 C (82.0 F) to 54.4 F (130 F). The R410A system tests were extended t 68.3 C (155.0 F) ambient temperature with a customized compresso ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860880

3. A Curve-Based Mixed System Rating Method
Series: Journal of Research (NIST JRES)
Report Number: 7225
Published: 5/5/2005
Authors: Piotr A Domanski, William V Payne
Abstract: The curve-based method was evaluated based on performance predictions for nine mixed systems, which were also tested by an independent testing laboratory. Capacity predictions were within 5% of the tested values for six of nine mixed systems, and f ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860965

4. A Curve-Based Mixed System Rating Method for Unitary Air Conditioners
Series: Journal of Research (NIST JRES)
Report Number: 7225
Published: 5/2/2005
Authors: William V Payne, Piotr A Domanski
Abstract: The curve-based method was evaluated based on performance predictions for nine mixed systems, which were also tested by an independent testing laboratory. Capacity predictions were within 5% of the tested values for six of nine mixed systems, and f ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860973

5. A Dual Mode Evolutionary Algorithm Approach for Designing Optimized Finned-Tube Heat Exchangers
Published: 9/27/2012
Authors: David A Yashar, Piotr A Domanski, Janusz Wojusiak, Kenneth Kaufman
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=907663

6. A Generalized Pressure Drop Correlation for Evaporation of Alternative Refrigerants in Micro-Fin and Smooth Tubes
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6333
Published: 10/1/2001
Authors: J Y Choi, Mark A Kedzierski, Piotr A Domanski
Abstract: This paper presents a pressure drop correlation for evaporation and condensation in smooth and micro-fin tubes. The correlation was developed from a data base consisting of the following pure and mixed refrigerants: R125, R134a, R32, R410A (R32/R125 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860792

7. A Microfabricated Flow Controller for Refrigerant Expansion
Published: 10/1/2007
Authors: David A Yashar, Piotr A Domanski, Don DeVoe
Abstract: 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, w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861029

8. A Study of In-Tube Evaporation Heat Transfer of Carbon Dioxide
Published: 8/17/2003
Authors: N N Sawant, M Kim, William V Payne, Piotr A Domanski, Y W Hwang
Abstract: The evaporative heat transfer characteristics of carbon dioxide (CO^d2^) were measured in a fluid-heated, 8.0 mm ID smooth stainless steel tube. The test apparatus was a concentric tube heat exchanger heated by water in the annulus with CO^d2^ in th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860915

9. A Study of a Water-To-Water Heat Pump Using Hydrocarbon and Hydrofluorocarbon Zeotropic Mixtures
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6330
Published: 5/1/1999
Authors: William V Payne, Piotr A Domanski, J Muller
Abstract: This investigation compared the performance of R22 to the performance of propane (R290) and zeotropic mixtures of HFC's and hydrocarbons in a water-to-water heat pump. Baseline testing began with R22 and proceeded to R290, R32/290, R32/152a, and R290 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860790

10. A Study of a Water-to-Water Heat Pump Using Flammable Refrigerants
Published: 6/1/1998
Authors: William V Payne, Piotr A Domanski, J Muller
Abstract: 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 hea ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860762



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