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Author: piotr domanski

Displaying records 91 to 100 of 131 records.
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91. 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

92. Evaluation of Carbon Dioxide as R-22 Substitute for Residential Air-Conditioning
Published: 6/1/2002
Authors: J S Brown, Y Kim, Piotr A Domanski
Abstract: This paper compares performance of CO2 and R22 in residential air conditioning applications using semi-theoretical vapor compression and transcritical cycle models. The simulated R22 system had a conventional component configuration, while the CO2 s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860862

93. Rating Water-Source Heat Pumps Using ARI Standard 320 and ISO Standard 13256-1.
Published: 3/25/2002
Authors: William V Payne, Piotr A Domanski
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101208

94. 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

95. Generalized Pressure Drop Correlation for Evaporation and Condensation in Smooth and Micro-Fin Tubes
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=860849

96. 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

97. Comparitive Analysis of an Automotive Air Conditioning Systems Operating with CO^d2^ and R134a
Published: 1/1/2001
Authors: J S Brown, S F. Yana Motta, Piotr A Domanski
Abstract: This paper evaluates performance merits of CO^d2^ and R134a automotive air conditioning systems using semi-theoretical cycle models. The R134a system had a current-production configuration which consisted of a compressor, condenser, expansion device ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860836

98. Impact of Elevated Ambient Temperatures on Capacity and Energy Input to a Vapor Compression System -- Literature Review
Published: 8/1/2000
Authors: S F. Yana Motta, Piotr A Domanski
Abstract: Operation of a system at elevated ambient temperatures inherently results in a lower coefficient of performance (COP). This conclusion comes directly from examining the Carnot cycle. The COP relation, COP=T^devap/^(T^dcond-^T^devap^) indicates that ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860825

99. Performance of R-22 And Its Alternatives Working At High Outdoor Temperatures
Published: 7/1/2000
Authors: S F. Yana Motta, Piotr A Domanski
Abstract: This paper examines the performance of R-22 and its possible replacements in an air-cooled air conditioner. The study focuses on the effect ofelevated outdoor temperatures on system capacity and Coefficient of Performance (COP). The refrigerants cons ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860817

100. Semi-Theoretical Simulation Model for a Transcritical Carbon Dioxide Mobile A/C System
Published: 3/1/2000
Authors: J S Brown, Piotr A Domanski
Abstract: This paper describes a semi-theoretical simulation model, CYCLE11_CO2, for a transcritical carbon dioxide vapor-compression refrigeration cycle. CYCLE_11CO2 is based on an earlier simulation model, CYCLE11-UA, developed at the National Institute of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860806



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