R1234yf and R1234ze(E) as low-GWP refrigerants for residential heat pump water heaters; Le R1234yf et le R1234ze(E) comme frigorigènes à faible GWP pour des chauffe-eau domestiques à pompe à chaleur

Nawaz, Kashif; Shen, Bo; Elatar, Ahmed; Baxter, Van; Abdelaziz, Omar

doi:10.1016/j.ijrefrig.2017.06.031

Title: R1234yf and R1234ze(E) as low-GWP refrigerants for residential heat pump water heaters; Le R1234yf et le R1234ze(E) comme frigorigènes à faible GWP pour des chauffe-eau domestiques à pompe à chaleur

Abstract

Owing to the growing concerns about the relatively high global warming potential (GWP) of current refrigerants, a serious effort is currently in progress to find lower-GWP substitutes. The hydrofluoroolefin (HFO)-based refrigerants R1234yf and R1234ze(E) are being considered for use in multiple heating, ventilation, air conditioning, and refrigeration applications because of their very low GWP. A study was conducted to model a residential heat pump water heater using these HFOs. A system model was calibrated using experimental data and the calibrated model was used to evaluate the potential of HFOs to replace R134a. A series of parametric analyses were used to investigate the impacts of condenser wrap pattern, condenser tube size, evaporator size, and heat loss factor from the storage tank. It has been shown that both R1234yf and R1234ze(E) can be substituted for R134a with comparable performance and no substantial modifications to the original system. Finally, this study presents a detailed feasibility analysis for successful replacement of high-GWP refrigerants with low-GWP refrigerants with acceptable performance.

Authors:

^[1]; Shen, Bo ^[1]; Elatar, Ahmed ^[1]; Baxter, Van ^[1]; Abdelaziz, Omar ^[1]

Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Publication Date:: Tue Jul 04 00:00:00 EDT 2017

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office

OSTI Identifier:: 1376470

Alternate Identifier(s):: OSTI ID: 1550417

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: International Journal of Refrigeration

Additional Journal Information:: Journal Volume: 82; Journal ID: ISSN 0140-7007

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; heat pump; water heater; hydrofluoroolefin; alternative refrigerants

Citation Formats


                    Nawaz, Kashif, Shen, Bo, Elatar, Ahmed, Baxter, Van, and Abdelaziz, Omar. R1234yf and R1234ze(E) as low-GWP refrigerants for residential heat pump water heaters; Le R1234yf et le R1234ze(E) comme frigorigènes à faible GWP pour des chauffe-eau domestiques à pompe à chaleur.  United States: N. p., 2017. 
Web.  doi:10.1016/j.ijrefrig.2017.06.031.

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                    Nawaz, Kashif, Shen, Bo, Elatar, Ahmed, Baxter, Van, & Abdelaziz, Omar. R1234yf and R1234ze(E) as low-GWP refrigerants for residential heat pump water heaters; Le R1234yf et le R1234ze(E) comme frigorigènes à faible GWP pour des chauffe-eau domestiques à pompe à chaleur.  United States.  https://doi.org/10.1016/j.ijrefrig.2017.06.031

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                    Nawaz, Kashif, Shen, Bo, Elatar, Ahmed, Baxter, Van, and Abdelaziz, Omar. Tue .  
"R1234yf and R1234ze(E) as low-GWP refrigerants for residential heat pump water heaters; Le R1234yf et le R1234ze(E) comme frigorigènes à faible GWP pour des chauffe-eau domestiques à pompe à chaleur".  United States.  https://doi.org/10.1016/j.ijrefrig.2017.06.031.  https://www.osti.gov/servlets/purl/1376470.

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@article{osti_1376470,

  title        = {R1234yf and R1234ze(E) as low-GWP refrigerants for residential heat pump water heaters; Le R1234yf et le R1234ze(E) comme frigorigènes à faible GWP pour des chauffe-eau domestiques à pompe à chaleur},

  author       = {Nawaz, Kashif and Shen, Bo and Elatar, Ahmed and Baxter, Van and Abdelaziz, Omar},

  abstractNote = {Owing to the growing concerns about the relatively high global warming potential (GWP) of current refrigerants, a serious effort is currently in progress to find lower-GWP substitutes. The hydrofluoroolefin (HFO)-based refrigerants R1234yf and R1234ze(E) are being considered for use in multiple heating, ventilation, air conditioning, and refrigeration applications because of their very low GWP. A study was conducted to model a residential heat pump water heater using these HFOs. A system model was calibrated using experimental data and the calibrated model was used to evaluate the potential of HFOs to replace R134a. A series of parametric analyses were used to investigate the impacts of condenser wrap pattern, condenser tube size, evaporator size, and heat loss factor from the storage tank. It has been shown that both R1234yf and R1234ze(E) can be substituted for R134a with comparable performance and no substantial modifications to the original system. Finally, this study presents a detailed feasibility analysis for successful replacement of high-GWP refrigerants with low-GWP refrigerants with acceptable performance.},

  doi          = {10.1016/j.ijrefrig.2017.06.031},

  journal      = {International Journal of Refrigeration},

  number       = ,

  volume       = 82,

  place        = {United States},

  year         = {Tue Jul 04 00:00:00 EDT 2017},

  month        = {Tue Jul 04 00:00:00 EDT 2017}

}

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Title: R1234yf and R1234ze(E) as low-GWP refrigerants for residential heat pump water heaters; Le R1234yf et le R1234ze(E) comme frigorigènes à faible GWP pour des chauffe-eau domestiques à pompe à chaleur

Abstract

Citation Formats

A validated model for mixing and buoyancy in stratified hot water storage tanks for use in building energy simulations journal, June 2016

Thermodynamic properties of eight fluorinated olefins journal, March 2010

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Correlating equations for laminar and turbulent free convection from a horizontal cylinder journal, September 1975

Energy and exergy analysis of a ground-coupled heat pump system with two horizontal ground heat exchangers journal, October 2007

Modelling and experimental performance analysis of solar-assisted ground source heat pump system journal, September 2015

Development of a Hot Water Tank Simulation Program with Improved Prediction of Thermal Stratification in the Tank journal, May 2015

Comparison of CO2 heat pump water heater performance with baseline cycle and two high COP cycles journal, May 2010

Hydrocarbons and their mixtures as alternatives to environmental unfriendly halogenated refrigerants: An updated overview journal, June 2017

A review of heat pump water heating systems journal, August 2009

Heat-pipe enhanced solar-assisted heat pump water heater journal, March 2005

Studies of a heat pump using water and air heat sources in parallel journal, January 2000

Theoretical performance analysis of heat pump water heaters using carbon dioxide as refrigerant journal, January 2008

A brief performance comparison of R1234yf and R134a in a bench tester for automobile applications journal, March 2012

Modeling and simulation of the transcritical CO2 heat pump system journal, December 2013

Seasonal performance rating of heat pump water heaters journal, January 2004

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Experimental analysis of R1234yf as a drop-in replacement for R134a in a vapor compression system journal, May 2013

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A validated model for mixing and buoyancy in stratified hot water storage tanks for use in building energy simulations
journal, June 2016

Thermodynamic properties of eight fluorinated olefins
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Advances in heat pump systems: A review
journal, December 2010

Correlating equations for laminar and turbulent free convection from a horizontal cylinder
journal, September 1975

Energy and exergy analysis of a ground-coupled heat pump system with two horizontal ground heat exchangers
journal, October 2007

Modelling and experimental performance analysis of solar-assisted ground source heat pump system
journal, September 2015

Development of a Hot Water Tank Simulation Program with Improved Prediction of Thermal Stratification in the Tank
journal, May 2015

Comparison of CO2 heat pump water heater performance with baseline cycle and two high COP cycles
journal, May 2010

Hydrocarbons and their mixtures as alternatives to environmental unfriendly halogenated refrigerants: An updated overview
journal, June 2017

A review of heat pump water heating systems
journal, August 2009

Heat-pipe enhanced solar-assisted heat pump water heater
journal, March 2005

Studies of a heat pump using water and air heat sources in parallel
journal, January 2000

Theoretical performance analysis of heat pump water heaters using carbon dioxide as refrigerant
journal, January 2008

A brief performance comparison of R1234yf and R134a in a bench tester for automobile applications
journal, March 2012

Modeling and simulation of the transcritical CO2 heat pump system
journal, December 2013

Seasonal performance rating of heat pump water heaters
journal, January 2004

Dynamic modeling of a sensible thermal energy storage tank with an immersed coil heat exchanger under three operation modes
journal, June 2017

Experimental analysis of R1234yf as a drop-in replacement for R134a in a vapor compression system
journal, May 2013

Condensation in horizontal tubes, part 2: new heat transfer model based on flow regimes
journal, August 2003

A comparative study of compact enhanced fin-and-tube heat exchangers
journal, September 2001

Development and validation of static simulation model for CO2 heat pump
journal, April 2011

System optimization and experimental research on air source heat pump water heater
journal, April 2007

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journal, October 2011