Ammonia as a natural refrigerant in electrically and thermally driven engines for heat pumps

Moonis R. Ally; Vishaldeep Sharma; Omar Abdelaziz

doi:10.18462/iir.gl.2018.1225

Ammonia as a natural refrigerant in electrically and thermally driven engines for heat pumps

Moonis R. Ally, Vishaldeep Sharma, Omar Abdelaziz

Building Equipment Research Group

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Ammonia is an excellent refrigerant for use in absorption or in vapor compression heat pumps because of its favorable thermodynamic and heat transfer properties. We examine the choice of driving a heat pump with a thermally-driven (TD) engine as in the case of an absorption device, or with an electrically-driven (ED) engine, as in the case of a Rankine cycle heat pump. Which engine has a lower carbon footprint and has the least environmental impact is the quintessential issue discussed in this presentation. The question is examined through a comprehensive methodology of energy and exergy analysis which explains why the output of these two engines is so different, and what impact it makes for source energy consumption, and environmental stewardship. This work is a fundamental analysis which discusses the choices and consequences of ED versus TD heat pumps and its direct impact on the environment. Thermodynamic consistency is guaranteed by invoking the First and the Second Laws applied to various components and subsystems of the TD and ED heat pumps.

Original language	English
Title of host publication	13th IIR Gustav Lorentzen Conference on Natural Refrigerants
Subtitle of host publication	Natural Refrigerant Solutions for Warm Climate Countries, Proceedings
Publisher	International Institute of Refrigeration
Pages	596-603
Number of pages	8
ISBN (Electronic)	9782362150265
DOIs	https://doi.org/10.18462/iir.gl.2018.1225
State	Published - 2018
Event	13th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerant Solutions for Warm Climate Countries - Valencia, Spain Duration: Jun 18 2018 → Jun 20 2018

Publication series

Name	Refrigeration Science and Technology
Volume	2018-June
ISSN (Print)	0151-1637

Conference

Conference	13th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerant Solutions for Warm Climate Countries
Country/Territory	Spain
City	Valencia
Period	06/18/18 → 06/20/18

Funding

The authors are grateful to the U.S Department of Energy for funding this research. This research [or, a portion of this research] used resources at the Building Technologies Research and Integration Center, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory.

Keywords

Absorption
Ammonia
Energy efficiency
Exergy
Refrigeration
Vapor compression

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.18462/iir.gl.2018.1225

Cite this

Ally, M. R., Sharma, V., & Abdelaziz, O. (2018). Ammonia as a natural refrigerant in electrically and thermally driven engines for heat pumps. In 13th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerant Solutions for Warm Climate Countries, Proceedings (pp. 596-603). (Refrigeration Science and Technology; Vol. 2018-June). International Institute of Refrigeration. https://doi.org/10.18462/iir.gl.2018.1225

Ally, Moonis R. ; Sharma, Vishaldeep ; Abdelaziz, Omar. / Ammonia as a natural refrigerant in electrically and thermally driven engines for heat pumps. 13th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerant Solutions for Warm Climate Countries, Proceedings. International Institute of Refrigeration, 2018. pp. 596-603 (Refrigeration Science and Technology).

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abstract = "Ammonia is an excellent refrigerant for use in absorption or in vapor compression heat pumps because of its favorable thermodynamic and heat transfer properties. We examine the choice of driving a heat pump with a thermally-driven (TD) engine as in the case of an absorption device, or with an electrically-driven (ED) engine, as in the case of a Rankine cycle heat pump. Which engine has a lower carbon footprint and has the least environmental impact is the quintessential issue discussed in this presentation. The question is examined through a comprehensive methodology of energy and exergy analysis which explains why the output of these two engines is so different, and what impact it makes for source energy consumption, and environmental stewardship. This work is a fundamental analysis which discusses the choices and consequences of ED versus TD heat pumps and its direct impact on the environment. Thermodynamic consistency is guaranteed by invoking the First and the Second Laws applied to various components and subsystems of the TD and ED heat pumps.",

keywords = "Absorption, Ammonia, Energy efficiency, Exergy, Refrigeration, Vapor compression",

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doi = "10.18462/iir.gl.2018.1225",

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Ally, MR, Sharma, V & Abdelaziz, O 2018, Ammonia as a natural refrigerant in electrically and thermally driven engines for heat pumps. in 13th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerant Solutions for Warm Climate Countries, Proceedings. Refrigeration Science and Technology, vol. 2018-June, International Institute of Refrigeration, pp. 596-603, 13th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerant Solutions for Warm Climate Countries, Valencia, Spain, 06/18/18. https://doi.org/10.18462/iir.gl.2018.1225

Ammonia as a natural refrigerant in electrically and thermally driven engines for heat pumps. / Ally, Moonis R.; Sharma, Vishaldeep; Abdelaziz, Omar.
13th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerant Solutions for Warm Climate Countries, Proceedings. International Institute of Refrigeration, 2018. p. 596-603 (Refrigeration Science and Technology; Vol. 2018-June).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Ammonia as a natural refrigerant in electrically and thermally driven engines for heat pumps

AU - Ally, Moonis R.

AU - Sharma, Vishaldeep

AU - Abdelaziz, Omar

PY - 2018

Y1 - 2018

N2 - Ammonia is an excellent refrigerant for use in absorption or in vapor compression heat pumps because of its favorable thermodynamic and heat transfer properties. We examine the choice of driving a heat pump with a thermally-driven (TD) engine as in the case of an absorption device, or with an electrically-driven (ED) engine, as in the case of a Rankine cycle heat pump. Which engine has a lower carbon footprint and has the least environmental impact is the quintessential issue discussed in this presentation. The question is examined through a comprehensive methodology of energy and exergy analysis which explains why the output of these two engines is so different, and what impact it makes for source energy consumption, and environmental stewardship. This work is a fundamental analysis which discusses the choices and consequences of ED versus TD heat pumps and its direct impact on the environment. Thermodynamic consistency is guaranteed by invoking the First and the Second Laws applied to various components and subsystems of the TD and ED heat pumps.

AB - Ammonia is an excellent refrigerant for use in absorption or in vapor compression heat pumps because of its favorable thermodynamic and heat transfer properties. We examine the choice of driving a heat pump with a thermally-driven (TD) engine as in the case of an absorption device, or with an electrically-driven (ED) engine, as in the case of a Rankine cycle heat pump. Which engine has a lower carbon footprint and has the least environmental impact is the quintessential issue discussed in this presentation. The question is examined through a comprehensive methodology of energy and exergy analysis which explains why the output of these two engines is so different, and what impact it makes for source energy consumption, and environmental stewardship. This work is a fundamental analysis which discusses the choices and consequences of ED versus TD heat pumps and its direct impact on the environment. Thermodynamic consistency is guaranteed by invoking the First and the Second Laws applied to various components and subsystems of the TD and ED heat pumps.

KW - Absorption

KW - Ammonia

KW - Energy efficiency

KW - Exergy

KW - Refrigeration

KW - Vapor compression

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M3 - Conference contribution

AN - SCOPUS:85049835212

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BT - 13th IIR Gustav Lorentzen Conference on Natural Refrigerants

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Y2 - 18 June 2018 through 20 June 2018

ER -

Ally MR, Sharma V, Abdelaziz O. Ammonia as a natural refrigerant in electrically and thermally driven engines for heat pumps. In 13th IIR Gustav Lorentzen Conference on Natural Refrigerants: Natural Refrigerant Solutions for Warm Climate Countries, Proceedings. International Institute of Refrigeration. 2018. p. 596-603. (Refrigeration Science and Technology). doi: 10.18462/iir.gl.2018.1225

Ammonia as a natural refrigerant in electrically and thermally driven engines for heat pumps

Abstract

Publication series

Conference

Funding

Keywords

UN SDGs

Access to Document

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