A hardware-based heat pump water heater design model for quasi-steady-state simulation

Bo Shen; Kashif Nawaz; Ahmed Elatar; Van Baxter

doi:10.18462/iir.icr.2019.0444

A hardware-based heat pump water heater design model for quasi-steady-state simulation

Bo Shen, Kashif Nawaz, Ahmed Elatar, Van Baxter

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

1 Scopus citations

Abstract

A storage heat pump water heater (HPWH) comprises a vapor compression system and a hot water tank. It can lead to more than 70% energy saving, compared to electric resistance heating. HPWH usually uses a wrapped-tank coil as the water heater. The wrapped coil has a strong interaction with the water tank and impose a new challenge for the engineering design and simulation study. Based on the US DOE/ORNL Heat Pump Design Model (HPDM), a component-based thermal system modelling platform, a segment-to-segment wrapped-tank coil model and a one-dimensional stratified water tank model were developed, which facilitates modeling and design HPWHs having various configurations and components. In the paper, the new HPWH system design model was used to investigate effects of compressor size, refrigerant charge, water draw pattern, and refrigerant type, etc., for predicting 24-hour energy factors and first-hour rating. The HPWH system model was proved to be an effective equipment design tool.

Original language	English
Title of host publication	ICR 2019 - 25th IIR International Congress of Refrigeration
Editors	Vasile Minea
Publisher	International Institute of Refrigeration
Pages	4310-4317
Number of pages	8
ISBN (Electronic)	9782362150357
DOIs	https://doi.org/10.18462/iir.icr.2019.0444
State	Published - 2019
Event	25th IIR International Congress of Refrigeration, ICR 2019 - Montreal, Canada Duration: Aug 24 2019 → Aug 30 2019

Publication series

Name	Refrigeration Science and Technology
Volume	2019-August
ISSN (Print)	0151-1637

Conference

Conference	25th IIR International Congress of Refrigeration, ICR 2019
Country/Territory	Canada
City	Montreal
Period	08/24/19 → 08/30/19

Funding

1 Notice: This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). The authors are grateful to Mr. Antonio Bouza, Technology Development Department of Energy, Building Technologies Office for supporting this work. The authors are grateful to Mr. Antonio Bouza, Technology Development Manager of the U.S Department of Energy, Building Technologies Office for supporting this work.

Funders	Funder number
US Department of Energy
U.S. Department of Energy
Building Technologies Office
Bioenergy Technologies Office

Keywords

Heat Pump Water Heater
Low GWP Refrigerant
Modelling
Wrapped-Tank Condenser

UN SDGs

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

Access to Document

10.18462/iir.icr.2019.0444

Cite this

Shen, B., Nawaz, K., Elatar, A., & Baxter, V. (2019). A hardware-based heat pump water heater design model for quasi-steady-state simulation. In V. Minea (Ed.), ICR 2019 - 25th IIR International Congress of Refrigeration (pp. 4310-4317). Article 444 (Refrigeration Science and Technology; Vol. 2019-August). International Institute of Refrigeration. https://doi.org/10.18462/iir.icr.2019.0444

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title = "A hardware-based heat pump water heater design model for quasi-steady-state simulation",

abstract = "A storage heat pump water heater (HPWH) comprises a vapor compression system and a hot water tank. It can lead to more than 70% energy saving, compared to electric resistance heating. HPWH usually uses a wrapped-tank coil as the water heater. The wrapped coil has a strong interaction with the water tank and impose a new challenge for the engineering design and simulation study. Based on the US DOE/ORNL Heat Pump Design Model (HPDM), a component-based thermal system modelling platform, a segment-to-segment wrapped-tank coil model and a one-dimensional stratified water tank model were developed, which facilitates modeling and design HPWHs having various configurations and components. In the paper, the new HPWH system design model was used to investigate effects of compressor size, refrigerant charge, water draw pattern, and refrigerant type, etc., for predicting 24-hour energy factors and first-hour rating. The HPWH system model was proved to be an effective equipment design tool.",

keywords = "Heat Pump Water Heater, Low GWP Refrigerant, Modelling, Wrapped-Tank Condenser",

author = "Bo Shen and Kashif Nawaz and Ahmed Elatar and Van Baxter",

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doi = "10.18462/iir.icr.2019.0444",

language = "English",

series = "Refrigeration Science and Technology",

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Shen, B , Nawaz, K , Elatar, A & Baxter, V 2019, A hardware-based heat pump water heater design model for quasi-steady-state simulation. in V Minea (ed.), ICR 2019 - 25th IIR International Congress of Refrigeration., 444, Refrigeration Science and Technology, vol. 2019-August, International Institute of Refrigeration, pp. 4310-4317, 25th IIR International Congress of Refrigeration, ICR 2019, Montreal, Canada, 08/24/19. https://doi.org/10.18462/iir.icr.2019.0444

A hardware-based heat pump water heater design model for quasi-steady-state simulation. / Shen, Bo ; Nawaz, Kashif ; Elatar, Ahmed et al.
ICR 2019 - 25th IIR International Congress of Refrigeration. ed. / Vasile Minea. International Institute of Refrigeration, 2019. p. 4310-4317 444 (Refrigeration Science and Technology; Vol. 2019-August).

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

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A hardware-based heat pump water heater design model for quasi-steady-state simulation

Abstract

Publication series

Conference

Funding

Keywords

UN SDGs

Access to Document

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