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Design, Simulation, and Performance Analysis of Multifunctional Solar-Assisted Heat Pump Systems for Residential Buildings.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Design, Simulation, and Performance Analysis of Multifunctional Solar-Assisted Heat Pump Systems for Residential Buildings./
Author:	Zare, Amirahmad.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	195 p.
Notes:	Source: Dissertations Abstracts International, Volume: 83-03, Section: B.
Contained By:	Dissertations Abstracts International83-03B.
Subject:	Mechanical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28715341
ISBN:	9798535570853

Design, Simulation, and Performance Analysis of Multifunctional Solar-Assisted Heat Pump Systems for Residential Buildings.
Zare, Amirahmad.

Design, Simulation, and Performance Analysis of Multifunctional Solar-Assisted Heat Pump Systems for Residential Buildings. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 195 p.

Source: Dissertations Abstracts International, Volume: 83-03, Section: B.

Thesis (Ph.D.)--The University of North Carolina at Charlotte, 2021.

This item must not be sold to any third party vendors.

Residential buildings contribute about 22% of the national energy use in the U.S. Space heating, domestic hot water (DHW), and space cooling are the three major end uses, respectively accounting for 43%, 19%, and 8% of the residential sector's total primary energy consumption. Currently, fossil fuels are the predominant source of energy in the residential sector. To address the problems caused by the combustion of fossil fuels, alternative renewable, low-emission, and energy-efficient technologies for heating and cooling applications in residential buildings are highly needed. In this respect, solar-assisted heat pump (SAHP) systems are a promising solution by coupling solar collectors with heat pumps that can complement each other to achieve high solar utilization and high efficiency of the heat pump. his research proposes and evaluates a hybrid multifunctional SAHP system that can provide space heating, space cooling, DHW, and onsite electricity generation. The indirect expansion SAHP system supports both parallel and series configurations. Major components of the SAHP system include unglazed PVT collectors, a liquid-to-liquid heat pump, a thermal storage tank, a DHW tank, auxiliary electric water heaters, and pumps. Photovoltaic-thermal (PVT) collectors are used to serve three functions, including electricity generation (daytime), heat collection (usually daytime), and radiative cooling (usually nighttime). The system design and controls support fourteen operational modes involving different components for space heating, space cooling, and DHW heating. TRNSYS software is used to model and simulate the multifunctional SAHP system. The system performance is evaluated in two locations (i.e., Baltimore, MD and Las Vegas, NV) with different climates. Based on the performance analysis of the system simulation, three potential performance improvement strategies, including replacing the thermal storage tank with an outdoor swimming pool or a tank having phase change materials for latent thermal storage, and replacing the liquid-to-liquid heat pump with a dual-source heat pump are explored. The TRNSYS simulation results are also used to calculate the simple payback period of the incremental investment associated with the multifunctional SAHP system relative to a reference air-source heat pump system. With a 2 m3 storage tank and 30 m2 PVT collectors, the multifunctional SAHP system has a seasonal performance factor of 2.7 in Baltimore and 3.7 in Las Vegas. In comparison with the reference system, the SAHP system saves energy by 48% in Baltimore and 61% in Las Vegas. The seasonal performance factor of the SAHP system can be further improved by using a swimming pool to replace the storage tank in Las Vegas and using a dual-source heat pump in Baltimore.

ISBN: 9798535570853Subjects--Topical Terms:

649730
Mechanical engineering.
Subjects--Index Terms:

Building simulation

Design, Simulation, and Performance Analysis of Multifunctional Solar-Assisted Heat Pump Systems for Residential Buildings.
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520 $a Residential buildings contribute about 22% of the national energy use in the U.S. Space heating, domestic hot water (DHW), and space cooling are the three major end uses, respectively accounting for 43%, 19%, and 8% of the residential sector's total primary energy consumption. Currently, fossil fuels are the predominant source of energy in the residential sector. To address the problems caused by the combustion of fossil fuels, alternative renewable, low-emission, and energy-efficient technologies for heating and cooling applications in residential buildings are highly needed. In this respect, solar-assisted heat pump (SAHP) systems are a promising solution by coupling solar collectors with heat pumps that can complement each other to achieve high solar utilization and high efficiency of the heat pump. his research proposes and evaluates a hybrid multifunctional SAHP system that can provide space heating, space cooling, DHW, and onsite electricity generation. The indirect expansion SAHP system supports both parallel and series configurations. Major components of the SAHP system include unglazed PVT collectors, a liquid-to-liquid heat pump, a thermal storage tank, a DHW tank, auxiliary electric water heaters, and pumps. Photovoltaic-thermal (PVT) collectors are used to serve three functions, including electricity generation (daytime), heat collection (usually daytime), and radiative cooling (usually nighttime). The system design and controls support fourteen operational modes involving different components for space heating, space cooling, and DHW heating. TRNSYS software is used to model and simulate the multifunctional SAHP system. The system performance is evaluated in two locations (i.e., Baltimore, MD and Las Vegas, NV) with different climates. Based on the performance analysis of the system simulation, three potential performance improvement strategies, including replacing the thermal storage tank with an outdoor swimming pool or a tank having phase change materials for latent thermal storage, and replacing the liquid-to-liquid heat pump with a dual-source heat pump are explored. The TRNSYS simulation results are also used to calculate the simple payback period of the incremental investment associated with the multifunctional SAHP system relative to a reference air-source heat pump system. With a 2 m3 storage tank and 30 m2 PVT collectors, the multifunctional SAHP system has a seasonal performance factor of 2.7 in Baltimore and 3.7 in Las Vegas. In comparison with the reference system, the SAHP system saves energy by 48% in Baltimore and 61% in Las Vegas. The seasonal performance factor of the SAHP system can be further improved by using a swimming pool to replace the storage tank in Las Vegas and using a dual-source heat pump in Baltimore.
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650 4 $a Energy. $3 876794
650 4 $a Investigations. $3 3561159
650 4 $a Thermal energy. $3 3560700
650 4 $a Systems design. $3 3433840
650 4 $a Seasons. $3 523975
650 4 $a Green buildings. $3 3559500
650 4 $a Energy consumption. $3 631630
650 4 $a Radiation. $3 673904
650 4 $a Efficiency. $3 753744
650 4 $a Statistical analysis. $3 3543751
650 4 $a Swimming pools. $3 638396
650 4 $a Heat transfer. $3 3391367
650 4 $a Simulation. $3 644748
650 4 $a Solar energy. $3 520346
650 4 $a Heat exchangers. $3 626398
650 4 $a Fossil fuels. $3 701525
650 4 $a Temperature. $3 711968
650 4 $a Electricity generation. $3 3553982
650 4 $a Photovoltaic cells. $3 604818
650 4 $a Alternative energy sources. $3 3561089
650 4 $a Renewable resources. $3 3559207
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653 $a Thermal storage
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