Solar-assisted Heat Pump Test Apparatus

Banister, Carsen; Wagar, William Robert; Collins, Michael R.

doi:10.1016/j.egypro.2014.02.058

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…Annual system performance will also depend on climate and load, further complicating the comparison. Banister et al [16] made an apparatus to evaluate the accuracy of the TRNSYS model for a dual-tank solar-assisted water-to-water heat pump. The experimental results showed high accuracy and reliability of TRNSYS simulations, which led the current study to use this software as the modeling and simulation platform.…”

Section: Introductionmentioning

confidence: 99%

Integrating Novel Microchannel-Based Solar Collectors with a Water-to-Water Heat Pump for Cold-Climate Domestic Hot Water Supply, Including Related Solar Systems Comparisons

Kashan

Fung

Swift³

2021

Energies

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In Canada, more than 80% of energy in the residential sector is used for space heating and domestic hot water (DHW) production. This study aimed to model and compare the performance of four different systems, using solar energy as a renewable energy source for DHW production. A novel microchannel (MC) solar thermal collector and a microchannel-based hybrid photovoltaic/thermal collector (PVT) were fabricated (utilizing a microchannel heat exchanger in both cases), mathematical models were created, and performance was simulated in TRNSYS software. A water-to-water heat pump (HP) was integrated with these two collector-based solar systems, namely MCPVT-HP and MCST-HP, to improve the total solar fraction. System performance was then compared with that of a conventional solar-thermal-collector-based system and that of a PV-resistance (PV-R) system, using a monocrystalline PV collector. The heat pump was added to the systems to improve the systems’ efficiency and provide the required DHW temperatures when solar irradiance was insufficient. Comparisons were performed based on the temperature of the preheated water storage tank, the PV panel efficiency, overall system efficiency, and the achieved solar fraction. The microchannel PVT-heat pump (MCPVT-HP) system has the highest annual solar fraction among all the compared systems, at 76.7%. It was observed that this system had 10% to 35% higher solar fraction than the conventional single-tank solar-thermal-collector-based system during the wintertime in a cold climate. The performance of the two proposed MC-based systems is less sensitive than the two conventional systems to collector tilt angle in the range of 45 degrees to 90 degrees. If roof space is limited, the MCPVT-HP system is the best choice, as the MCPVT collector can perform effectively when mounted vertically on the facades of high-rise residential and commercial buildings. A comparison among five Canadian cities was also performed, and we found that direct beam radiation has a great effect on overall system solar faction.

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Section: Introductionmentioning

confidence: 99%

Integrating Novel Microchannel-Based Solar Collectors with a Water-to-Water Heat Pump for Cold-Climate Domestic Hot Water Supply, Including Related Solar Systems Comparisons

Kashan

Fung

Swift³

2021

Energies

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“…Their research began with the publishing of a feasibility analysis of indirect SAHPs by Sterling & Collins as noted in Chu & Cruickshank [20,35]. This was followed by papers describing the development of the experimental model and validation of the simulation model [36,37].…”

Section: Figure 10 -Indirect Series Energy Flowmentioning

confidence: 99%

“…These papers are the foundation of published 2015 work detailing the development, performance, and assessment of an indirect dual tank SAHP system [34]. The same experimental setup is used [37]. The TRNSYS model that had been outlined is updated to include a cold-side storage tank.…”

Section: Figure 10 -Indirect Series Energy Flowmentioning

confidence: 99%

Assessment of Solar Assisted Heat Pump Configurations in Canada

Beauchamp¹

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This thesis discusses the energy savings, performance, and cost savings of various SAHP configurations in Canada, focusing on parallel systems. Configurations are evaluated for two detached housing archetypes, across a variety of Canadian climates.Modelling takes place in two stages. A first stage using a spreadsheet tool to determine which configuration holds the most potential followed by a more detailed second stage in TRNSYS to investigate it. The first stage found that parallel SAHPs hold the most potential. The second stage found that parallel systems provided significant savings across all cities and housing archetypes. A combination of SDHW and ASHP outperformed the parallel system at low collector areas. However, no predicted savings were high enough to payback the predicted installation costs. This document explains the models, assumptions, and results. Recommendations are discussed for future research on system sizing, configurations of interest, heat pump modelling, and component costing.iii I would also like to give a special thanks to my co-supervisor from NRCAN, Sébastien Brideau, for providing me with continuous support and necessary guidance for completing this work. His breadth and depth of knowledge in the field has been inspirational. I would also like to thank my colleagues,

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Development and performance of a dual tank solar-assisted heat pump system

Banister

Collins

2015

Applied Energy

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Solar-assisted Heat Pump Test Apparatus

Cited by 7 publications

References 8 publications

Integrating Novel Microchannel-Based Solar Collectors with a Water-to-Water Heat Pump for Cold-Climate Domestic Hot Water Supply, Including Related Solar Systems Comparisons

Integrating Novel Microchannel-Based Solar Collectors with a Water-to-Water Heat Pump for Cold-Climate Domestic Hot Water Supply, Including Related Solar Systems Comparisons

Assessment of Solar Assisted Heat Pump Configurations in Canada

Development and performance of a dual tank solar-assisted heat pump system

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