Performance study on solar assisted heat pump water heater using CO2 in a transcritical cycle

M. Raisul Islam; K. Sumathy; J. Gong; Samee Ullah Khan

doi:10.24084/repqj10.720

Performance study on solar assisted heat pump water heater using CO₂ in a transcritical cycle

M. Raisul Islam, K. Sumathy, J. Gong, Samee Ullah Khan

Penn State Erie, The Behrend College

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

This study reports the numerical analyses of a CO₂ transcritical cycle on solar assisted heat pump water heating system in which evacuated tube U-pipe solar collector is utilized as an evaporator. This simulation model can predict operating characteristics for moderate meteorological conditions of North Dakota. The main purpose of this work is to simulate the overall performance of the heat pump cycle by varying compressor speed. From the analysis the coefficient of performance (COP) value is predicted from 1.5 – 2.8 with three different average solar insolation. The results showed that the performance of the system significantly influenced by the compressor speed and solar irradiation. This study also calculated the instantaneous collector efficiency and found in the range of 50 – 55%.

Original language	English (US)
Article number	720
Pages (from-to)	1421-1425
Number of pages	5
Journal	Renewable Energy and Power Quality Journal
Volume	1
Issue number	10
DOIs	https://doi.org/10.24084/repqj10.720
State	Published - Apr 2012

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Electrical and Electronic Engineering

UN SDGs

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

Access to Document

10.24084/repqj10.720

Cite this

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abstract = "This study reports the numerical analyses of a CO2 transcritical cycle on solar assisted heat pump water heating system in which evacuated tube U-pipe solar collector is utilized as an evaporator. This simulation model can predict operating characteristics for moderate meteorological conditions of North Dakota. The main purpose of this work is to simulate the overall performance of the heat pump cycle by varying compressor speed. From the analysis the coefficient of performance (COP) value is predicted from 1.5 – 2.8 with three different average solar insolation. The results showed that the performance of the system significantly influenced by the compressor speed and solar irradiation. This study also calculated the instantaneous collector efficiency and found in the range of 50 – 55%.",

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