517 Performance Enhancement of a CO_2 Heat Pump Water Heating System by Extracting Water With Middle Temperatures : Performance Analysis Under a Daily Change in a Simulated Hot Water Demand

2009 ◽  
Vol 2009.84 (0) ◽  
pp. _5-23_
Author(s):  
Junya KAMAKARI ◽  
Ryohei YOKOYAMA ◽  
Tetsuya WAKUI ◽  
Kazuhisa TAKEMURA
Keyword(s):  
Performance Analysis ◽  
Heat Pump ◽  
Water Demand ◽  
Performance Enhancement ◽  
Heating System ◽  
Hot Water ◽  
Water Heating ◽  
Daily Change

Performance analysis of a CO2 heat pump water heating system under a daily change in a standardized demand

Energy ◽  
2010 ◽  
Vol 35 (2) ◽  
pp. 718-728 ◽  
Author(s):  
Ryohei Yokoyama ◽  
Tetsuya Wakui ◽  
Junya Kamakari ◽  
Kazuhisa Takemura
Keyword(s):  
Performance Analysis ◽  
Heat Pump ◽  
Heating System ◽  
Water Heating ◽  
Daily Change

Research on Composite System of Solar Energy Reclaimed Water Heat Pump and Phase Change Energy Storage

2014 ◽  
Vol 521 ◽  
pp. 56-59
Author(s):  
Hui Xing Li ◽  
Peng Cheng ◽  
Guo Hui Feng ◽  
Ran Zhang
Keyword(s):  
Heat Pump ◽  
Operating Cost ◽  
Reclaimed Water ◽  
Water Source ◽  
Heating System ◽  
Hot Water ◽  
Water Heating ◽  
Pump System ◽  
Heat Pump System ◽  
Important Approach

New energy development and utilization is an important approach to solve the problem of energy shortage,a new type of composite heating system is proposed in this study. It expounds the research ideas, the technical principle and operation plan of the system. Through a comparative analysis of the performance coefficient of composite heating system, reclaimed water source heat pump system and solar hot water heating system, it Comes to the conclusions that the composite heating system can not only reduce the operating cost but also improve the running performance of reclaimed water source heat pump and reduce the heat loss of solar hot water heating system.

scholarly journals Research and Analysis of Combined Operational Mode of Solar Energy Hot Water Heating System and Sewage Source Heat Pump Units

2015 ◽  
Vol 121 ◽  
pp. 1544-1555
Author(s):  
Mingzhi Jiang ◽  
Guohui Feng ◽  
Kailiang Huang ◽  
Shibo Liu ◽  
Dong Liang ◽  
...  
Keyword(s):  
Solar Energy ◽  
Heat Pump ◽  
Heating System ◽  
Hot Water ◽  
Operational Mode ◽  
Water Heating ◽  
Sewage Source

scholarly journals A Comparison of Solar Photovoltaic and Solar Thermal Collector for Residential Water Heating and Space Heating System

2019 ◽  
Vol 4 (12) ◽  
pp. 41-47
Author(s):  
Md. Habibur Rahaman ◽  
Tariq Iqbal
Keyword(s):  
Energy Storage ◽  
Heat Pump ◽  
Storage System ◽  
Heating System ◽  
Hot Water ◽  
Space Heating ◽  
Solar Photovoltaic ◽  
Single Family ◽  
Water Heating ◽  
Domestic Water

Almost all single-family detached houses in Canada consume enormous electrical energy for space heating and domestic hot water (DHW) purposes. There are many possibilities to design an energy-efficient house. A solar water heating system can be used for domestic water and space heating. Water temperature can be kept constant always by connecting a heat pump or oil burner to the main tank because solar energy is intermittent. The sizing of solar photovoltaic and collector, tank, heat pump are essential to design an effective system based on the system energy consumption. The existing house is just a conventional house where space and water heating are provided by the grid electricity only. In this research, two possible ways of thermal energy storage systems have been designed for a residential single-family house with solar collector and solar photovoltaic. It is proved that the proposed PV based energy storage system is highly suitable considering lower cost, high output power, flexibility, and easy installation.

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