441 Development of a noble energy supply system for apartment houses Evaluation of the heat pump system using the exhaust gas from the co-generation

Baoji “Shigu • Tian Xi Tai”, “Shigu • Sun City” ground source heat pump energy station system is an important energy supply project in Shigu. In this paper, we systematically introduce the design of green building and ground-source heat pump system, points of construction process, pre-cooling station technology, EMC economic model in detail. In addition, the ground source heat pump system of the project was tested in the field to analyze and evaluate the running performance of the system. We hope our research can provide some reference and help to the practitioners.

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The Study on the Performance of Solar Photovoltaic and Air Source Heat Pump Composite Building Energy Supply System

Procedia Engineering ◽

10.1016/j.proeng.2017.09.900 ◽

2017 ◽

Vol 205 ◽

pp. 4082-4089 ◽

Cited By ~ 1

Author(s):

Jiannan Tong ◽

Zhenhua Quan ◽

Yaohua Zhao ◽

Gang Wang ◽

Junjie Cai ◽

...

Keyword(s):

Heat Pump ◽

Energy Supply ◽

Building Energy ◽

Supply System ◽

Solar Photovoltaic ◽

Energy Supply System ◽

Air Source Heat Pump

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Exergy Evaluation of a Heat Supply System with Vapor Compression Heat Pumps

Energies ◽

10.3390/en12061028 ◽

2019 ◽

Vol 12 (6) ◽

pp. 1028 ◽

Cited By ~ 3

Author(s):

Agata Rijs ◽

Tomasz Mróz

Keyword(s):

Heat Pump ◽

Heat Supply ◽

Heat Supply System ◽

Heat Pumps ◽

Supply System ◽

Exergy Efficiency ◽

Vapor Compression ◽

Outdoor Temperature ◽

Pump System ◽

Heat Pump System

The vapor compression heat pumps are very popular solutions regarding heat supply systems of modern, low energy buildings. It is partly due to the fact that they are treated as a sustainable heat supply. The question arises: Can a vapor compression heat pump be treated as a sustainable heat supply? To answer this question; the exergy model of a heat pump system operation has been proposed. The proposed model has been employed for evaluation of exergy efficiency of an existing heat supply system equipped with two heat pumps installed in an educational building located on the campus of Poznan University of Technology, Poznan, Poland. The analysis shows that the system exergy efficiency decreases with an increase in outdoor temperature and its values are in the range of 10.9% to 42.0%. The primary exergy efficiency, which considers the conversion of fossil fuel into electricity, is on average 3.2 times lower than the system exergy efficiency for the outdoor temperature range of −9 °C to 11 °C. The performed analysis allowed for the identification of a set of solutions that may increase the exergy and primary exergy efficiency of the system. The first solution is to cover a part of the electricity demand by a renewable energy source. The second proposition is to apply a low-temperature emission system for heating. The third idea is to apply a district heating network as the heat supply instead of the heat pump. The conclusion is that the exergy performance of systems with heat pumps is rather poor because they generate low-quality heat from high-quality electricity. The best way to improve the primary exergy efficiency of a heat pump system is to power the system by electricity generated from a renewable energy source.

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