Operation performance test and energy efficiency analysis of ground-source heat pump systems

Abstract The goals of this paper are: to estimate the carbon emission reduction on energy efficiency measurements in a laboratory building in Transilvania University from Braşov, Romania, in accordance with the European Directive 2009/28/EC and to estimate the contribution of renewable energy to energy efficiency of the building using the performance indicator named Renewable Energy Ratio - RER. We will detail the methods of calculation for CO2 emissions and we will present the results for gas condensing boiler, and ground source heat pump for the laboratory building. The results show that conventional energy efficiency technologies and renewable energy technologies can be used to decrease CO2 emissions in buildings by 20–30% on average and up to over 40% for some building types and locations. The contribution of renewable energy is between 40 and 50 % from total energy use and only for heating is 58%. This value could rise to 0.63 if we apply to electricity produced by photovoltaic panels.

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REDUCING CO2 EMISSIONS IN A TYPICAL 60 YEARS OLD DETACHED HOUSE IN LONDON

Journal of Green Building ◽

10.3992/jgb.8.2.3 ◽

2013 ◽

Vol 8 (2) ◽

pp. 3-15

Author(s):

Saadia Barbhuiya ◽

Salim Barbhuiya

Keyword(s):

Energy Efficiency ◽

Renewable Energy ◽

Co2 Emissions ◽

Heat Pump ◽

Ground Source Heat Pump ◽

Low Carbon ◽

Ground Source ◽

Efficiency Measures ◽

Detached House ◽

Low Carbon Technologies

INTRODUCTION In this paper an attempt has been made to provide the best options for renewable energy and low carbon technologies to reduce CO2 emissions from a detached house built in 1950 and located in London. The options for energy efficiency measures—photovoltaics, solar thermal, wind turbine, ground source heat pump, Gas CHP—have been evaluated on the basis of energy and CO2 savings and technical viability. The main conclusions derived from this study are summarised in this paper.

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Test investigation of operation performance of novel split-type ground source heat pump systems for clean heating of rural households in North China

Renewable Energy ◽

10.1016/j.renene.2020.08.147 ◽

2021 ◽

Vol 163 ◽

pp. 188-197

Author(s):

Huajun Wang ◽

Biying Liu ◽

Feifan Yang ◽

Feng Liu

Keyword(s):

Heat Pump ◽

North China ◽

Rural Households ◽

Ground Source Heat Pump ◽

Operation Performance ◽

Ground Source ◽

Test Investigation

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The Economic Performance of Ground-Source Heat Pumps

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.919-921.1735 ◽

2014 ◽

Vol 919-921 ◽

pp. 1735-1738 ◽

Cited By ~ 1

Author(s):

Peng Gong ◽

Jian Tang

Keyword(s):

Energy Efficiency ◽

Total Energy ◽

Heat Pump ◽

Air Conditioning ◽

Ground Source Heat Pump ◽

Ground Source Heat Pumps ◽

Heating Systems ◽

Ground Source ◽

Groundwater Heat Pump ◽

Central Air Conditioning

Ground-Source Heat Pump (PSHP) was verified by US Environmental Protection Agency (EPA) as one of the most efficient air conditioning systems on present market. It has a higher efficiency than other heating systems from 50% to 70%, and a higher efficiency than other cooling systems from 30% to 50%. The working principle of PSHP determines its low operating costs. By comparing the total energy efficiency, the existing groundwater heat pump total energy efficiency is the highest, about 115%. The total energy efficiency for soil-source heat pump is up to 100%. But traditional air conditioning is far less than the level. Articles present a research on Ground-Source Heat Pump system and its cost with a scientific and objective principles. Ground-source heat pump is a new central air conditioning system of Low-carbon energy saving. Due to the high technical content, function requirement, and installation difficulty , the average initial investment of ground-source heat pump is much higher than traditional central air conditioning. Taking into account the added costs of heating systems based on traditional central air-conditioning, such as boilers, it will not deviate too much from it.

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Study on Performance of Ground Source Heat Pump Systems Based on Site Tests

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1008-1009.226 ◽

2014 ◽

Vol 1008-1009 ◽

pp. 226-230 ◽

Cited By ~ 2

Author(s):

Bo Peng ◽

Na Zhu ◽

Ping Fang Hu ◽

Li Peng ◽

Fei Lei

Keyword(s):

Heat Pump ◽

Coefficient Of Performance ◽

Ground Source Heat Pump ◽

Test Results ◽

Operation Performance ◽

Design Data ◽

Factors Affecting ◽

Ground Source ◽

Actual Operation ◽

Saving Rates

This study analyze the actual operation performance and energy efficiency of thirty-nine ground source heat pump (GSHP) systems based on site tests in Wuhan, China. These systems include ground couple heat pump (GCHP) systems, ground water heat pump (GWHP) systems and hybrid ground source heat pump (HGSHP) systems. The results show that energy-saving rates reach 30% for most of the systems using method recommended by Assessment Guideline. The coefficient of performance (COP) of the systems varies as follow: 2.6-4.85 for GCHP systems; 2.58-3.74 for GWHP systems; 2.66-5.67 for combined heat pump systems. According to the test results and system design data, analyses the factors affecting the system performance of three types of ground source heat pump systems.

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