scholarly journals The modeling and energy efficiency analysis of thermal energy management operation of ground source heat pump air-conditioning system

2020 ◽  
Vol 24 (5 Part B) ◽  
pp. 3229-3237
Author(s):  
Xuli Wang ◽  
Jing Ma ◽  
Feng Zhao ◽  
Liang Tang ◽  
Lei Wang
Keyword(s):  
Energy Efficiency ◽  
Heat Pump ◽  
Air Conditioning ◽  
Hydraulic Loss ◽  
Ground Source Heat Pump ◽  
Efficiency Ratio ◽  
Air Conditioning System ◽  
Ground Source ◽  
Saving Effect ◽  
Management Operation

To improve the energy-saving effect of the ground source heat pump air-conditioning system, an example is investigated, and the annual loads of the building are simulated and analyzed. The thermal energy management operation modelling is conducted. The hydraulic analysis is performed for different modes in each section. Given the same flow and tube type, a larger pipe diameter indicates a smaller hydraulic loss. Compared with the parallel 5-well loop and the parallel 10-well loop, the hydraulic loss of the series 2-well loop is the highest. When the sub-catch is connected to 5 loops, as the number of series wells increases, the tube length gets longer, the flow rate allocated by the loop gets less, and the load increases. Besides, the energy efficiency ratio of the ground source side decreases as the heat rejection load increases. Therefore, by adjusting the pipe diameter, the pipe type, and the depth of the well, the hydraulic loss can be reduced. The energy-saving effect of the loop in the parallel mode is better. Given the limited number of the managed wells, the parallel circuit can be adjusted to the same program. The connection allows the collector to distribute the flow evenly. The energy efficiency ratio of the ground source can be improved by changing the diameter of the horizontal trunk pipe. It is hoped that the hydraulic optimization design of the ground source heat pump air-conditioning system can provide a theoretical basis for the application and promotion of the ground source heat pumps.

Study on the Ground-Source Heat Pump with Properties of Thermal Dynamics Used in Heating and Air Conditioning by Economic Analysis

2012 ◽  
Vol 252 ◽  
pp. 433-437
Author(s):  
Zhi Yang Yuan
Keyword(s):  
Economic Analysis ◽  
Heat Pump ◽  
Air Conditioning ◽  
Surface Soil ◽  
Ground Source Heat Pump ◽  
Thermal Dynamics ◽  
Air Conditioning System ◽  
Economic Competitiveness ◽  
Heating And Cooling ◽  
Ground Source

The ground-source heat pump is a system which takes the shallow surface soil energy as the source of heating and cooling. The temperature of ground source is relatively stable throughout the year, which makes the ground-source heat pump have the higher operation efficiency compared with the traditional air-conditioning system.Study on the ground-source heat pump with properties of thermal dynamics used in heating and air comditioning by ecomomic analysis is still an important issue. In this paper, the ground-source heat pump and the traditional heating and air-conditioning system have been compared in terms of their economic competitiveness. Firstly, it is required to compare the ground-source heat pump with the traditional heating method in terms of the heating economy. Afterwards, it is necessary to compare the ground-source heat pump with the conventional electric refrigeration in terms of the air-conditioning economy. Finally, it is needed to conduct the comprehensive and economic analysis for the ground-source heat pump and the boilers and air conditioning, which includes four programs.

The Economic Performance of Ground-Source Heat Pumps

2014 ◽  
Vol 919-921 ◽  
pp. 1735-1738 ◽  
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.

Economic Evaluation of Ground-Source Heat Pump Air-Conditioning Systems

2012 ◽  
Vol 512-515 ◽  
pp. 1125-1128
Author(s):  
Liang Chen ◽  
Chao Zhang ◽  
Yong Li
Keyword(s):  
Economic Evaluation ◽  
Heat Pump ◽  
Air Conditioning ◽  
Evaluation Methods ◽  
Ground Source Heat Pump ◽  
Air Conditioning System ◽  
Investment Projects ◽  
Ground Source ◽  
Air Conditioning Systems

Analyze economically and make evaluation of several investment projects of ground-source heat pump combining relevant economic evaluation methods. Compare this system with other conventional air conditioning systems in economic input to provide suggestions for applying and promoting the ground-source heat pump air-conditioning system.

Design of a Composite Cold and Heat Source System of Air Conditioning Based on Ground Source Heat Pump (GSHP)

2011 ◽  
Vol 374-377 ◽  
pp. 649-654
Author(s):  
Ying Yu
Keyword(s):  
Heat Pump ◽  
Air Conditioning ◽  
Design Method ◽  
Heat Sources ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Air Conditioning System ◽  
Actual Measurement ◽  
Heat Pump System ◽  
Ground Source

For the air conditioning system of a modern building, the paper proposes a design method of composite cold and heat sources system based on the ground source heat pump. The author describes the design principle of this system, the design of ground heat exchanger system and the control of soil heat pump system etc. Through the actual measurement, this design greatly reduces power consumption and can be used as references for future applications.

Study on Application of Ground-Source Heat Pump Air Conditioning System in Hohhot

2011 ◽  
Vol 282-283 ◽  
pp. 379-383
Author(s):  
Ling Li He ◽  
Shu Feng Yang ◽  
Ye Fei Bai
Keyword(s):  
Heat Pump ◽  
Air Conditioning ◽  
New Technology ◽  
Ground Source Heat Pump ◽  
System Operation ◽  
Air Conditioning System ◽  
Air Conditioners ◽  
Ground Source ◽  
Cold Area ◽  
Inner Mongolia Autonomous Region

The technology of ground-source heat pump is a revolutionary new technology emerging in the field of central air conditioners for buildings in China. Its application in Hohhot grew continuously in recent years. Based on the demonstration project of general office building of the Development & Reform Commission, Inner Mongolia Autonomous Region, this paper studies the application of ground-source heat pump air conditioning system with supporting heat source in northern cold area, analyzing the energy consumption of system operation, presenting some problems in the operation and solutions thereof, and concluding that the ground-source heat pump air conditioning system is feasible in Hohhot.

Design and Performance of a Constant Temperature and Humidity Air-Conditioning System Driven by a Ground Source Heat Pump in Summer

2010 ◽  
Vol 2 (1) ◽  
Author(s):  
X. Yu ◽  
X. Q. Zhai ◽  
R. Z. Wang
Keyword(s):  
Heat Pump ◽  
Constant Temperature ◽  
Air Conditioning ◽  
Weather Condition ◽  
Coefficient Of Performance ◽  
Heat Extraction ◽  
Ground Source Heat Pump ◽  
Air Conditioning System ◽  
Ground Source ◽  
Temperature And Humidity

A constant temperature and humidity air-conditioning system driven by a ground source heat pump was designed and constructed in an archives building in Shanghai. The system consists of a water-to-water heat pump and 280 boreholes with 80 m in depth. During the operation in summer, the heat extraction from the condenser of the heat pump was divided: Part was rejected to the soil, while another was used to reheat the air in air handling units (AHUs). According to the experimental results under a typical summer weather condition of Shanghai, the average coefficient of performance of the heat pump was 5.4. The average indoor temperature and relative humidity of the archives house were 22.8°C and 46.6%, respectively. Since part of the heat extraction from the condenser was used to reheat the air in AHUs, the heat rejected to the soil was reduced by 23%, which was helpful for the earth energy conservation. According to the theoretical analysis, the distance between two boreholes is suggested to be 4–5 m. The deepness of the boreholes is suggested to be 80–100 m in Shanghai.

Design of Ground Source Heat Pump Air Conditioning System for the Office and the Restaurant

2013 ◽  
Vol 732-733 ◽  
pp. 585-588
Author(s):  
Ke Wang Huang
Keyword(s):  
Economic Analysis ◽  
Heat Pump ◽  
Air Conditioning ◽  
Office Building ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Air Conditioning System ◽  
Heat Pump System ◽  
Ground Source

By comparing the three kinds of design of air conditioning system, and economic analysis, ground source heat pump system is selected to design the multi-storey office building and multilayer restaurant selection.

Sign in / Sign up

Export Citation Format

Share Document