scholarly journals Experimental data acquisition and analysis of an underground thermal storage medium

2021 ◽  
Author(s):  
Alejandro Gonzalez-Ferras
Keyword(s):  
Experimental Data ◽  
Energy Consumption ◽  
Heat Pump ◽  
Fossil Fuel ◽  
Hvac Systems ◽  
Ground Source Heat Pump ◽  
Storage Medium ◽  
Fossil Fuel Consumption ◽  
Ground Source ◽  
Source Sink

A ground source heat pump (GSHP) is a system that uses the ground as a heat source/sink to provide heating/cooling to a conditioned space. During the winter, a GSHP uses a heat pump cycle to move heat from the ground into a space in order to heat it In the summer, the space is cooled as heat is pumped out of the space and back into the ground GSHPs are a sustainable alternative to conventional HVAC systems because they do not rely on direct fossil fuel consumption, and they are highly efficient as they move heat rather than generate it In addition, the temperature of the ground remains constant throughout the year, resulting in a greater thermal efficiency, and therefore less energy consumption

scholarly journals Experimental data acquisition and analysis of an underground thermal storage medium

2021 ◽  
Author(s):  
Alejandro Gonzalez-Ferras
Keyword(s):  
Experimental Data ◽  
Energy Consumption ◽  
Heat Pump ◽  
Fossil Fuel ◽  
Hvac Systems ◽  
Ground Source Heat Pump ◽  
Storage Medium ◽  
Fossil Fuel Consumption ◽  
Ground Source ◽  
Source Sink

A ground source heat pump (GSHP) is a system that uses the ground as a heat source/sink to provide heating/cooling to a conditioned space. During the winter, a GSHP uses a heat pump cycle to move heat from the ground into a space in order to heat it In the summer, the space is cooled as heat is pumped out of the space and back into the ground GSHPs are a sustainable alternative to conventional HVAC systems because they do not rely on direct fossil fuel consumption, and they are highly efficient as they move heat rather than generate it In addition, the temperature of the ground remains constant throughout the year, resulting in a greater thermal efficiency, and therefore less energy consumption

Research on the Experimental Platform of Ground Source Heat Pump

2013 ◽  
Vol 838-841 ◽  
pp. 1944-1948
Author(s):  
Zhao Kang Xu ◽  
Dao Lai Cheng ◽  
Bo Wang
Keyword(s):  
Energy Consumption ◽  
Heat Pump ◽  
Research Result ◽  
Ground Source Heat Pump ◽  
Experimental Platform ◽  
Environmental Friendly ◽  
Ground Source ◽  
Consumption Data ◽  
The Relationship ◽  
Multiple Conditions

The ground source heat pump technology has been maturing. However, related project designs are mostly following intuitive experience data, and are lack of the relationship between qualification in theory and quantitation in practice. To address this issue, this platform is devised for experimental research. Using this experimental platform, one can adjust for multiple conditions in one season, continuously record energy consumption data, and determine which mode has the best effect and lower energy consumption. Based on the experimental data, the analysis and research result can be referred by practical devising of the projects, and establish the relationship between qualification in theory and quantitation in practice, making the ground source heat pump be more energy-saving, economical and environmental friendly.

Research on the Practical Effect of Green Technology

2014 ◽  
Vol 584-586 ◽  
pp. 2559-2563
Author(s):  
Rui Huang ◽  
Yu Yun Li ◽  
Yi Peng Fan
Keyword(s):  
Energy Consumption ◽  
Heat Pump ◽  
Carbon Dioxide Emissions ◽  
Green Building ◽  
Building Design ◽  
Green Technology ◽  
Ground Source Heat Pump ◽  
Evaluation Standard ◽  
Photovoltaic Power ◽  
Ground Source

An architecture that has obtained a three-star green building design identity certificate was taken as an example in my thesis. We analyzed the data of ground source heat pump, photovoltaic power generation and energy consumption monitoring system in this project. Based On actual usage of the three green passive technologies, we find some problems and get some conclusion. System efficiency of ground source heat pump meet requirements of the renewable energy construction application engineering evaluation standard GB-T 50801-2013,and at the same time satisfy the requirements of the green building evaluation standard GB 50378-2006. Photovoltaic power generates 350400 kWh per year and reduces carbon dioxide emissions by 346.9 tons. But it is lower than the theoretical value by 31%.The data Energy consumption monitoring platform is higher than the electricity supply bureau by 12.68% .The data of Sub-item measured close to the calculated value. The error is less than by 3%.

Evaluation of Ground Source Heat Pump Energy, Demand, and Greenhouse Potential in Colorado Residential Buildings

2010 ◽  
Author(s):  
Daniel Studer ◽  
Moncef Krarti
Keyword(s):  
Heat Pump ◽  
Energy Demand ◽  
Residential Buildings ◽  
Pump Energy ◽  
Hvac Systems ◽  
Heat Pumps ◽  
Ground Source Heat Pump ◽  
Ground Source Heat Pumps ◽  
Vertical Well ◽  
Ground Source

This paper summarizes the results of a detailed energy analysis carried out for a typical Colorado residence using three different HVAC systems for 10 distinct locations in Colorado. The HVAC systems considered in the analysis include: • 78% efficient furnace with a 13 SEER air conditioner; • Vertical well ground source heat pump with a heating COP of 3.5 and a cooling EER of 17.1; • Slinky ground source heat pump with a heating COP of 3.5 and a cooling EER of 17.1. The results of the analysis indicate that relative to the conventional systems, ground source heat pumps (GSHPs) offer several benefits including lower annual energy costs, electrical peak demand, and carbon emissions. However, GSHPs use more electrical energy use. Specifically, it was found that relative to a 78 AFUE furnace / 13 SEER AC system, in all locations both GSHPs, vertical well and slinky, show on average a 41.2% increase in electricity use, a 10% decrease in energy cost, a 4.5% decrease in CO2 emissions, and a 16.8% average decrease in peak summer electric demand.

Analysis of Large-Scale Ground Source Heat Pump Systems for Residential Heating and Cooling in Austin, TX

2011 ◽  
Author(s):  
John R. Fyffe ◽  
Mary E. Clayton ◽  
Courtney E. Grosvenor ◽  
Michael E. Webber
Keyword(s):  
Energy Consumption ◽  
Heat Pump ◽  
Large Scale ◽  
Tax Incentives ◽  
Air Emissions ◽  
Energy Costs ◽  
Ground Source Heat Pump ◽  
Heating And Cooling ◽  
Ground Source ◽  
Over Time

This paper shares the results of an analysis of the energetic, emissions and economic balance of a simulated large-scale (multi-home) ground-source heat pump (GSHP) system in Austin, TX for heating and cooling. In contrast with traditional AC units and furnaces that use air outside of the house as a heat sink or source, GSHP systems use a ground loop heat exchanger to transfer heat to and from the soil where temperatures stay relatively constant throughout the year. GSHP systems operate more efficiently due to their use of the ground as a heat sink or source, whereas traditional AC units use the outside air. Consequently, GSHP systems typically use less energy than traditional HVAC units, but high capital costs have inhibited their widespread use. The monthly and annual energy costs for a home with a traditional AC unit-furnace are compared to a home with a GSHP system using hourly energy consumption data. The GSHP system modeled for the energy efficient home uses less energy (8.2 MMBtu) throughout the year compared to an efficient AC unit installed on the same home. Energy costs are lower using both the Austin Energy current rate schedule and for a proposed alternative schedule. Additionally, the GSHP system produces a net reduction in harmful emissions. Furthermore, GSHP systems reduce peak demand during the energy-intensive summer months, when air emissions are of greater concern. The installation costs for a large-scale residential GSHP system used in this research were based on interviews, current industry standards, and available pricing data. The analysis includes a sample case study of the cost of the GSHP system included with a home mortgage using a net monthly payment method and includes electricity price increases over time and federal tax incentives. If installed on a large scale, assuming best-case pricing with current federal tax incentives, the GSHP system case is $17 less per month than the traditional HVAC case. Federal tax incentives and high natural gas prices were found to make savings more significant for the GSHP system over time. Additionally, capital cost variability had a greater effect on savings than changes in electricity costs. Based on these analyses, large-scale GSHP systems are considered an economically feasible alternative to traditional HVAC units that will reduce energy consumption and air emissions.

Numerical Simulation of Solar Ground-Source Heat Pump with Latent Heat Storage

2010 ◽  
Vol 129-131 ◽  
pp. 1069-1073 ◽  
Author(s):  
Fang Wang ◽  
Zhi Long Liu ◽  
Zhong Jian Li ◽  
Mao Yu Zheng
Keyword(s):  
Experimental Data ◽  
Phase Change ◽  
Latent Heat ◽  
Heat Pump ◽  
Heat Storage ◽  
Numerical Results ◽  
Outlet Temperature ◽  
Ground Source Heat Pump ◽  
Latent Heat Storage ◽  
Ground Source

Solar ground-source heat pump (SGSHP) system is unsteady when used to heating. Latent heat storage tank (LHST) was used appropriately in which phase change material (PCM) - CaCl2•6H2O was encapsulated in plastic kegs setting on the serpentine coil. PCM which was as controlling unit of the phase change heat transfer model were solved numerically by an enthalpy-based finite differences method and was validated by experimental data. In order to reflect the effect of the system, two days were chosen to compare the numerical results with experimental data. Inlet and outlet temperature of the water in the LHST, temperature of PCM and storage & emission heat of LHST were measured. The trends of the variation of numerical results and experimental data were in close agreement. Numerical results can reflect the operation mode of the system very well.

Research on the Application of Ground Source Heat Pump Technology in Timber Structure

2013 ◽  
Vol 438-439 ◽  
pp. 1998-2001
Author(s):  
Zhi Hui Bian ◽  
Tie Cheng Wang ◽  
Shi Yong Zhao ◽  
Xian Fa Guo
Keyword(s):  
Energy Consumption ◽  
Heat Pump ◽  
Renewable Energy Sources ◽  
Timber Structure ◽  
Ground Source Heat Pump ◽  
Low Carbon ◽  
Resource Saving ◽  
Wooden Structure ◽  
Ground Source ◽  
Chinese Canadian

Ground source heat pump technology is a new type technology of superficially geothermal utilization. By taking Chinese-Canadian cooperation in the energy-saving low-carbon environmental demonstration housing project for example, this paper is to introduce the low-ground heat used in the timber structure. Through analysis of the energy consumption on the integration technology for wooden structure and ground source heat pump, and compared with conventional energy on energy consumption, validated applying renewable energy sources on modern wooden structure will produce significant benefits on economic and environmental, which possesses significant role in promoting that creating a resource-saving and environment-friendly society.

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