A Review of the Advancements in Geothermal Heating and Cooling System

2017 ◽  
Vol 9 (1) ◽  
pp. 105
Author(s):  
Nimish Dhepe ◽  
Raahul Krishna
Keyword(s):  
Geothermal Energy ◽  
Fossil Fuels ◽  
Cooling System ◽  
Electricity Consumption ◽  
Operating Costs ◽  
Space Heating ◽  
Energy Technology ◽  
Geothermal Heating ◽  
Heating And Cooling ◽  
Increasing Demand

The increasing demand for energy and the depleting fossil fuels have fuelled explorations in new frontiers of Renewable Energy Technology. Geothermal Heating and Cooling is a new advancement in HVAC industry of India. It uses earth’s heat for space heating and cooling with the use of Heat Pump systems, saving up to 51% electricity consumption in HVAC, and reduced CO2 emissions. The main prospects of Geothermal Energy are longer equipment life and lower operating costs. This paper reviews the recent advancements in Geothermal Heating and Cooling System.

scholarly journals Energy consumption and modelling of the climate control system in the electric vehicle

2018 ◽  
Vol 37 (1) ◽  
pp. 519-543 ◽  
Author(s):  
Aisling Doyle ◽  
Tariq Muneer
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Electric Vehicle ◽  
Waste Heat ◽  
Cooling System ◽  
Weather Conditions ◽  
Mean Bias Error ◽  
Space Heating ◽  
Climate Control ◽  
Heating And Cooling

With the introduction of electric vehicles in the automobile market, limited information is available on how the battery’s energy consumption is distributed. This paper focuses on the energy consumption of the vehicle when the heating and cooling system is in operation. On average, 18 and 14% for the battery’s energy capacity is allocated to heating and cooling requirements, respectively. The conventional internal combustion engine vehicle uses waste heat from its engine to provide for passenger thermal requirements at no cost to the vehicle’s propulsion energy demands. However, the electric vehicle cannot avail of this luxury to recycle waste heat. In order to reduce the energy consumed by the climate control system, an analysis of the temperature profile of a vehicle’s cabin space under various weather conditions is required. The present study presents a temperature predicting algorithm to predict temperature under various weather conditions. Previous studies have limited consideration to the fluctuation of solar radiation space heating to a vehicle’s cabin space. This model predicts solar space heating with a mean bias error and root mean square error of 0.26 and 0.57°C, respectively. This temperature predicting model can potentially be developed with further research to predict the energy required by the vehicle’s primary lithium-ion battery to heat and cool the vehicle’s cabin space. Thus, this model may be used in a route planning application to reduce range anxiety when drivers undertake a journey under various ambient weather conditions while optimising the energy consumption of the electric vehicle.

Numerical investigation of the performance of geothermal energy piles under different soil moisture conditions

2020 ◽  
Author(s):  
Abubakar Kawuwa Sani ◽  
Rao Martand Singh
Keyword(s):  
Pore Water ◽  
Geothermal Energy ◽  
Heat Energy ◽  
Space Heating ◽  
Water Volume ◽  
Low Grade ◽  
Pump System ◽  
Carrier Fluid ◽  
Heat Pump System ◽  
Heating And Cooling

<p>The use of foundation structures (piles) coupled to a heat pump system, commonly referred to as geothermal energy pile (GEP) system, provides a renewable energy solution of achieving space heating and cooling in buildings; whilst also being utilised for the structural stability of the overlying structures. The system operates by exchanging the low-grade heat energy within the shallow earth surface with the building, via the circulation of heat carrier fluid enclosed in a high-density polyethylene plastic pipes. In summer, heat energy is extracted from the building and transferred into the ground to achieve space cooling. While in winter, the ground heat energy is harnessed and transferred to the building to achieve sustainable space heating. This paper investigates the thermal performance of the GEP system under the effects of factors such as initial soil pore water content and ground water flow.</p><p>The study utilises coupled thermo-hydraulic finite element modelling and analyses to achieve the aim of this study. It was observed that the initial pore water volume and groundwater flow are very significant factors that determine the amount of heat energy that can be harnessed using the system.</p><p> </p>

scholarly journals Utilising Unused Energy Resources for Sustainable Heating and Cooling System in Buildings: A Case Study of Geothermal Energy and Water Sources in a University

Energies ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1836 ◽  
Author(s):  
Kwon Park ◽  
Seiyong Kim
Keyword(s):  
Geothermal Energy ◽  
Nuclear Power ◽  
Energy Savings ◽  
High Efficiency ◽  
Cooling System ◽  
Hot Water ◽  
Energy Resources ◽  
Heating And Cooling ◽  
Actual Use

Recently, Korea has become increasingly interested in unused, but possibly useful energy resources, due to the world-wide controversy over nuclear power and limitations in renewable energy production. Among these unused resources, the water that is produced in our surroundings is available as a potential energy source for heating, cooling and domestic hot water. This water is relatively stable on the supply side, available as a high-efficiency source in all seasons, and is continuously replenished without polluting the environment. This paper analyses the energy savings generated based on the actual use of a sustainable heating and cooling system that operates using the water escaping from a nearby building. The results indicate the value of protecting the environment as well as reducing energy consumption and associated costs.

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