An all-in-one machine coupled with a horizontal ground heat exchanger for the air-conditioning of a residential building

2021 ◽  
pp. 108558
Author(s):  
S. Bordignon ◽  
L. Carnieletto ◽  
A. Zarrella
Keyword(s):  
Heat Exchanger ◽  
Air Conditioning ◽  
Residential Building ◽  
Ground Heat Exchanger ◽  
One Machine

Thermal Foundation Benefits and Efficiency

2017 ◽  
Author(s):  
Youssef Aoun ◽  
Maya Kadi ◽  
Charbel Bou-Mosleh
Keyword(s):  
Thermal Conductivity ◽  
Heat Exchanger ◽  
Residential Building ◽  
Basic Operation ◽  
Ground Heat Exchanger ◽  
Current Application ◽  
Circulating Water ◽  
Cost Efficient ◽  
The Cost

In this paper, a novel type of ground heat exchanger for geothermal applications is introduced. This heat exchanger is installed in the foundations of a commercial and residential building that has piles and diaphragm walls. This dramatically reduces the cost of the ground heat exchanger and makes the application more cost efficient with a payback period of 1–2 years compared to 10 years with the conventional vertical loops. The system will be detailed and its basic operation will be explained. In addition, test results of an in-situ thermal test response of a loop that is already installed in a foundation of a building in Beirut, Lebanon will also be presented. This test allows the approximation of the thermal conductivity of the ground and the amount of heat that is absorbed and extracted from and to the ground. The preliminary tests have given very promising results, since the ground is water dense and has a high thermal conductivity which increases the heat transfer between our heat exchanger installed in the foundation and the ground. In addition, in the current application, and around the foundation, there exists a lot of circulating water. This renders the application more and more efficient since the ground temperature will not fluctuate in the next 10 years.

scholarly journals Geothermal Energy Use for the Additional Heat Supply of a Residential Building

2020 ◽  
Vol 28 (4) ◽  
pp. 15-22
Author(s):  
Oleksandra Kuzmenko ◽  
Kostiantyn Dikarev ◽  
Daniil Rodionov ◽  
Oleksandra Martysh ◽  
Anar Iskenderov ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Heat Exchangers ◽  
Heat Recovery ◽  
Energy Use ◽  
Residential Building ◽  
Ground Heat Exchanger ◽  
Ground Heat Exchangers ◽  
Recovery System ◽  
Heat Recovery System ◽  
Building Ventilation

AbstractTo ensure low-energy consumption in new generation energy-efficient houses, the technology of a ground heat exchanger with a heat recovery system is used almost everywhere. However, this technology has not been widely disseminated in Ukraine. The work is aimed at presenting insights from research on the combination of ground heat exchangers with a heat recovery system for building ventilation by analyzing the operational and techno-economic indicators obtained. Current studies permit revealing the optimal configuration of a ground heat exchanger with a heat recovery system for ventilation in a residential building in order to analyze the efficiency of ground heat exchangers with a heat recovery system for ventilation of a residential building in comparison with several conventional ventilation options to assess the main price/ performance ration of the process of constructing a ground heat exchanger with a heat recovery system and to determine the duration of the technological process, the labor-intensive characteristics, and the estimated cost of the technology.

scholarly journals Utilization of the horizontal ground heat exchanger in the heating and cooling system of a residential building

2016 ◽  
Vol 37 (1) ◽  
pp. 47-72 ◽  
Author(s):  
Małgorzata Hanuszkiewicz-Drapała ◽  
Tomasz Bury
Keyword(s):  
Heat Exchanger ◽  
Heat Source ◽  
Heat Pump ◽  
Cooling System ◽  
Electricity Consumption ◽  
Residential Building ◽  
Heat Fluxes ◽  
Winter Period ◽  
Ground Heat Exchanger ◽  
The Impact

AbstractThis paper presents the results of thermodynamic analyses of a system using a horizontal ground heat exchanger to cool a residential building in summer and heat it in the autumn-winter period. The main heating device is a vapour compression heat pump with the ground as the lower heat source. The aim of the analyses is to examine the impact of heat supply to the ground in the summer period, when the building is cooled, on the operation of the heating system equipped with a heat pump in the next heating season, including electricity consumption. The processes occurring in cooling and heating systems have an unsteady nature. The main results of the calculations are among others the time-dependent values of heat fluxes extracted from or transferred to the ground heat exchanger, the fluxes of heat generated by the heat pump and supplied to the heated building by an additional heat source, the parameters in characteristic points of the systems, the temperature distributions in the ground and the driving electricity consumption in the period under analysis. The paper presents results of analysis of cumulative primary energy consumption of the analyzed systems and cumulative emissions of harmful substances.

Analysis of Heat Pipe Heat Exchanger (HPHE) For Waste Heat Recovery from an Air Conditioning System

2007 ◽  
Vol 2 (3) ◽  
pp. 86-95
Author(s):  
R. Sudhakaran ◽  
◽  
V. Sella Durai ◽  
T. Kannan ◽  
P.S. Sivasakthievel ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Heat Pipe ◽  
Air Conditioning ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Air Conditioning System ◽  
Pipe Heat

scholarly journals Analysis of Heat Exchange Rate for Low-Depth Modular Ground Heat Exchanger through Real-Scale Experiment

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1893
Author(s):  
Kwonye Kim ◽  
Jaemin Kim ◽  
Yujin Nam ◽  
Euyjoon Lee ◽  
Eunchul Kang ◽  
...  
Keyword(s):  
Exchange Rate ◽  
Heat Exchanger ◽  
Heat Exchange ◽  
Heat Pump ◽  
Heat Extraction ◽  
Ground Heat Exchanger ◽  
Pump System ◽  
Heat Pump System ◽  
Scale Experiment ◽  
Real Scale

A ground source heat pump system is a high-performance technology used for maintaining a stable underground temperature all year-round. However, the high costs for installation, such as for boring and drilling, is a drawback that prevents the system to be rapidly introduced into the market. This study proposes a modular ground heat exchanger (GHX) that can compensate for the disadvantages (such as high-boring/drilling costs) of the conventional vertical GHX. Through a real-scale experiment, a modular GHX was manufactured and buried at a depth of 4 m below ground level; the heat exchange rate and the change in underground temperatures during the GHX operation were tracked and calculated. The average heat exchanges rate was 78.98 W/m and 88.83 W/m during heating and cooling periods, respectively; the underground temperature decreased by 1.2 °C during heat extraction and increased by 4.4 °C during heat emission, with the heat pump (HP) working. The study showed that the modular GHX is a cost-effective alternative to the vertical GHX; further research is needed for application to actual small buildings.

Sign in / Sign up

Export Citation Format

Share Document