scholarly journals Optimal Power Consumption in a Central Heating System with Geothermal Heat Pump

2011 ◽  
Vol 44 (1) ◽  
pp. 3102-3107 ◽  
Author(s):  
F. Tahersima ◽  
J. Stoustrup ◽  
H. Rasmussen
Keyword(s):  
Power Consumption ◽  
Heat Pump ◽  
Heating System ◽  
Geothermal Heat ◽  
Central Heating ◽  
Optimal Power ◽  
Geothermal Heat Pump

scholarly journals The thermal behavior of a novel wall radiator panel coupled with horizontal ground source heat pump heating system: improve indoor environment to reduce the airborne transmission of infectious diseases

2020 ◽  
Vol 5 ◽  
pp. 11
Author(s):  
Sabrin Korichi ◽  
Bachir Bouchekima ◽  
Nabiha Naili ◽  
Messaouda Azzouzi
Keyword(s):  
Infectious Diseases ◽  
Thermal Comfort ◽  
Heat Pump ◽  
Heating System ◽  
The Novel ◽  
Ground Source Heat Pump ◽  
Radiation Heating ◽  
Geothermal Heat ◽  
Ground Source ◽  
Geothermal Heat Pump

Motivated by the rapid spread of the novel pandemic disease (COVID-19) that swept the most countries in the world, a new radiation heating system consists of wall radiator panel system connected to a reversible geothermal heat pump (GHP) coupled with horizontal ground heat exchanger (HGHX) was proposed as fast and permanent solution to the risks of the dispersion of airborne infectious diseases in air-conditioned enclosed spaces. An experimental system was installed and tested in the laboratory of thermal process of Research and Technology Center of Energy (CRTEn), Tunisia, in order to achieve the two main goals of this work: developing a new radiation heating system with quick and inexpensive implementation while ensuring high efficiency and environment-friendly performance for the entire system. The results obtained show that it is feasible to use the novel RPHs as heat rejecter of the horizontal ground source heat pump system (HGSHPs) for heating buildings with limited surface land areas epically those located in the Mediterranean regions such as Tunisia, the average performance coefficients of the geothermal heat pump COPhp and the overall system COPsys are found to be 6.3 and 3, respectively. The thermal comfort analysis indicates that there is only a small vertical temperature fluctuation in the test room that would not produce any negative effect on thermal comfort.

Comparing the Energetic and Exergetic Performances of a Building Heated by Solar Energy and Ground-Source (Geothermal) Heat Pump

2011 ◽  
Vol 347-353 ◽  
pp. 1801-1805
Author(s):  
Arif Hepbasli ◽  
Mustafa Tolga Balta ◽  
Zeyad Alsuhaibani
Keyword(s):  
Heat Pump ◽  
Heating System ◽  
Building Envelope ◽  
Geothermal Heat ◽  
Pump System ◽  
Sustainability Index ◽  
Dead State ◽  
Ground Source ◽  
Energy And Exergy ◽  
Geothermal Heat Pump

In this study, we considered a building, which had a volume of 336 m3 and a floor area of 120 m2, with indoor and outdoor air temperatures of 20 oC and 0 oC, respectively. For heating this building, we selected two options, namely (i) a ground-source (geothermal) heat pump system (Case 1), and (ii) a solar collector heating system (Case 2). We employed both energy and exergy analysis methods to assess their performances and compare them through energy and exergy efficiencies and sustainability index. We also investigated energy and exergy flows for this building and illustrated from the primary energy transformation through the heat production system and a distribution system to a heating system, and from there, via the indoor air, across the building envelope to the surrounding air. We calculated that the total exergy efficiencies for Cases 1 and 2 were 4.7%, and 26.1% while sustainability index values for both cases were 1.049 and 1.353 at a reference (dead) state temperature of 0 oC, respectively.

scholarly journals Hybrid Solar Geothermal Heat Pump System Model Demonstration Study

2022 ◽  
Vol 9 ◽  
Author(s):  
Yu-Jin Kim ◽  
Libing Yang ◽  
Evgueniy Entchev ◽  
Soolyeon Cho ◽  
Eun-Chul Kang ◽  
...  
Keyword(s):  
Power Consumption ◽  
Ambient Temperature ◽  
Heat Pump ◽  
Geothermal Heat ◽  
Pump System ◽  
Heat Pump System ◽  
Source Temperature ◽  
Heating And Cooling ◽  
Geothermal Heat Pump ◽  
Polygeneration System

In this paper, the development and demonstration of a hybrid solar geothermal heat pump polygeneration system is presented. The poly-generation system has been designed, modeled, and simulated in TRNSYS software environment. Its performance was assessed followed by installation and demonstration at a demo site in Cheongju, Korea. The space heating and cooling load of the building is 13.8 kW in heating mode at an ambient temperature of −10.3°C and 10.6 kW in cooling mode at an ambient temperature of 32.3°C. The simulation data were compared with the field demo data using ISO 13256. The results showed that the model data compare well with the demo data both in heating and cooling modes of operation. At a source temperature of 16.7°C, the heat pump lab performance data-based COPc shows 9.9, while demonstration COPc shows 10.3, thus, representing 4.3% relative error. The heat pump source temperature decreased by 4.0°C from 20.9°C to 16.9°C due to ground heat exchanger coupling and resulted in a COPc increase by 13.3% from 8.5 to 9.8. When compared at the design conditions (outside temperature of 32.3°C), the TRSNYS model overestimated the demonstration site data by 12%, 9.3 vs. 8.1 kW with power consumption of 3.1 vs. 2.2 kW. The hybrid polygeneration system power consumption decreased by 1.2 kW when ambient temperature decreased from 35°C to 25°C.

517 Geothermal Heat Pump Heating System : Analysis of energy balances

2009 ◽  
Vol 2009.48 (0) ◽  
pp. 169-170
Author(s):  
Tomohiro YOSHIKAWA ◽  
Masahumi SASAKI ◽  
Noboru ENDOH ◽  
Ko WATANABE
Keyword(s):  
Heat Pump ◽  
System Analysis ◽  
Heating System ◽  
Geothermal Heat ◽  
Geothermal Heat Pump ◽  
Energy Balances

Some Villas Solar Heating and Air Conditioning System Design of Double-Source Heat Pump Programmer

2012 ◽  
Vol 512-515 ◽  
pp. 168-171
Author(s):  
Wei Yu ◽  
Feng Chen ◽  
Hong Bo Li
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Air Conditioning ◽  
Heating System ◽  
Time Sharing ◽  
Geothermal Heat ◽  
Air Conditioning System ◽  
Geothermal Heat Pump ◽  
Air Conditioning Systems ◽  
Building Heat

This article on a villas in Langfang city, Hebei province, heating and air conditioning systems. According to the owners of the double requirement of energy saving and environmental protection to owners selection of solar energy and geothermal heat pump heating system combined. To better achieve heating and air conditioning energy saving operation of villas, the system can be run by optimizing the control scheme, time-sharing partition building heat adjustment.

scholarly journals Effect of a Heating System Using a Ground Source Geothermal Heat Pump on Production Performance, Energy-Saving and Housing Environment of Pigs

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2075
Author(s):  
Hong Seok Mun ◽  
Muhammad Ammar Dilawar ◽  
Myeong Gil Jeong ◽  
Dhanushka Rathnayake ◽  
Jun Sung Won ◽  
...  
Keyword(s):  
Heat Pump ◽  
Heating System ◽  
Production Performance ◽  
Conventional Heating ◽  
Geothermal System ◽  
Outlet Temperature ◽  
Geothermal Heat ◽  
Housing Environment ◽  
Ground Source ◽  
Geothermal Heat Pump

This study examined the effects of a heating system using a ground source geothermal heat pump (GHP). A GHP was installed in a pig house, and a comparative analysis was performed between the GHP and the control (conventional heating system) in terms of the production performance, housing environment, noxious gas emissions, electricity consumption, and economics. The geothermal system performance index, such as the coefficient of performance (COP), inlet, and outlet temperature, were also evaluated. The outflow temperature during each period (weaning, growing, and finishing) was significantly higher than the inflow temperature in all three components of the GHP system. Similarly, the average internal temperature of the GHP-connected pig house was increased (p < 0.05) during each period. The carbon dioxide (CO2) concentration, electricity usage, and cost of electricity during the 16-week experimental period were reduced significantly in the GHP system relative to the control. The concentrations of ammonia (NH3) during the growing and finishing period and the concentrations of formaldehyde during the weaning phase were also lower in the GHP-installed pig house (p < 0.05). These results indicate that the GHP system can be used as an environmentally friendly renewable energy source in pig houses for sustainable pig production without harming the growth performance.

Evaluation of Water to Water Heat Pump Model in Energy Plus Using Measurement Data

2015 ◽  
Author(s):  
Saif Abdulameer ◽  
Junghyon Mun ◽  
Yong Tao
Keyword(s):  
Power Consumption ◽  
Heat Pump ◽  
Measurement Data ◽  
Geothermal Heat ◽  
Heating And Cooling ◽  
Energy Plus ◽  
Geothermal Heat Pump ◽  
Different Seasons ◽  
Actual Environment ◽  
Long Operation

The purpose of this work is to find a protocol and a model that describes the behavior of a geothermal heat pump in an actual environment in order to determine the actual power consumption and capacity of the device. This paper focuses on the use of field measured data to derive the performance of the heat pump. The equation fit model is used as it does not demand very detailed input. The model employs the condenser and evaporator inlet temperatures as input data. The heat pump provides heating and cooling for the living and working area of the zero energy lab which is 1200 sq ft building and designed to intimate a small residence., and both cooling and heating were investigated. A model was generated for each case. Long operation periods were sought for model generating so two experiments were set in different seasons to collect the data for each mode and each experiment lasted for 10 days. Model results showed an error range of ±10% for the unit capacity and power consumption.

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