Application of ground-heat-source water thermal-storage with a heat-pump cooling and heating system

2009 ◽  
Vol 224 (1) ◽  
pp. 73-78
Author(s):  
K B Lim ◽  
S H Lee ◽  
C H Lee
Keyword(s):  
Heat Source ◽  
Heat Pump ◽  
Thermal Storage ◽  
Heating System ◽  
Source Water

scholarly journals A Domestic Solar/Heat Pump Heating System Incorporating Latent and Stratified Thermal Storage

2008 ◽  
Author(s):  
Christoph Trinkl ◽  
Wilfried Zo¨rner ◽  
Vic Hanby
Keyword(s):  
Latent Heat ◽  
Heat Pump ◽  
Solar Collector ◽  
Energy Demand ◽  
Heat Storage ◽  
Thermal Storage ◽  
Heating System ◽  
System Control ◽  
Latent Heat Storage ◽  
Solar Heat

Both solar and heat pump heating systems are innovative technologies for sustaining ecological heat generation. They are gaining more and more importance due to the accelerating pace of climate change and the rising cost of limited fossil resources. Against this background, a heating system combining solar thermal collectors, heat pump, stratified thermal storage and water/ice latent heat storage has been investigated. The major advantages of the proposed solar/heat pump heating system are considered to be its flexible application (suitable for new and existing buildings because of acceptable space demand) as well as the improvement of solar fraction (extended solar collector utilisation time, enhanced collector efficiency), i.e. the reduction of electric energy demand for the heat pump. In order to investigate and optimise the heating system, a dynamic system simulation model was developed. On this basis, a fundamental control strategy was derived for the overall coordination of the heating system with particular regard to the performance of the two storage tanks. In a simulation study, a fundamental investigation of the heating system configuration was carried out and optimisation derived for the system control as well as the selection of components and their dimensioning. The influence of different parameters on the system performance was identified, where the collector area and the latent heat storage volume were found to be the predominant parameters for system dimensioning. For a modern one-family house, a solar collector area of 30m2 and a latent heat store volume of 12.5m3 are proposed. In this configuration, the heating system reaches a seasonal performance factor of 4.6, meaning that 78% of the building’s and users’ heat demand are delivered by solar energy. The results show that the solar/heat pump heating system can give an acceptable performance using up-to-date components in a state-of-the-art building.

A study on the design and analysis of a heat pump heating system using wastewater as a heat source

Solar Energy ◽  
2005 ◽  
Vol 78 (3) ◽  
pp. 427-440 ◽  
Author(s):  
N.C. Baek ◽  
U.C. Shin ◽  
J.H. Yoon
Keyword(s):  
Heat Source ◽  
Heat Pump ◽  
Heating System

The Combined Solar with a Dual Heat Source Heat Pump Applied in a Greenhouse Heating System - An Operation Optimization of Water Source Heat Pump

2014 ◽  
Vol 541-542 ◽  
pp. 942-948
Author(s):  
Xian Peng Sun ◽  
Zhi Rong Zou ◽  
Yue Zhang
Keyword(s):  
Heat Source ◽  
Heat Pump ◽  
Water Source ◽  
Heating System ◽  
Hot Water ◽  
Inlet Temperature ◽  
Pump System ◽  
Operation Optimization ◽  
Temperature Heat ◽  
The Impact

Based on the finite-time thermodynamic theory, an operation optimization, of water source heat pump in the combined solar with a dual heat source heat pump which is applied in a greenhouse heating system, is made. According to the ε-NTU method and entropy theory, heat exchange and balance equations are obtained. The function relationship between COP and the indoor temperature Tn, the ambient temperature Ta, low temperature heat source inlet temperature Tie and high temperature heat source inlet temperature Tic is also obtained. By means of programming, the impact of parameters on the COP and the way of regulating this water source heat pump system are presented in this article. The results show that: when a separate water source heat pump is running, by adjusting the hot water temperature and the match status of each indoor heating system, the energy-saving operation can be realized.

The Study of Heat Consumption Systems of Buildings with Heat Pump

2016 ◽  
Vol 856 ◽  
pp. 297-302 ◽  
Author(s):  
Anna Tsynaeva ◽  
Katerina Tsynaeva
Keyword(s):  
Heat Source ◽  
Heat Pump ◽  
Heating System ◽  
Climatic Conditions ◽  
Operating Conditions ◽  
Heat Consumption ◽  
Low Grade ◽  
Consumption System ◽  
Low Grade Heat

Systems of heat consumption of the building with heat pump that uses low-grade heat source are investigated. Effectiveness of heat consumption systems with heat pump is concluded effective for severe climatic conditions prevailing in Russia. Characteristics of heat consumption system with heat pump and the traditional heating system are compared. In this case the heat pump is used the warmth of the environment, that is why considered operating conditions for the autumn and spring. Low inertia of heat systems with heat pump compared to traditional ones during autumn and spring proved.

scholarly journals Analysis and Research on Energy-Saving Reconstruction of Building Heating System

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Yongqiang Liu ◽  
Zhanfang Huang
Keyword(s):  
Heat Source ◽  
Heat Pump ◽  
Original System ◽  
Water Source ◽  
Heating System ◽  
High Energy ◽  
Pipe Network ◽  
Pump System ◽  
Heat Pump System ◽  
Central Heating

A building heating system had high energy consumption and did not meet the requirements of environmental protection, so it was needed to be reformed. After recalculating the heat load, it was found that the heat source, pipe network specification, and radiator area of the original heating system were oversized. After comparing with a gas-fired boiler, the heat source was transformed into the water source heat pump system. The water supply temperature of the water source heat pump was lower than that of the boiler. Generally, it seemed necessary to increase the radiator area. However, after calculation and verification, when the supply and return water temperature was 65/58°C, the system operated continuously and the original pipe network and radiator could still ensure the indoor temperature of 16°C. The total cost of transformation was 11.5 million Chinese Yuan. After analyzing the operation data of the new system, the water source heat pump system could save 82.6% energy compared with the original system and 29.6% cost compared with the central heating system. The transformation is successful, and the experience is worth popularizing.

Experimental Investigation of Air-Source Heat Pump Heating System With a Novel Thermal Storage Refrigerant-Heated Panel

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Suola Shao ◽  
Huan Zhang ◽  
Shijun You ◽  
Yaran Wang
Keyword(s):  
Heat Pump ◽  
Air Temperature ◽  
Thermal Storage ◽  
Heating System ◽  
Economic Feasibility ◽  
Coefficient Of Performance ◽  
Total Annual Cost ◽  
Condensation Temperature ◽  
Outdoor Air ◽  
Air Source Heat Pump

Abstract In response to the triple crisis of energy–environment–economy (3Es), the air-source heat pump (ASHP) system is considered to be one of the most feasible candidates to upgrade the traditional high emission heating solutions. In this paper, a novel thermal storage refrigerant-heated panel (RHP) is proposed for the ASHP heating system. Experiments were conducted in a climate chamber to test the heating and defrosting performance of the system, the thermal performance of the RHP, the system energy efficiency, and the system economic feasibility. The results show that the heat flux of the RHP is as high as 625.5 W/m2 at a condensation temperature of 40 °C and an outdoor air temperature of −7 °C. Meanwhile, the system is demonstrated to be reliable and competitive with efficient thermal stability in heating conditions and comfortable indoor thermal in defrosting conditions. The coefficient of performance (COP) ranges from 2.2 to 4.0 when the outdoor air temperature changes from −12 °C to 7 °C in the tests. Meanwhile, the initial capital cost and the total annual cost of the proposed system are 430 USD and 203.1 USD, respectively, which is competitive in the distracted heating systems.

Sign in / Sign up

Export Citation Format

Share Document