Heating performance analysis of the direct sewage source heat pump heating system

2010 ◽  
Author(s):  
Jianfeng Qian
Keyword(s):  
Performance Analysis ◽  
Heat Pump ◽  
Heating System ◽  
Heating Performance ◽  
Sewage Source

Performance analysis and optimization of a solar-air source heat pump heating system in Tibet, China

2020 ◽  
Vol 220 ◽  
pp. 110084 ◽  
Author(s):  
Tianhe Long ◽  
Zhenyong Qiao ◽  
Meilin Wang ◽  
Yongcai Li ◽  
Jun Lu ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Heat Pump ◽  
Heating System ◽  
Air Source Heat Pump

Performance analysis of a CO2 heat pump water heating system under a daily change in a standardized demand

Energy ◽  
2010 ◽  
Vol 35 (2) ◽  
pp. 718-728 ◽  
Author(s):  
Ryohei Yokoyama ◽  
Tetsuya Wakui ◽  
Junya Kamakari ◽  
Kazuhisa Takemura
Keyword(s):  
Performance Analysis ◽  
Heat Pump ◽  
Heating System ◽  
Water Heating ◽  
Daily Change

Sustainability Study on GCHP Heating System in Severe Cold Area of China

2013 ◽  
Vol 411-414 ◽  
pp. 3084-3087
Author(s):  
Shu Zhang ◽  
Mao Yu Zheng
Keyword(s):  
Heat Pump ◽  
Thermal Load ◽  
Heating System ◽  
Coefficient Of Performance ◽  
Heating Effect ◽  
Pump System ◽  
Heat Pump System ◽  
Heating Performance ◽  
Long Time ◽  
Cold Area

In this paper, the mathematical models of a GCHP system and a Ground-couple heat pump system with air-soil thermal storage (GCHPASTS) were developed, and the 20-year performances of the two systems were simulated in severe cold area of china, respectively. The results show that the soil temperature declines gradually during the operation of a GCHP system, which leads to the decrease of the coefficient of performance (COP) and the heating effect of the heat pump year after year. On the contrary, the balance of ground thermal load can be realized during the operation of a GCHPASTS system, and the heating performance of heat pump is stable and efficient for long time. So, it can be proved that a GCHP system cant be used for heating alone, while a GCHPASTS system is feasibility.

Methodology for Optimizing the Heating Capacity of Heat-Source Equipments in Double-Energy Radiator Heating System

2012 ◽  
Vol 170-173 ◽  
pp. 2743-2746
Author(s):  
Feng Li ◽  
Zhe Tian ◽  
Qiang Fu ◽  
Qian Ru Li
Keyword(s):  
Heat Source ◽  
Operating Cost ◽  
Heating System ◽  
Heat Pumps ◽  
Heating Period ◽  
Heating Performance ◽  
Heating Capacity ◽  
Minimum Operating ◽  
Optimal Heating ◽  
Sewage Source

The double-energy heating system studied in this paper is consisted of centrifugal sewage-source heat pumps and gas boilers. As the grade and price of the two kinds of energy are different, the heating capacity of the heat-source equipments would have a directly impact on the energy consumption and operating cost of the system. In order to obtain the optimal heating capacity of the heat-source equipments, the calculation models on equipments utilized in this system are firstly established, and then different combination patterns of the heat-source equipments were analyzed on the basis of minimum operating cost, finally, the optimal heating capacity of the heat-source equipments and the heating performance factor (HPF) of the system in different outdoor temperatures were obtained, the results indicate the average HPF of the system in the heating period is 3.57. The method and results provide reference for scientific design of the double-energy heating system.

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