Optimization and Energy Efficiency Research of a Large Reclaimed Water Source Heat Pump System

2013 ◽  
pp. 485-496
Author(s):  
Ziping Zhang ◽  
Fanghui Du
Keyword(s):  
Energy Efficiency ◽  
Heat Pump ◽  
Reclaimed Water ◽  
Water Source ◽  
Pump System ◽  
Heat Pump System

Research on Composite System of Solar Energy Reclaimed Water Heat Pump and Phase Change Energy Storage

2014 ◽  
Vol 521 ◽  
pp. 56-59
Author(s):  
Hui Xing Li ◽  
Peng Cheng ◽  
Guo Hui Feng ◽  
Ran Zhang
Keyword(s):  
Heat Pump ◽  
Operating Cost ◽  
Reclaimed Water ◽  
Water Source ◽  
Heating System ◽  
Hot Water ◽  
Water Heating ◽  
Pump System ◽  
Heat Pump System ◽  
Important Approach

New energy development and utilization is an important approach to solve the problem of energy shortage,a new type of composite heating system is proposed in this study. It expounds the research ideas, the technical principle and operation plan of the system. Through a comparative analysis of the performance coefficient of composite heating system, reclaimed water source heat pump system and solar hot water heating system, it Comes to the conclusions that the composite heating system can not only reduce the operating cost but also improve the running performance of reclaimed water source heat pump and reduce the heat loss of solar hot water heating system.

Application Research of Reclaimed Water Source Heat Pump Techniques in Beijing

2013 ◽  
Vol 860-863 ◽  
pp. 724-727
Author(s):  
Yuan Yu ◽  
Jia Zheng ◽  
Hao Yu
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Reclaimed Water ◽  
Water Source ◽  
Heat Energy ◽  
Energy Utilization ◽  
Application Research ◽  
Pump System ◽  
Heat Pump System ◽  
Transportation Distance

This paper describes in detail the current situation of reclaimed water energy utilization in Beijing. There are three key facters have been intruduced in the dividing suitable areas of reclaimed water heat energy in Beijing, which are taking distance, heat transportation distance of reclaimed water and adaptability of heat pump system and building. The research will provides the scientific reference for the users and other related departments of application of reclaimed water source heat pump system, which will be helpful in popularizing the GSHP and giving full play to environmental protection and energy saving advantages of reclaimed water heat energy.

scholarly journals Optimization and Thermoeconomics Research of a Large Reclaimed Water Source Heat Pump System

2013 ◽  
Vol 2013 ◽  
pp. 1-9
Author(s):  
Zi-ping Zhang ◽  
Fang-hui Du
Keyword(s):  
Heat Pump ◽  
Residential Buildings ◽  
Reclaimed Water ◽  
Water Source ◽  
Heating System ◽  
Pump System ◽  
Heat Pump System ◽  
Heating Capacity ◽  
Two Stages ◽  
Economics Analysis

This work describes a large reclaimed water source heat pump system (RWSHPS) and elaborates on the composition of the system and its design principles. According to the characteristics of the reclaimed water and taking into account the initial investment, the project is divided into two stages: the first stage adopts distributed heat pump heating system and the second adopts the combination of centralized and decentralized systems. We analyze the heating capacity of the RWSHPS, when the phase II project is completed, the system can provide hydronic heating water with the supply and return water temperature of 55°C/15°C and meet the hydronic heating demand of 8 million square meters of residential buildings. We make a thermal economics analysis by using Thermal Economics theory on RWSHPS and gas boiler system, it is known that the RWSHPS has more advantages, compared with the gas boiler heating system; both its thermal efficiency and economic efficiency are relatively high. It provides a reference for future applications of the RWSHPS.

Research on Influence of Water Source Heat Pump System to Groundwater - A Case Study of New Campus of Taiyuan University

2011 ◽  
Vol 356-360 ◽  
pp. 2329-2332
Author(s):  
Shu Qin Gao ◽  
Yu Ming Feng
Keyword(s):  
Heat Pump ◽  
Water Source ◽  
Pump System ◽  
Air Conditioning System ◽  
Heat Pump System ◽  
Protection Method ◽  
Groundwater Environment ◽  
New Energy ◽  
Influence Of Water

Water source heat pump system(WSHPS) is a new energy saving and environmentally air conditioning system, its degree of influence to groundwater related to the feasibility of construction of WSHPS and development & protection of regional groundwater. After introducing WSHPS, this paper analyzed the influence of WSHPS to groundwater, brought up the protection method to reduce influence. At last, a case study of new campus of Taiyuan university was carried out. The results showed that running of WSHPS won’t bring up disadvantage to groundwater environment.

scholarly journals Field Test on Performance of an Air Source Heat Pump System Using Novel Gravity-Driven Radiators as Indoor Heating Terminal

2021 ◽  
Vol 9 ◽  
Author(s):  
Jie Jia ◽  
Xuan Zhou ◽  
Wei Feng ◽  
Yuanda Cheng ◽  
Qi Tian ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Heat Pump ◽  
Field Test ◽  
Thermal Response ◽  
Heat Output ◽  
Pump System ◽  
Heat Pump System ◽  
Air Source Heat Pump ◽  
Gravity Driven ◽  
Indoor Comfort

The simultaneous need for energy efficiency and indoor comfort may not be met by existing air source heat pump (ASHP) technology. The novelty of this study lies in the use of a new gravity-driven radiator as the indoor heating terminal of ASHPs, aiming to provide an acceptable indoor comfort with improved energy efficiency. To confirm and quantify the performance improvement due to the proposed system retrofit, a field test was conducted to examine the system performance under real conditions. In the tests, measurements were made on the refrigerant- and air-side of the system to characterize its operational characteristics. Results showed that the proposed radiator has a rapid thermal response, which ensures a fast heat output from the system. The proposed system can create a stable and uniform indoor environment with a measured air diffusion performance index of 80%. The energy efficiency of the proposed system was also assessed based on the test data. It was found that the system’s first law efficiency is 42.5% higher than the hydraulic-based ASHP system. In terms of the second law efficiency, the compressor contributes the most to the overall system exergy loss. The exergy efficiency of the proposed system increases with the outdoor temperature and varies between 35.02 and 38.93% in the test period. The research results and the analysis methodology reported in this study will be useful for promoting the technology in search of energy efficiency improvement in residential and commercial buildings.

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