scholarly journals Research Status of Defrosting Technology of Air Source Heat Pump

2021 ◽  
Vol 267 ◽  
pp. 01031
Author(s):  
Cheng Kun ◽  
Liu Bingzhan ◽  
Li Guangpeng
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
High Efficiency ◽  
Building Energy ◽  
Development Trend ◽  
Irreversible Damage ◽  
Pump System ◽  
Heat Pump System ◽  
Existing Problems ◽  
Air Source Heat Pump

Air source heat pump has the characteristics of high efficiency, energy saving, green and pollution-free, and has been widely used in building energy saving projects. However, the frosting phenomenon of the air source heat pump evaporator during the heating operation in cold areas in winter will reduce the heat production of the system, affect the comfort experience, and even cause the system down or irreversible damage to the heat pump system when the frosting is serious. This paper summarizes the research of domestic and foreign scholars on air source heat pump defrosting, analyzes the existing problems of defrosting technology, and finally looks forward to the future development trend of air source heat pump defrosting research.

scholarly journals Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2811 ◽  
Author(s):  
Xiang Gou ◽  
Shian Liu ◽  
Yang Fu ◽  
Qiyan Zhang ◽  
Saima Iram ◽  
...  
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Coefficient Of Performance ◽  
Water Heater ◽  
Pump System ◽  
Heat Pump System ◽  
Air Source Heat Pump ◽  
Heat Pump Water Heater ◽  
Dual Source ◽  
Bath Water

A household dual source heat pump water heater is proposed to utilize the energy of wastewater and air heat in a bathroom. The heat pump system integrates a wastewater source heat pump (WSHP), air source heat pump (ASHP), and a preheater. This aims at energy saving through recovering the heat of wastewater and ventilation air during the bathing process. The experiment was conducted to verify the feasibility of a dual heat source heat pump water heater system in a bath unit. It is found that the system can achieve an average coefficient of performance (COP) of 4.80 and 4.38 with and without preheater, respectively. At a bath water temperature of 40 °C, a flow rate of 6 L/min, and a room temperature of 26.5 °C, the COP of system can reach 6.08, which shows a significantly promising method for energy saving in-house.

An Office Building Energy-Saving Design of Ground Source Heat Pump System

2013 ◽  
Vol 353-356 ◽  
pp. 3093-3096 ◽  
Author(s):  
Wei Yu ◽  
Chun Ying Zhu ◽  
Meng Hui Gao
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Building Energy ◽  
Office Building ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Air Conditioning System ◽  
Heat Pump System ◽  
Ground Source ◽  
Building Energy Saving

This article on heating and air conditioning system design of an office building in Langfang city, Hebei province. According to the owners of energy saving and environmental protection requirements and the actual situation, owners of ground source heat pump system. The design from the comprehensive analysis of both the initial investment and operating costs, to offer the choice of reference.

Application of Mine Water for Water-Source Heat Pump System

2013 ◽  
Vol 291-294 ◽  
pp. 1701-1707
Author(s):  
Hong Pu Du ◽  
Yuan Ming Dou ◽  
Cheng Ying Qi
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Mine Water ◽  
High Efficiency ◽  
New Technology ◽  
Water Source ◽  
Energy Utilization ◽  
Coal Consumption ◽  
Pump System ◽  
Heat Pump System

Mine water and mine return air is good for the renewable energy due to heat storage underground, and the recycling has been a new technology of the energy utilization in water source heat pump system. Utilizing the waster heat of coal mine is beneficial in reducing the coal consumption of winter heating boiler or even replacing it completely. Comprehensive analysis the research situation and the project example, this paper points out that the technical of mine water applied for water-source heat pump system is feasibility in the practical project and theory in view of advantages, like energy saving, environmental protection, high efficiency and short payback period, etc. Therefore, application of mine water for water-source heat pump system is a new advanced energy-saving technology.

Research on Energy Efficiency Evaluation Algorithm Based on Database System

2013 ◽  
Vol 483 ◽  
pp. 214-218
Author(s):  
Hiu Jie Zhu ◽  
Hui Feng Gao ◽  
Chun Bo Wei ◽  
Zheng Yong Wang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Heat Pump ◽  
Evaluation System ◽  
Building Energy ◽  
Database System ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source

With the rapid development of urbanization,the building energy use increases rapidly, in order to guarantee the sustainable development of our country road, energy saving, low carbon, emission reduction work has become an urgent issue.Building energy consumption database is an important part of the construction of energy-saving work, In this paper, the aim is to establish the large-scale public building energy consumption database system in northeast cold area of , mainly introduced the database development tools, the choice of object oriented programming method , the system design process,treating the ground source heat pump system as the research object, this paper have had research and analysis on applicability of ground source heat pump system and established the evaluation system.

Design of Air Source Heat Pump System Based on BP Network Prediction

2018 ◽  
Author(s):  
Zhang Guihong ◽  
Yang Yi ◽  
Chen Jianbo ◽  
Mei Tianxiang ◽  
Gu Haiqin ◽  
...  
Keyword(s):  
Heat Pump ◽  
Pump System ◽  
Bp Network ◽  
Heat Pump System ◽  
Air Source Heat Pump ◽  
Network Prediction

Rational assessment and selection of air source heat pump system operating with CO2 and R407C for electric bus

2022 ◽  
Vol 182 ◽  
pp. 86-101
Author(s):  
Haidan Wang ◽  
Yulong Song ◽  
Yiyou Qiao ◽  
Shengbo Li ◽  
Feng Cao
Keyword(s):  
Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Air Source Heat Pump ◽  
Electric Bus ◽  
System Operating ◽  
Selection Of

scholarly journals Intelligent Calculation Model and Algorithm Optimization of Optimal Operation of Integrated Energy System

2021 ◽  
Vol 2083 (3) ◽  
pp. 032033
Author(s):  
Kun Wang ◽  
Guochao Yang ◽  
Baohua Cheng ◽  
Zhiyong Gan ◽  
Yan Qi ◽  
...  
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Energy System ◽  
Calculation Model ◽  
Optimal Operation ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
Saving Effect

Abstract This paper analyzes the energy saving effect and optimal operation of the integrated park type energy system. The park type integrated energy system includes photovoltaic power generation system, ground source heat pump system, solar air conditioning system, regenerative electric boiler system and solar hot water system and so on. The energy saving benefit calculation model of each subsystem is established, and according to the operation history data of each subsystem, the calculation results of each subsystem are analyzed. It shows that: The energy saving income of photovoltaic power generation system is 734,200 yuan/year. The main revenue comes from the second and third quarters, during which it should pay attention to the maintenance of photovoltaic modules to ensure the maximum energy saving benefit. The energy saving income of ground source heat pump system in summer is 155,900 yuan/year, and the energy saving effect is not significant. It can cooperate with traditional units for cooling in summer. The heating in winter in the park is provided by ground source heat pump system, regenerative electric boiler system and solar energy air conditioning system. Its energy saving benefit is 3.995 million yuan/year which is the main source of energy saving income in the park, with remarkable energy saving effect.

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