Research Status and Application of AirSource Heat Pump Technology

Abstract: With the improvement of people's living standards, water heaters almost into the various households. In the energy-saving emission reduction has become the trend of the times today, saving energy and reducing carbon emissions is the most fashionable way of life. Air source heat pump water heaters are increasingly being used in people's lives. It is well known that it has many advantages, safety, energy saving, comfort, environmental protection, but there are some factors that affect its development and promotion. This paper mainly discusses the development history of air source heat pump technology at home and abroad, working principle, working flow, turbo technology at present stage, efficient heat exchange, and the research status of air source heat pump technology, such as new type refrigerant and dual frequency compression frequency conversion, then it discusses the application of air source heat pump technology, has the advantage, and finally discusses its application and the existence of two major problems and suggestions for improvement. Key words:air source heat pump; water heater; energy saving and emission reduction; research status

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Study of Different Types of Water Heating Systems - Under Living Lab Conditions

ASME 2019 13th International Conference on Energy Sustainability ◽

10.1115/es2019-3944 ◽

2019 ◽

Author(s):

Swapnil Dubey

Keyword(s):

Energy Saving ◽

Heat Pump ◽

Heating System ◽

Heat Pumps ◽

Electrical Heating ◽

Water Heating ◽

Water Heater ◽

Water Heaters ◽

Living Lab ◽

Almost All

Abstract In Singapore, roughly 20% of the energy consumed by households is used for water heating and almost all the energy consumed by conventional electric water heaters. One of the significant potential energy saving opportunities lies in using energy-efficient water heating appliances. Recently, there has been a move towards energy-saving design and the use of natural refrigerants over fluorocarbons. Unlike conventional electric storage water heaters, which use electricity to heat water directly, heat pump storage water heaters use electricity only to operate a pump that circulates refrigerants around the system. This refrigerant collects heat from the surrounding atmosphere and transfers it to the water. CO2 heat pumps have low global warming potential when compared to other refrigerants based heat pumps, has zero ozone depletion potential, inexpensive, non-flammable, generate high temperature. In this project, a comparative analysis of three different water heater types has been presented based on real-time usage and living-lab conditions under the tropical climate of Singapore. These three types are: 1. Electrical heater storage type 2. Hybrid heat pump with auxiliary electrical heating water heater 3. CO2 heat pump water heater without auxiliary heating Study found significant energy saving using CO2 heat pump compared to other water heating system and also better for environment.

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Study on Performance of Air Source Heat Pump Water Heater

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.608-609.987 ◽

2012 ◽

Vol 608-609 ◽

pp. 987-993

Author(s):

Rui Duan

Keyword(s):

Energy Saving ◽

Heat Pump ◽

Primary Energy ◽

Energy Utilization ◽

Utilization Rate ◽

Water Heater ◽

Air Source Heat Pump ◽

Heat Pump Water Heater ◽

Good Energy ◽

Saving Effect

This paper introduce the working principle and classification of air source heat pump water heater. Thermodynamic calculation of the air source heat pump water heater is carried out, such as air source heat pump water heating coefficient, energy saving effect, and the cooling effect of the surrounding environment, and primary energy utilization of heating conditions of several forms. The primary energy utilization rate of air source heat pump water heater is the highest, and showing a good energy-saving.

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The Logical Choice of Auxiliary Heat Source for Solar Energy Water Heating System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.512-515.303 ◽

2012 ◽

Vol 512-515 ◽

pp. 303-306

Author(s):

Xue Lai Liu ◽

Guan Zhu Wang ◽

Yong An Li ◽

Xiao Feng Zhang

Keyword(s):

Heat Pump ◽

Operating Cost ◽

Water System ◽

Hot Water ◽

Low Carbon ◽

Water Heater ◽

Low Carbon Economy ◽

Water Heaters ◽

Air Source Heat Pump ◽

Heat Pump Water Heater

This article describes the solar hot water system, and establishes the computational model of hot water system. It analyzes the economical efficiency of solar water heaters which equipped with electric water heaters, gas water heaters and air-source heat pump water heaters. The results show that the initial investment of the system which equipped with an electric water heater and a gas water heater is almost, but the operating cost which equipped with a gas water heater system is lower. The operating cost which equipped with an air-source heat pump water heater is the lowest, though the initial investment is the highest. The solar hot water system which equipped with an air-source heat pump water heater has important reference value for going low-carbon economy road in China.

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

Energies ◽

10.3390/en11102811 ◽

2018 ◽

Vol 11 (10) ◽

pp. 2811 ◽

Cited By ~ 1

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.

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Energy-saving analysis of air source heat pump integrated with a water storage tank for heating applications

Building and Environment ◽

10.1016/j.buildenv.2020.107029 ◽

2020 ◽

Vol 180 ◽

pp. 107029

Author(s):

Pin Wu ◽

Zhichao Wang ◽

Xiaofeng Li ◽

Zhaowei Xu ◽

Yingxia Yang ◽

...

Keyword(s):

Energy Saving ◽

Heat Pump ◽

Storage Tank ◽

Water Storage ◽

Water Storage Tank ◽

Air Source Heat Pump

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Energy Saving Potential of Radiant Floor Heating Assisted by an Air Source Heat Pump in Residential Buildings

Energies ◽

10.3390/en14051321 ◽

2021 ◽

Vol 14 (5) ◽

pp. 1321

Author(s):

Yu-Jin Hwang ◽

Jae-Weon Jeong

Keyword(s):

Energy Saving ◽

Heat Pump ◽

Residential Buildings ◽

Heating Systems ◽

Air Source Heat Pump ◽

Heating Capacity ◽

Heating Loads ◽

Radiant Floor Heating ◽

Floor Heating ◽

Floor Temperature

The objective of this research is to establish an appropriate operating strategy for a radiant floor heating system that additionally has an air source heat pump for providing convective air heating separately, leading to heating energy saving and thermal comfort in residential buildings. To determine the appropriate optimal operating ratio of each system taking charge of combined heating systems, the energy consumption of the entire system was drawn, and the adaptive floor surface temperature was reviewed based on international standards and literature on thermal comfort. For processing heating loads with radiant floor heating and air source heating systems, the heating capacity of radiant floor heating by 1 °C variation in floor temperature was calculated, and the remaining heating load was handled by the heating capacity of the convective air heating heat pump. Consequently, when the floor temperature was 25 °C, all heating loads were removed by radiant floor heating only. When handling all heating loads with the heat pump, 59.2% less energy was used compared with radiant floor heating only. Considering the local discomfort of the soles of the feet, the floor temperature is expected to be suitable at 22–23 °C, and 31.5–37.6% energy saving compared with those of radiant floor heating alone were confirmed.

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