Heat pump technology as an important energy-saving emission reduction technology, the market prospects are very broad. More and more countries and government enterprises are aware of the energy saving and environmental benefits that heat pumps can bring. The market data also shows that the future development trend is good. Nowadays, as the low heat source of renewable energy makes the heat pump system greatly affected by its changes, according to the actual conditions of different countries and regions, using composite heat pump technology can achieve better energy saving and environmental protection effects. It is precisely because of this that various countries and regions have different ground-source heat pump technologies due to different actual conditions, and they have studied various aspects from heat exchangers, heat pump units to system control optimization. It is worth mentioning that the application of various heat pump types in different buildings and optimization research is also one of the focuses of heat pump technology research.
Shanghai Liangong Pump Industry Co., Ltd. introduced the situation of the heat pump conference and made a keynote speech on “International Heat Pump Technology Developmentâ€. The conference focused on technical exchanges and covered academic, business, management, and engineering aspects of the industry. Relevant data show that there are still more researches on heat pump technology in heat pump conferences in Europe and China. In terms of collecting articles, the total number of records collected in the previous session increased by 16%. This undoubtedly indicates that heat pump research has been active in recent years. When discussing the collection of articles in the 10th IEA Heat Pump Conference, the Shanghai Liangong Pump Industry pointed out that “The domestic papers mainly involve technology development, ground source heat pump, and heat pump applications in terms of technology. The number of articles collected is ranked number one. Second, the most involved systems and devices, followed by ground source heat pumps, and again air source heat pumps. It can be said that the heat pump research work in recent years in China has continued to unfold and is on the rise.
In recent years, the installed capacity of heat pumps in all countries is on the rise. The rise in heat pump sales and installed capacity is related to the current pressure on energy prices and greenhouse gas emission reductions in various countries. At the same time as the quantity is increased, research on the improvement of the energy efficiency of heat pump units in various countries is also continuously strengthened. At the annual meeting, Shanghai Liangong Pump Industry Co., Ltd. conducted a specific analysis of the heat pump policies and market development trends in various countries, and detailedly explained the status of heat pump technology and applications.
Therefore, the study of ground source heat pump technology is particularly important. Through corresponding research on ground-source heat pumps used in single-family houses, the results show that there is a gap between the theoretical calculation of COP and the actual test SCOP. The measured COP is about 15% lower than the theoretical calculation. Canada also conducted thermal response experiments on 31 project sites in the Toronto area, and obtained the range of thermal properties across the Toronto area. It also demonstrated that groundwater can increase the heat transfer coefficient and reduce the thermal resistance. This shows that both the development of technology and the development of the market have achieved certain results.
Shanghai Liangong Pumps analyzed the development of the ground-source heat pump industry in Sweden. He pointed out that Sweden's heat pump technology is even more at the level of Northern Europe. The Heat Pump Committee Secretariat hangs on the Swedish National Testing Institute. Different from our country, their heat pump classification methods are not classified according to air source and ground source, but related to the way of heat pump units, and Sweden does not do backfilling. The Shanghai Liangong Pump Industry Report also pointed out that in terms of technology research, Sweden's data for vertical buried heat exchangers and the new system's operating coefficient of heat exchangers and ground source heat pump systems, the ground source heat pump system in different types of buildings The application, the application of new refrigerants in heat pumps, the application of heat pumps in low-energy buildings, and the evaluation of performance coefficients of heat pump systems have carried out in-depth research. In the report, Shanghai Liangong Pumps focused on China as a host country for heat pump conferences. In terms of heat pump technology, China is at a world-class level and technological research has also achieved outstanding results. According to statistics, RAC's revenue value rose from 3.5 in 1997 to 6.8 in 2010, an alarming rate of increase. Shanghai Liangong Pump also introduced the Chinese heat pump technology. He said that China has conducted research on the joint operation of ground source heat pump systems with solar energy, air sources and storage tanks. Based on the actual operational data of the study of the pile-based short-term energy storage ground source heat pump system, the results show that the daytime cooling and nighttime domestic hot water operation mode can make the ground source heat pump system achieve better efficiency. The groundwater source heat pump that uses the energy storage of the underground aquifer was studied. The test results were used to evaluate the changes in the soil temperature field since the ground source heat pump system was operated. For the multi-source heat pump system, solar energy, soil energy, and air source are used as low heat sources for heat pumps. Compared with traditional heat pumps, power consumption can be reduced by 44% in summer and 39% in winter. In selecting refrigerant substitution schemes, developed and developing countries should select different refrigerant substitution schemes according to different regions and different application conditions. While analyzing the theoretical and practical application research problems of changing the refrigerant flow heat pump system, Shanghai Liangong Pump Industry Co., Ltd. stated that adopting an algorithm that reduces the energy consumption of the refrigerant flow system can make the system have a higher COP. China is also vertically burying heat exchanger data and new heat exchangers, composite heat pump systems, new refrigerants used in heat pumps, absorption heat pumps, heat pumps in industrial applications, and heat pump systems to evaluate performance coefficients. Significant results have been achieved in the study.
When analyzing the development situation in China, Shanghai Liangong Pump Industry Co., Ltd. said that when using ground source heat pump systems in different buildings, based on the theory of probability, the TRT test results were statistically analyzed. This method improves the reliability of the results and can provide More effective design guidance. Simulated soil thermal conductivity, groundwater seepage velocity, vertical drilling parameters and operating strategy on the ground source heat pump heat transfer.
It is necessary to simplify the design by studying the linear and nonlinear relationships between various factors.
Talking about the research of the compound heat pump system, Shanghai Liangong Pump Industry Co., Ltd. felt that taking the villa building in Beijing as an example to simulate the ground source heat pump and solar energy composite system, the simulation results showed that when the local buried heat exchanger is insufficient, the composite system can be significantly improved. System performance. Then, the Shanghai Liangong Pump Industry Co., Ltd. also conducted an analysis of the actual measurement of the river water source heat pump. The analysis pointed out that the COP of the river water source heat pump in the Chongqing area is not less than 3.0, and the transmission energy consumption is less than 39%, which has good energy-saving characteristics. In terms of evaluating the performance coefficient of heat pump systems, he told everyone that the long-term operation and performance monitoring of heat pump systems in residential areas aims to obtain the characteristics of reliability, stability, and SPF characteristics during the entire life cycle of heat pump systems through long-term testing.
Shanghai Liangong Pump Industry Co., Ltd. introduced the situation of the heat pump conference and made a keynote speech on “International Heat Pump Technology Developmentâ€. The conference focused on technical exchanges and covered academic, business, management, and engineering aspects of the industry. Relevant data show that there are still more researches on heat pump technology in heat pump conferences in Europe and China. In terms of collecting articles, the total number of records collected in the previous session increased by 16%. This undoubtedly indicates that heat pump research has been active in recent years. When discussing the collection of articles in the 10th IEA Heat Pump Conference, the Shanghai Liangong Pump Industry pointed out that “The domestic papers mainly involve technology development, ground source heat pump, and heat pump applications in terms of technology. The number of articles collected is ranked number one. Second, the most involved systems and devices, followed by ground source heat pumps, and again air source heat pumps. It can be said that the heat pump research work in recent years in China has continued to unfold and is on the rise.
In recent years, the installed capacity of heat pumps in all countries is on the rise. The rise in heat pump sales and installed capacity is related to the current pressure on energy prices and greenhouse gas emission reductions in various countries. At the same time as the quantity is increased, research on the improvement of the energy efficiency of heat pump units in various countries is also continuously strengthened. At the annual meeting, Shanghai Liangong Pump Industry Co., Ltd. conducted a specific analysis of the heat pump policies and market development trends in various countries, and detailedly explained the status of heat pump technology and applications.
Therefore, the study of ground source heat pump technology is particularly important. Through corresponding research on ground-source heat pumps used in single-family houses, the results show that there is a gap between the theoretical calculation of COP and the actual test SCOP. The measured COP is about 15% lower than the theoretical calculation. Canada also conducted thermal response experiments on 31 project sites in the Toronto area, and obtained the range of thermal properties across the Toronto area. It also demonstrated that groundwater can increase the heat transfer coefficient and reduce the thermal resistance. This shows that both the development of technology and the development of the market have achieved certain results.
Shanghai Liangong Pumps analyzed the development of the ground-source heat pump industry in Sweden. He pointed out that Sweden's heat pump technology is even more at the level of Northern Europe. The Heat Pump Committee Secretariat hangs on the Swedish National Testing Institute. Different from our country, their heat pump classification methods are not classified according to air source and ground source, but related to the way of heat pump units, and Sweden does not do backfilling. The Shanghai Liangong Pump Industry Report also pointed out that in terms of technology research, Sweden's data for vertical buried heat exchangers and the new system's operating coefficient of heat exchangers and ground source heat pump systems, the ground source heat pump system in different types of buildings The application, the application of new refrigerants in heat pumps, the application of heat pumps in low-energy buildings, and the evaluation of performance coefficients of heat pump systems have carried out in-depth research. In the report, Shanghai Liangong Pumps focused on China as a host country for heat pump conferences. In terms of heat pump technology, China is at a world-class level and technological research has also achieved outstanding results. According to statistics, RAC's revenue value rose from 3.5 in 1997 to 6.8 in 2010, an alarming rate of increase. Shanghai Liangong Pump also introduced the Chinese heat pump technology. He said that China has conducted research on the joint operation of ground source heat pump systems with solar energy, air sources and storage tanks. Based on the actual operational data of the study of the pile-based short-term energy storage ground source heat pump system, the results show that the daytime cooling and nighttime domestic hot water operation mode can make the ground source heat pump system achieve better efficiency. The groundwater source heat pump that uses the energy storage of the underground aquifer was studied. The test results were used to evaluate the changes in the soil temperature field since the ground source heat pump system was operated. For the multi-source heat pump system, solar energy, soil energy, and air source are used as low heat sources for heat pumps. Compared with traditional heat pumps, power consumption can be reduced by 44% in summer and 39% in winter. In selecting refrigerant substitution schemes, developed and developing countries should select different refrigerant substitution schemes according to different regions and different application conditions. While analyzing the theoretical and practical application research problems of changing the refrigerant flow heat pump system, Shanghai Liangong Pump Industry Co., Ltd. stated that adopting an algorithm that reduces the energy consumption of the refrigerant flow system can make the system have a higher COP. China is also vertically burying heat exchanger data and new heat exchangers, composite heat pump systems, new refrigerants used in heat pumps, absorption heat pumps, heat pumps in industrial applications, and heat pump systems to evaluate performance coefficients. Significant results have been achieved in the study.
When analyzing the development situation in China, Shanghai Liangong Pump Industry Co., Ltd. said that when using ground source heat pump systems in different buildings, based on the theory of probability, the TRT test results were statistically analyzed. This method improves the reliability of the results and can provide More effective design guidance. Simulated soil thermal conductivity, groundwater seepage velocity, vertical drilling parameters and operating strategy on the ground source heat pump heat transfer.
It is necessary to simplify the design by studying the linear and nonlinear relationships between various factors.
Talking about the research of the compound heat pump system, Shanghai Liangong Pump Industry Co., Ltd. felt that taking the villa building in Beijing as an example to simulate the ground source heat pump and solar energy composite system, the simulation results showed that when the local buried heat exchanger is insufficient, the composite system can be significantly improved. System performance. Then, the Shanghai Liangong Pump Industry Co., Ltd. also conducted an analysis of the actual measurement of the river water source heat pump. The analysis pointed out that the COP of the river water source heat pump in the Chongqing area is not less than 3.0, and the transmission energy consumption is less than 39%, which has good energy-saving characteristics. In terms of evaluating the performance coefficient of heat pump systems, he told everyone that the long-term operation and performance monitoring of heat pump systems in residential areas aims to obtain the characteristics of reliability, stability, and SPF characteristics during the entire life cycle of heat pump systems through long-term testing.
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