With the development of industrialization, the problem of global warming has become more and more serious. In order to significantly reduce the production and consumption of powerful greenhouse gases and limit the pace of global warming, the use of environmentally friendly low-carbon refrigerants has become the consensus of the air-conditioning industry.
Why choose CO2
The Kigali amendment to the Montreal Protocol came into effect on January 1, 2019, and included 18 HFCs with high greenhouse effect potential (GWP) into the control list, including: R134a, R32, R125, R152, R410A, etc. .
At present, passenger car air-conditioning refrigerants are in the control catalog. In order to respond to the requirements of environmental protection, the development of low-GWP refrigerant air-conditioning systems is an inevitable direction for the development of the industry.
CO2 refrigerant ODP is 0, GWP (100 years) is 1.
It is the preferred development direction of low-carbon environmentally friendly refrigerants.
SONGZ CO2 Environmental Refrigerant Air Conditioning Development Progress
In 2019, the first CO2 passenger car air conditioning system in the passenger car air conditioning industry was developed.
In 2020, CO2 passenger car air-conditioning system products have passed series development and verification, forming the first marketable product.
From August to November 2020, participate in the China Refrigeration Association “The 8th China Vehicle Thermal Management Technology Annual Conference in 2020″, “The 2nd Automotive Air Conditioning System Innovation Technology Forum in 2020″, and the Beijing “Road Transport Vehicle Exhibition” technical forum, three times Released SONGZ CO2 product technology research results.
In December 2020, SONGZ’s first mass production prototype of CO2 passenger car air conditioner was off the line! And it has reached a cooperation agreement with a number of domestic leading passenger car industries to provide CO2 air conditioners for vehicle verification.
SONGZ CO2 natural refrigerant air conditioning products
1. SONGZ products CO2 products
2. SONGZ product patent technology
In view of the unique characteristics of the new environmentally friendly CO2 refrigerant, a number of technologies have been researched and developed, and patents have been declared.
3. Product reliability verification
① Structural reliability verification
According to the operating pressure characteristics of the CO2 air-conditioning system, comprehensive reliability verification of the air-conditioning structure design is carried out.
②Reliability verification of key components
Reliability verification for key components used in CO2 air conditioning system.
③Performance verification
◆Under the refrigeration standard condition, the nominal cooling capacity of the CO2 air conditioning system meets the cooling demand of the vehicle, and the energy efficiency is 1.97, which is a good data for the CO2 air conditioning system industry.
◆Under heating standard conditions, the nominal heating capacity of the CO2 air conditioning system is increased by more than 35% compared with the existing R410A air conditioning system, and the system energy efficiency reaches 3.0.
◆Under the ambient temperature of -15℃, the heating capacity of the CO2 air conditioning system is about 62% higher than that of the R410A air conditioning system, and the energy efficiency of the air conditioning system is 1.9, which is about 31% higher than the existing R410A air conditioning system.
④SONGZ CO2 bus air conditioning technology advantages
◆The system is designed with three-level high-voltage protection to ensure the safety and reliability of the system.
◆Adopt independent patented technology of CO2 system to realize double countercurrent heat exchange. At the same time, the economizer circuit is designed and the double-level electronic expansion valve is used to improve the energy efficiency of system cooling and heating operation.
◆ Independently develop the unique optimal pressure control technology of the CO2 system and independent program design to realize the optimal energy efficiency operation of the system under various working conditions.
◆Develop a unique system that does not stop the machine and does not switch the defrosting mode to realize the continuous heating design during the defrosting process and improve the comfort of passengers.
As a leader in the passenger car air-conditioning industry, SONGZ has always adhered to the concept of “Technology For Tomorrow, Excellence Through Innovation”. The launch of SONGZ CO2 passenger car air-conditioning products provides a strong support for the industry to respond to changes in environmental protection trends in the future, and will surely lead the development of new energy passenger car air-conditioning.
Note:
1、CO2 refrigerant ODP is 0, GWP (100 years) is 1.
2、Overcome multiple pain points and difficulties of the CO2 system, develop a reliable CO2 thermal management system, and officially launch it to the market, leading the development of thermal management systems in the domestic passenger car industry in order to excel.
Post time: Apr-07-2021