Recently, innovative enterprises in China's green radiation refrigeration technology have reached a deep strategic cooperation with Jiangsu Panhua Construction Group, officially launching their newly developed electric cooling solution for elevator equipment rooms. This solution is based on passive radiation refrigeration technology and relies on a dedicated refrigeration coating+AI digital control mode to achieve passive cooling and zero energy consumption operation in the elevator machine room. It accurately overcomes industry problems such as high temperature accumulation, high energy consumption, equipment aging, and complex operation and maintenance in the elevator machine room. This benchmark application marks the official entry of the temperature control industry in elevator machine rooms into a new era of passive low-carbon, and also provides a new landing model for green buildings and old elevator renovation projects in the Yangtze River Delta.

As a modern comprehensive technology enterprise deeply engaged in the field of construction engineering, Panhua Construction Group is based in Jiangsu and radiates across the country. It has multiple high-level qualifications for general contracting of construction projects, covering all areas of building construction, municipal engineering, smart buildings, decoration and renovation, and renovation of old facilities. It can provide full life cycle services including project planning, design and construction, and operation and maintenance management. For many years, the group has adhered to the business philosophy of "craftsmanship and green development", deeply cultivated the construction market in the Yangtze River Delta, focused on the new urbanization and green building track, and won national and provincial quality engineering awards for multiple projects. Against the backdrop of the comprehensive promotion of the dual carbon strategy, Pan China Construction actively lays out the green and energy-saving renovation and upgrading of old equipment sectors, continuously introduces cutting-edge low-carbon technologies, and comprehensively promotes the two-way greening and intelligent upgrading of new and existing projects.
According to authoritative industry data statistics, as of the end of 2024, the total number of elevators in use in China has reached 11.5324 million, ranking first in the world, and about 130000 old elevators need to be updated and specially renovated every year. The large number of elevators has made temperature control in the machine room a common operational challenge in the industry. At present, the vast majority of elevator machine rooms in China rely on mechanical equipment such as air conditioning and exhaust fans for forced cooling. The drawbacks of this traditional mode are becoming increasingly apparent: the room temperature in the machine room skyrockets under strong sunlight in summer, the air conditioning operates at high loads for a long time, and the electricity consumption remains high; Mechanical equipment is prone to aging and damage, and the later maintenance process is cumbersome and costly; At the same time, hidden dangers such as circuit overload and equipment leakage can easily lead to fire accidents, which cannot adapt to the current green building construction standards and the development requirements of the dual carbon policy, seriously restricting the low-carbon development of construction projects.
In response to common pain points in the industry, the overall solution for electric cooling in smart cooling equipment rooms breaks through the constraints of traditional air cooling and electric control cooling thinking. With the support of NAFUR&Smart Cooling Future Nano Functional Materials Joint Technology Center, a green low-carbon solution for electric cooling based on elevator equipment rooms is developed according to application scenarios. This solution relies on cutting-edge passive radiation cooling technology and low-carbon new materials to create a passive cooling mode that does not require electric drive, fundamentally revolutionizing the temperature control method of elevator equipment rooms. This coating has two core material advantages, stable and efficient cooling performance: on the one hand, the coating has a solar reflectance of ≥ 0.95, which can directly reflect the vast majority of solar radiation heat and block the penetration of external thermal energy into the interior of the computer room; On the other hand, with an infrared emissivity of ≥ 0.95, the excess heat inside the computer room can be directly radiated into outer space through an atmospheric transparent window, achieving all-weather autonomous cooling through bidirectional coordination. The entire technology does not require external electrical energy and has zero carbon emissions, making it a scarce pure green zero energy material solution in the field of temperature control in elevator machine rooms.
Unlike single cooling material products on the market, the intelligent cooling coating is not simply a functional material, but a digital comprehensive temperature control system that integrates passive cooling, lean engineering, intelligent monitoring, and carbon asset management. The innovative integration of AI intelligent technology into the overall solution for non electric cooling in the intelligent cooling equipment room has completed the upgrade from multi-dimensional material cooling to digital comprehensive management, empowering project operation and maintenance in all aspects: firstly, intelligent status monitoring, real-time collection of room environment temperature and elevator supporting equipment operation data 7 × 24 hours, automatic warning of abnormal data; Secondly, engineering quality control, realizing visual traceability of the entire construction process, standardizing construction standards, and ensuring cooling effects; Thirdly, intelligent accounting of carbon assets, the system can automatically calculate the energy-saving data of the computer room and accurately convert the corresponding carbon emission reductions, helping construction projects to accumulate carbon assets and assisting enterprises in achieving carbon emission target assessments.
Compared to traditional air conditioning cooling solutions, the intelligent passive cooling coating solution has significant comprehensive advantages. Firstly, zero energy consumption can reduce costs and increase efficiency, completely eliminate electricity dependence throughout the process, completely eliminate refrigeration electricity expenses in the computer room, and reduce the cost of purchasing and replacing mechanical and electrical refrigeration equipment; Secondly, it operates passively and safely, with no circuit equipment, no risk of leakage or fire, and is not affected by power outages or extreme weather conditions. It continuously and stably controls the temperature in the computer room, delaying the aging rate of core components such as control cabinets and frequency converters; Thirdly, the minimalist operation and maintenance mode ensures a long service life after coating formation, eliminating the need for frequent maintenance and greatly reducing labor costs; Fourthly, it has a wide range of adaptation scenarios, which can be applied to new commercial buildings, residential buildings, municipal public construction projects, as well as to elevator renovation projects in old residential areas, with strong compatibility.
At present, the set of electric refrigeration and temperature control solutions has been successfully implemented and put into operation in multiple cooperative projects of Jiangsu Panhua Construction Group. After multiple rounds of testing under high temperature exposure in summer, the elevator machine room equipped with a dedicated refrigeration coating meets the national standard requirements for temperature control, effectively solving the problem of high temperature accumulation in the machine room during summer. Based on project data calculations, a single elevator machine room can save a significant amount of electricity annually, synchronously slow down the aging rate of elevator equipment, and balance the three core values of energy conservation, safety, and cost reduction. It has been highly recognized by the management and front-line operation and maintenance team of Panhua Group.
The project leader of Jiangsu Panhua Construction Group stated that green and low-carbon transformation has become an irreversible development trend in the construction industry. Energy saving renovation of old facilities and low-carbon supporting facilities for new projects are the core development priorities of the group at the current stage. The traditional cooling mode of elevator machine room has high energy consumption and significant safety hazards, which has always been a pain point for project operation and maintenance. This time, we have collaborated with Smart Cooling Technology and the brand to introduce a passive radiation cooling coating solution, which solves the problem of temperature control in computer rooms with an innovative model of passive zero energy consumption. At the same time, we rely on AI digital systems to improve operation and maintenance efficiency and activate carbon assets. Future Group will deepen the cooperation between the two parties, popularize this technology in more new and old renovation projects, and work together to create a benchmark case for green elevator operation and maintenance in the Yangtze River Delta region.
The person in charge of the "Intelligent Cooling Elevator Equipment Room Non electric Refrigeration New Material Project" stated that this deep binding cooperation with Jiangsu Panhua Construction Group is a key practical application of passive radiation refrigeration coating technology in the field of large-scale construction, and has accumulated valuable project experience for promoting the technology to the national market. In the future, the company will continue to deepen the research and development of passive refrigeration materials, implement lean construction, iteratively upgrade AI monitoring and carbon accounting systems, and optimize product adaptability. At the same time, relying on the industry resources of Pan China Group for many years, we deeply cultivate the Yangtze River Delta market and provide standardized passive cooling solutions for various scenarios such as residential buildings, industrial parks, and public building supporting facilities, helping the construction industry reduce carbon emissions and burdens.
Industry insiders have analyzed that the launch and implementation of electric cooling solutions for smart cooling elevator equipment has broken the inherent pattern of relying on traditional temperature control modes in the elevator industry for decades. The combination of passive radiation cooling technology and AI digital management has redefined the green operation and maintenance standards for elevator machine rooms. Under the support of the dual carbon policy, zero energy consumption, high safety, and easy to popularize electric cooling solutions are expected to become standard equipment for green building elevator rooms in the future, fully covering the market of new buildings and old elevator renovations, providing strong technical support for energy conservation, emission reduction, and green high-quality development of China's construction industry.
Extended reading: SmartCool brand is created by Jiangsu Chuangleng Technology Engineering Enterprise. The company is jointly established by professional materials, engineering technology, and operation teams from Milan Polytechnic University, City University of Hong Kong, East China University of Technology, etc., focusing on innovative applications of radiation refrigeration new materials. Integrating AI technology with new material innovation, focusing on the industrial application of radiation refrigeration technology, based in the Yangtze River Delta, integrating global resources, and promoting technology implementation. At present, the "Intelligent Cooling · Zhenxuan" brand radiation refrigeration new material series products have been widely applied in the industrial and commercial energy-saving fields in the Yangtze River Delta region.