Project Background: A Premier tertiary Grade A hospital’s Green Breakthrough

Xiangya 2^nd Hospital of Central South University, the largest tertiary Grade A hospital in Hunan Province, spans a medical construction area of 396,000 square meters and handles over 5,000 outpatient and emergency visits daily, resulting in massive cooling and heating demands. With the advancement of China’s "Dual Carbon" strategy, the hospital faced pressing challenges such as high energy consumption, costly maintenance, and unstable cooling efficiency in its existing HVAC systems.

In 2024, the hospital partnered with MULTISTACK to launch a comprehensive air-conditioning system efficiency upgrade and establish an intelligent energy consumption management platform, embarking on a path toward "green healthcare."

Solution: Dual Technologies Addressing Three Core Challenges
To tackle the hospital’s energy issues, MULTISTACK implemented a dual-technology solution combining magnetic levitation and modular scroll technologies, achieving high efficiency, energy savings and intelligent control solution:

Flooded Magnetic Oil-free Chillers (2 units)

Oil-free and Silent Innovation: Patented magnetic bearing technology eliminates mechanical friction, ensuring ultra-low noise for quiet, comfortable environments in ICUs and neonatal departments.

Energy Pioneer (42% Energy Savings): Significantly outperforms traditional units in power efficiency, with a projected ROI of 2 - 3 years.

Smart Redundancy Design: Multiple compressors work in synergy, ensuring uninterrupted operation even if one unit fails.

Modular Scroll Air-Source Heat Pumps (9 units)

❄Rapid Defrosting: Proprietary heat pump cycle technology enables complete frost removal in minimal time at severe conditions.

Dynamic Smart Control: Automatically adjusts module operation based on departmental loads, with each active module running at peak efficiency.

Modular Expansion: Easy installation without heavy machinery, seamlessly adapting to future hospital expansions.

Advantage: Why Xiangya Hospital Trusts Us?

（Image source: Hunan Daily）

Energy and Cost Savings: After the project was put into operation, the hospital achieved a 21% improvement in comprehensive energy efficiency, reducing annual CO₂ emissions by 81 tons and saving 31 tons of standard coal.

The energy efficiency upgrade at Xiangya 2nd Hospital exemplifies the healthcare industry’s commitment to sustainable development. MULTISTACK serves as a bridge of "cutting-edge technology," helping medical institutions accelerate their journey toward energy conservation, cost reduction, and operational excellence. Moving forward, we will continue to deepen our industry expertise, empowering more green benchmark projects with innovative solutions to contribute to both "Healthy China" and the "Dual Carbon" goals!