Cutting-Edge Two-Phase Expander Technology

At Tree, we are committed to transforming the energy efficiency of refrigeration systems, which currently account for a staggering 20% of global electricity consumption and generate more than double the CO₂ emissions of the shipping and aviation industries combined.

Our ground-breaking two-phase flow expander offers a revolutionary solution, capable of reducing electricity consumption by up to 40%, setting a new standard for energy efficiency in the refrigeration sector.


By tackling the energy-intensive demands of refrigeration, our innovative system not only helps to significantly reduce carbon emissions and combat climate change but also delivers substantial cost savings for industries reliant on refrigeration, including food processing, cold storage, and retail.

How does it work?

Our innovative two-phase turbine expander for CO₂ refrigeration systems is a cutting-edge, sustainable solution designed to enhance the performance and efficiency of CO₂ trans-critical systems. By capturing expansion energy and converting it into usable power, our turbine expander significantly reduces electricity consumption, helping to lower operational costs and minimise carbon footprints.

What sets our technology apart is its ability to be seamlessly retrofitted into existing CO₂ refrigeration systems, making it a versatile and accessible upgrade for industries seeking to adopt energy-efficient, eco-friendly refrigeration solutions.

Step 1: High-Pressure Compression in the Refrigeration Cycle

Diagram of a wind energy system with fan, generator, and transformer."}]}

The refrigeration process begins with the compressor, where the working fluid is compressed, significantly increasing its pressure and temperature. This high-pressure gas then passes through the gas cooler, which efficiently rejects excess heat to the atmosphere, setting the stage for the next phase in the energy-efficient refrigeration cycle.

Step 2: Harnessing Energy with Our Two-Phase Flow Expander

Our revolutionary two-phase flow expander transforms the traditional expansion process by replacing the standard expansion device with a high-performance system that captures expansion energy. This captured energy is efficiently converted into electrical power, while simultaneously delivering a low-pressure liquid optimised for the evaporator. By integrating this innovative technology, we enhance the overall energy efficiency and sustainability of CO₂ refrigeration systems.

Illustration of a drainage system with water flowing through a pipe, marked with an arrow indicating water flow direction, over a grid background.

Step 3: Efficient Heat Absorption in the Evaporator

The refrigeration cycle concludes as the liquid refrigerant enters the evaporator, where it efficiently absorbs heat from the cooled space. This critical process ensures optimal cooling performance while maintaining energy efficiency, making it a key component in advanced CO₂ refrigeration systems.

Benefits

Substantial Energy Savings

Our innovative system can reduce electricity consumption in refrigeration by up to 40%, leading to considerable cost savings for businesses.

Retrofit Capability

Designed for seamless integration, our two-phase turbine expander can be retrofitted into existing CO₂ trans-critical systems, allowing businesses to upgrade without overhauling current infrastructure.

Environmental Impact Reduction

By enhancing energy efficiency, our technology helps lower greenhouse gas emissions, contributing to global efforts against climate change.

Versatile Industry Applications

Our scalable solution is suitable for various sectors, including supermarkets, agriculture, and food processing, providing flexible and efficient refrigeration across multiple industries.

Applications

Tree Associates’ Refrigeration technology is a highly adaptable and sustainable solution, ideal for a variety of applications, including but not limited to:

  • Enhance energy efficiency in supermarket refrigeration systems, reducing electricity consumption and operational costs while maintaining optimal cooling for perishable goods.

  • Improve cooling performance and energy savings in cold storage warehouses, ensuring reliable temperature control for frozen and chilled products.

  • Optimise refrigeration systems in food processing plants, supporting energy-efficient cooling for meat, dairy, and other temperature-sensitive products.

  • Reduce energy usage in the beverage industry, providing efficient refrigeration for production, bottling, and storage of drinks.

  • Deliver sustainable cooling for dairy farms and processing plants, preserving product quality while cutting energy costs.

  • Ensure precise temperature regulation in pharmaceutical facilities, maintaining the integrity of vaccines, medicines, and other sensitive products.

  • Support energy-efficient cooling in data centres, ensuring optimal operating temperatures for servers while reducing energy demand.


  • Provide reliable refrigeration for post-harvest cooling in agriculture, extending the shelf life of fresh produce and reducing spoilage.

  • Enhance refrigeration systems in hotels, restaurants, and catering businesses, ensuring efficient cooling for food storage and preparation while lowering energy bills.

Tree Associates' two-phase flow expander technology is a versatile, scalable solution tailored to meet the unique needs of diverse industries, promoting energy efficiency and sustainability across all applications.

Start Your Journey

At Tree Associates, we ensure a seamless and collaborative process to help businesses adopt and integrate our innovative technologies. If you reach out to our team via our website, phone, or email, we’ll start the beginning steps of our process:

.1

Discovery Meeting

We arrange a detailed consultation to understand your business needs, challenges, and sustainability goals.

.2

Feasibility Assessment

Our experts conduct a feasibility study to determine how our technology, can integrate into your operations.

Contact