Mitsubishi Heavy Industries Unveils Centrifugal Heat Pump “ETI-W” Harnessing Waste Heat for Hot Water Supply Up to 90°C

Mitsubishi Heavy Industries Unveils Innovative Waste Heat Recovery Heat Pump

tokyo, Japan – October 3, 2025 – Mitsubishi heavy Industries Thermal Systems, Ltd. Has announced the development of it’s ETI-W, a cutting-edge centrifugal heat pump poised to redefine industrial heating practices. This technology effectively captures and reuses waste heat, offering significant energy savings and a reduced environmental footprint.

Addressing Industrial Energy Consumption

The ETI-W is designed to harness the heat typically released during factory production processes, transforming it into a valuable resource.It is indeed capable of delivering hot water up to 90℃ with a significant capacity of up to 640 kW. This capability allows the pump to replace conventional boilers in numerous high-temperature applications.

Wide Range of Applications

This innovative heat pump is expected to find applications across diverse sectors, including electronics manufacturing, automotive production, the food industry, chemical processing, and pharmaceutical companies. Moreover, it is indeed well-suited for providing heating and hot water in large commercial facilities and hospitality establishments.

Efficiency and Performance

the ETI-W boasts an notable Coefficient of Performance (COP) of 4.01 when supplying hot water at 90℃. Its design incorporates centrifugal compressors, building on proven technology from Mitsubishi’s existing range of centrifugal chillers. These compressors are optimized for the specific characteristics of the refrigerant used and can handle the large capacities common in industrial settings.

Compact Design and Environmental Responsibility

Despite its substantial capacity, the ETI-W retains a compact footprint thanks to the integration of an inverter starter panel and a shell-and-tube heat exchanger, mirroring the design of the ETI-Z series centrifugal chillers. Recognizing the importance of environmental stewardship, a model utilizing HFO-1233zd(E) – a non-fluorocarbon refrigerant with a Global Warming Potential (GWP) of just 1 and zero ozone depletion potential – is also available.

Expanding the heat Pump portfolio

The introduction of the ETI-W expands Mitsubishi Heavy Industries Thermal Systems’ complete portfolio of industrial and commercial heat pump solutions.This broadens the range of applications and capacities covered, allowing for tailored energy-saving solutions for a wider array of customers.

Market Leadership and Future Commitment

Mitsubishi Heavy Industries Thermal Systems currently holds a leading market share in Japan for centrifugal chillers. The company remains committed to developing innovative, eco-kind, and high-performance products that contribute to a sustainable future and the reduction of CO₂ emissions.

Feature	Specification
Maximum Hot Water Supply Temperature	90℃
Maximum Capacity	640 kW
Coefficient of Performance (COP)	4.01
Refrigerant Option	HFO-1233zd(E)
Global Warming Potential (GWP) of Refrigerant	1

The Growing Importance of Waste Heat Recovery

Waste heat recovery is increasingly recognized as a crucial component of industrial sustainability. According to the U.S. Department of Energy,approximately 20-30% of industrial energy is lost as waste heat. Capturing and reusing this energy can significantly reduce energy costs and carbon emissions.

Did You Know? Implementing waste heat recovery systems can reduce an organization’s carbon footprint by as much as 15-20%.

Pro Tip: Conduct a thorough energy audit to identify potential sources of waste heat within your facility.

What are your thoughts on the future of waste heat recovery in industrial settings? Share your insights in the comments below! Don’t forget to share this article with your network.

What are the primary industrial applications best suited for Mitsubishi Heavy Industries’ ETI-W heat pump, and why?

Mitsubishi Heavy Industries’ ETI-W: A Revolution in Waste Heat Recovery for Hot Water

Mitsubishi heavy Industries (MHI) has recently unveiled its groundbreaking centrifugal heat pump, the “ETI-W,” designed to efficiently recover and utilize waste heat for hot water supply, reaching temperatures up to 90°C. This innovation represents a critically important leap forward in energy efficiency and sustainability,notably for industrial applications and district heating systems. This article delves into the technology, benefits, applications, and potential impact of the ETI-W heat pump.

Understanding the ETI-W Technology

The ETI-W utilizes a centrifugal compressor, a key component differentiating it from traditional heat pumps. This allows for a wider operating range and higher temperature lift, making it uniquely suited for harnessing low-grade waste heat sources.

Hear’s a breakdown of the core technology:

* Centrifugal Compression: Unlike scroll or screw compressors, centrifugal compressors excel at handling large volumes of refrigerant, making them ideal for industrial-scale heat recovery.

* High-Temperature Operation: The ETI-W is specifically engineered to deliver hot water at temperatures up to 90°C, expanding its applicability to processes requiring high heat input.

* Waste Heat Sources: The system can effectively utilize various waste heat sources, including:

* Industrial exhaust gases

* Cooling water discharge

* Data center heat rejection

* Biogas engine cooling

* Refrigerant Choice: MHI has optimized the ETI-W for use with environmentally kind refrigerants, minimizing its global warming potential (GWP). Specific refrigerant options will vary based on regional regulations and application requirements.

Key Benefits of Implementing the ETI-W

Adopting the ETI-W heat pump offers a multitude of advantages, impacting both operational costs and environmental obligation.

* Reduced Energy Consumption: By recovering and reusing waste heat, the ETI-W significantly reduces reliance on conventional energy sources like natural gas or electricity for heating. This translates directly into lower energy bills.

* lower Carbon Footprint: Utilizing waste heat minimizes greenhouse gas emissions,contributing to a more lasting operation and aligning with increasingly stringent environmental regulations.

* Increased Operational Efficiency: Integrating the ETI-W into existing processes can improve overall system efficiency and reduce the need for auxiliary heating systems.

* Cost Savings: The combination of reduced energy consumption and potential carbon credits can lead to substantial long-term cost savings.

* Enhanced Sustainability Profile: Demonstrating a commitment to waste heat recovery enhances a company’s sustainability credentials and brand image.

Applications Across Industries

The versatility of the ETI-W makes it applicable across a broad spectrum of industries.

* District Heating: Integrating the ETI-W into district heating networks allows for the efficient utilization of waste heat from industrial facilities, reducing the overall carbon footprint of the network.

* Food & Beverage Processing: Many food and beverage processes generate significant waste heat. The ETI-W can recover this heat for cleaning, sterilization, or other heating requirements.

* Data centers: Data centers are notorious for their energy consumption and heat generation. The ETI-W can capture and reuse this heat for building heating or other applications.

* Chemical Processing: Chemical plants often have substantial waste heat streams. The ETI-W can be integrated into these processes to improve energy efficiency and reduce emissions.

* Wastewater Treatment: Wastewater treatment plants generate heat during various stages of the process. This heat can be recovered using the ETI-W for heating purposes.

* Manufacturing: Various manufacturing processes, such as metalworking and glass production, generate significant waste heat that can be repurposed.

ETI-W vs. Traditional Heat Pump Technologies

While traditional heat pumps are valuable for many applications, the ETI-W offers distinct advantages in specific scenarios.

Feature	ETI-W (Centrifugal)	Traditional Heat Pumps (Scroll/screw)
Temperature Lift	up to 90°C	Typically limited to 60-70°C
Waste Heat Sources	Wider range, including low-grade sources	More suited for higher-grade sources
Capacity	Larger capacity, ideal for industrial applications	Typically smaller capacity, suitable for residential/commercial
Refrigerant Flexibility	Optimized for various environmentally friendly refrigerants	Refrigerant options might potentially be limited
efficiency at high Temperatures	Maintains high efficiency at higher temperatures	Efficiency drops significantly at higher temperatures

Practical Considerations for Implementation

Successfully integrating the ETI-W requires careful planning and consideration.

1. Waste Heat Source Assessment: Thoroughly evaluate the quantity, temperature, and consistency of available waste heat sources.
2. **System