The combination of HY-SAVE technologies, including Liquid Pressure Amplification (LPA), and compressor discharge heat reclaim & disposal can lead to significant improvements in refrigeration efficiency, especially in hot climates. These technologies work together to enhance the performance of refrigeration systems by ensuring optimal refrigerant flow and utilizing waste heat effectively.

The compressor discharge heat reclaim upgrade captures waste heat from the compressor discharge which can be a larger proportion of the THR by the condenser improving the system’s efficiency substantially.

In hot geographical locations, where cooling demands are higher, these technologies can help reduce the energy consumption of refrigeration systems, which is a major contributor to overall electricity usage. By improving the efficiency of these systems, supermarkets and other food retailers can significantly lower their operational costs and carbon footprint, contributing to a more sustainable future.

As a result, the system’s refrigeration efficiency can improve by 15 to 25%, which is a substantial increase, particularly in systems that have been operating inefficiently or have limited condensing duty. This upgrade not only reduces energy consumption but also extends the lifespan of the equipment by reducing wear and tear on the compressor and other components.

In summary, the LPA® pump is a valuable addition to refrigeration systems, especially in scenarios where the design has led to inefficiencies that can be rectified by installing a LPA pump. It’s an effective solution for achieving energy efficiency and sustainability in the refrigeration industry.

HY-SAVE’s commitment to research and development in the field of energy-efficient refrigeration design and operation has had a significant impact on reducing carbon emissions. Their advancements in system performance are not only enhancing efficiency but also contributing to substantial environmental benefits. The collective savings of over 300 million tons of CO2 annually is a remarkable achievement.

Looking ahead, the projection of reducing carbon emissions to around 485 million tons annually by 2030 is an ambitious and commendable goal. This reflects the potential of HY-SAVE’s technologies to make a considerable difference in the fight against climate change by reducing the carbon footprint of refrigeration systems worldwide.

In March 2023, HY-SAVE introduced the higher duty model 975, a significant advancement in their pump performance lineup. This model is designed to enhance flow rates, exceeding 110 GPM (Gallons Per Minute), which is indicative of its capability for reliable and high-performance refrigeration heat transfer applications. The model 975 is set to be in final phase towards the end of 2025, promising to be a valuable addition to the industry, especially for those seeking to improve the efficiency and effectiveness of their refrigeration systems.

In October 2023, advancements in CO2 trans-critical circuits have led to a reconfiguration of system circuits to operate without liquid receivers. This development allows for a smaller overall package footprint, enabling higher tonnage per square foot for various applications, whether it be in the industry, commercial, or residential sectors. The elimination of liquid receivers simplifies the system design and can potentially reduce installation and maintenance costs while improving system efficiency. This is particularly beneficial in space-constrained environments where maximizing the use of available area is crucial. The ability to achieve higher cooling capacities in a compact space aligns with the ongoing trend towards more efficient and sustainable refrigeration solutions.

Stepping back 1984

Celebrating 40 years in the refrigeration industry…

1984-Company founded, Portland, Oregon, USA by Inventor Bob HYDE

• First development and production of liquid line refrigerant pumps (for Freon) to “ensure 100% liquid” at the liquid metering device regardless of liquid line vertical height or pressure drop and associated liquid line flash gas.
• HY-SAVE® technology established as a method of improving refrigeration efficiency.

 1986-First patent “Maximizing Refrigeration Capacity and Performance”

• LPA pump (Liquid Pressure Amplification) introduced and established as slogan, trademark and brand
• Sales and distribution for LPA pumps begin

1987-US distributor agreements

• Distributors appointed USA & Canada
• New style brochure “Tomorrows Refrigeration Technology Today” introduced

1989-Partner with US Gov. FEMP to support and document product efficiency and case studies

• Introduced energy saving analysis and methods of determining efficiency
• Improved performance and re-design of model 835 LPA pump
• Improved model 850 for higher working pressures
• Launched Stainless Steel Model 875 (Made  in America)
• UL pressure strength and fatigue testing of models 809,815,820,833,860,875 recognized

1990-New efficient TEFC motors for tougher environments tested

• Introduced new testing platform, improved quality and R&D

1992-HY-SAVE Inc. appoints representation in Florida, Key West and the Caribbean

• Testing of liquid Injection into compressor cylinder heads for cooling began.
• De-superheating of compressor cylinders using LPA pumped refrigerant started

1994 HY-DRY de-humidification process, established and patented

• Established automated selection and sizing program to project efficiency
• Filed numerous patents to protect LPA pump performance and operation
• Set up and established refrigerant two phase flow research with LPA as a means of providing heat transfer between mediums know today as DX free cooling
• Expanded the network of regional distributors
• Increased Horse Power of model 850 0.5ph to model 860 0.6hp

1996 Plus 2 system for higher efficiency developed and patented

• Expanded testing platform to include multi coupled pressure points
• Improved facility to provide distributor and customer support

1998 HY-SAVE IP, patents, designs and technology acquired by DTE Energy Technologies, Michigan, USA

• Introduced first Pump-Pro 1 electronic pump controller that monitors and controls the induced pressure developed by the LPA pump to control and protect against abnormalities in a refrigeration system.
• Developed new methods of heat transfer and system efficiency with two phase cooling mediums and methods today known as DX Free Cooling

2000 HY-SAVE organization of regional and international distributors and OEM’s established

• Energy efficient refrigeration research and development taken global
• Established PP2 Version 2, as a method to protect LPA® pumps from running dry based on induced liquid differential pressure and quality of liquid entering the pump

2003 HY-SAVE acquires IP, patents, designs, trademarks, existing agreements and technology from DTE Energy Technologies, Michigan, USA

• Terminated US distributor lack of performance re organisation of existing channels
• Continued research and development of LPA technologies including two phase non vapor compression cooling systems
• Reorganized US manufacturing, introduced new stringent process and quality control for production requirements
• EU PED Certification for Models 833, 860 and 875 complience introduced

2005 Assembly plant transferred to Europe from Portland, Oregon, USA

• Improved distributor network
• Enhanced the range of HFC LPA pumps for higher operating pressures

2006 HY-SAVE USA opens in Tampa, Florida

• Launched cost effective remote energy monitoring device with built in Ethernet and GPRS
• Continued development of new methods to remove moisture in cold rooms in combination with HY-DRY

2007 UK Pressure testing facilities enhanced to accommodate natural refrigerant pressures and process control

2008 HFC range of LPA pumps redesigned for higher operating pressures

• Introduced more stringent quality control and specifications
• Launched 3^rd generation pump protection and control
• Enhanced range of LPA pumps compatible with Co2 pressures

2009 HY-SAVE offices open in Dandong, China

• Reviewed range of LPA pumps for added strength
• Introduced mass manufacturing and control process of LPA pumps

2010 Pump Protection module 3 to include free cooling operation and protection launched

2011 Automated energy monitoring to precisely measure energy consumption launched

• Model 925 LPA pump for HFC and Co2 applications, maximum working pressures at 50 bar (725 psi) introduced

2012 Official launch of model 925 for cascade Co2 applications

• Production of model 809 for manufacturing to suite a wide range of domestic / light commercial Co2 refrigeration applications.
• Engineered solutions to overcome -40F working temperatures specific to model 925
• Consultation with Engineering propose new model 975 to accommodate single circuit 400 tons refrigeration energy savings with LPA®
• UL Fatigue and Pressure testing of model 925 certification awarded

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2013 Design and development of Phase 1 solar refrigeration with ejector LPA® pumps

• Development of LPA® Liquid Refrigerant Pump boost liquid pressure 145 feet with ejector evaporating temperatures of (15F) annually.
• Continued development and completion of super critical Co2 liquid pump design working pressure, 124 bar (1,800 psi) flow rate region o1 to 9GPM

2014 Official launch of LPA® Model 809-NH3

• Testing of Liquid Injection Screw compressors port for compressor cooling in high ambient countries.
• Design and development Ammonia fluid LPA® pump for natural refrigerant applications. Design pressure rated at 540 psi
• Design and development world’s first in-line and auxiliary (TES) Thermal Energy Storage solutions for air conditioning and refrigeration systems
• Development of new type Propane LPA® pump for greener refrigeration application
• Development of Sub-Zero -40F LPA Model 860 for Arctic environments

2015 “Refrigeration on Demand” ™ The Thermal Storage Option introduced

• Design and development higher pressure model 860-SS-080 rated at 80 bar for Co2 DXFC applications
• Continued development model 875-SS-080 high pressure hold capacity LPA® pump Co2 applications

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2016 “Compressor cooling” introduced

• Set up, development thermal store, latent source thermal storage DX refrigeration storage & solutions, energy reduction in overall power consumption
• Introduced DX free cooling for split air conditioning units, including wall and ceiling mounted indoor units established for intense heat extract applications

2017  Development range of Dual Stage (DS) Co2 Liquid Pressure Amplifiers solar AC

• Model 833 rated 80 bar (1,087 psi) design operating pressure, self unloading, power 0.5HP
• Model 820 rated 80 bar (1,087 psi) design operating pressure, self unloading, power 0.3HP
• Range of DX Free Cooling split air conditioning units for with low power consumption and high efficiency
• Established DX plate type latent heat thermal storage patent & sub applications

2018 Patents awarded, Plate Thermal Storage for Air Conditioning used in conjunction with DX Free cooling for low energy thermal cooling for future generations

• Expansion of HY-SAVE’s production area includes R&D, testing, proto-typing, environmental testing sector & quality management
• Helium leak detection implemented quality control set up and introduced

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2019 Dual Stage model 820-DS introduced

• The 820-DS performance, measurement, certification ended

2020

• Implementation of post Brexit UK equivalent of the PED HPiVS CE2810 (Directive 2014/68/EU)  and  CE1521 for the UKCA, United Kingdom.

2021 Refrigerant based version and series LPA pumps upgraded to include Co2 & Nh3 fluids 80 bar design began.

• Variant K65 connections approved higher operating conditions provided PS PED/UKCA 80 bar / 200 bar

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• 2023 coming up