Energy Recovery

Summary
Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells various solutions for the seawater reverse osmosis desalination and industrial wastewater treatment industries worldwide. The company operates through Water and Emerging Technologies segments. It offers a suite of products, including energy recovery devices, and high-pressure feed and recirculation pumps; hydraulic turbochargers and boosters; and spare parts, as well as repair, field, and commissioning services. The company also offers a solution to reduce energy consumption in natural gas processing and in refrigeration systems that use carbon dioxide. It provides its products under the ERI, Ultra PX, PX, Pressure Exchanger, PX Pressure Exchanger, PX PowerTrain, VorTeq, IsoBoost, AT, and AquaBold names to large engineering, procurement, and construction firms; end-users and industry consultants; original equipment manufacturers; and aftermarket customers. The company was incorporated in 1992 and is headquartered in San Leandro, California.

History

covery includes any technique or method of minimizing the input of energy to an overall system by the exchange of energy from one sub-system of the overall system with another. The energy can be in any form in either subsystem, but most energy recovery systems exchange thermal energy in either sensible or latent form.

In some circumstances the use of an enabling technology, either daily thermal energy storage or seasonal thermal energy storage , is necessary to make energy recovery practicable. One example is waste heat from air conditioning machinery stored in a buffer tank to aid in night time heating.

Principle

A common application of this principle is in systems which have an exhaust stream or waste stream which is transferred from the system to its surroundings. Some of the energy in that flow of material may be transferred to the make-up or input material flow. This input mass flow often comes from the system's surroundings, which, being at ambient conditions, are at a lower temperature than the waste stream. This temperature differential allows heat transfer and thus energy transfer, or in this case, recovery. Thermal energy is often recovered from liquid or gaseous waste streams to fresh make-up air and water intakes in buildings, such as for the HVAC systems, or process systems.

System approach

Energy consumption is a key part of most human activities. This consumption involves converting one energy system to another, for example: The conversion of mechanical energy to electrical energy, which can then power computers, light, motors etc. The input energy propels the work and is mostly converted to heat or follows the product in the process as output energy. Energy recovery systems harvest the output power and provide this as input power to the same or another process.

An energy recovery system will close this energy cycle to prevent the input power from being released back to nature and rather be used in other forms of desired work.

Examples

Heat recovery is implemented in heat sources like e.g. a steel mill. Heated cooling water from the process is sold for heating of homes, shops and offices in the surrounding area.

Regenerative braking is used in electric cars, trains, heavy cranes etc. where the energy consumed when elevating the potential is returned to the electric supplier when released.

Active pressure reduction systems where the differential pressure in a pressurized fluid flow is recovered rather than converted to heat in a pressure reduction valve and released.

Energy recovery ventilation

Energy recycling

Water heat recycling

Heat recovery ventilation

Heat recovery steam generator

Cyclone Waste Heat Engine

Hydrogen turboexpander-generator

Thermal diode

Thermal oxidizer

Thermoelectric Modules

Waste heat recovery units

Electric Turbo Compound

Electric Turbo Compounding is a technology solution to the challenge of improving the fuel efficiency of gas and diesel engines by recovering waste energy from the exhaust gases.

STES

At a foundry in Sweden waste heat is recovered and stored in a large mass of native bedrock which is penetrated by a cluster of 140 heat exchanger equipped boreholes that are 150m deep. This store is used for heating an adjacent factory as needed, even months later.

The Drake Landing Solar Community in Alberta, Canada uses STES to recover and utilize natural heat that otherwise would be wasted. The community uses a cluster of boreholes in bedrock for interseasonal heat storage, and this enables obtaining 97 percent of the year-round space heating from solar thermal collectors on the garage roofs.

Cold winter temperatures can be recovered by circulating water through a dry cooling tower and using that to chill a deep aquifer or borehole cluster. The chill is later recovered from the storage for summer air conditioning. With a coefficient of performance of 20 to 40, this method of cooling can be ten times more efficient than conventional air conditioning.

Environmental impact

There is a large potential for energy recovery in compact systems like large industries and utilities. Together with energy conservation, it should be possible to dramatically reduce world energy consumption. The effect of this will then be:

Reduced number of coal-fired power plants

Reduced airborne particles, NOx and CO2 – improved air quality

Slowing or reducing climate change

Lower fuel bills on transport

Longer availability of crude oil

Change of industries and economies not fully researchedIn 2008 Tom Casten, chairman of Recycled Energy Development, said that "We think we could make about 19 to 20 percent of U.S. electricity with heat that is currently thrown away by industry."A 2007 Department of Energy study found the potential for 135,000 megawatts of combined heat and power in the U.S., and a Lawrence Berkley National Laboratory study identified about 64,000 megawatts that could be obtained from industrial waste energy, not counting CHP. These studies suggest that about 200,000 megawatts, or 20%, of total power capacity could come from energy recycling in the U.S. Widespread use of energy recycling could therefore reduce global warming emissions by an estimated 20 percent. Indeed, as of 2005, about 42% of U.S. greenhouse gas pollution came from the production of electricity and 27% from the production of heat.It is difficult to quantify the environmental impact of a global energy recovery implementation in some sectors. The main impediments are:

Lack of efficient technologies for private homes. Heat recovery systems in private homes can have an efficiency as low as 30% or less. It may be more realistic to use energy conservation like thermal insulation or improved buildings. Many areas are more dependent on forced cooling and a system for extracting heat from dwellings to be used for other uses are not widely available.

Ineffective infrastructure. Heat recovery in particular need a short distance from producer to consumer to be viable. A solution may be to move a large consumer to the vicinity of the producer. This may have other complications.

Transport sector is not ready. With the transport sector using about 20% of the energy supply, most of the energy is spent on overcoming gravity and friction. Electric cars with regenerative braking seem to be the best candidate for energy recovery. Wind systems on ships are under development. Very little work on the airline industry is known in this field.

See also

Efficient energy use

Energy conservation

DWEER

List of energy storage projects

Mechanical vapor recompression

Pinch analysis

References

External links

Energy Recovery from the Combustion of Municipal Solid Waste -EPA

26 Projects Funded: Energy Recovery Methods Studied with ASHRAE Undergraduate Grants

Heat Recovery in Industr


Mission
At Energy Recovery, our mission is to create innovative solutions that protect the environment and increase efficiency in the water and energy industries.

Vision
Energy Recovery sees itself as the go-to company for turbines, pumps, and valves of the future. We strive to make energy and water reuse more efficient, accessible, and sustainable. We are dedicated to developing clean energy solutions and providing the highest quality products and service to our customers and partners.

Key Team

Mr. William W. Yeung (Chief Legal Officer & Sec. to the Board)

Mr. Rodney Clemente (Sr. VP of Water)

Mr. Nocair Bensalah (VP of Operations)

Mr. James Siccardi (VP of Investor Relations)

Ms. Kelley Vendeland (VP of Marketing & ESG)

Ms. Stacy Proctor (VP of HR)


Recognition and Awards
Energy Recovery has earned many prestigious awards, including The White House's 'Critical Impact Initiative' in 2017, the C3E Technology Prize from the U.S. Department of Energy in 2015, the World Economic Forum Technology Pioneer Award in 2014, and many more.

References
Energy Recovery
Leadership team

Mr. Yu-Lang Mao (Pres, CEO & Chairman)

Mr. Joshua Ballard CFA (Chief Financial Officer)

Dr. Farshad Ghasripoor (Chief Technology Officer)

Products/ Services
Energy, Industrial, Manufacturing
Number of Employees
100 - 500
Headquarters
San Leandro, California, United States
Established
1992
Company Registration
SEC CIK number: 0001421517
Net Income
5M - 20M
Revenue
100M - 500M
Traded as
ERII
Social Media
Mon Feb 26 2024
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