energy hunter application

Alfa Laval Energy Hunter

Savings in electricity

Alfa Laval Energy Hunter

Savings in fuel costs

Alfa Laval Energy Hunter

Savings with efficiency and uptime

Energy Hunter – HVAC - Chiller condenser protection

The condenser of a chiller using open cooling tower water is prone to develop a layer of CaCO3. Rule of thumb in the industry is that a 1 mm coating of CaCO3 inside the tubes, can mean 3°C higher condensation temperature of the refrigerant gas at the condenser. This equates to approximately 10% higher condensation pressure and higher electricity consumption of the compressor.

Energy Hunter – Utilities - ​​​​​​​Heat recovery from air compressors

72% is the conversion of electricity to waste heat with air compressors. Compressed air and lubricating oil are often cooled with in built heat exchangers, releasing the heat to the atmosphere. Cooling the air also helps the dryer run effectively, reducing moisture content for critical air equipment.

Energy Hunter – Utilities - Cooling tower interchanger​​​​​​​

Plant cooling equipment protection from open cooling tower mineral deposits CaCO3 and Chloride ions, minimum fouling from debris. Savings are in maintenance-free operation of plant equipment, lower pumping costs avoiding pipe diameter reduction and replacement of corroded equipment.

Energy Hunter – HVAC - AHRI performance certification

Can you accurately measure 0.5°C? What happens to the operation of the chiller if the installed pressure breaker gasketed plate heat exchanger under performs by 0.5 °C? Lower evaporation temperatures lead to higher lift with the chiller compressor and increasing electricity consumption of up to 3%. Installing Performance Certified gasketed plate heat exchangers provides a payback period of under three years.

Energy Hunter – Utilities - Heat recovery from warm wastewater

With Alfa Laval wide gap plate technology, heat recovery is efficient at the same time blockage free for wastewater containing < 5 mm particles or fibres. Wastewater temperatures as low as 35°C and as low 10 m³ per hour can save 175 kilowatts (150,000 kCal/hr) with a payback period of less than six months, preheating the boiler feed water to 30°C.

Energy Hunter – Utilities - Shell-and-tube replacement

Based on the right channel type of gasketed plate heat exchanger and proportional heat surface area. Savings are with less footprint – including removal space for tube bundle, less hold up volume hence faster response times, easier and quicker maintenance and heat losses to the atmosphere from the shell-and-tube surface. 

Energy Hunter – HVAC - Free cooling with chiller bypass

A chiller is one of the highest running cost equipment in many plants. Those with a water-cooled condenser can win in two ways with an Alfa Laval gasketed plate heat exchanger. One to protect the chiller from CaCO3 coating on the tubes, saving electricity with lower condensing temperature and pressure and the other is by turning the chiller off up to 30 days per year, depending on the geographic location and the wet-bulb temperature. AHRI Performance Certification is vital as approach temperatures of 1°C are needed and who can measure 0.5°C!

Energy Hunter – Utilities - Heat recovery from waste flash steam

All industries using steam as a heat source have problems with steam management. With a simple cyclone separator at the condensate collection point, flash steam can be condensed, heating water up to 80°C. Recovering 500 kg per hour of flash steam can save up to 5,000 Euro per month. The return on investment is less than 3-6 months.

Energy Hunter – Utilities - Air compressor heat exchanger replacement

The in-built heat exchangers delivered with the air compressor, require the open cooling tower to be a well-maintained, regularly flushed and treated, to avoid accumulation of calcium carbonate and chloride ions. If not, the brazed plate heat exchanger or shell-and-tube, could fail and require urgent replacement. A gasketed plate heat exchanger can be offered as a solution, that is more durable, against the harmful effects of calcium carbonate and chloride ions. ​​​​​​​

Energy Hunter – HVAC - Energy savings in ammonia chillers and heat pumps

The condenser and evaporator of the chiller can either be of an air heat exchanger type or be cooled/heated by e.g. glycol, brine or water. By utilizing the later technology, the refrigerant charge can be kept to a minimum and the complete refrigeration system can be placed in one machine room connected to air coolers, energy wells, dry-coolers through secondary systems using a less sensitive media such as water, glycol or even CO2.​​​​​​​

Energy Hunter – Utilities - Heat recovery from waste flash steam

All industries using steam as a heat source have problems with steam management. With a simple cyclone separator at the condensate collection point, flash steam can be condensed, heating water up to 80°C. Recovering 500 kg per hour of flash steam can save up to 5,000 Euro per month. The return on investment is less than 3-6 months.

Energy Hunter – Utilities - Air compressor heat exchanger replacement

The in-built heat exchangers delivered with the air compressor, require the open cooling tower to be a well-maintained, regularly flushed and treated, to avoid accumulation of calcium carbonate and chloride ions. If not, the brazed plate heat exchanger or shell-and-tube, could fail and require urgent replacement. A gasketed plate heat exchanger can be offered as a solution, that is more durable, against the harmful effects of calcium carbonate and chloride ions. ​​​​​​​

Energy Hunter – Utilities - Boiler protection

Especially for retrofit applications, the building circuit can contain debris, mud, CaCO3 and oxygenated water. The CaCO3 can bake at 300°C plus fuel temperatures and with thermal expansion/contraction crack the boiler’s heater. Two identical buildings located side by side, one with gasketed plate heat exchanger protection and the other without, has fuel costs 30% less, as with protection, the boiler heater does not have a coating of CaCO3.

Energy Hunter – Utilities - Boiler protection

Especially for retrofit applications, the building circuit can contain debris, mud, CaCO3 and oxygenated water. The CaCO3 can bake at 300°C plus fuel temperatures and with thermal expansion/contraction crack the boiler’s heater. Two identical buildings located side by side, one with gasketed plate heat exchanger protection and the other without, has fuel costs 30% less, as with protection, the boiler heater does not have a coating of CaCO3.

Alfa Laval Energy Hunter for Industrial Energy Efficiency

Alfa Laval Energy Hunter helps industries explore opportunities to recover waste heat, improve heat-transfer performance and reduce avoidable energy losses across process, utility and HVAC systems.

Surya Sankara Trading Pvt. Ltd. supports industrial customers in Hyderabad, Telangana and other South Indian locations with preliminary application discussions for heat recovery and energy-efficiency opportunities involving Alfa Laval heat-transfer technologies.

Surya Sankara Trading Pvt. Ltd. is an Authorised Distributor for Alfa Laval products.

What Is Alfa Laval Energy Hunter?

Alfa Laval Energy Hunter is an industrial energy-efficiency approach focused on identifying energy that is currently being rejected, wasted or inefficiently transferred within a plant.

Recoverable energy may be found in:

  • Warm wastewater

  • Process cooling streams

  • Compressor cooling systems

  • Condensate and flash steam

  • Refrigeration condensers

  • Open cooling-water circuits

  • Boiler systems

  • Exhaust or discharge streams

  • Simultaneous heating and cooling processes

The objective is to examine whether available waste heat can be transferred to another process that requires heating, thereby reducing dependence on additional fuel, steam, electricity or cooling capacity.

Energy-saving potential varies from one plant to another. It must be calculated using actual temperatures, flow rates, operating schedules and utility costs.

How an Industrial Energy Review Works

An initial industrial energy-efficiency discussion normally considers four questions:

  1. Where is heat currently being rejected?

  2. Which processes require heating at the same time?

  3. Can the two streams be connected safely through a heat exchanger?

  4. Is the recoverable energy sufficient to justify the investment?

The technical review may include:

  • Hot-stream temperature and flow rate

  • Cold-stream inlet and required outlet temperatures

  • Hours of operation

  • Fluid properties

  • Fouling and solids content

  • Pressure and pressure-drop limitations

  • Corrosion and material requirements

  • Distance between the heat source and heat user

  • Existing heating and cooling costs

  • Available installation space

  • Process-safety requirements

A reliable recommendation cannot be made solely from pipe size or equipment capacity.

Potential Benefits of Energy Hunter Opportunities

Depending on the application and verified operating data, an energy-recovery project may help a plant:

  • Reduce purchased fuel or steam consumption

  • Lower heating or cooling demand

  • Recover useful energy from wastewater

  • Improve heat-transfer efficiency

  • Reduce unnecessary cooling-tower load

  • Improve chiller or refrigeration-system operation

  • Protect equipment from contaminated cooling water

  • Reduce water or utility consumption

  • Improve process-temperature control

  • Reduce operational emissions associated with energy use

Savings and payback periods should always be calculated for the individual plant. No fixed saving, performance improvement or return on investment should be promised before completing the necessary technical and commercial assessment.

Heat Recovery from Warm Wastewater

Many industrial processes discharge wastewater that remains warmer than the incoming process or utility water. When the temperature, flow and operating schedule are suitable, part of this energy may be recovered through a heat exchanger.

Recovered heat may potentially be used to:

  • Preheat process water

  • Preheat boiler make-up water

  • Heat cleaning water

  • Support another low-temperature process

  • Reduce demand on an existing heater

Wastewater may contain fibres, particles or other contaminants. Heat-exchanger type, channel size, material and cleaning requirements must therefore be selected according to the actual wastewater characteristics.

Heat Recovery from Air Compressors

A substantial portion of the electrical energy supplied to an air compressor eventually appears as heat. Depending on the compressor design and plant requirements, some of this heat may be recoverable from cooling oil, cooling water or hot compressed air.

Potential uses include:

  • Boiler-feed-water preheating

  • Process-water heating

  • Cleaning-water preparation

  • Space or utility heating

  • Other compatible low-temperature duties

The feasibility depends on compressor operating hours, available temperature, simultaneous heat demand and the existing cooling arrangement.

Cooling-Tower Interchanger

Open cooling-tower water may carry suspended matter, mineral deposits and other contaminants into valuable process equipment.

An appropriately selected plate heat exchanger can create a separation barrier between the open cooling-water circuit and a cleaner closed circuit. This arrangement may help protect chillers, process machinery and other equipment from contamination.

The evaluation should include water quality, required temperatures, flow rates, pressure drop, fouling tendency and cleaning access.

Chiller Condenser Protection

Deposits inside a water-cooled chiller condenser can interfere with heat transfer and increase the temperature difference required for condensation. This can affect refrigeration-system efficiency.

A plate heat exchanger may be considered to isolate the chiller condenser from an open or contaminated cooling-water circuit. However, its suitability and expected benefit must be calculated using actual water quality, temperatures, flow rates and chiller operating conditions.

Free Cooling with a Chiller Bypass

When ambient and cooling-water conditions permit, a plate heat exchanger may allow cooling to be provided without operating the chiller compressor at its normal load.

Free-cooling availability depends on:

  • Geographic location

  • Seasonal wet-bulb temperature

  • Required process-water temperature

  • Cooling-tower performance

  • Heat-exchanger temperature approach

  • Operating schedule

  • Pumping-energy requirement

The number of available free-cooling hours must be calculated from local climate and plant data.

Heat Recovery from Flash Steam

Flash steam may be produced when high-pressure condensate enters a lower-pressure system. Where plant conditions permit, some of this thermal energy may be recovered instead of being discharged.

A properly engineered system may use the recovered energy for compatible water-heating or process duties. Steam pressure, condensate flow, temperature, water quality, operating continuity and safety requirements must all be considered.

Boiler and Heating-System Protection

Dirty or oxygenated return water can contribute to deposits, corrosion and heat-transfer problems in certain boiler and heating systems.

A plate heat exchanger may be used to hydraulically separate the boiler circuit from a secondary circuit. This can help maintain different water-quality conditions on each side while transferring the required heat.

The design must account for temperatures, pressures, water treatment, expansion arrangements and applicable boiler-system requirements.

Replacing a Shell-and-Tube Heat Exchanger

In suitable applications, an Alfa Laval plate heat exchanger may be evaluated as an alternative to an existing shell-and-tube unit.

Possible considerations include:

  • Compact footprint

  • Reduced fluid hold-up

  • Efficient heat transfer

  • Close temperature approach

  • Accessible heat-transfer surface

  • Possibility of capacity adjustment in gasketed models

  • Maintenance requirements

  • Available installation and removal space

Replacement should be based on a full thermal and mechanical assessment. Connection size alone is insufficient for selecting a replacement heat exchanger.

Energy Efficiency in Ammonia Refrigeration and Heat Pumps

Plate heat exchangers can perform evaporating, condensing, liquid-cooling and heat-recovery duties in industrial refrigeration and heat-pump systems.

Their compact construction can support efficient heat transfer and reduced refrigerant charge in certain system configurations. Refrigerant compatibility, secondary-fluid properties, design pressure, temperature and applicable refrigeration-safety requirements must be evaluated.

Industries That May Benefit

Energy Hunter opportunities may be relevant to:

  • Food and beverage processing

  • Breweries and distilleries

  • Dairy processing

  • Pharmaceutical manufacturing

  • Chemical and petrochemical plants

  • Edible-oil processing

  • Sugar manufacturing

  • Pulp and paper production

  • Industrial wastewater treatment

  • Refrigeration and cold-storage facilities

  • Power and utility plants

  • General manufacturing

The existence of a hot stream does not automatically make heat recovery feasible. The heat source and heat requirement must occur at compatible temperatures and operating times.

Industrial Energy-Efficiency Support in Hyderabad and South India

Surya Sankara Trading supports industries in Hyderabad, Telangana and other South Indian locations with preliminary Energy Hunter application discussions.

Customers can share process data for:

  • Waste-heat recovery

  • Cooling-system isolation

  • Plate heat-exchanger replacement

  • Boiler-circuit protection

  • Chiller condenser protection

  • Compressor heat recovery

  • Wastewater heat recovery

  • Heating and cooling optimisation

Following the preliminary review, the requirement can be coordinated for appropriate technical evaluation. Final equipment selection must be based on verified process and design conditions.

Why Contact Surya Sankara Trading?

  • Authorised Distributor for Alfa Laval products

  • Hyderabad-based industrial contact point

  • Application-focused enquiry coordination

  • Support for heat-transfer and energy-recovery discussions

  • Assistance in collecting process data

  • Support for industrial customers in Telangana and South India

Frequently Asked Questions

What is Alfa Laval Energy Hunter?

Alfa Laval Energy Hunter is an industrial energy-efficiency approach for identifying opportunities to recover waste heat, improve heat transfer and reduce avoidable utility consumption.

Is Energy Hunter a physical product?

No. Energy Hunter is not one standalone product. It is an application-based approach that may identify opportunities involving plate heat exchangers and other appropriate heat-transfer solutions.

How can waste heat be recovered in an industrial plant?

A heat exchanger can transfer energy from a hot waste or process stream to another stream requiring heating. The two fluids remain in separate flow channels while thermal energy passes between them.

What data is needed for an Energy Hunter assessment?

Required information normally includes fluid names, flow rates, inlet and outlet temperatures, operating hours, pressures, allowable pressure drop, utility costs and heat-source availability.

Can heat be recovered from industrial wastewater?

Yes, when wastewater temperature, flow rate and operating schedule provide useful recoverable energy. Solids, fibres, fouling, corrosion and cleaning requirements must be evaluated.

Can heat be recovered from an air compressor?

Potentially, yes. Compressor cooling systems may reject heat that can sometimes be used for water or process heating. Feasibility depends on the compressor and simultaneous heat demand.

What is a cooling-tower interchanger?

It is a heat exchanger installed between an open cooling-water circuit and a cleaner closed circuit. It transfers heat while helping isolate valuable equipment from contaminated tower water.

Can a plate heat exchanger reduce chiller energy consumption?

It may improve the system by protecting the condenser or enabling free cooling under suitable conditions. The actual reduction must be calculated from operating and climate data.

Can Energy Hunter reduce boiler fuel consumption?

Potentially, if recoverable heat can preheat boiler make-up water or another suitable stream. The benefit depends on heat availability, temperature and hours of operation.

How much energy can an industrial plant save?

There is no universal percentage. Savings depend on temperatures, flow rates, operating hours, equipment performance and energy costs. A site-specific calculation is required.

How is project payback calculated?

Payback compares the installed project cost with the expected annual savings after considering operating hours, fuel or electricity tariffs, pumping costs and maintenance requirements.

Can existing shell-and-tube heat exchangers be replaced?

In suitable duties, they can be evaluated for replacement by plate heat exchangers. A thermal and mechanical review is required before determining suitability.

Does Surya Sankara provide Energy Hunter support in Hyderabad?

Surya Sankara Trading supports preliminary industrial energy-efficiency and heat-recovery discussions for customers in Hyderabad, Telangana and other South Indian locations.

Is Surya Sankara Trading an Alfa Laval authorised distributor?

Yes. Surya Sankara Trading Pvt. Ltd. is an Authorised Distributor for Alfa Laval products.

Request an Energy Hunter Application Discussion

Share your hot and cold stream data with Surya Sankara Trading to explore whether an industrial heat-recovery or energy-efficiency opportunity may exist.

Please provide:

  • Fluid names

  • Flow rates

  • Inlet and required outlet temperatures

  • Operating hours

  • Pressures

  • Existing utility source

  • Fuel or electricity cost

  • Plant location

Mobile: +91 97042 70101
Email: suryasankaratraders@gmail.com
Location: Hyderabad, Telangana

Request an Energy Review

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