Economizers

Economizer Types

Economizers are critical devices for waste heat recovery in industrial plants. They are produced in various types according to different usage areas and needs. These include

• Finned Economizers: Finned tubes are used to provide high heat transfer. It is generally preferred in applications with low temperature difference and in processes where the need for cleaning is low.
• Finless Economizers: They are simpler designs and are preferred in processes with a high probability of clogging and easy cleaning.
• Condensing Economizers: Made of stainless steel to prevent condensation of moisture and sulfur in waste gases, these models are resistant to harsher operating conditions.
• Double Row Economizers: By using two separate rows of pipes, they can recover more heat and meet large capacity requirements.
• Modular Economizers: These flexible models can be easily adapted and expanded to meet different industry needs.

Fields of Usage

Economizers are used in a wide range of applications to increase energy efficiency and reduce operating costs. The main areas of use are as follows:

• Heat Recovery Systems: Heating and process needs can be met by recovering waste heat.
• Industrial Boilers: Optimizes energy consumption by recovering heat from waste gases in boiler systems.
• Power Generation Plants: Increases energy efficiency by utilizing waste gases generated during electricity generation.
• Chemical and Pharmaceutical Industry: Reduces production costs by recovering high heat generated in processes.
• Food and Beverage Production: Utilizes heat recovery to achieve energy efficiency.
• Oil and Gas Plants: Since these industries have high temperature differences and high energy consumption, economizers offer an efficient solution.

Manufacturing Components

The production of economizers requires carefully selected materials and engineering solutions to ensure high durability and performance. Basic manufacturing components:

• Tubes: The tube material is extremely important for economizers to conduct heat efficiently. Materials such as stainless steel, carbon steel or aluminum alloys are used.
• Coils: Specially designed coils are used to ensure effective cooling of the exhaust gas. Finned or finless designs increase heat transfer efficiency.
• Systems Designed According to Capacity: Economizers are manufactured with customized pipe designs and heating surfaces for a specific capacity.
• Stainless Steel Coatings: Stainless steel coatings are used in condensing economizers to withstand the effects of condensed water.
• Insulation Materials: High quality thermal insulation materials are used to minimize heat losses.

Advantages of Economizers

• Energy Savings: The heat recovered from waste gases significantly reduces energy consumption.
• Environment Friendly: Environmental impact is minimized by increasing energy efficiency.
• Higher Productivity: By increasing the efficiency of the systems, more output is achieved with less energy in production processes.
• Long Life: High-quality materials and engineering solutions ensure long-lasting devices.
• Low Operating Costs: Lower energy costs significantly reduce operating expenses.

Economizers Recovery Depreciation Period Calculation

The recovery depreciation period of economizers is a calculation that shows how long the cost of the device will be recovered with the energy savings it provides. This period is found by comparing the investment cost of the economizer with the annual energy savings.

The following formula can be used when calculating the amortization period:

Depreciation Period (Year) = Investment Cost / Annual Energy Savings

Step by Step Calculation:

1. Investment Cost: The total cost of the economizer (including purchase price, installation, transportation, etc.) is determined. This is the total investment cost of the device.
2. Annual Energy Savings: The amount of annual energy savings provided by the economizer is calculated. This saving is based on how efficiently the economizer recovers waste heat and the financial value of the energy savings.
3. Depreciation Period: We divide the investment cost by the annual energy savings. The result gives the recovery time of the economizer.

Factors to Consider:

• Energy Price Changes: Energy prices can change over time, which can affect the annual savings.
• Efficiency: The efficiency of the economizer can change over time. Factors such as maintenance, breakdowns and performance degradation can affect the depreciation period.
• Maintenance and Operating Costs: The operation and maintenance costs of the economizer should also be considered in the depreciation period calculation.