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Weima Electric Assists Chang Chun Chemical in Completing Energy Efficiency Upgrades.

2024-07-01 15:48:38 34

Company Introduction

Chang Chun Group, founded in China Taiwan in 1949, has upheld the principles of integrity and excellence for over 55 years. With a focus on technology, quality, and customer service, it has grown into a large enterprise group in Taiwan, with products sold in over fifty countries worldwide.

Chang Chun Chemical (Jiangsu) Co., Ltd., initially invested 296.6 million USD, is located in Changshu Economic Development Zone, Jiangsu Province, covering approximately 100 hectares with over 1,000 employees. It produces twenty-five products and has facilities such as cogeneration plants and ports, current products include polyvinyl alcohol, epoxy resin, amine resin, light-induced corrosion-resistant dry film, plastic barrels, PBT, emulsion adhesives of polyvinyl acetate, and solvents etc..

Project Introduction

TECO MOTORS

At the 2018 China Green Development Conference, the Ministry of Industry and Information Technology (MIIT) announced plans to accelerate the green transformation of traditional industries, emphasizing energy-saving supervision for key energy-consuming enterprises and equipment. Accordingly Chang Chun Chemical responded to MIIT's call to initiate plans to upgrade the entire factory's energy efficiency.

Solutions

TECO MOTORS

Equipment involved in Chang Chun Chemical's energy efficiency upgrade include fans, pumps, mixers, conveyors, and compressors etc. Although these equipment were from different brands, after comprehensive consideration, Weima Electric provided a solution featuring explosion-proof motors of the TEB4 model with IE4 energy efficiency standards from TECO.

The upgrade project took four years to be completed from 2018 to 2022, during this period Weima Electric supplied Chang Chun Chemical with a total of 882 TECO TEB4 explosion-proof motors ranging from 0.75 kW to 75 kW, 14,409 kW in total.

Customer Value

TECO MOTORS

After this energy efficiency upgrade, Chang Chun Chemical's motor efficiency improved from IE2 to IE4, not only aligning with MIIT's requirements, but also achieving energy savings and reducing running costs.

By rough calculations, after the energy efficiency upgrade for Chang Chun Chemical, their annual electricity cost saves approximately 3.42 million RMB which will reduce losses by about 3%.

Moreover, standardizing all equipment under the TECO brand will facilitate easier maintenance in the future.

  • Energy Saving Calculation Formula:

    TECO standard IE2 motor: 55 kW-4P

    Energy efficiency grade: GB3/IE2

    Efficiency value: 93.5%

    TECO IE4 motor: 55 kW-4P

    Energy efficiency grade: GB1/IE4

    Efficiency value: 95.7%

    Electricity Cost Savings Calculation:

    1) Total Cost = Initial Cost + Operational Cost

    2) Annual Electricity Cost Savings (IE2->IE4) = kW * (100/IE2 - 100/IE4) * operating hours per year * electricity price per kWh

    3) Savings Calculation Method:

    Example: For a 55 kW-4P motor operating 8000 hours annually,

    When upgrading from IE2 efficiency of 93.5% to IE4 efficiency of 95.7%,

    Annual electricity savings are calculated as:

    55 * (100/93.5 - 100/95.7) * 8000 = 10,824


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