Huynh Kim Tuoc, the director of the Ho Chi Minh City Energy
Conservation Center, said, "Industries in Vietnam still consume exorbitant
amounts of energy due to inefficiency." Statistics show that the energy
efficiency at thermoelectric plants in
The energy
efficiency of industrial steam boiler furnaces in
Energy conservation efforts will help domestic companies considerably reduce their expenditures
The results of energy audits show that industrial energy use
in
Mr. Tuoc added, "If the above matters are resolved
thoroughly,
Energy expenses account for 20-45 percent of total expenditure of a company in the domestic industrial sector. Therefore, energy conservation efforts will help domestic companies considerably reduce their expenditures.
To save energy, companies must first improve energy efficiency and use less energy in stages where it is less necessary. They must increase the capacity coefficient of electrical systems by replacing low-load engines with lower-capacity engines. In addition, companies must utilize natural light and use high-efficiency lighting equipment. Lighting systems must be operated automatically and maintained periodically.
To improve the energy efficiency of electrical engines, pumps and fans, companies can operate them at 65-100 percent of their rated capacity and reduce the time of low-load operation. These systems must also be maintained regularly.
To make steam boiler furnaces energy efficient, it is necessary to ensure the quality of water and increase the temperature of water to a suitable level. In addition, it is necessary to regulate the amount of discharged water. Steam traps must be installed to eliminate steam during the distribution process. Recovering waste steam and heat for reuse purposes is also an effective way to save energy.
Refrigeration equipment and air conditioners are among the most electricity-consuming kinds of products. Companies can use inverters and cold storage facilities to reduce the amount of electricity consumed by these kinds of equipment.
Similarly, inverters can be used to reduce voltage drops on the distribution network and lower the input temperature of air compressors to improve their energy efficiency.
By Lan Phuong - VEN