Application Of Energy Saving Technology Research Articles

Application of Energy-saving Technology on Furnaces of Oil Refining Units

Abstract The level of energy consumption is an integrated oil refinery economics and important indicator of the level of process technology, how to reduce the energy consumption of atmospheric and vacuum distillation unit refinery energy conservation has become a top priority. Atmospheric and vacuum distillation unit energy consumption can be achieved through a variety of ways. With the continuous development of energy conservation, demand lower and lower exhaust gas temperature furnace. But often in the steel pipe waste heat recovery equipment, heat exchangers and other heat transfer surface will produce strong low-temperature dew point corrosion. As so, we focus on is the furnace flue gas waste heat recovery technological applications, and discuss how to prevent low-temperature dew point corrosion, as well as the effect of waste heat recovery.

Energy demand for rural household heating to suitable levels in the Loess Hilly Region, Gansu Province, China

This study was conducted to analyze the status of energy use for heating in rural areas and the energy demands required by rural households to maintain temperatures suitable for the residents to live comfortably. In addition, suggestions to improve the thermal comfort of such families are put forward. In this study, we obtained data regarding temperature changes and energy consumption in two villages in the region through field observations and recorded records, after which we set up trend surface models and calculated the accumulated temperature differences and actual energy consumption for the heating period. We then compared the actual thermal efficiency and the theoretic thermal efficiency in the case of energy-saving technology based on relevant national standards. Although large amounts of fuels were consumed by households for heating, they only met 39.6% and 46.6% of the energy required to maintain a suitable living standard in Zhangguan Village and Hepan Village respectively. However, the current integrated thermal efficiency of energy consumption for household heating is only about 17%. These findings indicate that the inadequate heating in the area is not due to inadequate energy, but to inadequate technology. Therefore, the potential for improving integrated thermal efficiency by the application of energy-saving technologies is enormous.

Thermoeconomics and CO 2-emissions

Strategies of reducing carbon dioxide emissions (CO 2) are evaluated by an optimization model for the Federal Republic of Germany (FRG) that was originally designed to optimize the use of primary energy and the costs of the energy system. The model is extended to included a third objective function which monitors the production of carbon dioxide in the system. By vector-optimization, we find that the application of energy-saving technologies, together with CO 2-removal techniques, may reduce the overall emissions of CO 2 by more than 70%. This combination will increase the total costs of the energy system by nearly 100% and decrease energy consumption by 25%. In addition, we examine compromises between the three objectives. There are conflicting strategies of reducing CO 2-emissons.