This paper presents electricity utilization and saving potential assessment for residential lighting demand side management program. The assessment involves combined Baseline Energy Use method and Analytic Hierarchy Process which represent technical and customer preference approaches, respectively. Residential lighting load curve and lamps’ share of ownership are estimated based on the first me...

Energy crisis, global warming and other environmental issues are what motivate researchers to find new strategies to reduce energy consumption in buildings. Recently, using phase change materials (PCM) in the building’s envelopes has drawn significant attention as an energy-saving method, which helps in increasing the building’s thermal capacity. In the present research, the effects of the ...

A new method pinch analysis is introduced to discuss design optimization of the air-conditioning refrigeration system from the point of view of saving energy and saving material, and the evaluation principle of system economy is built up. The method avoids the defect of traditional design method using experience, easy to realize optimum match between system component parts. c Cp COP F G H M p P...

Effective parameters that can effect on the performance of the separation system consist of operating pressure, operating temperature, reflux ratio, and kind of produce desirable products and different sequences of splits. As take a separation system with optimal performance is dependent on optimization of above mentioned effective parameters. In generally, there are two criteria (as object fun...

One of the industries with high potential for energy saving is the petrochemical industry. Ethylene and propylene production plants (olefin plants) – as a part of the petrochemical industry – are very energy intensive. So, any try to improve their energy consumption efficiency could lead to a high amount of energy saving. Iran’s petrochemical industry uses old technologies and components and du...

Door closers are widely used for doors in commercial buildings, not only for safety purposes but also for reducing the airflow through door openings. This study aimed to develop a method for quickly assessing, in the design phase, the heating and cooling energy cost saving from using an effective door closer. The method developed in this study consists of a stop angle model, airflow model, and ...