PCM Phase Change Material Air Condition Electric Peak Load Shifting
If you are versed with Phase Change Material, then you may directly read the matter below the horizontal line. If you need to understand more then you may go in the following order:
Introduction to PCM Air Condition
Phase Change Material Non Hazardous Salts
Peak Load Shifting in AC Air Condition
After reading this much you may shift below the horizontal line. You may also check the following pages:
Energy Saving tips for Lighting, Insulation and Windows, Renewable Energy, Air Change Rate etc
Phase Change Material for Electronic Comfort
PCM for Green House.
Peak load shifting is the easiest application of phase change materials. In the summer time, air conditioners and most industrial equipment tends to naturally operate during the middle of the day when the sunís heat is the greatest and people are at work running equipment. Peak demand for electricity would be many times greater than the baseline load. This variation leads to a differential pricing system for peak and off peak periods of energy use. Economic benefit can be achieved if some of the peak load could be shifted to the off peak load period that can be achieved by thermal energy storage for heating and cooling buildings.
Peak Load Shifting for Offices & Shops used in Day Time
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The figure describes the night time charging and day time utilization process during both heating and cooling seasons for a storage system comprising of two different PCM integrated into a reverse cycle refrigerative heat pump system utilizing off peak power. Using a thermal storage system containing two different PCM can reduce the required capacity and the initial cost of air conditioner for a building. It also can shift a portion of the energy load (heating and cooling) to off peak hours, when electricity cost is lower.
With user cooperation, peak demand can be reduced to being 50%. This not only benefits the consumer, who pays non-peak tariff but also the energy provider and the state and the world as a whole.
This method has been described by:
Dr Frank Bruno Ph.D., B.Eng.(Hons.) of Sustainable Energy Centre, University of South Australia.
A. Pasupathy and R. Velraj, Department of Mechanical Engineering, College of Engineering ,Anna University, Chennai Ė 600 025
An excellent method that practically switches off Air condition cooling AC and heater for almost 6 months a year and uses peak-load shifting for other months is described in Phase Change Material Air Condition.
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