An assessment of the performance of cool storage system based on Taiwan experiences | |
| Author | Jang Jean, Jin-liung |
| Call Number | AIT RSPR no. ET-91-02 |
| Subject(s) | Cooling load Air conditioning |
| Note | A research study (12 credits) submitted in partial fulfillment of the requirement for the degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | Over the past several years, numerous utilities have sponsored programs and offered incentives to encourage improved energy efficiency in buildings. One of the most promising load management technologies is the application of thermal storage for cooling commercial or office buildings. Coo] storage is generally used as an electrical load management strategy to reduce on-peak electric demand by shifting the compressor's operation to off-peak hours, when the electricity charges are lower. It is applicable to both new and existing buildings. Cooling energy is stored. in the night-time (using a medium such as water or ice) to be used in the next day during occupied hours, which also coincide with higher peak-period utility rates. The technology benefits both building owners and managers who wish to lower their electricity costs, and electric utilities who generally want to increase load factors and def er the need for new generating capacity. Collecting the necessary data has been difficult, there have been very few studies to assess the performance of actual cool storage installations. This paper contains information on six actual installations of ice storage air-conditioning systems tested by the Industrial Technology Research Institute (ITRI) in Taiwan. The material covered in these reports is not limited to "success stories" but also includes failures, barriers, uncertainties, and information gaps. In addition, I attempt to identify and, if possible, reconcile variations or discrepancies among data sources. Cost-effectiveness of the cool storage systems vary greater for the buildings examined. Simple payback periods of less than one year has been observed, yet the payback periods for two systems are much larger. The context also includes economic performance of a sample ice storage system under Bangkok's climatic condition. There is no "best" system. System choice is dictated by factors such as building type, load profile and climate, status of existing equipment, first cost (considering utility or tax incentive), and electricity rate structure. |
| Year | 1991 |
| Type | Research Study Project Report (RSPR) |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Surapong Chirarattananon; |
| Examination Committee(s) | Mora, Jean-Claude;Bhattacharya, Sribas C.; |
| Scholarship Donor(s) | Taipei Government; |
| Degree | Research Studies Project Report (M.Eng.) - Asian Institute of Technology, 1991 |