03411nam a2200433 4500 20260818113549.0 280998s1990 th r 0000|0 eng d .b10029151 AIT Thesis no. ET-90-1 San Chatkaewvorakul A feasibility study on ice storage in an office building in Bangkok Bangkok : Asian Institute of Technology, 1990 159 p. Thesis ; no. ET-90-1 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1990 A feasibility study on ice storage in an office building in Bangkok, which has 24 floors in one block and 2 floors in another block, is described in this thesis. The ice storage under a partial and modified demand-limited design with constant proportion control are considered. It has been found from a preliminary results of an energy audit that the air conditioning system consumed about 61.1% of total building electrical energy consumption and chillers consumed about 51.8% of total electrical energy consumption in air-conditioning (A/C) system. The average coefficient of performance of the chillers is 4.77 at the daytime (450 ton chiller) and 3.45 at the nighttime (50 ton chiller) . The average system efficiency is 1.55 kW/ton. The DOE- 2. lC building energy analysis computer program was used to analyze the energy consumption in the studied building. Conventional heating ventilation air-conditioning (HVAC) system was compared to ice storage systems using simple payback periods, net present value and internal rate of return. It was found that at present electricity rate structure , partial storage is more economically feasible than other operating modes . But under a number of alternative time-of-day (TOD) rate structure, the modified demand-limited storage system present a better economic feasibility, especially when the energy charge for the off-peak period is differentiated from other period. Heat storage Cooling load Surapong Chiraratananon, Chairperson Bhattacharya, Sribas C., Examination Committee Mohanty, B., Examination Committee Lapillonne, Bruno, Examination Committee The Government of France, Scholarship Donor Asian Institute of Technology. Thesis ; no. ET-90-1 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B18305 .b10029151 mnait x 240409 2 951012 m a x 2 mnait mnait mnarc 20 40 Barcode : 30050003105292 CREATED : 1995-10-13 RECORD # : i10012096 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003105284 CREATED : 1995-10-13 RECORD # : i10012102 LPATRON : 1015538 LCHKIN : 2003-02-08 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 3 TOT RENEW : 0 Barcode : 30050120344782 CREATED : 2016-06-15 RECORD # : i13039738 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 43699 43699 0 0 0 0 MAIN MAIN mnait 2026-08-18 10.00 0 AIT Thesis no. ET-90-1 30050003105292 2026-08-18 11:35:49 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 10.00 0 AIT Thesis no. ET-90-1 30050003105284 2026-08-18 11:35:49 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. ET-90-1 30050120344782 2026-08-18 11:35:49 2026-08-18 40