A Habib-Ur-Rehman creator S.C. Bhattacharya Chairperson Supachart C. Examination committee Surapong Chiraratananon Examination Committee Norwegian Agency, Norway Scholarship donor text series technical report th Bangkok Asian Institute of Technology 1992 continuing eng 88 leaves : ill. This report presents t h e resul ts of a feasibility study of ice storage for process cooling in three industrial plants in Th ai land. The s t.ud ied i nd ustri al plan ts a.re Aj .inomo to Co.Ltd, Nestl e (Thai l and ) and Bangkok Live Stock Co. Lt d (C.P Group ) . Aj inomoto p l ant comes under TOD rate structures.The ice storage system is Bized b y con sidering option I, i. e , c h arging of ice storage d u ring off - peak hours only and option II, i.e, charging of ice storage during off-peak and partial peak hours to s hift the peak refrigeration electricity demand to off-peak and partial peak period. An ice storage in Ajinomoto plant operating under options I and II would have a simp l e payback periods of abou t 6 and 5 years respectively under the present electricity rate structure. Nest l e (Tha i land ) comes under the f l at rate structure. The power consumption of refr i gerat i on system is about 20 % of the tota l pl ant electrical demand. Ice storage is sized for the exi s t ing plant and for a new plant of t he same cooling capacity . I n this plant, under t he present rate structure, ice storage for t he existing plan t is not economical l y feas i bl e but for a new pl ant it woul d be feasible. In Bangkok Live Stock Co . Ltd, the ice storage is i nstalled to provide the i ce maker and air-conditioning cooling l oad by usi ng the extra capacity of high stage compressors, i nstead of conventiona l chillers. In this plant the existing ice storage is more economically attractive as compared to alternat i ve conventional system to provide the same cool ing l oad. The investment cost of ice storage was compared with demand charge savings using s imple paybacl< periods, net present va l ue and internal rate of ret ur n . It was found that in Ajinomoto pl ant under t he present, TOD 1 and TOD 2 rate structures, option II, storage system presents a better economi c feasi bi lity, especia l ly when demand charge during peak per i od is higher and energy charge during off- peak period is smaller. A research study s ubmitt ed in partial fulfill ment of the requirement for the degree of Master of Engineering. Research Studies Project Report (M.B.A.) - Asian Institute of Technology, 1992 Heat storage Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B16392 http://203.159.5.9/ait-thesis/detail.php?q=B16392 271198 20260818113549.0