Abstract
In order to strengthen present society, renewable resources of deep ocean water (DOW) have been model-analyzed in a case of resort being planed in Taiwan. After using the low temperature energy of 580,000 m3/day of DOW for air-conditioning of buildings with energy saving of 87%, a further energy saving of 63% is expected for cooling an electric generator by the heated DOW. Electricity of 613 MWh/year is expected to be generated by the thermal conversion of temperature difference between the waste heat derived from combusting garbage and DOW, and a possibility of temperate vegetable and fruit production was also checked under tropical climate by cooling soil with DOW. By supplying tap water of 42,000 m3/day for 160,000 people in the resort as well as the neighbors produced by desalination of DOW, a significant saving of resources could be expected compared using surface seawater. DOW will finally be discharged to the sea after removing the nutrient by cultivating seaweeds. The present study is a model analysis of saving energy and resources due to multi-step utilization of DOW resources.
