Abstract
In recent years, marine renewable energy has received more and more attention due to
concerns regarding energy shortage, global warming and environmental pollution
Marine renewable energy includes tidal energy, current energy, wave energy, osmotic
energy and ocean thermal energy et Recent study predict a global growth of the share for
renewable energy to respond to increasing world energy demand. The OTEC (ocean
thermal energy conversion) power plant is one candidate. OTEC transforms the heat
stored in surface water of tropical oceans into mechanical work to produce useful
energy. The purpose of this study is to make numerical equations about the calculation of
pump energy required in OTEC power generation systems. The results show that the
energy and power of the pump is greatly influenced by OTEC power, pipe type, cold
water discharge, and cold water depth.