Performance Estimation of Vertical Inflow Diffuser for Temperature-stratified Type Thermal Storage Tank by CFD Analysis: Effect of Tank Water Level and Step Change of Flow Rate on Temprature Distribution

摘要

Thermal energy storage air-conditioning system has been introduced in many buildings because it will contribute to electric-load leveling and business continuity plan, which are especially focused on after the Great East Japan Earthquake. In this paper, the effect of water level in storage tank and step change in flow rate into tank on the storage performance of temperature-stratified type thermal energy storage water tank installed in an actual high-rise building was estimated by CFD.