[home] [Personal Program] [Help]

---

Session: Poster session & Sponsor Exhibition
Session starts: Monday 07 October, 14:00

---

Byung-Sik Park (Korea Institute of Energy Research & University of Science and Technology, South Korea)
Muhammad Usman Aslam (University of Science and Technology, South Korea)
Jae Yong Lee (Korea Institute of Energy Research)
Dong-Hyun Lee (Korea Institute of Energy Research)

Abstract:
This paper presents a model describing dynamics of two-phase flow heat exchanger in variable temperature heat source, based on moving boundary approach. Organic Rankine Cycle (ORC) systems are popular for recovering energy from low temperature heat sources. At small scale, ORC units are reliable and cost effective. Generally the power systems are designed to be operated with constant temperature heat source. Waste heat recovery applications may involve scenarios where source temperature may vary. If system operates at variable heat source temperature, evaporator pressure and outlet enthalpy of working fluid would vary due to variation in amount of heat supplied, which in effect will change the operating conditions of rest of the system.