Aspen Plus: Basic Design of Organic Rankine Cycle using T-s Diagram

ORC (organic rankine cycle) working fluids are usually classified as wet, isentropic, or dry. Dry fluids are high molecular mass organic fluids exhibiting positive slope on the T-s diagram. Wet fluids are low molecular mass organic fluids exhibiting negative slopes on the T-s diagram. Isentropic fluids are generally of medium molecular mass, exhibiting infinite or nearly vertical on the T-s diagram. Wet fluids normally require superheating to avoid formation of liquid droplet in the turbine. Therefore, isentropic and dry fluids have been widely proposed for ORC. Nevertheless, if the saturated vapor curve of the dry fluid sharply deflects inwards, the vapor will exit from the turbine with significant degree of superheat thereby unnecessarily adding to the condenser cooling load. The exiting superheated vapor can however be utilized for regeneration between the feed pump and the heater/evaporator to improve the efficiency of the system. In this video we design a R245fa ORC system basically. For a small donation you can download the Aspen Plus, Excel and PowerPoint files from the following link: https://www.paypal.com/donate/?hosted_button_id=FA3ECRHAU3Y62 All Aspen simulations in this channel can be downloaded for a donation. After completing the donation, you will be redirected to the download page: https://www.paypal.com/donate/?hosted_button_id=YNKPF59PG3SKW [email protected]