Abstract
Numerical models of a standard organic Rankine cycle (ORC) system and the heat exchangers comprising the system are developed as a design tool platform for a flexible design. The objective is design of an efficient, cost-effective ORC power plant that can effectively exploit low-grade industrial waste heat or low to medium-temperature geothermal fluid. Typical heat exchanger configurations were modelled, including the circular finned-tube evaporator, air-cooled condenser, and flat-plate preheater. A published ORC configuration and process conditions from experiments are used for the thermodynamic cycle analysis in order to validate of the system model. Heat transfer correlations and friction factors are described for the modelling of the heat exchangers. The simulation results of the ORC system provide the design requirements for the heat exchangers. Geometric specifications and performance of the heat exchangers are determined by iterative simulations.
| Original language | English |
|---|---|
| Pages (from-to) | 704-721 |
| Number of pages | 18 |
| Journal | International Journal of Sustainable Energy |
| Volume | 33 |
| Issue number | 3 |
| Early online date | 18 Apr 2013 |
| DOIs | |
| Publication status | Published - 2014 |
Keywords
- air-cooled condenser
- finned-tube evaporator
- numerical modelling
- organic Rankine cycle
- plate type heat exchanger
- thermal system modelling
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- General Energy
- Process Chemistry and Technology
- Fluid Flow and Transfer Processes
