SDCS Results and Analysis
Testing of the SDCS is carried out within the environmental chamber. The dehumidifier and regenerator component investigations are conducted separately, presented in Sects. 6.3.1 and 6.3.2 respectively. This approach was taken to simplify the experimental process and to focus on the particular performance of the component. Once the performance of the dehumidifier and regenerator are tested and their performance understood, such that the two processes may be balanced, evaluation of the complete SDCS in Sect. 6.3.3 is possible. Section 6.3.4 discusses a novel liquid desiccant tri-generation system operating scenario, with particular reference to the advantages of integrating SOFC and liquid desiccant air conditioning technology in a building context.
Throughout the testing process, consideration is made to tri-generation system integration. This primarily focusses on the required desiccant solution volumetric flow, and the regenerator thermal input values (hot water flow temperature and volumetric flow). Furthermore, dehumidifier and regenerator simulation results have been provided to validate the developed models presented in Chap. 3, operating with a potassium formate solution. The simulations use the average inlet air temperature, relative humidity and solution temperature/mass concentration. During evaluation of the SDCS the recorded desiccant solution mass concentration ranged from 0.65 to 0.7. A challenging aspect of the experimental work was measuring and maintaining a similar desiccant solution mass concentration between tests. As a result, some variation in experimental results between tests has been observed, however these have been accounted for in the average results presented.
Next, Sect. 6.3.1 presents the results and analysis from the dehumidifier component investigation.