The feasibility of solar-powered multi-effect LiBr-H2O absorption chillers is investigated under different climate conditions, and three configurations of solar absorption chillers are proposed with respect to the type of the chiller. In the first configuration, a single-effect absorption chiller is coupled with evacuated tube collectors (ETCs), while parabolic trough collectors (PTCs) are utilized to run double- and triple-effect LiBr-H2O chillers in the second and third configurations, respectively. A simulation model for each configuration is developed in TRNSYS 17 environment.
High-temperature absorption chillers (double-effect and triple-effect) have a higher coefficient of performance (COP) than single-effect chillers. This can reduce the collector’s footprint and cost in a solar-cooling plant. Though single-effect, absorption chiller-based solar-cooling systems have been studied for the past 20 years, very little information is available on the performance benefits of high-temperature solar-cooling systems.
One of the major obstacles to improving solar thermal cooling technologies is the high operating temperature requirements of most solar thermal cooling systems. This paper reviews recent advances that could reduce the required heat source temperatures for solar desiccant cooling to the range of 50°C–60°C. These approaches include (i) isothermal dehumidification (e.g. two-stage dehumidification or internal cooled dehumidification) and (ii) pre-cooling of the entry air with ambient heat sinks (e.g. indirect evaporative cooling or geothermal exchange).
This report is an output from a scoping study of living laboratories (RP3005: CRC Living Laboratory Framework), which examined what living labs are, their benefits and what they need to be successful. It is primarily intended to inform partners in current and prospective CRCLCL projects, so that they might consider these aspects of living laboratories when designing and implementing their projects.
The CRC Low Carbon Living Launch included a Workshop for CRC LCL Participants with the aim to update participants on the CRC, its plans to date and to obtain their input into what they want to be included in the CRC LCL Research projects.
Program 3: Engaged Communities presented "Pathways to built environment emissions reductions".