Design and simulation of a solar assisted desiccant-based air handling unit

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dc.contributor.author Angrisani, G.
dc.contributor.author Sasso, M.
dc.contributor.author Roselli, C.
dc.contributor.author Stellato, C.
dc.date.accessioned 2014-08-27T08:00:06Z
dc.date.available 2014-08-27T08:00:06Z
dc.date.issued 2011
dc.description.abstract Paper presented at the 8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Mauritius, 11-13 July, 2011. en_US
dc.description.abstract Desiccant-based Air Handling Units (AHU) can guarantee significant technical and energy/environmental advantages related to the use of traditional ones (with dehumidification by cooling). For these reasons, a test facility has been located in Benevento (Southern Italy), in which a silica-gel desiccant wheel is inserted in an AHU which treats outside air only. For this wheel, the regeneration temperature can be as low as 65 °C, therefore energy savings and emissions reductions are more consistent when the regeneration of the desiccant material is obtained by means of available low grade thermal energy, such as that from solar collectors or cogenerators. In the actual configuration, regeneration is obtained by means of thermal energy recovered from a micro-cogenerator (MCHP, Micro Combined Heat and Power) based on a natural gas-fired reciprocating internal combustion engine, eventually integrated through a natural gas-fired boiler. Future activity aims to reduce the regeneration fossil energy requirements by introducing a solar collector system that substitutes or integrates thermal energy supplied by the MHCP. To this aim, a commercial software has been used to design the solar collector system (collectors type, absorber area, water flow rate…) considering the thermal power and temperature requirements of the regeneration process. The existing AHU and the designed solar collector system have been successively simulated by means of TRNSYS software, in order to evaluate operational data and performance parameters of the system in a typical week of operation, e.g. thermal-hygrometric conditions of air in the mean sections of the AHU, solar collectors efficiency and solar fraction. en_US
dc.description.librarian mp2014 en_US
dc.format.extent 7 pages en_US
dc.format.medium PDF en_US
dc.identifier.citation Angrisani, G, Sasso, M, Roselli, C & Stellato, C 2011, Design and simulation of a solar assisted desiccant-based air handling unit, Paper presented to the 8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Mauritius, 11-13 July, 2011. en_US
dc.identifier.uri http://hdl.handle.net/2263/41794
dc.language.iso en en_US
dc.publisher International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics en_US
dc.relation.ispartof HEFAT 2011 en_US
dc.rights University of Pretoria en_US
dc.subject Design and simulation en_US
dc.subject Solar assisted desiccant-based air handling unit en_US
dc.subject Regeneration en_US
dc.subject MCHP en_US
dc.subject Micro Combined Heat and Power en_US
dc.subject Thermal energy en_US
dc.subject Thermal-hygrometric conditions of air en_US
dc.subject Solar collectors efficiency en_US
dc.subject Solar fraction en_US
dc.title Design and simulation of a solar assisted desiccant-based air handling unit en_US
dc.type Presentation en_US


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