Experimental evaluation of a liquid desiccant air conditioning system for tri-generation / waste heat driven applications

The paper aims to evaluate the application of liquid desiccant air conditioning technology in the development of efficient and effective tri-generation/waste heat driven system applications, in particular with regard to solid oxide fuel cell (SOFC) technology. Using operational thermal input values...

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Main Authors: Elmer, Theo, Worall, Mark, Wu, Shenyi, Riffat, Saffa
Format: Article
Published: Oxford University Press 2016
Subjects:
Online Access:https://eprints.nottingham.ac.uk/33226/
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author Elmer, Theo
Worall, Mark
Wu, Shenyi
Riffat, Saffa
author_facet Elmer, Theo
Worall, Mark
Wu, Shenyi
Riffat, Saffa
author_sort Elmer, Theo
building Nottingham Research Data Repository
collection Online Access
description The paper aims to evaluate the application of liquid desiccant air conditioning technology in the development of efficient and effective tri-generation/waste heat driven system applications, in particular with regard to solid oxide fuel cell (SOFC) technology. Using operational thermal input values typical of a SOFC combined heat and power (CHP) system, the paper’s evaluation validates the concept of integrating SOFC and liquid desiccant air conditioning technology into an efficient and effective first-of-its-kind tri-generation system. This is due to good dehumidification capacity and effective regeneration of a potassium formate solution at a 0.65-0.7 solution mass concentration. Conclusions of the paper’s evaluation include: (1) effective instantaneous balancing of the dehumidifier and regenerator across a range of environmental and operational values, (2) operation of the dehumidifier is dictated, to some degree by the available thermal energy (CHP prime mover, process heat), (3) encouraging thermal COP values, for a system of this scale, in the range of 0.4-0.66 are achievable with a low grade thermal input (45-60°C) typical of a SOFC CHP system, and (4) potential for non-synchronous operation in a tri-generation system context, bringing about improvements to peak cooling output and total system efficiency.
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spelling nottingham-332262020-05-04T17:45:14Z https://eprints.nottingham.ac.uk/33226/ Experimental evaluation of a liquid desiccant air conditioning system for tri-generation / waste heat driven applications Elmer, Theo Worall, Mark Wu, Shenyi Riffat, Saffa The paper aims to evaluate the application of liquid desiccant air conditioning technology in the development of efficient and effective tri-generation/waste heat driven system applications, in particular with regard to solid oxide fuel cell (SOFC) technology. Using operational thermal input values typical of a SOFC combined heat and power (CHP) system, the paper’s evaluation validates the concept of integrating SOFC and liquid desiccant air conditioning technology into an efficient and effective first-of-its-kind tri-generation system. This is due to good dehumidification capacity and effective regeneration of a potassium formate solution at a 0.65-0.7 solution mass concentration. Conclusions of the paper’s evaluation include: (1) effective instantaneous balancing of the dehumidifier and regenerator across a range of environmental and operational values, (2) operation of the dehumidifier is dictated, to some degree by the available thermal energy (CHP prime mover, process heat), (3) encouraging thermal COP values, for a system of this scale, in the range of 0.4-0.66 are achievable with a low grade thermal input (45-60°C) typical of a SOFC CHP system, and (4) potential for non-synchronous operation in a tri-generation system context, bringing about improvements to peak cooling output and total system efficiency. Oxford University Press 2016-04-24 Article PeerReviewed Elmer, Theo, Worall, Mark, Wu, Shenyi and Riffat, Saffa (2016) Experimental evaluation of a liquid desiccant air conditioning system for tri-generation / waste heat driven applications. International Journal of Low Carbon Technologies . ISSN 1748-1325 (In Press) Liquid desiccant; Air conditioning; Waste heat; Potassium formate; Building application
spellingShingle Liquid desiccant; Air conditioning; Waste heat; Potassium formate; Building application
Elmer, Theo
Worall, Mark
Wu, Shenyi
Riffat, Saffa
Experimental evaluation of a liquid desiccant air conditioning system for tri-generation / waste heat driven applications
title Experimental evaluation of a liquid desiccant air conditioning system for tri-generation / waste heat driven applications
title_full Experimental evaluation of a liquid desiccant air conditioning system for tri-generation / waste heat driven applications
title_fullStr Experimental evaluation of a liquid desiccant air conditioning system for tri-generation / waste heat driven applications
title_full_unstemmed Experimental evaluation of a liquid desiccant air conditioning system for tri-generation / waste heat driven applications
title_short Experimental evaluation of a liquid desiccant air conditioning system for tri-generation / waste heat driven applications
title_sort experimental evaluation of a liquid desiccant air conditioning system for tri-generation / waste heat driven applications
topic Liquid desiccant; Air conditioning; Waste heat; Potassium formate; Building application
url https://eprints.nottingham.ac.uk/33226/