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Experimental investigation of a novel solar thermal polygeneration plant in United Arab Emirates
KTH, School of Industrial Engineering and Management (ITM), Energy Technology. American University of Ras Al Khaimah, United Arab Emirates.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology. American University of Ras Al Khaimah,United Arab Emirates.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.ORCID iD: 0000-0002-3661-7016
2016 (English)In: Renewable energy, ISSN 0960-1481, E-ISSN 1879-0682, Vol. 91, p. 361-373Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

The demands for space air conditioning and clean drinking water are relatively high in Middle East North African (MENA) countries. A sustainable and innovative approach to meet these demands along with the production of domestic hot water is experimentally investigated in this paper. A novel solar thermal poly-generation (STP) pilot plant is designed and developed for production of chilled water for air conditioning using absorption chiller, clean drinking water with membrane distillation units and domestic hot water by heat recovery. The STP system is developed with a flexibility to operate in four different modes: (i) solar cooling mode (ii) cogeneration of drinking water and domestic hot water (iii) cogeneration of cooling and desalination (iv) trigeneration. Operational flexibility allows consumers to utilize the available energy based on seasonal requirements. Performance of STP system is analyzed during summer months in RAKRIC research facility. Energy flows in STP pilot plant during peak load operations are analyzed for all four modes. STP system with trigeneration mode utilizes 23% more useful energy compared to solar cooling mode, which improves overall efficiency of the plant. Economic benefits of STP with trigeneration mode are evaluated with fuel cost inflation rate of 10%. STP plant has potential payback period of 9.08 years and net cumulative savings of $454,000 based on economic evaluation.

Place, publisher, year, edition, pages
2016. Vol. 91, p. 361-373
Keywords [en]
Absorption chiller, Air gap membrane distillation, Solar thermal, Poly-generation, Domestic hot water
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-185334DOI: 10.1016/j.renene.2016.01.072ISI: 000372382800035Scopus ID: 2-s2.0-84957876420OAI: oai:DiVA.org:kth-185334DiVA, id: diva2:921883
Note

QC 20160421

Available from: 2016-04-21 Created: 2016-04-18 Last updated: 2018-08-06Bibliographically approved
In thesis
1. Integration of Membrane Distillation and Solar Thermal Systems for Coproduction of Purified Water and Heat
Open this publication in new window or tab >>Integration of Membrane Distillation and Solar Thermal Systems for Coproduction of Purified Water and Heat
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

In the Middle East and North Africa region fresh water resources are very scarce and theexisting sources are depleting rapidly. Desalination is the method to fulfill increasing waterdemand, and people depend mostly upon bottled water for drinking purposes. Bottledwater is resource and energy demanding, hence there is a need for supplying drinkablewater in a sustainable way. The main objective of this research is to develop solutions forproviding potable water to urban communities through integrating membrane distillationwater purification units with solar driven hot water installations. A single-cassette Air GapMembrane Distillation (AGMD) unit was tested on laboratory scale to investigate theinfluence of various operating parameters on the distillate production. Particular attentionwas given for identifying process conditions relevant to the design of solar energyintegrated systems. In parallel, a simplified empirical model using response surfacemethods was developed and validated against bench scale experimental results. Thedeveloped model for performance indicators was later employed in dynamic simulations ofa solar thermal integrated membrane distillation system. A pilot plant was designed andinstalled at RAK Research and Innovation Center in UAE. Experimental investigations wereconducted on this integrated system for co-production of pure water (around 15-25 l/day)along with hot water production equivalent to the needs of a family of five. A dynamicsimulation model was developed in TRNSYS to analyze optimum operating conditions ofthe system. Economic analysis showed an impressive payback period and savings for theintegrated system as compared with standalone counterparts. A second pilot facility using alarger multi-cassette AGMD module and absorption cooler was designed and installed.Performance of this solar co-production system for heat, cooling, and pure water is analyzedfor various integration modes.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2017. p. 100
Series
TRITA-KRV ; 17-10
Keywords
Solar Membrane Distillation, polygeneration, TRNSYS, Integrated systems
National Category
Energy Engineering
Research subject
Energy Technology
Identifiers
urn:nbn:se:kth:diva-232854 (URN)978-91-7729-581-5 (ISBN)
Public defence
2017-12-12, Kollegiesalen, Brinellvägen 8, KTH Royal Institute of Technology, Stockholm, 13:00 (English)
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Supervisors
Note

QC 20180806

Available from: 2018-08-06 Created: 2018-08-05 Last updated: 2018-08-06Bibliographically approved

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