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Development of a solar-assisted off-grid retrofitted fluidized bed dryer to be used for granular materials in developing countries

Project Description

By comparison with fixed bed dryers, fluidized bed dryers operate at higher air velocity, making the product to suspend and become fluidized. This improves greatly the contact between material and hot air, enhancing heat and mass transfer and consequently improving energy efficiency. However, they are rarely used by smallholders in developing countries. That is because the design and construction of fluidized bed dryers are more complex, particularly the fan, that needs to be properly dimensioned to be able to correctly fluidize the product.
Moreover, in developing countries, fuel cost is the main expenditure of processing centres. At those centres, the building where the dryer is located is usually covered with a pitched roof. To reduce the use of fossil fuel, those roofs could be adapted to work as solar collectors and preheat the drying air. Auxiliary heating would still be needed to assure reaching the correct drying temperature and to allow operating under overcast conditions, nevertheless, converting a dryer to a solar-assisted equipment brings great economic and environmental benefits.

For further information please contact the supervisor(s):
Dr Marcelo Figueira De Mello Precoppe ()
Dr Pablo Garcia-Trinanes ()

Bursary available (subject to satisfactory performance):
Year 1: £15,009 Year 2: In line with UKRI rate Year 3: In line with UKRI rate
Scholarships are available for three years, full-time study from the date scholars first register as an MPhil/PhD student with the university. The successful candidate will receive a waiver for tuition fees for the duration of their three-year scholarship. Students may be liable for tuition fees after this period. Applicants must meet the programme entry requirements.
For additional information about the scholarship please go to:

Please read this information before making an application. Applications need to be made online via No other form of application will be considered.

All applications must include the following information. Applications not containing these documents will not be considered.
• In the first part of the application select the following: Food Science and Marketing Economics (MPHIL/PHD

• Scholarship Reference Number (Ref) – included in the personal statement section together with your personal statement as to why you are applying

• a CV including 2 referees *

• academic qualification certificates/transcripts and IELTs/English Language certificate if you are an international applicant or if English is not your first language or you are from a country where English is not the majority spoken language as defined by the UK Border Agency *

*upload to the qualification section of the application form. Attachments need to be in PDF format.

The closing date for applications is midnight (UTC) on 20 November 2019
The scholarship must commence before 6 January 2020

Related Subjects

How good is research at University of Greenwich in Agriculture, Veterinary and Food Science?

FTE Category A staff submitted: 23.50

Research output data provided by the Research Excellence Framework (REF)

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