Detail publikace

Innovative Hybrid Heat Pump for Dryer Process Integration

Walmsley, T.G. Klemeš, J.J. Walmsley, M.R.W. Atkins, M.J. Varbanov, P.S.

Anglický název

Innovative Hybrid Heat Pump for Dryer Process Integration

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

en

Originální abstrakt

This study aims to simulate and optimise a hybrid compression-absorption heat pump process for convective dryers considering Pinch design principles. With a greening electricity grid, heat pumps represent an effective technology to reduce process heat emissions. As a result, numerous types of heat pumps integrated with convective dryers have been reported in the literature, but no study was found to use a hybrid heat pump. To simplify the design and optimisation, Process Integration principles for compressors and expanders from literature are synthesised into a Pinch design method for heat pumps. A milk spray dryer case study is analysed. Simulation results using Petro-Sim™ show that the optimally design hybrid heat pump system can reduce dryer energy demand by 47.3 % and total emissions by 42.4 % (assuming a low carbon electricity grid) while achieving a gross Coefficient of Performance of 4.53. Future work will look at optimising the selection and composition of working fluid for the hybrid heat pump system as well as investigating the economics of its implementation in industry

Anglický abstrakt

This study aims to simulate and optimise a hybrid compression-absorption heat pump process for convective dryers considering Pinch design principles. With a greening electricity grid, heat pumps represent an effective technology to reduce process heat emissions. As a result, numerous types of heat pumps integrated with convective dryers have been reported in the literature, but no study was found to use a hybrid heat pump. To simplify the design and optimisation, Process Integration principles for compressors and expanders from literature are synthesised into a Pinch design method for heat pumps. A milk spray dryer case study is analysed. Simulation results using Petro-Sim™ show that the optimally design hybrid heat pump system can reduce dryer energy demand by 47.3 % and total emissions by 42.4 % (assuming a low carbon electricity grid) while achieving a gross Coefficient of Performance of 4.53. Future work will look at optimising the selection and composition of working fluid for the hybrid heat pump system as well as investigating the economics of its implementation in industry

Klíčová slova anglicky

Carbon; Dryers (equipment); Electric power transmission networks; Heat convection; Coefficient of Performance; Compression-absorption; Convective dryers; Design Principles; Electricity grids; Low-carbon electricities; Process integration; Total emissions; Heat pump systems

Vydáno

01.06.2017

Nakladatel

Italian Association of Chemical Engineering - AIDIC

ISBN

978-88-95608-51-8

ISSN

2283-9216

Kniha

Chemical Engineering Transactions

Číslo

57

Strany od–do

1039–1044

Počet stran

5

BIBTEX


@inproceedings{BUT145948,
  author="Timothy Gordon {Walmsley} and Jiří {Klemeš} and Petar Sabev {Varbanov},
  title="Innovative Hybrid Heat Pump for Dryer Process Integration",
  booktitle="Chemical Engineering Transactions  ",
  year="2017",
  number="57",
  month="June",
  pages="1039--1044",
  publisher="Italian Association of Chemical Engineering - AIDIC",
  isbn="978-88-95608-51-8",
  issn="2283-9216"
}