Open AccessExperimental and modelling evaluation of possible solutions for compact design of producer-gas heat exchangers
Author(s) -
Nicolò Morselli,
Marco Puglia,
John L. Mason,
Massimiliano Parenti,
Filippo Ottani,
Paolo Tartarini
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1599/1/012034
Subject(s) - heat exchanger , environmental science , heat transfer coefficient , wood gas generator , materials science , shell and tube heat exchanger , nuclear engineering , thermodynamics , heat transfer , mechanics , mechanical engineering , waste management , engineering , physics , coal
An experimental and numerical campaign was carried out to investigate the performances of tubes in shell heat exchanger applied to cool down the producer gas of a small-scale commercial wood biomass gasifier built by All Power Labs. Producer gas is contaminated with soot and tars that condensate under 300 °C, for this reason the heat exchanger was designed in order to have an in-situ cleaning mechanism. The heat exchanger was tested both with standard plain tubes and with a set of metal twisted tapes ( TT ) with the aim of enhancing the heat transfer between producer gas and water. Temperatures and mass flows analyses shown a maximum increase of thermal power output and overall heat transfer coefficient respectively of 19% and 76% when TT are applied to the standard plain tubes in shell heat exchanger. Numerical simulations shown a consistency in the trends giving an average discrepancy with experimental results of the 12%.