HEAT PUMPS FOR WOOD DRYING: NEW DEVELOPMENTS AND PRELIMINARY RESULTS

This paper succinctly presents new developments, preliminary statements and a number of energy results in the area of high-temperature heat pump technology for wood drying in a Canadian economic environment. A hybrid (electricity/fossil), high-temperature technology has been investigated and then fi...

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Main Author: Vasile Minea
Format: Article
Language:English
Published: Universidad del Bío-Bío 2004-01-01
Series:Maderas: Ciencia y Tecnología
Subjects:
Online Access:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2004000200003
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author Vasile Minea
author_facet Vasile Minea
author_sort Vasile Minea
collection DOAJ
description This paper succinctly presents new developments, preliminary statements and a number of energy results in the area of high-temperature heat pump technology for wood drying in a Canadian economic environment. A hybrid (electricity/fossil), high-temperature technology has been investigated and then field tested over the last two years. Several technical developments were achieved at the level of fluid selection, refrigerant flow control and system stability, variable dehumidifying capacity and appropriate drying schedules. The present study demonstrates that the thermodynamic efficiency and specific energy performance of the developed high-temperature drying heat pumps have generally reached the initial designed targets. Refinements of the integrated control methods involving variable speed and electronic devices are currently being undertaken in order to avoid undesired operating conditions that could cause mechanical failures or inefficient dehumidifying processes. The current research program aims at diversifying the applicable thermodynamic cycles, testing new environmentally friendly refrigerants and advanced components, and developing more advanced drying control strategies
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spelling doaj.art-908408c438ca46be8f151b858c9cbd9b2022-12-21T23:16:11ZengUniversidad del Bío-BíoMaderas: Ciencia y Tecnología0717-36440718-221X2004-01-0162123132HEAT PUMPS FOR WOOD DRYING: NEW DEVELOPMENTS AND PRELIMINARY RESULTSVasile MineaThis paper succinctly presents new developments, preliminary statements and a number of energy results in the area of high-temperature heat pump technology for wood drying in a Canadian economic environment. A hybrid (electricity/fossil), high-temperature technology has been investigated and then field tested over the last two years. Several technical developments were achieved at the level of fluid selection, refrigerant flow control and system stability, variable dehumidifying capacity and appropriate drying schedules. The present study demonstrates that the thermodynamic efficiency and specific energy performance of the developed high-temperature drying heat pumps have generally reached the initial designed targets. Refinements of the integrated control methods involving variable speed and electronic devices are currently being undertaken in order to avoid undesired operating conditions that could cause mechanical failures or inefficient dehumidifying processes. The current research program aims at diversifying the applicable thermodynamic cycles, testing new environmentally friendly refrigerants and advanced components, and developing more advanced drying control strategieshttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2004000200003Wood Drying
spellingShingle Vasile Minea
HEAT PUMPS FOR WOOD DRYING: NEW DEVELOPMENTS AND PRELIMINARY RESULTS
Maderas: Ciencia y Tecnología
Wood Drying
title HEAT PUMPS FOR WOOD DRYING: NEW DEVELOPMENTS AND PRELIMINARY RESULTS
title_full HEAT PUMPS FOR WOOD DRYING: NEW DEVELOPMENTS AND PRELIMINARY RESULTS
title_fullStr HEAT PUMPS FOR WOOD DRYING: NEW DEVELOPMENTS AND PRELIMINARY RESULTS
title_full_unstemmed HEAT PUMPS FOR WOOD DRYING: NEW DEVELOPMENTS AND PRELIMINARY RESULTS
title_short HEAT PUMPS FOR WOOD DRYING: NEW DEVELOPMENTS AND PRELIMINARY RESULTS
title_sort heat pumps for wood drying new developments and preliminary results
topic Wood Drying
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2004000200003
work_keys_str_mv AT vasileminea heatpumpsforwooddryingnewdevelopmentsandpreliminaryresults