Open AccessRecovering Vacuum Drying Exhaust Latent Heat by Steam Recompression with a Jet Pump
Author(s) -
Xuanyou Li,
Ling Gao,
Rongyue Sun,
Yang Liguo
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 - 10.1088/1742-6596/1637/1/012127
Subject(s) - latent heat , waste heat recovery unit , hybrid heat , heat pump , jet (fluid) , waste heat , vacuum pump , environmental science , heat recovery ventilation , exhaust gas , waste management , materials science , petroleum engineering , nuclear engineering , process engineering , thermodynamics , mechanical engineering , engineering , heat exchanger , physics
Recovery of latent heat is one of the most efficient methods to reduce drying energy consumption. This paper presents a system to recovery exhaust latent heat for vacuum drying. Replacing water with heat conduct oil, a hydraulic Jet was employed to evacuate the dryer and compress the exhaust vapour. The heated vapour, which is increased its temperature and pressure by means of recompression, was transferred to the vacuum dryer as the heat source through a heat pipe. This design was confirmed by a series of experiments with oil sludge.