Solar-powered condensation vacuum technology

Hongling Deng, Guangyu Guo, Zhiming Ji, Chao Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A technology is presented to power an innovative vacuum technology with low-grade solar energy. In the new vacuum technology, a saturated steam of higher than ambient pressure is inserted into a condensation cylinder with two chambers, separated by a movable piston, to fill one chamber while expel gaseous content and condensate out of the other chamber. The steam is then condensed to a vacuum state by cooling. A sustained vacuum generation is achieved by repeated operations of inserting and condensing steam in each chamber alternatively. Solar thermal energy heats solar collector to generate the steam needed in vacuum system and solar panels generate electricity for operating circulating water pump and control devices. Initial energy analysis of the solar vacuum generation technology and a case study is conducted.

Original languageEnglish (US)
Title of host publication4th Thermal and Fluids Engineering Conference, TFEC 2019
PublisherBegell House Inc.
Number of pages9
ISBN (Electronic)9781567004724
StatePublished - 2019
Event4th Thermal and Fluids Engineering Conference, TFEC 2019 - Las Vegas, United States
Duration: Apr 14 2019Apr 17 2019

Publication series

NameProceedings of the Thermal and Fluids Engineering Summer Conference
ISSN (Electronic)2379-1748


Conference4th Thermal and Fluids Engineering Conference, TFEC 2019
Country/TerritoryUnited States
CityLas Vegas

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Energy Engineering and Power Technology
  • Fluid Flow and Transfer Processes
  • Electrical and Electronic Engineering
  • Renewable Energy, Sustainability and the Environment


  • Solar electricity
  • Solar thermal
  • Steam condensation
  • Vacuum technology


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