English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Characteristics of different heat recovery devices from exhaust air were introduced.An actual project was taken as an example,three heat recovery systems from exhaust air by rotary wheel exchanger,plate- fin heat exchanger and recovery fresh air heat pump units were presented.The energy saving and economic of these heat recovery systems were analyzed.Initial investment and payback period of the system was reckoned.Considering the above situation,the recovery fresh air heat pump unit has a considerable energy saving potential.

Economic analysis on application of exhaust air heat recovery in existing public buildings in the severe cold regions