The advanced evaporative and concentration technology receives extensive attention due to the increase of industrial wastewater market size and the average treatment cost in our country these years. Considering the increasing capacity of compressor pressure ratio, a single-stage double-effect mechanical vapor recompression (MVR) system was proposed in this paper. The influences of material concentration, evaporation temperature, compression ratio, temperature difference on the thermal performance of single-stage and double-effect MVR system were studied in detail. The performance analysis curve and energy-saving advantages of single-stage and double-effect MVR system were obtained by comparing with the single stage system. The results showed that the COP of the single-stage and double-effect MVR system reached 25 when the pressure ratio was higher than 1.9; the COP decreased significantly with the increase of the pressure ratio and evaporation temperature. The COP decreased by 4.4% and 3.1%, respectively, with the pressure ratio raise in 0.1 and the first effect evaporation temperature increase 10oC.
LI Shuai-qi
,
WANG Han-zhi
,
HUANG Chong
,
HE Shi-hui
,
SONG Wen-ji
,
FENG Zi-ping
. Performance Analysis of Single-Stage and Double-Effect Evaporative Concentration System Based on MVR Technology[J]. Advances in New and Renewable Energy, 2018
, 6(1)
: 36
-41
.
DOI: 10.3969/j.issn.2095-560X.2018.01.006
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