All publications from your selection

Download RAW file: https://library.csbe-scgab.ca/docs/journal/30/30_1_19_raw.pdf
DOI:
Description: Direct injection of chemical into the sprayer system shows some advantages over the conventional sprayer. One of the problems in a injection-type sprayer is metering and controlling the concentrated chemical flow rate. In this paper a flow control system using electro mechanical feedback was designed and tested. A positive displacement pump was used as a metering pump in the system. The feedback system kept the pressure drop across the metering pump at zero and controlled the metering pump speed according to the desired flow rate. The test results showed that the system worked well for fluids with viscosities from 90 to 300 mPa. s and flow rates from 3 to 20 mL/s. A linear relationship was achieved between the flow rate and pump speed. The response performance of the system also was tested. The results showed that the system would reach the steady state with a maximum of 5 s at start or when the travel speed was changed.

Keywords: chemical flow rate control in injection-type sprayers
Résumé:
Mots-clés:
Citation: Chi, L., Kushwaha, R.L. and F.W. Bigsby 1988. CHEMICAL FLOW RATE CONTROL IN INJECTION-TYPE SPRAYERS. Canadian Agricultural Engineering 30(1):19-26.
Volume: 30
Issue: 1
Pages 19 - 26
Contributor:
Date: 1988
Technical field:
Conference name:
Session name:

Other information:
Type:
Format:
Publication type:
Source:
Relation:
Coverage: Canada
Language 1:
Language 2:
Rights:
Notes:
Other files: