scholarly journals Determination of solar energy requirements for indirect cooling combined with evaporative cooling for storage of fresh produce

2020 ◽  
Vol 16 (10) ◽  
pp. 1420-1431
Author(s):  
Sibanda Sipho ◽  
Seyoum Workneh Tilahun
Keyword(s):  
Solar Energy ◽  
Fresh Produce ◽  
Evaporative Cooling ◽  
Energy Requirements

The Solar Energy-Air Source Heat Pump Was Applied to the Hot Water System

2014 ◽  
Vol 587-589 ◽  
pp. 243-246
Author(s):  
Chu Ping Lu ◽  
Kai Ji
Keyword(s):  
Solar Energy ◽  
Heat Pump ◽  
Water System ◽  
Hot Water ◽  
Water Heater ◽  
Circulating Water ◽  
Air Source Heat Pump ◽  
Hot Water Supply ◽  
The City

This paper is as an example of the hot water supply of the hotel in the city,The design of the hot water system is the solar energy and the air source heat pump,includes:the selection calculation of the air source heat pump of the water heater , the selection and calculation of the solar collector,the determination of the thermal storage tank and the determination of the circulating water pump of heat collecting .

Gas Chromatographic Determination of Fenvalerate Insecticide Residues in Processed Tomato Products and By-Products

1984 ◽  
Vol 67 (4) ◽  
pp. 824-826
Author(s):  
Terry D Spittler ◽  
Robert J Argauer ◽  
Donald J Lisk ◽  
Ralph O Mumma ◽  
George Winnett ◽  
...  
Keyword(s):  
Chromatographic Analysis ◽  
Fresh Produce ◽  
Chromatographic Determination ◽  
Synthetic Pyrethroid ◽  
Analytical Technique ◽  
Insecticide Residues ◽  
Collaborative Agreement ◽  
Tomato Products ◽  
By Products

Abstract The results of a 5-laboratory collaborative determination of residues of the synthetic pyrethroid insecticide fenvalerate in tomato products are presented. Tomatoes from plants treated in the field at 2-4 day intervals (13 foliar applications) were processed into chopped fresh tomatoes, canned quarters, juice, paste, and the by-product skins plus seeds. Gas chromatographic analysis of the commodities for fenvalerate showed the fresh produce to contain 0.26 ppm, and the skins plus seeds contained 1.9 ppm. Residues were barely detectable in canned peeled quarters and juice, but averaged 0.12 ppm for paste, the concentration product of juice. High residues were associated with the skin content of the product. Five laboratories using modifications of the same analytical technique obtained good collaborative agreement.

Sign in / Sign up

Export Citation Format

Share Document