As for the refrigerating effects, the data from single metabolite measurements were normalized to the "day 0 sample".
Not only was energy required to drive the air compressor, but a refrigerating effect that delayed ignition occurred when the compressed air, typically at 6.9 megapascals (1,000 pounds per square inch), suddenly expanded into the cylinder, which was at a pressure of about 3.4 to 4 megapascals (493 to 580 pounds per square inch).
Different from the conventional single-stage ejector refrigeration system, this two-stage system is finally found to be capable of supplying more refrigerating effect in situations where the condensation temperature is lower than 21.7 °C.
To investigate refrigerating effects (storage at 4 to 8°C in a standard refrigerator from Bosch, Gerlingen-Schillerhöhe, Germany, type KGV33600, hereinafter given as 4°C), the samples were kept refrigerated after the first measurement, except for 30 min during each NMR analysis (25°C).
For lactate, samples above LLOQ were mostly within the 15% range, and only the sample after HCBD treatment was twice within the 20% range (original and pH 6.5 modification), and once even reduced by 22% on day 3. Analysis of refrigerating effects at 4°C was done after exclusion of samples with suggested microbial contamination.
Automatic refrigeration is somewhat more complicated than manual as it has to incorporate certain devices for the easier handling of the refrigerating fluid (refrigerant).
By supercooling refrigerant before being throttled with 2 38 °C water, the refrigerating output is raised and the water's sensible heat is converted to cool energy to be used for cool storage air-conditioning.
The windchiller increases the working efficiency in comparison with the refrigerating system of indirect connection from wind generator to refrigerator and ignores the unstable property of wind force.
Mainly, the ejector performance directly affects the refrigerating performance.
When the hot air, the ambient air and the refrigerating temperature are 230 °C, 30 °C and −5 °C, respectively, the average refrigerating capacity is 2.2 kW in the sorption process.
