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4 – Test Rig Design and Experimental Methods Figure 4.21 The Coriolis CO2 mass flow meter. Table 4.10 presents an overview of the mass and volume flow rate mea- surements in the heat pump system. Table 4.10 Tag. No. 1F1 2F1 3F1 4F1 4.1.4.4 Overview of the mass/volume flow rate measurements. Range 0.5 – 2.0 kg/min 0.1 – 0.5 l/s 0.2 – 2.0 l/min 0.1 – 0.5 l/s Sensor Placement Heat pump unit Heat source system (evaporator) Hot water system Space heating system Fluid CO2 Brine Water Water Power Input to the Compressor The electric power input to the compressor was measured by a Norma 1704GB3D (class 0.5) analogue wattmeter. The measurements were corrected for the power consumption and the efficiency of the inverter in order to find the net power consumption of the compressor. The power consumption and the efficiency of the inverter at various operating condi- tions were measured in separate compressor tests. 4.1.4.5 Uncertainty of the Single Measurements Table 4.11 provides an overview of the relative and absolute uncertainties in the readings from the different sensors/instruments. The uncertainties are based on calibration data or manufacturer data, and represent ±2σ, i.e. with a confidence level of 95%. The relative uncertainties refers to the measured value in percent of full scale (FS) or measured value (MV). 92PDF Image | Residential CO2 Heat Pump System for Combined
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CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
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