PDF Publication Title:
Text from PDF Page: 113
Tag. No. 1P1 1P2 1DP1/2 4.1.4.3 Range 2 to 6 MPa 0 to 16 MPa 10 to 150 kPa Sensor Placement Fluid 4 – Test Rig Design and Experimental Methods 4.1.4.2 CO2 Pressure The CO2 pressure at the evaporator outlet and the compressor outlet was measured by Druck PTX 521-00 and Druck PTX 510 piezoelectric pressure transducers. The pressure transducers were calibrated to measure the absolute pressure. A Rosemount G1151 DP5 pressure transducer was used to measure the differential pressure in the evaporator, the entire gas cooler and the individual gas cooler units. Six three-way valves were used to switch between the measurement signals. The pressure transducers were mounted above the heat pump unit, and the connecting pipelines were designed with the purpose of preventing liquid and oil hold up since this would affect the accuracy of the measurements. Table 4.9 presents an overview of the pressure measurements. Table 4.9 Overview of the pressure measurements. Evaporator CO2 Compressor – inlet CO2 Gas cooler – inlet (reheating DHW) Compressor – outlet Evaporator Gas cooler – reheating DHW Gas cooler – space heating Gas cooler – preheating DHW Entire gas cooler CO2 Mass and Volume Flow Rates The CO2 mass flow rate was measured by a Coriolis-type Rheonic sensor RHM 015 GET2 connected to a Rheonic RHE 08 signal converter. The sensor was installed between the suction gas heat exchanger and the expansion valves. Figure 4.21 shows the sensor installed in the test rig. The volume flow rates in the heat source, space heating and hot water systems were measured by ultrasonic volume flow meters of type Kundo G03. Due to the very low flow rate in the hot water system (< 2 l/min), the measurements during most of the tests were carried out by means of a 2000 ml can and a stop watch in order to improve the accuracy of the measurements. 91PDF Image | Residential CO2 Heat Pump System for Combined
PDF Search Title:
Residential CO2 Heat Pump System for CombinedOriginal File Name Searched:
20559406.pdfDIY PDF Search: Google It | Yahoo | Bing
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
Heat Pumps CO2 ORC Heat Pump System Platform More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |