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al. (1999) studied the risk of high CO2 concentration in a vehicle cabin. The authors discussed the safety concerns and presented some suggestion for CO2 as a refrigerant in mobile air conditioning systems. A study relevant to the present application was conducted by Sawalha (2008). The author discussed the safety concerns in specific application of supermarket refrigeration. Safety is a very important factor especially in the case of data centers at Purdue University because of its proximity to the students. The system will be placed in a department building and hence careful consideration is required if a prototype of the transcritical CO2 system is installed. The most critical issue that is faced in CO2 systems is the high pressure at standstill. In case of component failure, power cut or if the system has to be stopped for mantainence, the plant might start gaining heat from the surrounding as a result of which the pressure inside the plant will increase. The system might not be able to withstand very high pressure. The most common and easiest way is to release the charge. Since CO2 is inexpensive, this method turns out to be the most feasible option. However, the CO2 concentrations should be monitored by appropriate placement of the sensors. The health consequences at different concentrations are tabulated in Table 6-1. The study by Sawalha (2008) in supermarket refrigeration concludes that the use of CO2 in supermarket refrigeration systems does not result in exceptional health risks for the customers or workers. However, CO2 detectors are advised because of the non-self- alarming nature of carbon dioxide. Proper ventilation and alarm system should be mandatory in the machine room in case of an emergency. 48PDF Image | CO2 HEAT PUMPS FOR COMMERCIAL BUILDING APPLICATIONS
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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
Heat Pumps CO2 ORC Heat Pump System Platform More Info
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