A compressor in an industrial air-conditioner compresses ammonia from a state of saturated vapor at 200 kPa to a pressure 800 kPa. At the exit, the temperature is measured to be 100° C and the mass flow rate is 0.5 kg/s. What is the required motor size for this compressor and what is its isentropic efficiency?
Week 10 Fish in Freshwater 1. Problem: gains H O2 a. Across gills and skin 2. Solutions: a. Don’t drink water b. Lots of dilute urine (kidney) c. Uptake of ions in gills (chloride cells; Na follows, then water follows by osmosis) Migrating Between Freshwater and Marine 1. Anadromous fish a. Lives in seawater freshwater to spawn i. Chloride cells take up Na , NaCl 2. Catadromous fish a. Lives in freshwater seawater to spawn - + i. Cl cells secrete Cl and Na Osmoregulators: Terrestrial Animals 1. Problem: threat of desiccation in the air 2. Solutions