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please help. different values than previous chegg questions. thank you i'll upvote. On an uncomfortable summer day, the air is at 87 F and 60

please help. different values than previous chegg questions. thank you i'll upvote.
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On an uncomfortable summer day, the air is at 87 F and 60 % relative humidity. A laboratory air conditioner is to deliver 1.0 x 10 ft/min of air at 65F in order to maintain the interior air at an average temperature of 75F and a relative humidity of 40% If the vent switch on the air conditioner is turned to the "open" position, outside air enters the unit as shown below. Exhuast 75F h, = 40% AIR CONDITIONER REHEATER Delivered air F A LAB 75F (tons) h = 40% Outside air COOLER AF h,= B % Condensed water Assume A-87 F.B - 60%, C = 65F. In the air conditioner, the air is cooled to a temperature low enough to condense the necessary amount of water and reheated to 65F, at which point it has the same absolute humidity as the room air. Use the psychometric chart to estimate the rate (lb/min) at which water is condensed, the temperature to which the air must be cooled to condense water at this rate, and the net tons of cooling required (O), where 1 ton of cooling --12,000 Btu/h. [Note: The humid volume of the delivered air (at 65F), which is difficult to read from the psychometric chart. is 13.40 ft.dry air, and the heat capacity of liquid water is 1.0 Btu/(IbmF). Rate at which water condensed: 1b./min F Temperature of condensed water: tons Tons of cooling required: If the vent switch is set to the "closed" position (as it normally would be), inside air would be recirculated throgh the air conditioner as shown in the following diagram. Recirculated room air, 75F h, = 40% Exhuast 75F h, = 40% AIR CONDITIONER Delivered air REHEATER (tons) CF LAB 75F h = 40% Outside air COOLER A OF h =B % MAR W IM 4 MINE X o 27 Assume A-87 F, B = 60%, C-65 F. The recycle ratio (ft recirculated/ft exhausted) is 6:1. Calculate the condensation rate and the overall cooling requirement in tons if conditioned air is delivered at the same rate, temperature, and relative humidity as in the first part. What percentage of the cooling load on the air conditioner is saved by recirculating the air? Condensation rate: Ibr/min Cooling load: tons Percentage savings: %

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