In a drying process, the moisture content of 25 kg of food will be reduced from 88% to 8%. The air used for drying enters the dryer at 85 ° C and exits at 70 ° C. 200 kg of saturated steam is used at 120 ° C to heat the air. Food enters the dryer at 30 ° C and exits at 65 ° C. Calculate the drying efficiency for an adiabatic operating dryer as the ambient air temperature is 25 ° C. (specific heat of food = 2.98kj / kg ° C)

While steam power cycles provide much of the electricity that powers the United States, not all the thermal energy used to generate the steam comes from burning fossil fuels. Below is a high-level schematic of a concentrated solar power (CSP) plant that uses a sodium-/potassium-nitrate molten salt to absorb solar thermal energy which is then transferred to steam to run a superheat Rankine cycle. Parabolic mirrors (receivers) concentrate solar energy onto pipes carrying the molten salt. As the molten salt flows through these tubes, it absorbs the reflected solar energy and eventually transfers this energy to steam in a heat exchanger (boiler). For your ensuing analysis, you may assume that the boiler and condenser operate isobarically. Molten salt or oil Receiver Pump wwwwww wimm Turbine Heat exchanger Electric generator Condenser Warm water Feedwater pump Pump Makeup water Cooling tower \/\/I\/10 Viviv j "i Cooled water The net power output of the steam cycle is 40 MW. If the pressure…

I need help to prepare to tomorrows exam. It needs to be shown on psychometric chart as well.

Required information Problem 14.108 - Cooling Tower Assessment NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. The cooling water from the condenser of a power plant enters a wet cooling tower at 40°C at a rate of 91 kg/s. The water is cooled to 25°C in the cooling tower by air that enters the tower at 1 atm, 23°C, and 60 percent relative humidity and leaves saturated at 32°C. Neglect the power input to the fan. Use data from the psychrometric chart and tables. Problem 14.108.a - Cooling Tower Assessment Determine the volume flow rate of air into the cooling tower. m³/s. The volume flow rate of air is