(1.3) Suppose a process increases Gibbs free energy of a system coupled to both a heat bath and volume reservoir, i.e., AG> 0. What does that tell you about the system's coupling to work reservoirs? Explain.
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- ) Two boilers, one with superheater(B1) and other without superheater(B2) are delivering equal quantities of steam into a common main. The pressure in the boiler and main is 20 bars. The temperature of the steam from a boiler with a superheater is 350oC and temperature of the steam in the main is 250oC. The steam in B2 is wet steam at 20oC. i) Draw a sketch of the problem with all thermodynamic properties from steam table shown on the sketch. ii) Determine the quantity of steam supplied by the other boiler. Take the heat capacity of steam, Cps = 2.25KJ/Kg.hgas= hg + Cps (Tsap-Tsat)3.15 The heating rate that a heat pump delivers to a living space of tempera- ture 20°C is 5 kW. The coefficient of performance of the heat pump is COP = 2. The temperature of the ambient is 0°C. (a) What is the electrical power required by the heat pump? (b) What is the rate at which the heat pump draws heat from the ambient? (c) What is the highest COP value that the heat pump may attain? (d) Is the operation of this heat pump violating the second law of thermodynamics?Thermodynamics: Can you show me how to solve the given problem? To find the right answer? ( please solve step by step solution please )
- Thermodynamics. Need cancelation method-Problem 5. Heat is generated uniformly at a rate of Se in a copper wire of radius re having thermal conductivity k where the ambient temperature is T. and the heat transfer coefficient is ho. At steady state; i. ii. iii. find an expression for the temperature distribution at steady-state and draw a T vs. r graph. Substituting; S₂ = 125 kW/m³, k = 390 W/m.K, rc = 2 mm, T = 20°C and hoc=25W/m²K, find the steady state surface and center temperatures and the heat transfer rate to the surroundings. Repeat part i and ii when the wire is covered with an insulation of thickness ti and ki which are 0.1 mm and 0.2 W/m.K, respectively.hello my question is about thermodynamics. and i am having troubles with writing energy balances . more specifically energy balance on closed , open , steady state and for throttling device
- A 3.0-inch wall of fire brick, k = 8.0 Btu/ (ft)(hr) (CF/ in) has one surface at 335°F, the other at 80°F. Find the heat conducted through an area of 1.4 ft? in one day.Thermodynamics: Please show how to solve this step by step and what is the answer to the certain probldmHow is the Limit State Design applied?
- Thermodynamics Question: Can you please reduce the first law energy balance for: Ideal gas is compressed in a cylinder piston isothermally. No input or output streams. No change in potential or kinetic energy. Please write the first law, show what terms are zero and simplify it. Thank you.Thermodynamics: Please show me how to solve the following practice problems in step by step solution (Thank you so much!)A group is considering installing a solar power station and has asked you for your recommendation if it should be a photovoltaic system or a solar thermal system. At this stage you are asked not to include cost factors. The single point design condition they have given you is for an incident solar radiation on the collector of 550 W/m2, a surrounding temperature of 18 C. The dead state for this problem should be taken as To = 291 K, Po = 1 bar. You can perform your analysis at steady state conditions. In addition to determining the power output and first law efficiency of the options, you have been requested to determine the exergy destroyed for each of them. The photovoltaic system has an efficiency of 0.15 defined as the power output/incident solar radiation. The basic photovoltaic collector is 1.1 m2 and losses heat from both the front and back surface. The edge area can be neglected. The convective heat transfer coefficient is 10 W/m2 K. The inverter and signal…