A bio-reactor is kept at 45°C on a day where the outside is 20°C. It is...

A bio-reactor is kept at 45°C on a day where the outside is 20°C. It is estimated that the bio-reactor loses 12 kW to the ambient. Waste heat at 450 K from an engine is used to deliver the heat to the bio-reactor. Find the destruction of exergy and where it is made.
The condenser in a power plant cools 10 kg/s water at 10 kPa, quality 90%, so it comes out as saturated liquid at 10 kPa. The cooling is done by ocean water coming in at ambient 15°C and returned to the ocean at 20°C. Find the second-law efficiency of the condenser.

Expert Solution

samet mamat answered 1 year ago

A room in the summer is to be maintained at 20°C, 50% RH when the outside...

A room in the summer is to be maintained at 20°C, 50% RH when the outside conditions are 35°C, 80% saturation. The sensible and latent heat gains are 5.5 kW and 1.4 kW respectively. The conditioned air is supplied through ducks from a central station consisting of a cooler battery, a reheat battery, and a fan. Fresh air is supplied to a mixing unit where it mixes with a certain percentage of air recirculated from the room, the remainder of...

Calculate the price of a 45-day futures contract, if you know that 45-day call options on...

Calculate the price of a 45-day futures contract, if you know that 45-day call options on the underlying with strike of $268 trade for c=$19.8 and put options with the same maturity and exercise price trade for $16.5. The risk free rate is 1.5%.

If you kept a record of how much money you spend on food in a day...

If you kept a record of how much money you spend on food in a day and use this information to estimate your monthly food costs. Would you be able to meet the recommendations of MyPlate on a budget of $3 a day? Which food groups contain the most expensive choices? Name some less expensive options in these food groups.

A person SHORT a 60-day FRA on the 45-day LIBOR with a rate of 8% and...

A person SHORT a 60-day FRA on the 45-day LIBOR with a rate of 8% and $2 million notional amount will have the payoff of ____ on day ____, if the spot rate at the FRA's expiration is 9%. Please provide detailed solution answer is -2472.19; 60

Where and how are financial records and reports kept? Who is responsible for their storage? Is there a...

Where and how are financial records and reports kept? Who is responsible for their storage? Is there a length of time that records should (or are required to) be kept?

The reaction A + 2B  C + D is taking place in a batch reactor....

The reaction A + 2B  C + D is taking place in a batch reactor. (Cao =1M, Cbo = 3M k=0.001 (1/M^2*min)). a) Assuming an elementary rate law, find the time necessary to reach the conversion of 0.9. You can assume constant volume batch reactor with well mixing. Also form the stoichiometric table. (15 points) b) Sometimes it is hard to obtain numerical solutions to the complex integrals. Find the answer using trapezoidal, Simpson 1/3 and Simpson 3/8, Five-point...

Oxygen for hospital patients is kept in special tanks, where the oxygen has a pressure of...

Oxygen for hospital patients is kept in special tanks, where the oxygen has a pressure of 75.0 atm and a temperature of 280. K. The tanks are stored in a separate room, and the oxygen is pumped to the patient

1. A balloon is floating around outside your window. The temperature outside is -15 ∘C ,...

1. A balloon is floating around outside your window. The temperature outside is -15 ∘C , and the air pressure is 0.800 atm . Your neighbor, who released the balloon, tells you that he filled it with 4.00 moles of gas. What is the volume of gas inside this balloon? Express your answer to three significant figures and include the appropriate units. Vballoon = 2. A 18.0 L gas cylinder is filled with 9.80 moles of gas. The tank is...

PART A A balloon is floating around outside your window. The temperature outside is -19 ∘C...

PART A A balloon is floating around outside your window. The temperature outside is -19 ∘C , and the air pressure is 0.700 atm . Your neighbor, who released the balloon, tells you that he filled it with 3.00 moles of gas. What is the volume of gas inside this balloon? Express your answer to three significant figures and include the appropriate units. PART B A 20.0 L gas cylinder is filled with 7.20 moles of gas. The tank is...

Part A A balloon is floating around outside your window. The temperature outside is 33 ∘C...

Part A A balloon is floating around outside your window. The temperature outside is 33 ∘C , and the air pressure is 0.800 atm . Your neighbor, who released the balloon, tells you that he filled it with 3.90 moles of gas. What is the volume of gas inside this balloon? Express your answer to three significant figures and include the appropriate units. Part B A 20.0 L gas cylinder is filled with 6.60 moles of gas. The tank is...

Question