Chapter 14, Problem 3RQ

1.  is a limited space designed for limited working condition. It has a restricted entrance and exit and is not designed and intended for continuous human occupancy. Work done in this area may include repair, maintenance, and inspection. 2.  is the energy stored when released may cause serious accidents or physical damage. 3. include bacteria, viruses, fungi, and other microorganisms, and their associated toxins. These organisms are widespread in the natural environment; they are found in air, water, soil, plants, and animals. Because many microbes reproduce rapidly and require minimal resources for survival, they are a potential danger in a wide variety of occupational settings.

Calculate diameter in m. of a cylindrical water tank for a subdivision that has 500 lots if  fully occupied. Assume 6 persons per household and water consumption rate of 250 lpcd. Add water volume for fire demand which is 25% of the average day demand. The height of the cylindrical water tank to is 10 meters.

4.- Calculate the TMU equivalent of 0.0075 h per piece, 0.248 min per piece, 0.0622 h per hundred pieces, 0.421 s per piece and 10 pieces per minute.

2: answer five of the following: 0 [25 1-Why the second refrigerant is used? 2-How the solar energy is used to operate the absorption refrigeration systems? 3-What is the function of the compressor in the vapor compression refrigeration systems? And how can do this function in absorption refrigeration systems? 4- What are the available materials that can be used for manufacturing the ducts? 5- What is the function of expansion tank in piping systems? 6- What are the types of fans? And which of them used in A.C. applications.

Discuss the definition of "hot zone," its operation, and any potential limitations.

3-19. The mayor of Recycleville has asked you to develop an integrated waste management program. Residents currently pay $10 per month and can put out up to five 32-gallon cans per week. You offer the mayor an automated system with two price options: Container Size (gallons) Option 1 Option 2 $9.00 $12.00 $18.00 $15.00 $27.00 $18.00 32 64 96 In addition, you will provide the residents a 64-gallon commingled recycling container and a 96-gallon green-waste container. d. What impact would collecting recy- clables one week and collecting green waste the next week have on the recycling rate?

One of the existing tanks in the warehouse will be used to accept water from the City municipal system to hold it while the residual chlorine evaporates. The high chlorine levels are harmful to the bacteria, fish, and plants in the aquaponic system. In a meeting with your project team, you suggest to connect the City water service pipe to a jet and pelton wheel to harvest energy from the City water pressure. You measure the City water pressure in the building and find it to be equivalent to 30m of elevation. With that information you propose a 3.0m long 0.085m diameter penstock with a 0.015 friction factor, connected to a 0.015m diameter nozzle, which sprays at a 0.35m diameter turbine with an 85% efficiency. Note: input your solutions to 2 decimal places without units. Pay attention to the units required for each solution. Use 1000 kg/m for the density of water. First you want to make sure that the arrangement can supply enough water to service the aquaponic system. You run some…

3-19. The mayor of Recycleville has asked you to develop an integrated waste management program. Residents currently pay $10 per month and can put out up to five 32-gallon cans per week. You offer the mayor an automated system with two price options: Container Size (gallons) Option 1 Option 2 $9.00 $12.00 $18.00 $15.00 $27.00 $18.00 32 64 96 In addition, you will provide the residents a 64-gallon commingled recycling container and a 96-gallon green-waste container. b. a. What are the advantages of using the program you developed? Are residents opting for the 96-gallon container paying more for this service? (Hint: Think of the cost per gallon of material.) c. Which price option would likely have the higher recycling rate, and why? Look at the EPA web site for some case studies to support your reasoning. d. What impact would collecting recy- clables one week and collecting green waste the next week have on the recycling rate?

PLEASE SHOW ALL THE STEPS ALONG WITH THE SYSTEM SKETCH. A TYPED OUT SOLUTION WILL BE APPRECIATED, THE SKETCH CAN BE HAND DRAWN. THANKS IN ADVANCE! A family of four wants to build a house on a lot for which the percolation rate is 1.00 mm/min. The county requires a septic tank hydraulic retention time of 24 hrs. Assume each person contributes 100 gal/day of wastewater. Find the volume of the tank required and the area of the drain field. Sketch the system, including all dimensions.