find the weight of the igloo, neglecting the entrance. Also, if fresh air contains 0.04% carbon dioxide, find the amount of this gas in the igloo when freshly ventilated.

Q: After the refrigerant from Problem 3 flashes into a vapour, its specific weight is 12.50 N/m3. If…

A: To determine the volume flow rate.   Given, Specific weight = 12.5 N/m3 Weight flow rate = 28.5 N/h…

Q: A 1in diameter soup bubble has an internal pressure 0.0045lb/in2 greater than that of the outside…

A: Using surface tension formula

Q: • Pump (or turbine) efficiency = Power Out / Power In • Schedule 40 steel and PVC pipe have the same…

A: a) Calculating the head pump delivery: hpump=∆Pγhpump=128 psi×114 in2ft262.4 lb/ft3hpump=295.38 ft

Q: Question 2. A coal fired power station requires an ESP for dust removal from the flue gas. The…

A: Given:- The concentration of the dust particles in the influent flu gas = 5200 mg/m3  The flow rate…

Q: Methanol (SG = 0.8335, viscosity is equal to that of water) is being transported from a very large…

A: In this question we use formula: 1. Reynold's Number formula = (Density × u ×D)/viscocity 2.…

Q: The air coming out of the distillery has 60% relative humidity. How much water will you need to…

A: Consider the given data The air coming out of the distillery has 60% relative humidity 0.69g/kg…

Q: This is an end piece for the support frame of an A-type evaporator coil. Toforce the airflow through…

A: Consider the free body diagram of the triangular end piece of for the support frame of an A-type…

Q: A tank is holding 6 gasses. The gasses exert the following partial pressures: 3.4atm, 3.3 atm, 3.9…

A:

Q: An auditorium is 100m in length, 70m in width, and 20m in height. It is ventilated by a system that…

A: given data,auditorium dimensionlength=100mwidth=70mheight=20mventilation system is required to…

Q: An auditorium is 100m in length, 70m in width, and 20m in height. It is ventilated by a system that…

A: Auditorium dimensionLength=100mWidth=70mHeight=20m

Q: 1. What collection efficiency will a 125 cm high x 150 cm wide x 8 m long settling chamber have for…

A:

Q: Predict the total pressure drop for a wood chip and compost bio-filter that is 1,5 m deep with 50%…

A: Simply a layer of different organic filter is called biofilter.  A mixture of compost and wood chips…

Q: A concrete cooling water tank with dimensions 7 m by 12 m by 0.5 m deep, is filled to the brim with…

A: Given, V = 7m x 12m x 0.5m = 42 m3 β = 3.7 x 10-4/oC T1 = 85oC T2 = 25oC

Q: What level h (m) must be maintained to keep the Reynold number at 1600 through the commercial-steel…

A:

Q: Water flows downward through a vertical 10-mm- diameter galvanized iron pipe with an m average…

A:

Q: 1. In undisturbed air stream, where the pressure is 14.7 psi and density is 101325Pa, where the…

A:

Q: For a fixed gas flow rate and drift velocity, calculate the ratio of plate areas for two…

A: The relation between area of plane and efficiency of precipitator is as follows : A=-QWEln(1-n)…

Q: A thermoelectric project has the following characteristics: : - outflow of gases 15 m3/s - gas…

A: H + ∆H = 157m (given)

Q: Calculate the AQI and give a description of air that contains 5 ppm CO (8-hour average), 300 pg/m3…

A: AQI : AQI means Air Quality Index which is a measurement of various pollutants that are present in…

Q: Find the wind speed needed (in miles/hour) to obtain a daily evaporation of 0.163 in/day, if the air…

A: Given Data: Daily Evaporation is EL=0.163 in/day. Air temperature is T=80°F =26.67°C Relative…

Q: Explain why an air barrier is called an air-weather barrier.   Explain the difference between…

A: An air barrier is commonly referred to as an "air-weather barrier" because it serves the dual…

Q: (a) If the coefficient of performance is 10 and Tc = -40°F, determine TH, in °F.

A: Given:-coefficient of performance=10Tc=-40 oFTo find:-T in 0F

Q: A 1.5-ft³rigid tank contains saturated refrigerant-134 at 170 psia. Initially, 20 percent of the…

A:

Q: the unheated minor storage building shown in fig 2 is loacted in toronto for service in limit state.…

A: Calculate the Snow load on a roof  S=IsSsCbCwCsCa+SrIs=Importance factor for snow loadSs=1 in 50…

Q: A fire hose nozzle has a diameter of 1.125 in. According to some fire codes, the nozzle must be…

A:

Q: (category: friction factor, FE prep): Air at 1 atm and 10°C flows in a 4 cm diameter glass pipe…

A:

Q: If the atmospheric pressure is 101.30kPa and the absolute pressure at the bottom of the tank is…

A:

Q: n Schedule 40 steel pipe that will carry 0.8 ft3 /s of water at 50°F downhill and limit the total…

A: According to given data  lean Schedule 40 steel pipe that will carry 0.8 ft3 /s of water at 50°F…

Q: Q6: Consider a 3 bedroom apartment with 3 roommates. The apartment has a volume of 11,742 m^3 with 3…

A:

Q: Problem 7 Liquid water at 200 kPa and 25°C is heated in a chamber by mixing it with superheated…

A: Step 1:Step 2:

Q: ing at the flow rate, an

A: given data, Q = 500 m3/s Diameter, d = 1 m length, L = 75 m dynamic viscosity of air = 1.825 * 10-5…

Q: Calculate the latent heat of open water surface with air temperature 22°C, relative humidity is 40%…

A:

Q: ) Calculate the organic loading rate of the trickling filter in lb BOD/day/1000 ft3 with the data…

A: INTRODUCTION; Trickling filter is designed to remove waste material from the waste water sample. It…

Q: A weather station measures an air pressure of 2,000 psi and a temperature altitude of 30,080 ft at a…

A:

Q: A department store plans to construct a one-story building with a rectangular planform. The building…

A: SolutionLet          Ag=area of glasswall=15ft          Ab=Area of brick wall=15x+15x+15yft2…

Q: A two story home with an infiltration rate of 0.6 ach has 300 m² of total floor space and 2.4 meter…

A:

Q: The minimum temperature of the water is 5 °C, the free chlorine residual in the effluent from the…

A:

Q: A liquid has a density of 700 kg/m³ and a kinematic viscosity of 4.27 x 10-7 m2/s. Determine the…

A: Given data- Density (ρ) = 700 kg/m3 Kinematic viscosity (ν) = 4.27×10-7 m2/s Discharge (Q) = 220 L/s…

Q: Determine the effective height of a stack with the following given data: (a) Physical stack is 180 m…

A:

Q: A smooth concrete pipe with a 1.5 ft diameter carries carbon tetrachloride at 20 C from a tank to a…

A: Given Diameter of pipe=1.5ftDepth of the tank=3ftDistnace of dicharge,L=1mile=5280ft

Q: Evaporation pans provide an approximate estimate of (i)Evaporation from lakes (ii)Actual…

A: It is asked about the function of evaporation pans. Evaporation pans are installed in a catchment to…

Q: Estimate the total installed cost (in 1998 dollars) for an insulated, mild-steel reverse-air…

A: Given:- 11 compartments area of each compartment=8000 ft2 1998 dollars 8-inch glass fibre  bags To…

Q: Imagine a parcel of air that has a temperature of 40°C at the surface and a dew-point temperature of…

A: Given:- temperature of 40°C at the surface and a dew-point temperature of 20°C the environmental…

Q: 1. In water cycle, ______ brings H2O from water in a lake to vapor at atmosphere. A. evaporation;…

A: Answers:-1 In water cycle evapotranspiration brings H2O from, water in a lake to vapor at…

Q: Air flows from a 10 cm pipe in which the temperature and pressure are 4-C and 280 kPa, respectively,…

A:

Q: Air with a mass flow rate of 5 kg/s enters a horizontal nozzle operating at steady state at 450 K,…

A: Step 1: Given dataThe air is flowing in an insulated  nozzle.Mass flow ratem˙=5kg/sAt…

Q: A smokestack emits pollutant Z into the air on a sunny day. The effective stack  height is 270 m.…

A: Given Data: The effective stack height is H=270 m. The wind speed due east is u=4 m/s. The distance…

Hydrogen Energy

Energy is a quantity that cannot be defined, its existence can only be felt. In simple language, if a system possesses energy, it can do a specific kind of work. There are many forms of energy sources which people can use to obtain work. Solar energy, tidal energy, hydroelectric energy, geothermal energy, wind energy are some of the renewable energy sources which are primarily used for the production of electricity.