Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Estimate the optimum thickness of insulation for the roof of a house given the following information. The insulation will be installed flat on the attic floor. Overall heat transfer coefficient for the insulation as a function of thickness, U values (see
The cost of insulation, including installation, is $120/m3 . Capital charges (see Chapter 9) are 20% per year. The cost of fuel, allowing for the efficiency of the heating system, is $8/GJ. The cost of cooling is $5/GJ. Average temperatures for any region of the United States or Canada can be found online at www.weather.com (under the averages tab). Assume the house is heated or cooled to maintain an internal temperature in the range 70 °F to 80 °F.
Design Options for Recovery of Acetic Acid from Aqueous Solution. The project involves the comparison of two methods for recovery of acetic acid from an aqueous solution. Your client is planning to add additional acetic acid production capacity of..
A process heater uses Dowtherm A heat transfer fluid to provide 850 kW of heat. Estimate the annual operating cost of the heater if the Dowtherm evaporator is 80% efficient and the price of natural gas is $4.60/MMBtu. Assume 8000 operating hours p..
The latter is available from the Trace Research and Development Center at the University of Wisconsin, Madison. Also try visiting the applicable websites.
What temperature will be indicated by the thermocouple? Assume free convection from the thermocouple.
Water is pumped at a flow rate of 2.25 kg/min from 1 bar 20 °C to 15 bar. Determine the amount of work and the temperature of water at the exit if the efficiency of the pump is 78%.
To be satisfactory quality the ratio of 'A' to 'B' in the mixture must be 100 to 1or higher. 'D' reacts with both 'A' and 'B' as follows;A + D?R-rA= 21 CACDB + D?S-rB= 147 CBCDAssuming that the reaction go to completion, how much 'D' need be added..
The maximum possible purity of glycol in the finished extract and the maximum purity of water in the raffinate for one equilibriumstage.
Suppose the value of 25 is changed to 10 in the equation, defining am and a current pulse of 10mA (hyperpolarizes the membrane) is passed through the membrane of a squid giant axon for a very long time. At time t¼0, the current pulse is removed. S..
A three-phase load, connected to a 440-V bus, draws 120 kW at a power factor of 0.85 lagging. In parallel with this load is a three-phase capacitor bank that is rated 50 k VAR. Determine the resultant line current and power factor.
Under these conditions, what is the depreciation cost during the sixth year of the total life if straight-line depreciation is used?
Two beds are used, with one in operation and one in regeneration. If the bed is designed to be 80% loaded at the end of a 2 hour operation cycle, estimate the bed volume. Also determine the flow rate of sodium hydroxide required during the regener..
Aqueous sulfuric solutions containing 15.0 wt% H2SO4 and 80.0 wt% H2SO4 are mixed to form a 30.0 wt% product solution. The 15 % solution was in a lab in which the temperature was 77 F. The 80% solution had just been taken from a storage cabinet in an..
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd