You are charged with specifying a cooling system for a house. The solar andinternal gains have been calculated already, but you need to increase itscapacity to account for ventilation. The ventilation system will constantlyexhaust 200 cubic feet per minute (CFM) of stale air and replace it with 20021CFM of fresh air. On a design day, the outdoor air is 90°F dry bulb temperatureand 73°F wet bulb temperature. Indoor air is expected to resolve to "standard21air" at 75°F and 50% relative humidity (%RH). What is the additional amountof cooliracity required to account for the ventilation system? Youranswer should be in Btu/h.Answer:

Answered: Image /qna-images/answer/814633c3-466c-43c5-8991-8a76ca26d862.jpg

Answered: You are charged with specifying a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Air treated as an ideal gas and having a specific heat at constant volume Cv=1200 J/kg.K undergoes a process. During this process, heat is observed to exit the system with an amount of 10 k) while work is provided to the system with an amount of 24 kJ. If the initial temperature of air was 20 C, what is the final temperature of air if the mass of air undergoing the process is 0.2 Kg. Select one: O a. 81.5 C O b. 74.5 C O c. 69.5 C d. 78.3 C
Let us assume that a data center has a power usage effectiveness of 2.2. You will decrease the power amount by cooling the system by %40 using surrounding air cooling. What would be the best possible PUE which can be accomplished?
3) When a person enters his house, which is completely closed in summer, he sees that the temperature is 34°C. After turning on the air conditioner, the temperature of the house becomes 22 °C within 15 minutes. Since the efficiency coefficient of the air conditioning system is 3.2, a) the electrical power drawn by the system, b) heat dissipated to the environment, and c) Assuming that it works 8 hours a day and the electricity price is 0.6 TL per kWh, find its cost for 4 months. Assume that the entire mass inside the house is equivalent to 1000 kg of air. For air, take Cv = 0.73 kJ/kgK, Cp= 1.0051 kJ/kgK.
As for the formulation of the basic design for a refrigeration system and cryogenic plant for liquid oxygen production, create a table showing the parameters assumed and used in computations such as the indoor and outdoor temperature.
Create a various assumptions that will be required in the design of the refrigetion and cryogenic plant for oxygen production which is based on realistic design assumption. Help me with thisformulation of the basic design for an air-conditioning system , just show the table that shows the parameters that were assumed and will be used in the computations.
Pls.answer thank you! A classroom that normally contains 40 people is to be air-conditioned with window air-conditioning units of 5 KW cooling capacity. A person at rest may be assumed to dissipate heat at a rate of about 360 KJ/hr. There are 10 light bulbs in the room, each with a rating of 100 watts. The rate of heat transfer to the classroom through the walls and the windows is estimated to be 15,000 KJ/hr. If the room air is to be maintained at a constant temperature of 21°C, determine the number of window air-conditioning units required.
bliuzodt to mopolb 9. If machine parts are degreased by means of kerosene as shown in the diagram, how much kerosene make-up is needed per day? How much kerosene has to enter the degreasing vat per day? There are about 3 lb of grease per 100 lb of machine parts, and 60 tons of machine parts are processed each day. Five thousand pounds of kerosene (the 10% solution) are carried away by the machine parts each day but drip off and are caught and put back in the degreasing vat. Two hundred pounds of the 10% solution are lost each day from the vat by evaporation, spillage, or by being carried away.
Q3: For building in the city of Nassiriah, it is given that: Room sensible heat gain = 40 KW = 10 KW Room latent heat gain Inside design condition: 1- Apparatus dew point temperature. 2-Condition of air leaving cooling coil. 3- Ventilation air mass and volume flow rate. 4- Total cooling load of the conditioning plant. FTP لاطول مار 25 DBT, 50 % RH Outdoor design condition: 43 DBT and 27.5 WBT Bypass factor of the cooling coil = 0.1 Seta The return air from the space is mixed with the outside air before entering the cooling coil in the ratio of 4/ by weight. 도 Determine: SHYLH h₂-hy Ess=fre-pdo 4₂-4.
Wind power is defined as the use of air flow through wind turbines to provide the mechanical force to generate electricity. Wind power is an alternative to burning fossil fuels, and is renewable and produces no greenhouse gas emissions during operation. Modern horizontal-axis wind turbines often use three blades. Theoretically, the maximum power P (unit: watts) that a three-blade wind turbine can extract from the wind power can be calculated as: P = pAv³C₁. . (Equation 1) where p is the air density (kg/m³), A is the sweep area of the turbine (m²) and can be calculated from the length of the turbine blades, and v is the wind speed (m/s). Cp is the power coefficient that is unique to each turbine type. This coefficient represents the amount of kinetic energy from the wind that is captured by the turbine. From the Betz's limit law we know that the best power conversion possible is Cp,max = 0.59. Part 1 Given the following data: Blade length /= 50 m Air density p= 1.5 kg/m³ Power…
Residual oil, with a heating value of 18,480 BTU/lbm, is used as a fuel in a power plant which produces 947,870 BTU/s of electricity. The overall efficiency of the power plant is 52%. Determine the: a. Heat input, in BTU/s b. Daily fuel consumption, in lbm c. Dimensions of the cylindrical storage (assuming length is equal to the diameter), in ft. d. Heat rejected to the environment, in BTU/s. The density of the oil is 62 lbm/ft3
Q1: If a calorimeter is not assumed to be adiabatic, how would one calculate the heat transfer? Guide Questions: What are the parameters to be considered and the equations to be used? What law of thermodynamics does this transfer of heat to the surroundings touch? Is an adiabatic system automatically considered as a closed system? Please help me understand by also attaching a reference/book/journal article. This would help me in my essay. Thank you.
Hi guys, Data assumption coal boiler operation : Steam consumption = 300 kg steam/shift, coal price per kg = $0.5, coal calorie = 6300 Kcal/kg. Questions: 1. how to calculate cost ($) steam per shift ? 2. how to calculate steam calorie per shift ? Thanks

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