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Which of these may be cosidered an attrubute to the constrution and design of a transformer...
which of the following are constarins of the design and build of a trnaformer vault and why? cost, safety, equipment sizing, equipment temp/ heat level
(b) High voltage electric power transmitted to a city is dropped to a low voltage in a transformer before use. To keep the transformer at a steady temperature, heat (called the Joulean power dissipation) needs to be transferred to an ambient. Assuming the transfomer to be a vertical cylinder with a diameter of 0.4 m and height of 1 m, the walls are kept at 90°C in a stagnant fluid bath Determine the allowable heat dissipation if the fluid is...
The transformer on a utility pole steps the voltage down from 10000 V to 220 V for use in a college science building. During the day, the transformer delivers electric energy at the rate of 13.0 kW . a) Assuming the transformer to be ideal, during that time, what are the primary and secondary currents in the transformer? A b) If the transformer is only 93 % efficient (but still delivers electric power at 13.0 kW ), how does its...
Design Problem Design a small chiller room 2.35 m wide by 6 m long and 2.38 m high that is to be used to chill and store a food product. The chiller is to be loaded with 60 buckets of the food product at 23 °C which needs to be cooled down to 3 °C within 24 hours using air at 1 °C, with a heat transfer coefficient of 36 W m2 K Tasks 1. Calculate the peak refrigeration loading...
hair dryer may be idealized as a circular duct through which a small fan draws ambient air and within which the air is heated as it flows over a coiled electric resistance wire. (1) If a dryer is designed to operate with an electric power consumption of Pelec= 1500 W and to heat air from an ambient temperature of Ti= 20°C to a discharge temperature of To= 45°C, at what volumetric flow rate ∀˙ should the fan operate? Heat loss...
2. (25 pts) Nuclear power plants have large amounts of heated water to cool, which may be done in a cooling tower. A sample tower reduces the temperature of warm water from 130 F to 90'F (see figure at right). Air without water vapor flows into the tower at Wet air 156,900 b/hr 151,000 lb/hr Given that the air removing heat along with some water flows at 156,900 lb/hr, what is the flowrate of the cooled warm water 250,000 lb/hr...
Please can someone do this i will approciate your help. Design of a ground source heat pump. The house can be heated by a resister heater, a heat pump, or a ground source heat pump system Design of a ground source heat pump system for house heating. Among these systems, the ground source heat pump is the most energy efficient heating system. Please describe the heat pump system for a house that needs 150 M BTU each day if room...
help with the following problem please Proceed to design a digital circuit in which you want to control two filling water pumps from a well to a reservoir. The system has 4 different sensors: 1. T1: Pump temperature 1 2. T2: Pump temperature 2 3. c: Minimum water level in the tank 4. d: Maximum water level in the tank The system must operate taking into account the following conditions: A) If the water level of the tank is between...
A sealed room has a volume of 32 m3. It's filled with air, which may be assumed to be diatomic, at a temperature of 25°C and a pressure of 9.95 ✕ 104 Pa. A 1.14 kg block of ice at its melting point is placed in the room. Assume the walls of the room transfer no heat. What is the equilibrium temperature (in °C)?
Which of the following is NOT true? Select one: a. The f-chart design method is a correlation of the results of many hundreds of thermal performance simulations of solar heating systems performed with TRNSYS. b. The f-chart design method can quickly estimate the long-term performance of solar energy systems of standard configurations c. The f-chart design method can be used for a standard air based solar heating system d. The f-chart design method is used to design commercial-type large scale...