Calculate the total heat gain of a restaurant at its peak occupancy load at about 1PM. When hundred dinners and 15 employees are present, Given: Heat gain through wall and roof: 2500KJ/hr; Heat gain through glass areas:500KJ; Number of florescent tube lights:60; Rating of each tube light:40W; Rating of toasters inside space:2650W; Sensible heat gain per dinner: 250K¡/hr; Latent heat gain per dinner: 260K¡/hr Sensible heat per employee:305Kj/hr Latent heat per employee:545KJ/hr Inside design conditions:25 °C DB, 19°C WB Outside design conditions: 40 °C DB, 27 °CWB Ventilation requirement: 0.4cmm/person

Calculate the total heat gain of a restaurant at its peak occupancy load at about 1PM. When hundred dinners and 15 employees are present, Given: Heat gain through wall and roof: 2500KJ/hr; Heat gain through glass areas:500KJ; Number of florescent tube lights:60; Rating of each tube light:40W; Rating of toasters inside space:2650W; Sensible heat gain per dinner: 250K¡/hr; Latent heat gain per dinner: 260K¡/hr Sensible heat per employee:305Kj/hr Latent heat per employee:545KJ/hr Inside design conditions:25 °C DB, 19°C WB Outside design conditions: 40 °C DB, 27 °CWB Ventilation requirement: 0.4cmm/person

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter44: Geothermal Heat Pumps

Section: Chapter Questions

Problem 12RQ: The function of the pressure tank in an open-loop, geo-thermal heat pump well system is to prevent...

See similar textbooks

Similar questions

Calculate the total heat gain of a restaurant at its peak occupancy load at about 1PM. When hundred dinners and 15 employees are present, Given: Heat gain through wall and roof: 2500Kj/hr; Heat gain through glass areas:500Kj; Number of florescent tube lights:60; Rating of each tube light:40W; Rating of toasters inside space:2650W; Sensible heat gain per dinner:250Kj/hr; Latent heat gain per dinner: 260Kj/hr Sensible heat per employee:305Kj/hr Latent heat per employee:545Kj/hr Inside design conditions:25 oC DB, 19 oC WB Outside design conditions: 40 oC DB, 27 oCWB Ventilation requirement: 0.4cmm/person
2. A creamery must cool 20,000 liters of milk received each day from initial temperature of 29 °C to afinal temperature of 2 °C in 5 hours. If refrigeration losses amount to 10 percent of the cooling load, what must be the capacity of the refrigerating machine? Note: Specific heat of milk is 3.9 kJ/kg-K and S.G. = 1.05
Pls. Answer thank you! An air-conditioning system is used to maintain a house at 65°F when the temperature outside is 85°F. The house is gaining heat through the walls and windows at a rate of 1250 Btu/min, and the heat generation rate within the house from people, lights, and appliances amounts to 350 Btu/min. Determine the minimum power input required for this air-conditioning system
Pls. Answer thank you! An auditorium seating 1600 people is to be maintained at 80°F dry bulb and 65°F wet bulb temperature when outdoor air is at 91oF dry bulb and 75oF wet bulb. Solar heat load is 120,000 Btu/hr and supply air is at 60°F, determine the amount of supply air. (Use sensible heat load of 225 Btu/hr per person)
3. For an air-conditioning system, the outdoor .. and indoor design dry bulb temperatures are 45°C and 25°C respectively. The space to be air-conditioned is 20m x 30m-x 5 m and infiltration is estimated to be one air are 1.2 (kg of dry air)/m³ and 1.02 kJ/(kg of dry air) °C, then the sensible heat load due to infiltration is, nearly
Hello Sir,Good Morning.I have a question in my homework related thermodynamics lesson. The following below is my question. Please advice. Thank you. Regards,Irfan An air conditioning system is used to keep the house at 65°F when the outside temperature is 85°F. The house gets heat through the walls and windows at a rate of 810 Btu/min, and the rate of heat generation inside the house from occupants, lights, and equipment is 120 Btu/min. Determine the minimum power input required for this air conditioning system.
Heat is produced by computers while they run. Do you have any questions concerning computer cooling systems?
A creamy must cool 20,000 liters of milk received each day from initial temperature of 32℃ to a final temperature of 1℃ in 6 hours. If refrigeration losses amount 12 percent of the cooling load, what must be the capacity of the refrigerating machine? Note: Specific heat of milk if 3.9 kJ/kg-K and S.G. = 1.05.
Problem An electric heater is to heat 18 kg of oil per min. from 24.5 °C to 185.5 °C. Specific heat of oil is 2.018 KJ/kg- °C.Calculate the power consumed by the heater. Ans. Problem The overall efficiency of an electric system, coal pile to lights a lamp is What fraction of a kg of coal containing 1350 W lamp for 45 minutes? 97.4694 Kw 18 %. 10250 KJ/kg must be consumed to light a Ans. 1.976 KJ
Consider a heat transfer situation. Heat flows from the hot item or area to the cold item or area. Describe this in terms of spontaneity.
A meeting hall is maintained at 25°C, 18Cwb. The space has a cooling load of 40 kw of which 32 kw is sensible cooling load. The temperature of the supply air to the space must not be lower than 18°C. Determine A. Sensible heat ratio B. Amount of air supply to the space (kg/s) C. Conditions of supply air D. Capacity of supply fan (CFM)
Question 6: Find the required length of a 5 cm-diameter tube to heat water from an inlet temperature of 30 °C to an outlet temperature of 100 °C using either: a) Constant temperature of 200 °C, or b) Constant heat flux of 10,000 W/m?. The mass flow rate of the water is 0.5 kg/s, its thermal conductivity is 0.04 W/m.K and its specific heat is 4190 kJ/kg.K. Assume a fully-developed flow.