Design a hydrocooling unit that can cool fruits and vegetables from 30°C to 5°C at a rate of 20,000 kg/h under the following conditions: The unit will be of flood type that will cool the products as they are conveyed into the channel filled with water. The products will be dropped into the channel filled with water at one end and picked up at the other end. The channel can be as wide as 3m and as high as 90 cm. The water is to be circulated and cooled by the evaporator section of a refrigeration system. The refrigerant temperature inside the coils is to be -2°C, and the water temperature is not to drop below 1°C and not to exceed 6°C. Assuming reasonable values for the average product density, specific heat, and porosity (the fraction of air volume in a box), recommend reasonable values for the quantities related to the thermal aspects of the hydrocooler, including a) how long the fruits and vegetables need to remain in the channel, b) the length of the channel, c) the water velocity through the channel, d) the velocity of the conveyor and thus the fruits and vegetables through the channel, e) the refrigeration capacity of the refrigeration system, and f) the type of heat exchanger for the evaporator and the surface area on the water side.
Thank you so much sir
For making video
How come sir that 400 cfm per ton for normal comfort and 350 cfm per ton for high latent heat conditions as thumbrule?
Design a hydrocooling unit that can cool fruits and vegetables from 30°C to 5°C at a rate of 20,000 kg/h under the following conditions: The unit will be of flood type that will cool the products as they are conveyed into the channel filled with water. The products will be dropped into the channel filled with water at one end and picked up at the other end. The channel can be as wide as 3m and as high as 90 cm. The water is to be circulated and cooled by the evaporator section of a refrigeration system. The refrigerant temperature inside the coils is to be -2°C, and the water temperature is not to drop below 1°C and not to exceed 6°C.
Assuming reasonable values for the average product density, specific heat, and porosity (the fraction of air volume in a box), recommend reasonable values for the quantities related to the thermal aspects of the hydrocooler, including
a) how long the fruits and vegetables need to remain in the channel,
b) the length of the channel,
c) the water velocity through the channel,
d) the velocity of the conveyor and thus the fruits and vegetables through the channel,
e) the refrigeration capacity of the refrigeration system, and
f) the type of heat exchanger for the evaporator and the surface area on the water side.
Please explain how to calculate air lps to water lps
Nice work
Please provide some resources to learn more about the RAC
CP ARORA is good in my opinion
PL Ballaney
Hindi me video translate Kare to Jada view milega
Please translate to Hindi
Please sir translate to Hindi