Milk Chiller
Product Description:
Our reputation in the market is largely attributable to our best quality range of Milk Chiller . Our offered heat exchanger is properly manufactured by our adept professionals using the fine quality components at our well-sounded production unit. The provided heat exchanger is highly acclaimed by our patrons owing to its best functionality and smooth operation in exchanging heat through plates. Furthermore, we offer this heat exchanger to our clients at affordable price.
Features:
- Long operational life
- Optimum performance
- Low maintenance
- Reduced Fouling
- Competitive Price
- Increase in Turbulence
- Wide range of Duties
- Heat Transfer Coefficients Is High
- No Space Constraint
- Expansion Provision
- Liquid Hold-up is Minimal
Specification:
Material: SS
Milk Chilled Tank: 1000L to 12000L
Size: Customized
Design Specification of Milk Chiller:
The Instant Milk Chilling Unit of Multi collection center has two units of 4000 liter capacity supplied by Alfa Laval Private Limited which cool the milk indirectly by chilled water from a big water tank. This type of refrigeration system is called Ice-bank refrigeration system and it works on R12. It is vapor compression refrigeration with evaporator coils submerged in water in a big water tank. The system is run in off peak hours and water in the tank is cooled to 0°C. When milk is received it is cooled by chilled water in plate type heat exchanger and kept in an insulated tank. The design and performance details of instant milk chilling unit designed for chilling 4000 Liters of milk per day from 35° C to 4° C are as follows:
Compressor: Freezing 750, 3 cylinder open type reciprocating compressor operating through belt drive at 580 rpm by a 7.5 hp induction motor and operates at plus 43 ° C condensing temp and minus 10 °C evaporating temp on Freon 12 gas. The running time of compressor is 16 hours per day. Condenser: Air-cooled condenser with two air fans.
Expansion Device: The Thermostatic expansion device of suitable length for operating between receiver and evaporator.
Evaporator: Refrigerant R12 passes through submerged cooling coils in the 4000 Liters capacity water tank with all necessary fittings. The cooling capacity of the system is 12.31 kW. The schematic arrangement of Instant Milk Chilling Unit is shown in Fig 1. The simple saturated vapor compression refrigeration cycle is used in this milk-chilling unit.
The following assumptions were made for the analysis.
- Pressure drops at compressor inlet and outlet valves are as given: For R12, R134a and R152a ∆pi = 0.1 bar and ∆po = 0.25 bar. For R 290 and HCFC Refrigerants ∆pi =0.2 bar and ∆po =0.4 bar. For R600 and R600a ∆pi =0.03 bar and ∆po=0.05 bar
- Pressure drops in condenser and evaporator has been neglected.
- No pressure and temp losses has been considered for connecting pipes.
- There is no super-heating or sub-cooling in the cycle. 5 The ideal isotropic and motor efficiency has been considered.
Images:
Milk Chiller
