Information about cold storage warehouses, storage frozen rooms manufacturers and distributors from Thailand.

 
 
Cold Storage Room Type
Cold Storage Room for Fish
Cold Storage Room for Flowers
Cold Storage Room for Fruits
Cold Storage Room for Ice Cream
Cold Storage Room for Meat
Cold Storage Room for Medicines
Cold Storage Room for Vegetables
Cold Storage Room for Wine
 
 
 
 
 
 
 
 
 
 

Troubleshooting Cold Storage Problems

There are several refrigerated storages in Thailandused for temporary or long-term storage of fruits & vegetables. Storages are used as a selling tool to swish out peaks and valleys in production, allow further continuous give to clients, and facilitate maintain the quality of manufacture. Storages are on the market in a vast array of sizes, layouts and construction ways that, all of that are very important to their correct perform.

This Page lists a number of the foremost common issues found in refrigerated storages, with attainable causes and solutions.

Cold Storage Problem: Some products are freezing

Possible Cause(s)

  • Heavy freezing air from evaporator coils are dropping on product
  • Poor airflow or container stacking arrangement, inflicting freezing, dead air spots.
  • Products are touching, or are closed to freezing walls.
  • Product stacked too high near coils.

Possible Solution(s)

  • Adjust coils to run at higher temperature; install baffles beneath coils to deflect cold air and allow it to heat up before hitting product.
  • Use smoke generator to go looking out dead air spots; relocate coils or increase their fan capacity; install air tubes / additional circulation fans; layout containers to plug smart air distribution.
  • Re-insulate, notably on concrete foundations; keep product removed from cold walls.
  • Stack product lower, notably in direct airflow of evaporator coil fans.

Problem: Some product is shriveling

Possible Cause(s)

  • Storage relative humidity too low
  • Vapor pressure differential too high; heat, moist product versus cold, dry air.
  • Wooden containers and storage structure itself is drawing moisture out of the air and products.
  • Products like pome fruit seem wrinkled when slightly frozen.

Possible Solution(s)

  • Install a lot of coils so that they will operate at a lower temperature distinction between "cold" air leaving the coils and air that the merchandise "feels"; this reduces air dehumidification; install humidification equipment which will provide ultra-fine or atomized mist; it's onerous to place water into desiccated product.
  • Remove field heat sooner and promptly when harvest therefore there's less vapour pressure distinction between product and storage air, therefore less incentive for moisture to go away the merchandise, inflicting desiccation.
  • Wet the wood containers before putting in place long run storage; tests show that wood bins will increase 100% in weight by absorbing moisture; wet plywood walls and floor further.
  • See attainable solutions beneath freezing; pome fruit that has been slightly frozen doesn't shrivel from moisture loss and can lose wrinkles when thawed.

Problem: Some products are sweating or free water on it

Possible Cause(s)

  • Warm, moist air from recently placed product is hitting cold product.
  • Outside air are hitting cold products once removal from storage.
  • Defrost water from evaporator coils are dripping on turn out.
  • Humidification system droplets are too big.

Possible Solution(s)

  • Keep "refrigerated" product being stored for extended periods in separate space from "hot" product being cooled; install a lot of refrigeration to scale back dramatic air temperature will increase.
  • Allow products to heat up gradually; condensation is unavoidable if products are placed directly into a heat, moist atmosphere.
  • Drain condensate away onto floor if attainable to assist humidify the storage.
  • Install humidification equipments which will provide ultra-fine or atomized mist.

Problem: Products are displaying premature ripening, discoloring, and loss of leaves (plants)

Possible Cause(s)

  • Ethylene gas may be present.
  • Storage temperature is also too high.

Possible Solution(s)

  • Remove high ethylene producing fruits in storage area such as; apples, pears, cantaloupes, plums, peaches, apricots, muskmelons and tomatoes; avoid using forklifts that emit ethylene in the exhaust; thoroughly ventilate storage rooms before use.
  • Lower storage temperature.

Problem: Products have odors or off-flavors

Possible Cause

  • Products nearby that readily transfer odors and off-flavors.

Possible Solution

  • Remove crops like cabbage, rutabagas, celery, potatoes, onions, lettuce, or garlic.

Problem: Product is rotting

Possible Cause(s)

  • Products are too heat and is breathing and aging rapidly.
  • Product broken, overripe, or of poor quality before storage.

Possible Solution(s)

  • Provide fast and uniform speedy cooling when harvest; maintain suggested temperature throughout the storage amount.
  • Increase culling rates before storage; don't expect the storage to show poor quality product into a high quality product with an extended shelf life.

Problem: Walls / ceiling are condensation

Possible Cause

  • Interior surfaces are colder than the space air hitting it.

Possible Solution(s)

  • Install additional insulation to heat up wall surfaces on top of the space air's dew point; tighten up building; give higher airflow in these areas.

Problem: Walls / ceiling are mouldy

Possible Cause

  • Surface temperatures and moisture level are ideal for mould growth.

Possible Solution

  • Install additional insulation to heat up wall surfaces on top of the space air's dew purpose, tighten up building; give higher airflow in these areas; dry out area and clean and disinfect the cladding.

Problem: Walls / ceiling are rotting

Possible Cause(s)

  • Moisture migrating into wood cladding/structure.
  • Improper installation of, or missing vapour barrier.

Possible Solution(s)

  • Before reconstruction, verify why and the way to forestall moisture from migrating in once more.
  • Re-insulate if required, probably with completely different insulation; vapour barrier might not be advisable looking on use.

Problem: Ceiling is dripping

Possible Cause(s)

  • Poor attic ventilation permitting a build from hot, moist air in attic.
  • Insufficient attic insulation inflicting condensation that drips through the cracks.
  • Improper installation of or missing vapour barrier.

Possible Solution(s)

  • Provide 1 m? of unrestricted eave inlet space per 600 m? of ceiling, with same unrestricted peak space, or mechanically ventilate @1 air change/2 minutes.
  • Add insulation to stop the nice and cozy, attic facet of the insulation from approaching the cold temperature of the storage below.
  • Vapour barrier location depends on vapour pressure drive direction; a vapour barrier might not be advisable betting on building use.

Problem: Floor is drying out notwithstanding floor is sprayed with water

Possible Cause(s)

  • Storage relative humidity is simply too low
  • Floors have cracks for water to flee

Possible Solution(s)

  • Install a lot of coils so that they will operate at a lower temperature distinction between "cold" air leaving the coils and air that the merchandise "feels"; this reduces air dehumidification; install humidification equipment that may offer ultra-fine or atomized mist; it's exhausting to place water back to desiccated product.
  • Flood floors to envision if water runs away, particularly along concrete foundation; seal if necessary.

Problem: within air temperature fluctuates throughout storage amount

Possible Cause(s)

  • Thermostat not located properly and doesn't sense average space temperature.
  • Airflow not uniform throughout storage.
  • Evaporator coils have too massive a temperature distinction across them.
  • Poor quality or insensitive thermostats.

Possible Solution(s)

  • Install thermostats in average space airflow, typically within the come back airflow to evaporator coils; relocate thermostats off from warm/cold walls, doors, lights, cold air leaving the coils, or hot product.
  • Use smoke generator to see location of dead air spots; relocate evaporator coils or increase the capability of their fans (if possible); install air tubes / additional fans; rearrange storage containers to permit a lot of uniform airflow.
  • Lower the temperature distinction across the evaporator coils; recognizing that this can lead to a lower potential heat removal capability.
  • Use sensible equipment since uniform temperature management is significant for maintaining product quality.

Problem: within air temperature is hotter than desired throughout storage amount

Possible Cause(s)

  • Inadequate refrigeration
  • Insufficient insulation for summer use
  • Poor attic ventilation
  • Hot sunny days with dark, roof surface
  • Airflow not uniform or of insufficient capability in storage
  • Poor thermostat location that senses cold temperatures

Possible Solution(s)

  • Install a lot of refrigeration cooling capability.
  • Install minimum R-20 in walls, R-24 in attic, R-12 on foundation; floors are seldom insulated inOntario, except for year-round use, the values are often justified.
  • Provide one m? of unrestricted eave inlet space per 600 m? of ceiling, with same unrestricted peak space, or mechanically ventilate at one air change/2 minutes.
  • Paint roof chalk-white and supply adequate attic ventilation, since attic temperatures will reach 60?C if the roof may be a dark color.
  • Use smoke generators to work out location of dead air spots; relocate evaporator coils or increase the capability of their fans (if possible); install air tubes / additional fans; rearrange storage containers to permit a lot of uniform airflow.
  • Install thermostats in average area airflow, sometimes in come airflow to evaporator coils; avoid locating thermostats on outside cold walls, near doors, or close to the cold air leaving evaporator coils.

Problem: within air temperature is colder than desired throughout the storage amount

Possible Cause(s)

  • Thermostat poorly located and senses hotter temperatures
  • Insufficient insulation for winter use

Possible Solution(s)

  • Install thermostats in average area airflow, sometimes in come airflow to evaporator coils; avoid location thermostats on outside heat walls, or close to doors or lights.
  • Install minimum R-20 in walls, R-24 in attic, R-12 on foundation; floors are seldom insulated inOntario, except for year-round use, the value are often justified.

Problem: within air temperature isn't uniform

Possible Cause(s)

  • Airflow not uniform or of insufficient capability in storage
  • Short-circuiting of air directly back to the evaporator coils as a result of poor storage container arrangement

Possible Solution(s)

  • Use smoke generators to work out location of dead air spots; relocate evaporator coils or increase the capability of their fans (if possible); install air tubes / additional fans; rearrange storage containers to permit a lot of uniform airflow.
  • Avoid alleys/openings that enable air to easily by-pass product or storage containers; air can invariably take the simplest path and air should be forced to travel a meandering path to maximize cooling potential; use a smoke generator to examine for short-circuiting.

Problem: The storage air smells unhealthy or is tough to breathe

Possible Cause

  • Gases like carbon dioxide or ethylene could also be gift in excessive quantities as a result of decay or respiration.

Possible resolution

  • Look for and get rid of decaying product; install exhaust fan that has ventilation of one or a pair of air changes/day; some newer storages (not designed as Controlled Atmosphere storages) are terribly tight so there's no natural air-change ventilation.

Problem: Evaporator coils are icing up and run lots of condensate

Possible Cause(s)

  • Coils running at too low a temperature.
  • Defrost system not running properly.
  • Storage relative humidity is high.

Possible Solution(s)

  • Increase coil temperature; this might need larger capability evaporator coils
  • Repair defrosts system or install a more practical one.
  • Install more practical defrost technique, since the relative humidity ought to be high for many crops.
  • Some crops like onions, garlic, or squash need lower humidity.

Problem: Electrical consumption is rising

Possible Cause(s)

  • Insulation is wet or missing.
  • Higher volume of product being cooled than before.
  • Products are getting into storage hotter than in previous seasons.
  • Building less tight or doors open a lot of typically.
  • Malfunctioning refrigerated equipments.

Possible Solution(s)

  • Correct moisture drawback and re-insulate with an insulation that's a lot of appropriate for cold storages.
  • Install a lot of refrigeration as crop production rises; one rarely has 'too a lot of refrigeration capacity', however the system ought to be properly sized to cut back prices.
  • Earlier varieties and variable weather would possibly mean harvested products are hotter, requiring a lot of refrigeration capability than before.
  • Re-tighten the building since they are doing dwindle tight over time; install flaps over access doors.
  • Get equipment serviced by a professional refrigeration contractor accustomed to the wants of farm turn out.