Cold Store & Ripening Chamber Climate Monitoring & Automation System E: Mobile: (India) 1 EK Engineering (India) Climate Control and automation system

Topics covered:  Why gas monitoring is needed  Importance of proper ventilation for long-lasting, fresh & safe products  Monitoring parameters  Horticulture cold stores monitoring  Ripening chamber monitoring  Meat etc processing and cold stores  Topology of the system and component integration E: Mobile: (India) 2

Need of Gas Monitoring: E: Mobile: (India) 3 CO 2 Monitoring : Agriculture and horticulture products produce CO2 (carbon dioxide) gas during breathing. High CO2 concentration reduce breathing, thereby form dull & wrinkle skin, low skin shine, high sweetness (specially in case of potatoes etc). Reduce product weight, market price. High CO2 also reduce O2 concentration resulting in anaerobic decomposition. Low O2 also cause darkening of potato chip colour, ultimately result in decay of interior cell with black heart.

Need of Gas Monitoring: E: Mobile: (India) 4 O 2 Monitoring : Agriculture and horticulture products get reverse photosynthesis recycle after harvesting and storage. Low O2 cause anaerobic fermentation, skin wrinkle, black skin spots, reduced shining of peel skin Reduce moisture contents Reduce weight Reduce quality

Need of Gas Monitoring: E: Mobile: (India) 5 NH 3 Monitoring : Ammonia is used as refrigerant in chillers and refrigeration plants. Ammonia is very toxic gas for biological life and human and life threatening with TWA = 25 ppm Ammonia leakage can percolate to stored items and thereby enter food chain. Ammonia can damage with corrosive effect on stored items

Need of Gas Monitoring: E: Mobile: (India) 6 Freon (R134, R22, R410 etc) Monitoring : Though normally Freon gases are non-toxic directly, their leakage cause oxygen depletion in the ambient air, thereby suffocation, death etc. Freon are either CFC or HCFC, and cause considerable damage to ozone layer. Freon leakage can sometime lead to fire, causing considerable damage to assets.

Need of Gas Monitoring: E: Mobile: (India) 7 Ethylene Monitoring : Ethylene is natural ripening agent and produced & emitted by ripening, sugary fruits / items Ethylene cause sweetening of fruits and products Over ripening cause fermentation and damage to products, thereby ethylene concentration need to be control and keep under required limits. Low ethylene concentration cause under-ripening, hence low market price of the products, while high ethylene concentration can damage products, increasing spoilage.

Need of Gas Monitoring: E: Mobile: (India) 8 Temperature & humidity Monitoring : High temperature will increased metabolic activities in the stored product, thereby increase damage. Low temperature will freeze up the inside content and reduce natural sweetness and taste, sometime forming carbohydrate, sucrose crystals High humidity will increase moisture content in the stored items, leading to bacterial and worm formation. Sometimes, dew formation also lead to considerable spoilage. Low humidity will reduce weight, sweetness, natural flavour and increase in rejection

Monitor & Control Parameters: E: Mobile: (India) 9 Potato Cold Stores: Carbon dioxide monitoring – 0-2% or 0-5% Vol Temperature monitoring: °C Humidity monitoring: 0-100% Rh Ammonia leakage monitoring – 0-300ppm Freon leakage monitoring Early Smoke detection for smoke and fire monitoring at low temperature

Monitor & Control Parameters: E: Mobile: (India) 10 Controlled Atmosphere Chambers (CA): Carbon dioxide monitoring – 0-2% or 0-5% Vol Oxygen monitoring – 0-25% Vol Ethylene Monitoring Temperature monitoring: °C Humidity monitoring: 0-100% Rh Ammonia leakage monitoring – 0-300ppm Freon leakage monitoring

Monitor & Control Parameters: E: Mobile: (India) 11 Agricultural product Cold Stores: Carbon dioxide monitoring – 0-2% or 0-5% Vol Ethylene Monitoring Temperature monitoring: °C Humidity monitoring: 0-100% Rh Ammonia leakage monitoring – 0-300ppm Freon leakage monitoring

Monitor & Control Parameters: E: Mobile: (India) 12 Ripening Chamber (Mangoes, Banana etc): Carbon dioxide monitoring – 0-2% or 0-5% Vol Ethylene Monitoring Temperature monitoring: °C Humidity monitoring: 0-100% Rh Ammonia leakage monitoring – 0-300ppm Freon leakage monitoring

Monitor & Control Parameters: E: Mobile: (India) 13 Mushroom growing chamber/ facility: Carbon dioxide monitoring – 0-2% Vol Temperature monitoring: °C Humidity monitoring: 0-100% Rh

Monitor & Control Parameters: E: Mobile: (India) 14 Meat, sea food Cold Stores: Carbon monoxide monitoring H2S monitoring – 0-50 ppm Temperature monitoring: °C Humidity monitoring: 0-100% Rh Ammonia leakage monitoring – 0-300ppm Freon leakage monitoring Meat storage / warehouse may need to monitor SO 2, Methane etc

Monitor & Control Parameters: E: Mobile: (India) 15 Pharmaceutical, medicine Cold Stores: Mixed Gas Monitoring for toxicity Temperature monitoring: °C Humidity monitoring: 0-100% Rh Ammonia leakage monitoring – 0-300ppm Freon leakage monitoring

Specifications PLC / Control Unit:  Digital communication architecture with bi-directional communication with gas detectors  Multiple threshold for each sensor  Closed loop, feedback mode with gas detectors, MCC panel, BMS and FAS system.  LCD based human machine interface or display unit for parameter, status display  Auto and manual system operation, and remote local function in Fan and Compressor MCC panel  Integration with fire alarm system (FAS) E: Mobile: (India) 16

Specifications PLC / Control Unit:  Threshold settings, configuration via touchscreen  Auto-diagnostic watchdog with built in error code, fault LED indication  Password protection against unauthorized access  Remote input facility  Digital output and control signals for fan electrical panels  Configurable with variable frequency drives for regulating fan speed and compressor based on identified parameters E: Mobile: (India) 17

System Architecture: E: Mobile: (India) 18 S1 Control Unit / Panel Control Room / Area S = CO2, Temp, RH, O2, Freon sensors Communication cable: 2 x 2-core twisted, shielded cable S2 S6 S7 S5 S8 SnSn S4 S3 Fire Alarm System Fan VFD panel Cold Room Chambers

Contact us: E: Mobile: (India) 19 Website: Mobile / WhatsApp: