Cooling tower experimental apparatus
This is a tabletop experimental device for an open cooling tower (counterflow type) that cools the cooling water for building air conditioning and heating systems. Temperature-controlled warm water is sprayed from the top of the cooling tower and is cooled by air while passing through the packing material before returning to the water tank. The orifice at the intake measures the air volume, and the air sent by a variable speed fan is discharged from the bottom to the top of the cooling tower (counterflow). The measurement values from each sensor (temperature/humidity/flow/pressure) are digitally displayed on the control panel, and data can be collected and automatically calculated using the accompanying software on a PC (sold separately). The device comes with one standard cooling tower that is transparent, allowing for observation of the internal conditions. Additionally, a wide range of experiments can be conducted using four optional cooling towers available for separate purchase.
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basic information
EC1000V Specifications Dimensions and Weight: Approximately 1016 x 620 x H1180mm, approximately 70kg Power Supply: Single-phase AC100V 20A or AC200V 10A 50/60Hz Water Supply: Distilled water 10L (initial filling amount), approximately 2L/hour (loss amount) Hot Water Circulation System: Maximum flow rate approximately 0.85L.min-1, heating heater (PID control) maximum experimental temperature 60℃, flow adjustment and spray valve, maximum experimental temperature 60℃, flow adjustment and spray valve Air Circulation System: Maximum mass flow rate approximately 0.02kg.s-1, variable speed fan, exhaust louver included Flow Measurement (Digital Display): Water flow sensor, orifice for air flow measurement, water loss measurement container Temperature Measurement (Digital Display): Water temperature x2 locations (cooling tower inlet and outlet), air temperature x3 locations (cooling tower inlet and outlet, orifice inlet) Humidity Measurement (Digital Display): Relative humidity x2 locations (cooling tower inlet and outlet) Pressure Measurement (Digital Display): Orifice differential pressure, differential pressure inside the cooling tower Protection Circuit: Thermal switch (rated 68℃)
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Applications/Examples of results
Main Experimental Items (Attached Cooling Tower, Optional Cooling Towers A/B/C) Experiment 1: The effect of changes in water flow or air flow on heat transfer (W), cooling tower efficiency (%), and pressure inside the cooling tower. Experiment 2: Comparison of dry bulb temperature changes due to changes in water flow or air flow using the psychrometric chart. Experiment 3: The effect of changes in water temperature on heat transfer (W) and cooling tower efficiency (%). Experiment 4: Comparison of dry bulb temperature changes due to changes in water temperature using the psychrometric chart. Experiment 5: Comparison of calculated water loss values and actual measured values. Experiment 6: Characteristics of the packing layer inside the cooling tower (optional cooling tower D only).
Detailed information
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Custom calculation formula input and layout changes are possible. VDAS software screen (accessory).
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VDAS software moist air psychrometric chart screen (accessory)
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Device Configuration Reference Diagram
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Cooling Tower Head Reference Diagram
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Company information
Megakemu designs, manufactures, and imports various experimental and practical equipment for universities, junior colleges, technical colleges, high schools, and vocational schools across the country. While the world has made advancements in various fields, it seems that our Earth's environment is being disrupted by ourselves and is approaching its limits. The world is seeking new Japanese technologies that coexist with the Earth's environment.