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Energy Audit for AHU

Check our new presentation on energy audit for AHU, illustrating money saving and power saving for one of our client.

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Energy Audit for AHU

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  1. MGCS-Energy Audit Company Check us at http://www.mgcs.net.in/hvac_energy_audit.php

  2. CASE STUDY : AHU ( Air Handling Unit) Check us at http://www.mgcs.net.in/hvac_energy_audit.php

  3. Technical Specifications of AHU: • Double skinned type AHU with PUF (25 mm thick) are provided with EFF1 level motors. • Blower with paddle blade impeller are provided. • The belts are V-Belt. Chilled water coil of copper tube with finned aluminum fins provided. • Chiller coils with 6 rows with 12 fins per inch spacing provided. • The fan is so designed with outlet velocity restriction upto maximum 10 m/sec. 50mm thick air filter with 3 ply HDPE with 2 layers of aluminum provided. • The ducts are of galvanized sheet with suitable insulation and support. Check us at http://www.mgcs.net.in/hvac_energy_audit.php

  4. Location Details: • There are 12 nos of Air handling unit in the premises. • Motors are operated through Star-Delta and DOL starter. • There is no controlling of chilling water or other sensor to control AHU. Check us at http://www.mgcs.net.in/hvac_energy_audit.php

  5. Schematic Layout of AHU Schematic Diagram of AHU Check us at http://www.mgcs.net.in/hvac_energy_audit.php

  6. Performance of AHU Check us at http://www.mgcs.net.in/hvac_energy_audit.php

  7. TECHNICAL EVALUATION • From Above Table, 5 out 9 AHU Specific energy consumption kW/TR is higher than design. • RPM of fan also has been derived through formula as it connected through V-Belt. • Through static pressure it can conclude there is no obstacles in return air path, G-5 & G-6 considerably on higher side. • Disadvantage of V-Belt: • There is a power transmission loss of about 5-7%, when V-Belts “WEDGE IN” and “WEDGE OUT” of the grooved pulley. • Advantage of running in Flat Belt: • Prevents elongation due to moisture absorption. • Ensure Better Grip of Pulley. • Energy Saving of at least 5-7%. Check us at http://www.mgcs.net.in/hvac_energy_audit.php

  8. Energy Saving Recommendation: Conversion of V-Belt to Flat belt in all AHU’s between Motor and Fan. Result of the outcome: Energy saving of at least by 5-7% Check us at http://www.mgcs.net.in/hvac_energy_audit.php

  9. Energy Saving Calculations Total Consumption in AHU = 63.05 KW Energy Saving @ 7% = 4.413 kW Energy saving per annum = 4.413 X 10 X 240 ( 10 hours ,240 days of working) = 10592.4 kWh Monetary Saving = Rs 1.18,105.2/- Investment = 50,000/- Payback = 5 Months Annual GHG Mitigation 8.78 ton of CO2 Check us at http://www.mgcs.net.in/hvac_energy_audit.php

  10. Energy Conservation-need of the hour Contact us now & save on Energy & Money Write us at hina.gupta@mgcs.net.in for any query L -011-49040941/42/43 Check us at http://www.mgcs.net.in/hvac_energy_audit.php

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