Retrofit

CALCULATORS

Retroftting Initiatives - Energy Saving Calculators

Please find below online calcuators for estimation of energy saving to be achieved through the retrofitting initiatives.

Replacement of more efficient chiller
Conversion of air-cooled to water-cooled chiller plant
Conversion to variable speed cooling tower fan
Installation of auto-cleaning devices for condensers of water-cooled chillers / Installation of electromagnetic clamp-on / ultrasonic devices for condensing water system
Conversion to variable speed chilled water pump / Conversion to primary variable flow system / De-centralised chilled water distribution system with zone in-line pump
Supply and return chilled water temperature differential control with zone control valve
De-centralised chilled water distribution system for equipment with different chilled water operation requirements
Replacement of traditional 3-speed FCU to variable speed FCU with permanent magnet motor
Conversion of constant-air-volume (CAV) to variable-air-volume (VAV) system / Conversion to demand fresh air control system coupling with exhaust air system / Using electronically commutated (EC) plug fan in AHU / PAU / CRAC
Conversion of VAV system to sensible space cooling with dedicated outdoor air system (DOAS) / Conversion to radiant cooling technologies (e.g. chilled beam / chilled ceiling) with dedicated air handling system (DAHS) / Using high volume low pressure (HVLP) ceiling fan for ventilated cooling
Installation of indirect evaporative cooling System (IEC) for pre-cooling of primary fresh air with exhaust air
Using spot cooling for local air-conditioning zone
Using lower pressure drop air filters with new technologies and features that can improve filter efficiency
Enlargement of fresh air inlet and ductwork for free cooling application with low ambient temperature and relative humidity
Replacement of electric/gas heater/boiler to heat pump
Installation of occupancy/motion sensor for on/off/dimming control of lighting / Adoption of task lighting to lower the background lighting
Use of smart lighting control platform