gyok
07-07-2006, 02:56 AM
Dear Sir,
Please guide how to calculate the permanent precise air conditioning, air-cooled type total cooling 19.1KW, the sensible cooling 18.2KW, the CRAC sensible heat up to 80%- 90%, that is to say have 90% efficiency is it lower the temperature effectively for the equipment to use for, only about 10% of energy consumption is used in dehumidifying appropriately.
The design of the CRAC of the computer centre is high airflow, little enthalpy, it is design in 13- 15¡æ that supply air temperature.
That one SQ M nearly needs 450 Kcal/h with the ability of air conditioning BTU, consider the surrounding environment equipment and send out heat, for instance: Lighting, by the near oblique windows, two or three attendants, etc. have increased 20% of the heat load, reserve 3% + can be operate in about more than large computer centre of area of level ground while expanding the capacity of the computer equipment in the future.
Note could be detailed to is it calculate way and every step course to list. The impracticable high clearance of raised floor is 350mm, the airflow selects ESP 90Pa for use down-flow unit, the floor to floor is to high 2200mm height.
Airflow loss and is less than 5%.
Please explain.
Regards,
Gary
Please guide how to calculate the permanent precise air conditioning, air-cooled type total cooling 19.1KW, the sensible cooling 18.2KW, the CRAC sensible heat up to 80%- 90%, that is to say have 90% efficiency is it lower the temperature effectively for the equipment to use for, only about 10% of energy consumption is used in dehumidifying appropriately.
The design of the CRAC of the computer centre is high airflow, little enthalpy, it is design in 13- 15¡æ that supply air temperature.
That one SQ M nearly needs 450 Kcal/h with the ability of air conditioning BTU, consider the surrounding environment equipment and send out heat, for instance: Lighting, by the near oblique windows, two or three attendants, etc. have increased 20% of the heat load, reserve 3% + can be operate in about more than large computer centre of area of level ground while expanding the capacity of the computer equipment in the future.
Note could be detailed to is it calculate way and every step course to list. The impracticable high clearance of raised floor is 350mm, the airflow selects ESP 90Pa for use down-flow unit, the floor to floor is to high 2200mm height.
Airflow loss and is less than 5%.
Please explain.
Regards,
Gary