Cooling Tower Operations SOP

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Questions and Answers

What is the required action to maintain the water level in the cooling tower?

Monitor the water level once a day.

Add more water only when chemical treatment is applied.

Maintain the water level below the mechanical float level.

Monitor the water level once an hour. (correct)

How often should chemicals be added to the cooling tower water?

Only when water is blown down.

On a monthly basis for optimal performance.

Only weekly, as specified by the supplier.

Daily and weekly, as specified by the supplier. (correct)

What does the phrase 'blown down' refer to in the cooling tower operation?

Adding chemicals to the water.

Discharging water to maintain quality. (correct)

Monitoring the water levels.

Filling the tower with fresh water.

What is the pH level that must be maintained in the cooling tower water?

8.1 Signup and view all the answers

Which document section outlines the parameters for chemical dosing in the cooling tower?

Section 2.7 Signup and view all the answers

What is the primary responsibility of the Utility Operator in the SOP for the Cooling Tower?

Operation of Cooling tower as per the SOP Signup and view all the answers

Which of the following precautions should be taken to prevent electrical shock during maintenance?

Ensure Equipment power supply is isolated Signup and view all the answers

What consequence might occur due to high temperatures during maintenance in the compressor discharge line?

Hot burn Signup and view all the answers

Which type of maintenance is specifically noted in the responsibilities outlined in the SOP?

Preventive Maintenance Signup and view all the answers

How can slippery floors due to oil spillage be managed according to the SOP?

Ensure good housekeeping and immediate cleanup Signup and view all the answers

What does the abbreviation 'PPE' stand for in the context of the SOP?

Personal Protective Equipment Signup and view all the answers

Which of the following is NOT listed as a hazard in the SOP?

Chemical exposure Signup and view all the answers

What is the expected outcome if the necessary precautions regarding high temperature are not taken during maintenance?

Risk of hot burns Signup and view all the answers

What is the first step to take before performing maintenance work on the cooling tower?

Allow some time to cool down Signup and view all the answers

Which personal protective equipment is specifically recommended for low temperature maintenance work?

Cryogenic gloves and goggles Signup and view all the answers

What should be checked to ensure safety before maintenance activity on the compressor suction line?

Valves are completely isolated with no passing Signup and view all the answers

Which feature of PPE is NOT mentioned as required for maintenance work?

High visibility vest Signup and view all the answers

Before starting the cooling tower pump, what should be ensured?

The make-up water line to the sump is open Signup and view all the answers

What is one of the risks associated with high pressure refrigerant gas during maintenance?

Serious eye and body injuries Signup and view all the answers

What action should be taken prior to starting the cooling tower fan?

Check that the inlet and outlet valves are open Signup and view all the answers

Which of the following is NOT part of the required PPE when performing maintenance?

Rubber boots Signup and view all the answers

Study Notes

Operation of Cooling Tower

Purpose: This Standard Operating Procedure (SOP) outlines the process for operating cooling towers.
Scope: The SOP applies to all types of cooling towers within the Fresh Division.
Responsibility:
- Utility Operator: Responsible for operating cooling towers according to the SOP.
- Engineering Manager: Accountable for the operation of cooling towers.
Abbreviations:
- PPE: Personal Protective Equipment
- PM: Preventive Maintenance
- TDS: Total Dissolved Solids
- TH: Total Hardness

Safety, Health & Environment (SHE) Procedures

Electrical Work:
- Hazard: Potential electrical shock while performing maintenance without proper isolation.
- Precaution: Ensure the equipment's power supply is isolated before starting any maintenance work.
Slippery Surfaces:
- Hazard: Risk of physical injury due to oil spills on the floor during oil replacement.
- Precaution:
  - Ensure no oil is present on the floor.
  - Maintain good housekeeping practices.
  - Clean any spilled oil immediately.
High Temperature:
- Hazard: Potential burns from hot temperatures during maintenance activities in the compressor discharge line.
- Precaution:
  - Ensure complete isolation of valves.
  - Ensure no valve passing before maintenance work.
  - Ensure complete evacuation of refrigerant.
  - Allow time for equipment to cool down before maintenance.
  - Use Kevlar gloves and goggles.
Low Temperature:
- Hazard: Potential cold burns during maintenance activities in the compressor suction line.
- Precaution:
  - Allow time for equipment to warm up before maintenance.
  - Ensure complete isolation of valves.
  - Ensure no valve passing before maintenance work.
  - Ensure complete evacuation of refrigerant.
  - Use cryogenic gloves and goggles.
High Pressure Refrigerant Gas Leakage:
- Hazard: Risk of serious eye and physical injury from refrigerant gas leaks during maintenance work.
- Precaution:
  - Ensure complete isolation of valves.
  - Ensure no valve passing before maintenance work.
  - Ensure complete evacuation of refrigerant.
  - Use cryogenic gloves and goggles.

Personal Protective Equipment (PPE)

Required PPE:
- PVC, Kevlar, and cryogenic gloves
- Cotton gloves impregnated with neoprene
- Helmet with chinstrap
- Safety shoes
- Goggles
- Ear plugs

Operational Procedures

Cooling Tower Water Supply:
- Ensure the make-up water line to the cooling tower sump is open.
Cooling Tower Pump and Fan:
- Ensure the cooling tower recirculation pump inlet & outlet valves are open and operational.
- Start the cooling tower pump and fan using the push buttons on the Motor Control Center (MCC) panel.
Water Level Monitoring:
- Monitor the water level in the cooling tower every hour.
- Maintain the water level above the mechanical float level.
Chemical Treatment:
- Add chemicals to the cooling tower water daily and weekly as specified by the supplier.
- Chemical treatment is essential for maintaining water quality.
Blowdown:
- Periodically blowdown the cooling tower water to maintain appropriate water quality.

Cooling Tower Water Quality Parameters

Parameters:
- pH
Target Values:
- Feed Water: 8.1 (Note: unit is not provided but pH is assumed to be unitless).
- Circulating Water: Not provided in the document.

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Description

This quiz covers the Standard Operating Procedure for the operation of cooling towers, including responsibilities and safety precautions. It highlights key responsibilities for utility operators and engineering managers, as well as safety guidelines related to electrical work and slippery surfaces.