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Article By MG Cooling Solutions In HVAC - July 21, 2020

HVAC for Manufacturing Facilities


HVAC solutions for manufacturing plants: A manufacturing plant, factory or a production plant is an industrial site, usually having lager or several buildings and heavy machinery, where workers manufacture goods or operate machines. Industries and manufacturing plants are very important to strengthen country’s GDP and it is one of the hight growth sectors in India. Modern factories and manufacturing plants nowadays have large warehouses containing heavy equipment used for assembly line production thus generating a large amount of heat. In the hot and humid country like India excessive heat and humidity can become the biggest problem for any manufacturing plant and have negative impacts on its manufacturing and machinery. To overcome this problem HVAC is the solution and we MG Cooling solutions is an HVAC company in India identify and implement the right measures at your facility. Now let’s understand HVAC, it stands for Heating, Ventilation, and Air Conditioning and it is basically designed to achieve the environmental comfort of occupants and a process. The HVAC system is used to provide thermal comfort and better indoor air quality and it is an important part of any manufacturing unit and it also removes contaminated particles, air pollutants of the air and conditions the indoor air either cooling or heating it to provide environmental comfort. HEATING is accomplished by heating the air inside the building using radiators or supply air systems. VENTILATION “V” in HVAC is the process of exchanging air to provide control temperature, oxygen replenishment, removal of moisture, dust, smoke, heat, dust, airborne bacteria, carbon dioxide, and other gases. Ventilation is usually accomplished by mechanical systems powdered by fans and it eliminates odour, excessive moisture, and keeps interior building aeriated and prevents stagnation of the internal air. AIR-CONDITIONING reduces the temperature and maintains appropriate humidity levels using air-cooled or water-cooled systems.

In HVAC system there is a plant room where large compressor, condenser, thermostatic expansion valve and the evaporator are placed in a plant room. They perform all the functions like a typical refrigeration system. In HVAC system compressor compresses refrigerants increasing its pressure and temperature then the condenser blows the outside hot air over the refrigerant vapour to liquefy it. The expansion valve converts refrigerants into a low-pressure liquid thus cooling it. Manufacturing plants totally rely on their machines and manpower thus a good HVAC system is required for its smooth functioning and to prevent deterioration of its machinery, products and to eliminate health hazards among its workers caused by excessive heat and humidity. MG Cooling solutions helps you to work through these challenges thus improving occupant safety, comfort and increased productivity, preservation of the structure and increased energy efficiency. An HVAC system aims to provide an environment in which following factors are maintained within desired range:

  • 75 degrees Fahrenheit
  • 40-60% relative humidity 
  • ASHRAE 62.0 ventilation standard or CO2 less than 1000 PPM

Basic components of a HVAC system to provide desirable thermal comfort and better indoor quality are:

  • Mixed air plenum and outdoor air control       
  • Air filter
  • Supply fan
  • Exhaust or relief fans and an air outlet
  • Outdoor air intake
  • Ducts
  • Terminal devices
  • Return air system
  • Heating and cooling coils
  • Self-contained heating or cooling unit
  • Cooling tower
  • Boiler
  • Control
  • Water chiller
  • Humidification and dehumidification equipment
Schematic diagram of HVAC plant used to control the internal ...

Selection of a suitable HVAC system for a manufacturing plants depends on three main factors including the building configuration, climatic conditions and the owner desire. HVAC system have several requirements including primary equipment such as heating equipment, cooling equipment and delivery equipment; space requirement like HVAC facilities, equipment room and vertical shaft; air distribution; and piping. HVAC system are classified into central HVAC system or local HVAC system depending on the zones types and the location of HVAC equipment. The central HVAC systems can serve multiple or single zones and located away from the facility thus needs distribution devices. The local HVAC systems are mostly placed inside or adjacent to the working spaces and serve one single zone. They comprise of local heating systems, local air-conditioning systems, local ventilation systems, and split system. The HVAC system for manufacturing unit is further divided into three broad categories;

  1. Centralized: it is a single system that supplies the HVAC needs of a building and they typically use water as a cooling medium along with extensive ductwork for air distribution. These HVAC systems are better to control and have greater load-management potential.
  2. Packaged: these HVAC systems are usually used in buildings having less space for all the separate components. It is a one packaged unit having both the heating and air conditioning system. It contains air conditioner/heat pump and the evaporating coil in one unit, thermostat interface to control the entire system, optional air quality improvers.
  3. Individual: these HVAC systems provide heating/cooling using various individual units in various location of the buildings. They are easy to control and have lower investment initially but they are very difficult to maintain

Manufacturing plants are designed according to the products being manufactured and are specific in nature thus a HVAC system must fit into it perfectly providing;

  • High and low temperature depending on the product
  • High or low humidity requirements depending on the products
  • High volume of air changing per hour
  • Large quantities of outdoor air requirement

       All these requirements are specific to specific manufacturing units and provide various challenges and we MG Cooling solutions are working continuously to provide better cooling and ventilation solutions according to the ever-changing needs of your manufacturing unit. The HVAC system has become the required industry standard for construction of new buildings. They consume less energy as compared to the conventional forms and reduce carbon emissions i.e. they are eco-friendly which causes an increase in its demands.

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