Archive for category Electrical Engineering

Case study of a Laundry | Advanced Services

Services in a Laundry – Fabrik Care Laundry, Rasoolpura, Begumpet

The Laundry caters to various hotels, hospitals etc. It is located at Rasoolpura, Begumpet, Hyderabad. The article discusses different services in a laundry namely water supply, drainage, electricity, fire safety and return air ducts.

The total area of the Laundry is 10,000sqft.

Total number of machines in the Laundry = 20

Total number of workers working in the Laundry = 80

laundry

Laundry

Types of Machines in the Laundry

Dry Cleaning Machines = 2 (Clothes upto 40kg can be washed in one go. The cycle of the machine is of around 30 to 40 minutes).

Wet Washing Machines = 2 (60 pieces can be washed at a time. The maximum capacity machine available in the laundry can take upto 80 pieces at a time).

Steam pressing Machines = 3 (Steam pressing is used for delicate cloth like siffon, silk etc)

Hothead pressing Machines = 5 (used for materials such as Cotton, starched clothes etc)

Dryers = 4

Collar Cuff Pressing Machine = 1

Trouser topper = 1

Puff Machine = 1 (wool, silk etc)

Saree Pressing machine = 1


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Window Air conditioners and Split Air conditioners | Electrical Engineering

Window Air conditioners and Split Air conditioners | Working and their Application

In this article, we will discuss “Window Air conditioners” in general. We are quite familiar with room air conditioners. As the name itself suggests, these air conditioners are mounted in the windows and hence the name.

Window Air conditioners comprise of the following parts:

  1. The compressor
  2. The condenser fan
  3. Condenser and evaporator

These components are all enclosed in a single cabinet. This unit is then installed in a window frame or a hole that specially casted during the construction for the purpose of installing Window air conditioners.

While we design the location and installation of Window air conditioners, we need to keep in mind a few important things that would affect the functioning of the window air conditioner. The air being blown through the condenser must pass freely through without restriction. We must therefore make sure that the condenser is not obstructed (for example by a neighboring wall).

Capacities of air conditioners

They come in cooling capacities from 0.5 to 2 tons in various tonnages, adequate for a room between 5 and 20 square meters in size. Larger spaces may be handled by using multiple units of this type.

Window air conditioners are easy to install and convenient to use and economical in cost, they could be noisy for some applications.

Probably the single biggest reason for inefficiency in Window ACs is a dirty filter. Usually most of us don’t pay attention to the maintenance of Window ACs which are accompanied by cleaning the AC filters to keep up the performance of the Window Air conditioners. Even if covered by maintenance contracts, dust is such a severe problem in most areas that the filter needs cleaning even between preventive maintenance visits by your supplier.


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Types of Air conditioning Systems | Electrical Engineering

Study of types of air conditioning Systems in Engineering

Studying different types of air conditioning systems is a part of Engineering. It helps us understanding the working and functioning of HVAC systems. For designing HVAC systems in an Auditorium or a Mall, the engineer has to be aware of various types of air conditioning systems along with its advantages and disadvantages.

Today, various types of air conditioning systems are available in the market. They can be broadly classified as follows:

  1. Central air conditioning systems
  2. Non central air conditioning systems

Central AC Systems are further subdivided into two categories:

  1. Ductable Packaged Air-conditioners
  2. Central Plants

Non-Central AC products are further classified as:

  1. Window ACs
  2. Split ACs

In this article, we will discuss the basic terminology of what are Central AC systems and Non-central AC products.


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