Psychometric study and HVAC design and drafting

Psychometric study is a vast science and an integral part of HVAC design and drafting, MEP (mechanical, electrical and Plumbing). Psychometric means study of air properties. In literal sense of Air conditioning, air is the aspect to deal with. This air can be Supply air (SA), Return air (RA), Fresh air (FA) and Extract air(EA). SA and RA contribute to maintaining the temperature of the room as per the human comfort. FA and EA signify to the ventilation part. The outside air i.e. the ambient air varies from city to city and from variant time zone. The inside temperature or the desired temperature is universally considered to be between 21 deg C to 26 deg C; ideally 23 deg C. This indoor temp is universally accepted temperature range which is considered satisfactory for human comfort. Other factors which influence human comfort in HVAC system include the metabolic rate of the individuals, their physical activity, health conditions, clothing, food and drink etc. Generally speaking it is associated with individual metabolism rate which produces heat.

Psychometric analysis does not only signify to the temperature aspect but also to at Relative humidity ie RH and that means % of moisture content in air. For HVAC design and drafting, basically there are five major aspects:

• Dry Bulb Temp
• Wet Bulb Temp
• Dew Point Temp
• Relative Humidity
• Humidity Ratio

The preparation of psychometric table in HVAC design and drafting leads to the Heat Load Calculation which makes sure how much heat in unit of BTU/Hr needs to be dissipated and against that how much cooling in terms of TR needs to be entertained in the desired location. 

A Psychrometric Chart is very important tool for HVAC engineers which helps them to carry out heat load or cooling load calculations. This also helps HVAC design and drafting engineers find solutions to various air condition related problems. The psychrometric chart in overall shape looks like a shoe.

For more, visit at http://www.sofcontraining.com/hvac-design-and-drafting.htm

Vocational training

Current era is of knowledge economy. Talents and skills of employees form the most critical competitive advantage for any company. 15 million job seekers enter into job market each year. On the other side companies do not get sufficiently skilled manpower. Hiring, training the right talent and retaining them with the company is huge cost. So its not possible for every employers to skill & build their talent continuously. 

Now the question arises how would the companies get trained skilled manpower for their jobs? The answer is skill training providers.

We at Sofcon India Pvt LTD has aligned our training programs on Industrial automation, PLC SCADA, Embedded systems AVR Microcontrollers HVAC control, HVAC Design and drafting, VLSI, Building automation, Electronics surveillance, Hydraulics & Pneumatics trainings with industry requirements. Our training programs are also aligned with QPNOS (Qualification pack National occupation standards). QPNOS are set of standards set by NSDC for variety of job roles for different industries.

Where there is high attrition rate, employers are unwilling to pay for training for the candidates. Although they are willing to re-train and pay for already trained candidates. Now it becomes necessary for fresher entering into job-market to acquire the necessary skills mandatory for entry into a job role.

Engineers trained on PLC SCADA systems are given practical experience on hardware & software design. They know about different types of sensors and final control elements. These engineers are suitable for project engineer, design engineer & commissioning engineers job. A week time on job is enough for them to do justice to their assigned job role. Consumption of electronics tabs, mobile, pcs have increased many-fold which has pushed promising technology job opportunities for embedded system engineers, AVR/ARM Microcontroller training, VLSI, System verilog, VHDL trained engineers.

Industry is showing signs of recovery. India is going to be world leader in automotives. Hydraulics training, pneumatics training plays very important role in filling skill gaps of automotive and other industries. We are fastest developing country in the world. Our infrastructure sector is going to have huge growth potential. HVAC control & HVAC Design & drafting are key skills needed for mechanical engineers wanting to enter this segment.

Be it designing of air conditioning system, ducting, load calculation, HVAC control system, Building automation system. Learning of engineer’s undergone practical training is much faster and they can be assigned independent project design, project execution jobs.