Your roadmap · आपका रोडमैप
- 1
Admission & first meetingप्रवेश और पहली मुलाकातEnquire at your nearest NDSS centre, meet the teacher, fix the batch time and get your study material.
- 2
Part 1 of the syllabusपाठ्यक्रम भाग 1Unit-wise coaching with notes and doubt classes.
Refrigeration Basics and Air RefrigerationVapour Compression RefrigerationVapour Absorption and Other Systems
- 3
Part 2 of the syllabusपाठ्यक्रम भाग 2Unit-wise coaching with notes and doubt classes.
Refrigerants and ComponentsPsychrometryAir Conditioning Systems
- 4
Unit tests & assignmentsयूनिट टेस्टRegular tests in the university / board pattern.
- 5
Semester 6 exam (university / board)विश्वविद्यालय / बोर्ड परीक्षाPrevious papers and full revision before the exam.
- 6
Online tests & resultऑनलाइन टेस्ट और रिज़ल्टTake the tests online; your marks and result show in your student login and at the centre.
सिलेबस · पाठ्यक्रम
1 subject · 6 chapters · 28 topics
01Refrigeration Basics and Air Refrigeration
4 टॉपिक+
- Unit of refrigeration and COP
- Reversed Carnot cycle
- Bell-Coleman (reversed Brayton) cycle
- Aircraft refrigeration systems
02Vapour Compression Refrigeration
5 टॉपिक+
- Simple VCR cycle on T-s and p-h charts
- Effect of subcooling and superheating
- Effect of evaporator and condenser pressures
- Actual cycle
- Multi-stage and multi-evaporator systems
03Vapour Absorption and Other Systems
4 टॉपिक+
- Ammonia-water absorption system
- Lithium bromide-water system
- Electrolux refrigerator
- Steam jet and thermoelectric refrigeration
04Refrigerants and Components
5 टॉपिक+
- Designation and properties of refrigerants
- ODP, GWP and eco-friendly refrigerants
- Compressors
- Condensers and evaporators
- Expansion devices
05Psychrometry
5 टॉपिक+
- Psychrometric properties
- Psychrometric chart
- Sensible heating and cooling
- Humidification and dehumidification
- Adiabatic mixing and evaporative cooling
06Air Conditioning Systems
5 टॉपिक+
- Human comfort and comfort chart
- Bypass factor, SHF, RSHF and ESHF
- Cooling load estimation
- Summer, winter and year-round AC systems
- Duct design basics
About this course
आप यह कर पाएँगे
- Find COP of reversed Carnot and air refrigeration cycles
- Analyse simple and modified vapour compression cycles on the p-h chart
- Explain vapour absorption, steam jet and other refrigeration systems
- Select refrigerants considering ODP and GWP, and explain system components
- Use the psychrometric chart for air-conditioning processes
- Estimate cooling load and design simple air-conditioning systems
यह किसके लिए है
- B.Tech Mechanical Engineering students of Semester 6 (AKTU)
- Students of other universities studying the same subject who want unit-wise coaching
आपको क्या चाहिए
- Engineering and Applied Thermodynamics
- Use of refrigerant tables and psychrometric chart
Online tests & result
Practice and unit tests online; marks and result show in your student login and at the centre.
Student login →
सवाल
Which syllabus does the Refrigeration and Air Conditioning course follow?
It follows the AKTU (Dr. A.P.J. Abdul Kalam Technical University, Lucknow) B.Tech syllabus for Refrigeration and Air Conditioning. If your own university's syllabus differs, the centre follows your university syllabus.
Will this help in the university examination?
Yes. Teaching is unit-wise as per the AKTU scheme, with numericals, previous-year question practice, MCQ tests and doubt sessions before the semester exam.
Are refrigerant tables and the psychrometric chart allowed in the exam?
Usually yes in AKTU; we practise every numerical with the p-h chart, refrigerant tables and psychrometric chart.
