• Design and fabrication of a Vapor absorption Refrigeration using solar energy.Nagaraja D Shenoy
The use of solar energy to power refrigeration with replacing the compression cycle with vapor absorption cycle strives to minimize the negative impacts refrigerators have on the environment and energy. Replacing the electrical energy with solar energy will reduce the consumption of high grade electrical energy. Ammonia being an environmentally friendly gas reduces the effect of ozone layer depletion and global warming by artificial refrigerants. This project deals with a model solar thermal refrigeration system using NH3-H2O vapor absorption system
Solar Or Waste Heat Absorption Cooling System
DRAMATIC INCREASE OF AIR CONDITIONING SINCE THE EARLY 80’S
• COST OF ENERGY
• ISSUES RELATED TO ENVIRONMENTAL POLLUTION
DUE TO ENERGY PRODUCTION
DUE TO THE USE OF CFC’S AND HCFC’S
• MATCHES DEMAND WITH SOURCE AVAILABILITY
• CRUCIAL FOR IMPROVING LIFE STANDARDS IN DEVELOPING COUNTRIES
SOLAR POWER VAPOUR ABSORPTION REFRIGERATION SYSTEMaj12345ay
USE OF SOLAR POWER IN REFRIGERATION SYSTEM
The power incident from the sun to the earth has very much amount of energy that the present consumption rate of all the commercial and general uses. We utilize only 0.1% of total incident sun energy on the surface of earth. Thus solar energy can fulfill our present as well as future needs of energy. That is a reason it called renewable sources of energy. It is also environmental clean source of energy and available at whole part of world where people live. Using of solar energy in the field of refrigeration and air conditioning system it become very economical.
In our project we provide solar heat in generator for heating purpose of vapor compression refrigeration system.
For past few decades, energy has played a prominent role in the development of technology and economy. Energy has now become inevitable factor for production as well. The objective of this project is to develop an environment friendly vapour absorption system. Vapour absorption system uses heat energy, instead of mechanical energy as in vapour compression system, in order to change the condition of refrigerant required for the operation of the cycle. R 717(NH3) and water are used as working fluids in this system. The basic idea of this project is derived from the solar heating panel to obtain heat energy, instead of using any conventional source of heat energy. In this project various observations are done by varying operating conditions related to heat source, condenser, absorber and evaporator temperatures. The drawback of this system is that, it remains idle in the cloudy weather conditions.
COMPONENTS USED IN SOLAR POWERED AQUA-AMMONIA VAPOUR ABSORPTION SYSTEM
• ABSORBER
• PUMP
• HEAT EXCHANGER
• GENERATOR
• SOLAR PANEL
• CONDENSER
• EXPANSION VALVE
• EVAPORATOR
• DC BATTERY
• FAN
Process of converting solar thermal energy (heat) into conditioned air.
Eco-friendly as well as Energy-efficient.
Can be operated with green resources of heat as backup resources when solar radiation is unavailable
“SEMINAR REPORT ON SOLAR ASSISTED VAPOUR ADSORPTION REFRIGERATION SYSTEM”Bhagvat Wadekar
SUMMARY
The range of COP for the Solar VAdRS is 0.2 - 0.7. The development of adsorption system for refrigeration is promising. An overall thermodynamics-based comparison of sorption systems shows that the performance of adsorption systems depends highly on both the adsorption pairs and processes. The technology continues to develop and the cost of producing power with solar thermal adsorption refrigeration is falling. If the costs of fossil fuels, transportation, energy conversion, electricity transmission and system maintenance are taken into account, the cost of energy produced by solar thermal adsorption systems would be much lower than that for conventional refrigeration systems.
The intermittent system has its simplicity and cost effectiveness. However, the main disadvantages such as long adsorption/desorption time have become obstacles for commercial production of the system. Hence, to compete with conventional vapor compression technologies, more efforts should be made in enhancing the COP and SCP. The environmental benefits of this technology and its non-dependence on conventional energy sources makes it highly attractive for further developments and a potential alternative to conventional systems in the future. The future of solar refrigeration and air conditioning seems to be a very good proposition and no doubt will find its place in future industrial applications. The major limiting factor at present is the shape of energy so as to make it available whenever it is required, for example at nights and extended cloudy days when we cannot attain a high enough temperature.
Design and Fabrication of Vapour Absorption Refrigeration System [Libr-H20]IJMER
Most of the energies are utilized by the industries due to depletion of fossil fuels and
increasing the fuel price to exploit the maximum presented energy from the waste heat source. The
industry which utilizes steam turbine exhaust carries a considerable amount of thermal energy. This
energy can be set in to positive use as a heat source for vapour absorption system to serves as cooling
system. This paper illustrates the thermal and fiscal advantages of using single effect lithium bromide
water absorption by means of waste heat. The objective of this work is to hypothetical design of lithium
bromide water absorption Refrigeration system using waste heat from any industry steam turbine
exhaust
Presentation on Heat pump and its Function.Monjur Ayon
The discussion are also include about heat pump with its different function,type of heat pump,working procedure,application of heat pump,main component of heat pump.
EXPERIMENTAL ANALYSIS OF ZEOLITE BASE SOLAR VAPOUR ADSORPTION REFRIGERATION S...Journal For Research
Solar adsorption refrigeration represents important criteria of solar energy due to excellent matching between high sun-shine and the refrigeration need. The refrigerant pair can be taken by zeolite in powder form and water as refrigerant. The experiment used different parameters like co-efficient performance, temperature different, solar collector design, cooling unit, mass flow rate, pressure difference etc. Several literatures are used to develop experimental analysis to prepare an experimental setup and their results validation. Analysis new style structure adsorbent bed had been designed ,which has some character follows: compact structure, good performance in bearing strength, high efficiency in heat & mass transfer, great packing amount of adsorbent & uniform temperature field in the bed.
Generation of Air Conditioning by using Exhaust Gases and Cooling Water of an...ijtsrd
Air conditioning system of car or buses works on principle of vapor absorption cycle of refrigeration VAR . This system reduces the fuel economy of fuel of vehicle. When vehicle moving with air conditioning, it consumes more amount of fuel than vehicle rubs without AC, typically, it consumes 15 to 20 more amount of fuel. Exhaust gases coming from engine of vehicle have temperature ranges to 300 to 400 degree centigrade at full load it carries 25 to 30 of heat supplied by fuel. For A.C. of an automobile, the heat of exhaust gases is utilized to run vapor absorption refrigeration cycle instead of vapour compression refrigeration system. Resulting, it improves fuel economy of A. C. heavy vehicle. In this project try to integrate the vapor absorption refrigeration system with car or bus or heavy vehicle engine exhaust. Comparative study has been carried out when car running with VCR and vapor absorption system of refrigeration. Dr. M. Sampath Kumar | Karthik Payam | Rajesh Medi | Srikanth Chennam | Aditya Mothukuri ""Generation of Air Conditioning by using Exhaust Gases and Cooling Water of an Automobile Engine"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23318.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23318/generation-of-air-conditioning-by-using-exhaust-gases-and-cooling-water-of-an-automobile-engine/dr-m-sampath-kumar
• Design and fabrication of a Vapor absorption Refrigeration using solar energy.Nagaraja D Shenoy
The use of solar energy to power refrigeration with replacing the compression cycle with vapor absorption cycle strives to minimize the negative impacts refrigerators have on the environment and energy. Replacing the electrical energy with solar energy will reduce the consumption of high grade electrical energy. Ammonia being an environmentally friendly gas reduces the effect of ozone layer depletion and global warming by artificial refrigerants. This project deals with a model solar thermal refrigeration system using NH3-H2O vapor absorption system
Solar Or Waste Heat Absorption Cooling System
DRAMATIC INCREASE OF AIR CONDITIONING SINCE THE EARLY 80’S
• COST OF ENERGY
• ISSUES RELATED TO ENVIRONMENTAL POLLUTION
DUE TO ENERGY PRODUCTION
DUE TO THE USE OF CFC’S AND HCFC’S
• MATCHES DEMAND WITH SOURCE AVAILABILITY
• CRUCIAL FOR IMPROVING LIFE STANDARDS IN DEVELOPING COUNTRIES
SOLAR POWER VAPOUR ABSORPTION REFRIGERATION SYSTEMaj12345ay
USE OF SOLAR POWER IN REFRIGERATION SYSTEM
The power incident from the sun to the earth has very much amount of energy that the present consumption rate of all the commercial and general uses. We utilize only 0.1% of total incident sun energy on the surface of earth. Thus solar energy can fulfill our present as well as future needs of energy. That is a reason it called renewable sources of energy. It is also environmental clean source of energy and available at whole part of world where people live. Using of solar energy in the field of refrigeration and air conditioning system it become very economical.
In our project we provide solar heat in generator for heating purpose of vapor compression refrigeration system.
For past few decades, energy has played a prominent role in the development of technology and economy. Energy has now become inevitable factor for production as well. The objective of this project is to develop an environment friendly vapour absorption system. Vapour absorption system uses heat energy, instead of mechanical energy as in vapour compression system, in order to change the condition of refrigerant required for the operation of the cycle. R 717(NH3) and water are used as working fluids in this system. The basic idea of this project is derived from the solar heating panel to obtain heat energy, instead of using any conventional source of heat energy. In this project various observations are done by varying operating conditions related to heat source, condenser, absorber and evaporator temperatures. The drawback of this system is that, it remains idle in the cloudy weather conditions.
COMPONENTS USED IN SOLAR POWERED AQUA-AMMONIA VAPOUR ABSORPTION SYSTEM
• ABSORBER
• PUMP
• HEAT EXCHANGER
• GENERATOR
• SOLAR PANEL
• CONDENSER
• EXPANSION VALVE
• EVAPORATOR
• DC BATTERY
• FAN
Process of converting solar thermal energy (heat) into conditioned air.
Eco-friendly as well as Energy-efficient.
Can be operated with green resources of heat as backup resources when solar radiation is unavailable
“SEMINAR REPORT ON SOLAR ASSISTED VAPOUR ADSORPTION REFRIGERATION SYSTEM”Bhagvat Wadekar
SUMMARY
The range of COP for the Solar VAdRS is 0.2 - 0.7. The development of adsorption system for refrigeration is promising. An overall thermodynamics-based comparison of sorption systems shows that the performance of adsorption systems depends highly on both the adsorption pairs and processes. The technology continues to develop and the cost of producing power with solar thermal adsorption refrigeration is falling. If the costs of fossil fuels, transportation, energy conversion, electricity transmission and system maintenance are taken into account, the cost of energy produced by solar thermal adsorption systems would be much lower than that for conventional refrigeration systems.
The intermittent system has its simplicity and cost effectiveness. However, the main disadvantages such as long adsorption/desorption time have become obstacles for commercial production of the system. Hence, to compete with conventional vapor compression technologies, more efforts should be made in enhancing the COP and SCP. The environmental benefits of this technology and its non-dependence on conventional energy sources makes it highly attractive for further developments and a potential alternative to conventional systems in the future. The future of solar refrigeration and air conditioning seems to be a very good proposition and no doubt will find its place in future industrial applications. The major limiting factor at present is the shape of energy so as to make it available whenever it is required, for example at nights and extended cloudy days when we cannot attain a high enough temperature.
Design and Fabrication of Vapour Absorption Refrigeration System [Libr-H20]IJMER
Most of the energies are utilized by the industries due to depletion of fossil fuels and
increasing the fuel price to exploit the maximum presented energy from the waste heat source. The
industry which utilizes steam turbine exhaust carries a considerable amount of thermal energy. This
energy can be set in to positive use as a heat source for vapour absorption system to serves as cooling
system. This paper illustrates the thermal and fiscal advantages of using single effect lithium bromide
water absorption by means of waste heat. The objective of this work is to hypothetical design of lithium
bromide water absorption Refrigeration system using waste heat from any industry steam turbine
exhaust
Presentation on Heat pump and its Function.Monjur Ayon
The discussion are also include about heat pump with its different function,type of heat pump,working procedure,application of heat pump,main component of heat pump.
EXPERIMENTAL ANALYSIS OF ZEOLITE BASE SOLAR VAPOUR ADSORPTION REFRIGERATION S...Journal For Research
Solar adsorption refrigeration represents important criteria of solar energy due to excellent matching between high sun-shine and the refrigeration need. The refrigerant pair can be taken by zeolite in powder form and water as refrigerant. The experiment used different parameters like co-efficient performance, temperature different, solar collector design, cooling unit, mass flow rate, pressure difference etc. Several literatures are used to develop experimental analysis to prepare an experimental setup and their results validation. Analysis new style structure adsorbent bed had been designed ,which has some character follows: compact structure, good performance in bearing strength, high efficiency in heat & mass transfer, great packing amount of adsorbent & uniform temperature field in the bed.
Generation of Air Conditioning by using Exhaust Gases and Cooling Water of an...ijtsrd
Air conditioning system of car or buses works on principle of vapor absorption cycle of refrigeration VAR . This system reduces the fuel economy of fuel of vehicle. When vehicle moving with air conditioning, it consumes more amount of fuel than vehicle rubs without AC, typically, it consumes 15 to 20 more amount of fuel. Exhaust gases coming from engine of vehicle have temperature ranges to 300 to 400 degree centigrade at full load it carries 25 to 30 of heat supplied by fuel. For A.C. of an automobile, the heat of exhaust gases is utilized to run vapor absorption refrigeration cycle instead of vapour compression refrigeration system. Resulting, it improves fuel economy of A. C. heavy vehicle. In this project try to integrate the vapor absorption refrigeration system with car or bus or heavy vehicle engine exhaust. Comparative study has been carried out when car running with VCR and vapor absorption system of refrigeration. Dr. M. Sampath Kumar | Karthik Payam | Rajesh Medi | Srikanth Chennam | Aditya Mothukuri ""Generation of Air Conditioning by using Exhaust Gases and Cooling Water of an Automobile Engine"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23318.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23318/generation-of-air-conditioning-by-using-exhaust-gases-and-cooling-water-of-an-automobile-engine/dr-m-sampath-kumar
It is possible to consider that adsorption systems can be alternative to reduce the CO2 emissions and electricity demand when they driven by waste heat or solar energy. Although, for a broader utilization the researches should continue aiming for improvements in heat transfer,reductions of new adsorbent compounds with enhanced adsorption capacity and improved heat and mass transfer properties.
Fabrication, Designing & Performance Analysis of Solar Parabolic TroughIJERA Editor
A parabolic trough solar collector uses a parabolic cylinder to reflect and concentrate sun radiations towards a receiver tube located at the focus line of the parabolic cylinder. The receiver absorbs the incoming radiations and transforms them into thermal energy, the latter being transported and collected by a fluid medium circulating within the receiver tube.This method of concentrated solar collection has the advantage of high efficiency and low cost, and can be used either for thermal energy collection, for generating electricity or for both, This paper focused on the fabrication and designing of solar parabolic trough, The designing of trough is depend upon the following parameters : Aperture of the concentrator , Inner diameter of absorber tube, Outer diameter of absorber tube, Inner diameter of glass tube, Outer diameter of glass tube, Length of parabolic trough, Concentration ratio, Collector aperture area, Specular reflectivity of concentrator, Glass cover transitivity for solar radiation, Absorber tube emissivity/emissivity, Intercept factor, Emissivity of absorber tube surface and Emissivity of glass. The performance analysis will be based on the Experimental data collection and calculations with reference to: Thermal performance calculations, Overall loss coefficient and heat correlations. Heat transfer coefficient on the inside surface of the absorber tube and Heat transfer coefficient between the absorber tube and the Cover.
Thermal System - Monolithic Microscale Heat PumpsSuraj Naik
In the present work, a versatile, modular, scalable design for miniaturized heat pumps was developed,
The researchers have also adapted the technology to provide cooling using waste heat from diesel-driven generators at military bases.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Hello everyone! I am thrilled to present my latest portfolio on LinkedIn, marking the culmination of my architectural journey thus far. Over the span of five years, I've been fortunate to acquire a wealth of knowledge under the guidance of esteemed professors and industry mentors. From rigorous academic pursuits to practical engagements, each experience has contributed to my growth and refinement as an architecture student. This portfolio not only showcases my projects but also underscores my attention to detail and to innovative architecture as a profession.
Dive into the innovative world of smart garages with our insightful presentation, "Exploring the Future of Smart Garages." This comprehensive guide covers the latest advancements in garage technology, including automated systems, smart security features, energy efficiency solutions, and seamless integration with smart home ecosystems. Learn how these technologies are transforming traditional garages into high-tech, efficient spaces that enhance convenience, safety, and sustainability.
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You could be a professional graphic designer and still make mistakes. There is always the possibility of human error. On the other hand if you’re not a designer, the chances of making some common graphic design mistakes are even higher. Because you don’t know what you don’t know. That’s where this blog comes in. To make your job easier and help you create better designs, we have put together a list of common graphic design mistakes that you need to avoid.
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Quality control is vital to every industry. This is why every department in a company need create a method they use in ensuring quality. This, perhaps, will not only improve the quality of products and bring errors to the barest minimum, but take it to a near perfect finish.
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So, this presentation points designers to some important things that may be missed by an editor that they could eventually discover and call the attention of the editor.
White wonder, Work developed by Eva TschoppMansi Shah
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3. A solar heat operated system.
Quite similar to vapour compression system.
Compressor is replaced by pump,generator and absorber.
Ammonia is used as refrigerant i.e R-717.
Heat in generator is supplied by solar electrical power
stored in battery
Condensation,expansion and evaporation are same as VCR
SYSTEM.
4. To make effective refrigeration making use of solar energy.
One time investment with minimum running expense.
Pollution free system.
Refrigeration system having low maintenance cost.
6. Used to store the mixture of water and ammonia in
particular proportion.
Function is to produce the aqua ammonia solution.
Low pressure of ammonia NH3 vapour is absorb by weak
solution of ammonia NH3 which is stored in absorber
7. Heats the strong aqua solution up to boiling temperature of
ammonia solution to produce ammonia vapours.
Here ,solar panel is used for heating purpose.
Separates the dissolved ammonia from water –ammonia
solution.
8. A device or unit to used condense a solution from its
gaseous to its liquid state.
Application areas include air conditioning ,industrial
chemical processes such as steam power plant
9. Controls amount of refrigerant flow into the evaporator.
Cause a pressure drop of the working fluid.
Causes sudden drop in temperature.
Type of expansion valves used capillary type expansion
valve.
10. Absorbtion of heat from surrounding.
Heat transfer is done by forced convection or natural
convection.
Application areas:food and beverages industry
,phamaceutical industry.
11. The electricity for heating coil is obtained from solar panel.
The solar panel used in the project is of 60W and 4A.
Usually made up of p-n silicon semiconductor aluminium or
fibre glass. Fibre glass is widely use.
12.
13. Ammonia solution is pumped to generator with help of
pump
Ammonia solution is heated to a temperature suitable for
separating ammonia vapor from ammonia solution.
Ammonia vapors condenses in condenser.
Liquid ammonia from condenser expand through
expansion valve.
Chilled ammonia causes cooling effect in the evaporator.
Finally ammonia is transferred to absorber and the process
continues.
14. SOLAR SYSTEM ADVANTAGES
Non-polluting and clean source of energy.
Renewable source of energy.
Immense source of energy.
Capacity to satisfy present and future need.
High intensity in summer season.
15. ADVANTAGES OF SOLAR VAPOUR
ABSORBTION SYSTEM
Uses low grade energy like heat
Ex-exhaust from ic engine.
Less moving parts.
Smooth operation.
Can work on lower evaporator pressure, without affecting
the COP.
Very efficient for higher load conditions.
16. DISADVANTAGES OF SOLAR VAPOUR
ABSORBTION SYSTEM
The initial cost of investment is high.
The solar energy is seasonable during winter season sunrays
falls on the panel is very less .
Absorbtion refrigeration consumed much time to refregerate
compare to compression refrigeration system.
COP is low compare to compression refrigerator.
18. Using solar energy as apower source of the system proved
to be feasible.
Solar energy is a renewable source of energy proved to be
efficient as compare to using electrical energy of steam
energy at the same place.
With the flow of ammonia through the system ,we were
able to to use it as an air conditioner and that to with the help
of renewable and non polluting source of energy i,e solar
energy.
19.
20. REFERENCE
1) PDF document for download at "Archived copy" (PDF). Archived from the
original (PDF) Retrieved 2012-03-31.
2)Jump up^ Eric Granryd & Björn Palm, Refrigerating engineering,
Stockholm Royal Institute of Technology,
2005seechap. 4-3
Jump up^ "US Patent 1781541".
Jump up^ Adam Grosser (Feb 2007). "Adam Grosser and his sustainable fridge,
552 word transcript and video 3mins34". TED. Archived from the original on 19
April 2010.
Retrieved 2010-04-18
3)Sapali,S. N. "Lithium Bromide Absorption Refrigeration System". Textbook Of
Refrigeration And Air-Conditioning. New Delhi: PHI learning. p. 258. ISBN 978-
81-203-3360-4.
See also[edit]