Air conditioning cum water cooler
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This document describes a student project to design an air and water cooler in a single unit. It includes introductions to the components, materials, and working principle. The components include a water distribution system, electrical motor, evaporator pads, fan, pump, water tank, and cabinet. Water is distributed through holes and evaporates on the pads, cooling incoming air blown through by the fan. This design aims to reduce energy and cost compared to separate air and water coolers. It works best in dry, hot climates and has limitations in more humid conditions.
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The document discusses Sensotronic Brake Control (SBC), an electronically controlled brake system for passenger vehicles. SBC uses sensors and a central control unit to optimize brake pressure at each wheel based on driving situation. It provides benefits like emergency braking, driving stability through precise braking at each wheel, and increased brake comfort with less pedal vibration. SBC interacts with other systems like ESP and has add-on functions like Soft-Stop for gentler braking and Drive-Away Assist to prevent rolling on hills. The use of electronics in braking opens possibilities for advanced safety and autonomous vehicle guidance in the future.
Mercedes benz sensotronic
This document provides an overview of Sensotronic Brake Control (SBC), including:
1. The key components of SBC including the brake operating unit, traction system hydraulic unit, and control module.
2. How SBC works during normal braking to provide pedal feel and precise brake pressure control at each wheel.
3. Emergency braking operation which bypasses the brake pressure simulator for direct pressure to the front calipers.
4. Procedures for bleeding the brake system, activating SBC after deactivation, and diagnosing issues using SDS.
dlw training report
The document outlines the design and testing of a regenerative air cooler project led by H.P. Gupta and submitted by Yamika Patel, Sumit Singh, Prem Kumar, and Parul Dixit. It describes the main components of the cooler including a blower, motor, ducts, water pads, heat exchanger, water tank, and water pump. It also includes diagrams of the design and provides details on the fan and blower, motor performance characteristics, heat exchanger, and regenerative air cooler system. The project schedule shows activities from June 2013 to April 2014 including design, assembly, testing and report preparation.
evaporative cooler
This document is a project report submitted by Amit Prasad to Mahendra Pratap Singh for the partial fulfillment of a Bachelor of Technology degree in Mechanical Engineering. The report discusses the design and working of an evaporative cooler. It includes sections on the working principle, theory, and psychrometric processes involved in evaporative cooling. Key points covered include how evaporative cooling lowers air temperature through the evaporation of water and conversion of sensible to latent heat, as well as diagrams illustrating common psychrometric processes like sensible cooling.
Limitation to patent rights – compulsory licensing
This document discusses compulsory licensing of patents in India. It begins by defining compulsory licensing as allowing a third party to use a patented invention without the patent owner's consent, through a court or patent office. It then explains that compulsory licensing balances patent rights with ensuring patents are reasonably used. The document reviews compulsory licensing under TRIPS and Indian patent law, including allowed grounds and cases in India. It notes India retains sovereign right to issue compulsory licenses and will not privately assure against doing so.
Refrigeration Using Waste Heat
The document is a project report submitted by five students for their Bachelor of Technology degree in Mechanical Engineering. It details the design, construction and testing of a refrigeration system that uses waste heat from an internal combustion engine as its energy source, instead of electrical power. The system employs an Electrolux vapor absorption refrigeration cycle, which is suitable for operating on low-grade heat. Diagrams and descriptions of the key components, such as the compressor, condenser and evaporator, are provided. The report also includes photographs documenting the building process.
Sensotronic brake-control
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SENSOTRONIC BRAKE CONTROL(SBC)
Sensotronic Brake Control (SBC) is an electro-hydraulic braking system introduced by Mercedes-Benz that allows for individual brake pressure control of each wheel. SBC uses a central control unit connected to sensors and valves to determine the optimal brake pressure for each wheel based on inputs like pedal position, vehicle motion, and inputs from the Electronic Stability Program. This precise control of brake pressure for each wheel provides benefits like reduced stopping distances, improved stability, and comfort features like soft stops and drive-away assist.
Development of vapour absorption refrigeration system in vehicles
This document discusses the development of a vapor absorption refrigeration system for use in vehicles. It begins with an introduction that explains vapor absorption and vapor compression refrigeration systems. The objectives are to lower the vehicle's temperature using waste heat from the engine. Literature on previous related projects is reviewed. The proposed system would use a generator heated by exhaust gases to power the vapor absorption cycle. Performance is analyzed considering temperatures and heat transfer. Components are specified and costs are estimated. A timeline is provided. The vapor absorption system could utilize otherwise wasted engine heat to provide cooling, reducing fuel costs compared to vapor compression.
Rights and limitations of patentee
The document discusses the rights of a patentee according to the Patents Act of 1970 in India. It defines a patentee as the person granted a patent and outlines their rights to the patented invention. These rights are conditional, with limitations including government use of patents, compulsory licenses, and revocation of non-working patents. The patentee's main rights are the exclusive right to prevent others from commercially exploiting the patented product or process without consent.
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Limitation to patent rights – compulsory licensing
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Development of vapour absorption refrigeration system in vehicles
Similar to Air conditioning cum water cooler
DESIGN, DEVELOPMENT AND TESTING OF MULTI CONDITIONAL COOLER
This document describes the design, development and testing of a multi-conditional cooler by a team of 4 students. The device aims to provide both cooling and heating in a single unit to save space and cost. It works on the principles of evaporation, refrigeration and heating. The team designed, modeled and fabricated the device which includes a compressor, condenser, capillary tube, cooler coils and a heating coil. Testing showed the device effectively provides temperature control in different seasons from a single unit.
engr103_grp06710_finRep (1)
The group designed, constructed, and tested a heat pipe to cool small engines as an alternative to existing air or liquid cooling methods. They created CAD models and conducted simulations before building a 1” diameter copper pipe with distilled water as the working fluid. Four tests showed improvements as radiator fins and a tighter seal were added. The final test demonstrated effective heat transfer from the evaporator end, through the pipe, and out of the condenser end and radiator fins. While construction challenges arose, the project met its goal of creating a functional small engine cooling heat pipe and provided insights into heat pipe design and principles.
Optimization of Skin Condenser Using Bundy Tube In Place Of Copper Tube
The condenser is an important device used in the high pressure side of a refrigeration
system. Its function is to remove heat of the hot vapour refrigerant discharged from the compressor. The
main objective of this work is to carryout experimental investigation on Bundy Condenser coil used in
Skin Condenser for a Deep Freezer of 425 liters capacity; it is proposed to optimize the length of the
condenser coil. R – 134A will be used as refrigerant for the proposed investigation.
Copy of Solar Water Heater.pptx
The document describes a student project to design and test a small-scale solar water heater. The goals were to create a heater with a net heat transfer rate of 500 W/m2 using recycled materials. Testing showed a maximum heat transfer rate of 476.9 W/m2 and maximum water temperature of 29.9°C, nearly meeting the goals. While some improvements were identified, the students learned from the process and experimented with designing renewable energy technology.
Condenser and its types
Condenser and its types ANKIT SAXENA Asst. Prof. @ Dr. Akhilesh Das Gupta Institute of Technology and Management, New Delhi
This document discusses steam condensers and their types. It defines a condenser as a device that condenses steam to water using cooling water. There are two main types - jet condensers and surface condensers. Jet condensers mix steam and cooling water directly, while surface condensers separate them with a heat transfer wall. The document classifies condensers in various ways and describes the functions, elements, advantages and disadvantages of different condenser types. It also discusses vacuum creation, sources of air leaks, and the effect of condenser pressure on thermal efficiency.Cs31411414
This document summarizes a review paper on the performance of air-cooled condensers under various atmospheric conditions. It discusses how the performance of air-cooled condensers degrades under high ambient temperatures and windy conditions due to reduced heat rejection. Various techniques are explored to improve performance, such as using a hybrid dry/wet dephlegmator at high temperatures, shading from solar radiation, installing wind walls, increasing fan speed, and cleaning fins. Changing the tube geometry from circular to flat tubes inclined at an angle can also enhance heat transfer rates.
Irjet v3 i12235
This document describes the design and fabrication of a mini air cooler. The authors modified an ordinary table fan by adding a copper tube with fins and a cooling chamber. Cold water is circulated through the copper tube using an aquarium pump to reduce the heat in the surrounding environment. The table fan blows air over the copper tube and fins, which increases the cooling effect. The device aims to provide air cooling without high power consumption, benefiting areas with limited access to electricity. It was found to decrease air temperature by 8-10°C through this simple, low-cost modification of a standard table fan.
Bn32839844
This document summarizes an experimental study on the performance of an air-cooled condenser for low pressure steam condensation. Key findings include:
- Mass flow rate of condensed steam decreases with decreases in steam pressure and temperature difference.
- While capacity is sometimes limited by ambient conditions, air-cooled condensers are still preferable to traditional steam surface condensers due to water availability and environmental issues.
- Previous studies have examined the effects of ambient conditions like temperature and wind velocity on the performance of air-cooled condensers. Fins and changes to tube geometry have been used to improve performance.
Design and demonstration of heat pipe based waste heat recovery system
This document describes the design and demonstration of a heat pipe-based waste heat recovery system. Key points:
- Heat pipes allow for highly efficient heat transfer over long distances with minimal temperature loss through the evaporation and condensation of a working fluid inside a sealed pipe.
- The authors designed and built a heat recovery system using 10 copper heat pipes fitted with aluminum fins to transfer heat from a hot air source to a cooler air sink.
- Testing showed the heat pipes could transfer heat with a temperature difference of only 2-3°C over a length of 150mm, much better than a comparable copper pipe.
- The heat recovery system achieved efficiencies up to 62% at recovering heat from a
IJET-V2I6P2
This paper describes an experimental study of using the waste heat from a Panasonic Under-
Ceiling split room air - conditioner had a rated capacity of 3.51 kW (12,000 Btu/h). An under – ceiling
split type air conditioning for heating domestic water in private homes. Energy recovery improved the
performance, and the recovered energy could replace electricity completely for heating domestic water
use. An extra charge of refrigerant in the air-conditioner could prevent its compressor from over heating
during energy recovery. The experimental conducted on varies capacity of the range from 22.5 litres to
120 litres storage tank. Results show the water temperature increased lies in the range of 50 OC to 65
OC. It was found that, when the initial water temperature in the 22.5 litres storage tank 27 OC, the water
temperature reached 65 OC in 105 minutes. For 120 litres water, temperature increased from 27 OC to 62
OC,5 in 240 minutes.
Low cooling strategies
This Presentation talks about low cooling strategies for buildings viz. radiant heating/cooling, geothermal heat exchange, rock beds and ground tunnel with examples and climate consideration.
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This document discusses the design and components of a solar water heating system for residential buildings. It describes how flat plate collectors absorb solar energy and transfer heat to water, which is then stored in an insulated tank. Hot water is circulated through insulated steel pipes to rooms in the building. The document evaluates the performance of the system with and without pipe insulation, finding that insulation reduces heat losses by 50%. It also discusses factors like collector orientation, flow rates, pipe dimensions and insulating materials. The conclusion is that while insulation helps, heat losses remain high due to long pipe runs between the collector and tank.
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project related to internship or idea to work on the basis of electricity of mechanical based project which is simple and easy due to using software
D013161520
This document discusses the optimization of parallel condensing in a steam power plant. It begins with background on steam power cycles and condensers, then discusses design criteria for water-cooled and air-cooled condensers. It presents the design procedure for a water-cooled condenser in 10 steps. Graphs analyze operating parameters like turbine exhaust pressure, air velocity, and transverse pitch. It concludes that a parallel condensing system utilizing both water-cooled and air-cooled condensers can reduce capital costs and improve performance compared to solely air-cooled systems, with the optimal mixture depending on water availability.
Improving Efficiency of Cooling Coil Chiller Units
Air Cooled condensers were first introduced in US
power industry in early 1970’s, but only during last 10-15
years number of installations greatly increased largely due to
growing attention being paid to environmental safety. Also,
growing demand for water for both domestic and industrial
use has brought an increased interest in use of Air Cooled
condensers. This is a review paper which studies the
performance of Air-cooled condenser under various operating
conditions it is found that there is degradation in performance
of air cooled condenser under high ambient temperatures and
windy conditions. The heat rejection rate of ACC also depends
on surface condition of fins and thus its performance is
reduced due to external fouling of finned tubes due to weather
conditions and by internal fouling from condensate (Ammonia
corrosion). A Hybrid (dry/wet) dephlegmator achieves major
enhancement in performance when ambient temperatures are
high. Also shading of condensers is done for air-conditioning
units to mitigate the adverse effect of high ambient
temperatures due to solar radiation. Now a day’s wind walls
are used to reduce the effect of high wind velocity .second
option is to increase the fan speed Fin cleaning plays an
important role in heat rejection. External cleaning improves
air side heat transfer coefficient. In order to improve the
performance of an ACC Flat tubes inclined at some angle to
horizontal can also be used in place of conventional circular
horizontal tubes so that an improvement in heat transfer rate
occurs.
Steam Condensers
Steam condensers condense steam into water by removing heat using circulating cooling water. This reduces pressure in the turbine exhaust and increases efficiency. There are two main types: jet condensers where steam and water directly mix, and surface condensers where they are separated by a heat transfer wall, allowing pure condensate reuse. Lower condenser pressures increase thermal efficiency by allowing more expansion through the turbine, though very low pressures risk moisture issues. Vacuum is created from specific volume changes when steam condenses.
STEAM CONDENSER
The document discusses different types of steam condensers used in power plants. It describes the functions of condensers as maintaining low pressure on the exhaust side of a steam turbine to improve efficiency. The key types discussed are surface condensers, where exhaust steam and cooling water do not mix, and ejector condensers, where steam and water mix while passing through hollow cones. Evaporative condensers have steam pipes over a falling water film, with air circulation evaporating some water for cooling. Condenser efficiency is defined as the ratio of cooling water temperature rise to the vacuum-inlet temperature difference. Air leakage into condensers reduces vacuum and heat transfer, requiring more cooling water. Natural draught towers use wind to induce upward
Extended_Abstract
This document summarizes a research project that developed a low-cost evaporative cooler unit suitable for industrial environments in Sri Lanka. The unit uses both direct evaporative cooling and solid desiccant dehumidification to control temperature and humidity. Testing showed the unit was able to provide sufficient thermal comfort while only slightly changing relative humidity. Some design improvements were identified, such as using a larger evaporation chamber and improving airflow separation, but overall the evaporative cooling technology proved applicable to Sri Lanka's climate.
FYP_ Presentation.pdf
The aim of this study is to investigate the performance of the Ground-coupled heat exchanger (GCHE) using appropriate soil, Phase change material (PCM), and Horizontal type heat exchanger with vegetation. The proposed system is powered by Photovoltaic Panels (Solar energy) and a feedback-based closed loop for user input. The Closed-loop system is calibrated in order to control the velocity of the air circulating in the heat exchanger taking into account the surrounding parameters by means of IoT Architecture. The Modelling was done using SolidWorks, and simulation by ANSYS Fluent. Further, the results were analyzed by ANOVA.
E012142024
The document describes an air conditioning system with a ground source heat exchanger (ACSWGSHE) that was designed and tested. A conventional 1.5 ton split air conditioner was modified by replacing the condenser with a ground heat exchanger placed 15 meters underground. The heat exchanger was made of copper tubing in a helical coil shape. Testing showed the system performed best when the borehole was filled with water, achieving a coefficient of performance of 3.72, higher than the 2.11 COP of the conventional split system.
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DESIGN, DEVELOPMENT AND TESTING OF MULTI CONDITIONAL COOLER
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Climate Impact of Software Testing at Nordic Testing Days
Air conditioning cum water cooler
- 1. SUBMITTED BY: Kishan Kumar Mondal Aashu Anant Harshit Singh Deepak Singh B.tech (Mechanical) Deepchand Kanojia 4th year , 7th semester Salik Ahmed 2k16-2k17 Adil Nawaz Major Project on “Air cum water cooler”
- 2. CONTENT INTRODUCTION COMPONENT REQUIRED COMPONENT DESCRIPTION AND PURPOSES WORKING PRINCIPLE MATERIAL REQUIRED ADIABATIC EFFICIENCY OF WATER CUM AIR COOLER USES LIMITATION PRECAUTION CONCLUSION BIBLIOGRAPHY
- 3. INTRODUCTION As we know that the war of yesterday was for land, today is for energy and tomorrow is for water. A country of 1.2 billion needs equipment which is energy efficient. As there is large scarcity of energy in our country so we as an engineer has the prime duty to make energy efficient equipment. While thinking in this direction we came to know that water and air cooler are the basic equipment which are present in almost every household, so we have tried to consist these two in a single unit, by using this as a single unit we are not only reducing the space consumption but also reducing the cost factor. When we are using water and air cooler as separate unit in home, they consume 3 times more electricity as compare to the equipment which contain them in single unit. This helps in saving cost as well as energy.
- 4. COMPONENT REQUIRED 1.WATER DISTRIBUTION SYSTEM 2.ELECTRICAL MOTOR 3.EVAPORATOR PADS 4.FAN 5.PUMP 6.WATER TANK 7.CABINET 8.TAP 9.KHAS-KHAS-GRASS 10.TANK
- 5. COMPONENT DESCRIPTION & PURPOSE COMPONENT DESCRIPTION: 1.WATER DISTRIBUTION SYSTEM : Water is distributed through small holes provided in to the water traps od side & back panel , which deliver equal amount of water to follow through the wetted pads. 2.ELECTRICAL MOTOR :To drive the fan 3.EVAPORATOR PADS: Installed on three sides of the desert cooler. 4.FAN : To pull the air through the wetted pads and supply the air to the space to be cooled. 5.PUMP: Used for circulation of a water.
- 6. COMPONENT DESCRIPTION & PURPOSE COMPONENT DESCRIPTION: 6.WATER TANK : Used as reservoir of water installed at the bottom of the cooler. 7.CABINET: All the parts are enclosed in a decorative cabinet , generally made of steel. 8.TAP:-10mm dia.,made of Brass metal
- 7. 9.KHAS-KHAS- GRASS:The air which drought fan sucks from atmosphere is cooled by this grass which has property to absorb water. It helps to increase the efficiency of unit by providing the inlet air at the temperature already lower than the ambient temperature. This air will further cooled inside the unit. This Khas-Khas grass is attached to the three sides of the cooler. 10 .TANK : It is made up of GI sheet of 2L capacity. It is used for the purpose of storing water which has to be moved around the heat exchanger by lifting it with the help of submersible pump.
- 8. COMPONENT DESCRIPTION & PURPOSE PURPOSE : This project helps in saving the energy as well as cost. The air may be sufficiently cooled by evaporative process to result a considerable degree of summer comfort in climates of high dry bulb temperature associated with low relative humilities. It gives more comfort at high dry bulb temperature & lower wet bulb temperature and low relative humidity.
- 10. WORKING PRINCIPLE HEAT EXCHANGER on the upper surface has inlet for fresh water and outlet for cool water. The inlet water has temperature slightly more than that of the water spread over the heat exchanger. The submersible pump lifts the water from the water tank and move around the GI tank and thus the transfer of heat occurs. As we know that heat is always transferred from high to low temperature and the water spread over the heat exchanger is at low temperature, thus the inlet water while passing through the heat exchanger gives heat to the water outside the heat exchanger and we get the cold water from outlet of heat-exchanger and then cold water moves through the copper pipe(which had 10mm dia.,no. of ring=9,ring dia.=3 inch.,gap b/w ring=2 inch), where further cooling take place.
- 11. Material Required 1. GI sheet 2 ltr. capacity 2. Iron strip 2 kg 3. Exhaust fan 1 piece 4. Motor pump 1 piece,25 watt 5. Tap(Brass metal) 1 piece,10mm dia 6. fan 200watt 7. Copper pipe 10ft. length 8. switch 2 piece 9. Pad(khash) 3 piece 10. Nuts,bolts,screws 25piece,25piece,18piece respectively 11 Louvers(air inlet) 1 frame 12. Primer,paint 0.5 litr,o.5 litr.
- 12. Adiabatic efficiency of water cum air cooler Ambient temp:- Dry bulb temp. (DBT) = 25°c Wet bulb temp. (WBT) = 23°c Conditioned air:- Dry bulb temp. (DBT) = 20°c Wet bulb temp. (WBT) = 16°c
- 14. USES This project helps in saving the energy as well as cost. This idea is greatly helpful to the middle class family and poorer family.
- 15. LIMITATIONS The desert cooler has its some limitations , under which it has to work .Following are the leading limitations : 1.The lowest possible dry bulb temperature achieved by evaporating cooling is quit less. 2.The desert cooler are only successful where low wet bulb temp. and high dry bulb temp. occurs ; in other words where the humidity of air is quit low and the temp. is sufficiently high (i.e.about 21 degree and below 8 , Dbt about 35 degree above. 3.It is not suitable for high humidity areas because during the cooling a moisture is added resulting in increased level of humidity , which feels uncomfortable.
- 16. PRECAUTIONS The metal body should be painted timely otherwise it will corrode. If there is no water in the tank then the motor of pump will be damaged. So we should check the water level in the tank regularly. The pads should be changed every year. Oiling and greasing should be done on the fan and pump once in every year. Check the proper earthing of the fan motor and pump motor before fittings the pin to avoid shock. Check the water spray pipes, if leaking, replace it . Holes for water distribution system should be cleaned in alternating 4 or 5 month. The tank should be cleaned just after the season and coated with corrosion resisting paint like red oxide or some other paint.
- 17. CONCLUSION There is a great difference in the theoretical knowledge and actual execution of any work. The theoretical knowledge is not sufficient for a worker. The execution of this knowledge provides self-confident and opportunities for success in future. In this way a project to say that without this type of activities in a technical institution a student may be graduated by not educated. A technical may launch an industry in future if he is unemployed.
- 18. BIBLIOGRAPHY 1. HEAT AND MASS TRANSFER BY RAJPUT, R.K. 2. ENGINEERING THERMODYNAMICS BY NAG, P.K. 3. FROM WEBSITE: www.wilipedia.com www.mechprojects.com www.innovation.com
- 19. THANK YOU…..