Investigatory project Essay

Abstraction
Extreme heat peculiarly during summer has physiological and psychological effects on worlds. The happening of utmost heat in our milieus is a current job that caused by gradual desolation of our environment. This led the research workers to develop an eco-friendly device that can lend to the solution to this job.

This survey determined the efficiency of the jury-rigged eco-friendly evaporative air ice chest in conserving electrical energy ingestion and in cut downing room temperature in relation to clip. and sum of ice regular hexahedrons.

The stuffs used in the building of this jury-rigged evaporative air ice chest are plyboard. insularity froth. dynamotor from discarded plaything autos. electric fan blades from CD instance and UTP overseas telegram wire.

Electric energy ingestion of the jury-rigged air ice chest was computed utilizing the expression E=Pt wherein E is energy ingestion. P is power evaluation and T is clip. The computed energy ingestion of jury-rigged air ice chest was compared with the computed energy ingestions of air conditioners and commercial air ice chests.

The efficiency of the jury-rigged eco-friendly evaporative air ice chest was tested in a 4m ten 3m room. The room temperature was measured one at a clip under different conditions: the consequence of clip on room temperature and the consequence of the sum of ice on room temperature.

The informations were recorded. analyzed and interpreted. Based on the reading of informations. the jury-rigged eco- friendly evaporative air ice chest consumed less electric energy ingestion compared to air conditioners and commercial air ice chests. In the first portion of the experiment. as the clip increases the room temperature decreases. In the 2nd portion of the experiment. as the sum of ice additions the room temperature decreases.

It was concluded that jury-rigged eco-friendly evaporative air ice chest is efficient in footings of cut downing electric energy ingestion and in diminishing room temperature. There is a important relationship between clip and room temperature. The sum of ice significantly affects the room temperature. It is recommended that more surveies should be undertaken to better the efficiency of this jury-rigged eco- friendly evaporative air ice chest utilizing other stuffs.

Chapter I
Introduction
Technology brings amenitiess and convenience to the lives of the people. It is a fact that engineering has the ability to make admirations in the field of industry. medical specialty. agribusiness and communicating. However. it can non be denied that it is besides one of the perpetrators to what is go oning to our environment such as the happening of clime alteration. impairment of natural resources and dismaying waste jobs. These state of affairss gave the research workers the thought to make an jury-rigged eco- friendly device that could lend to decrease jobs on energy crisis. ozone bed depletion and waste jobs. A. BACKGROUND OF THE STUDY

Global heating is an overall province of being that is the cumulative consequence of 100s of environmental factors. It is a gradual addition in
the earth’s mean surface temperature and one of its effects is the utmost heat during summer that could take to heat shot. Heat shot is the most terrible signifier of heat unwellness and is a dangerous exigency.

Harmonizing to Manny Mendoza. conditions predictor at the Philippine Atmospheric. Geophysical and Astronomical Services Administration ( PAGASA ) . the hottest yearss are normally experienced in the state in May. ( Helen Flores. 2012 ) . Philippines has a high comparative humidness because of high temperature and the encompassing H2O organic structures. The mean monthly comparative humidness of Philippines varies between 71 per centum in March and 85 per centum in September. The warm temperature and high relation and absolute humidness together give rise to high reasonable temperature throughout the state of Philippines. Aside from jobs on clime alteration. the universe is besides confronting energy crisis.

The world’s energy militias are non limitless and one of the current jobs in the state today is deficient supply of energy while the demand for electricity becomes higher. To suit the burden growing. the Department of Energy thru the National Transmission Corporation and National Power Corporation are set abouting undertakings to turn to this issue. ( Manila Bulletin Newspaper. March 10. 2010 ) . For the consumers of electrical energy. the best manner they can make to lend in work outing our jobs on energy crisis is through energy preservation. Energy preservation can be achieved through increased efficient usage of energy. in concurrence with reduced energy ingestion and/ or reduced ingestion from conventional energy beginnings.

The people behind scientific discipline and technology… . the scientists and the discoverers every bit good as the hereafter scientists and discoverers should concentrate on making merchandises and devices that could rectify jobs on energy crisis and could cut down jobs on planetary heating and waste disposal jobs. Air conditioner is a normally used contraption peculiarly during hot yearss. It is designed to alter the air temperature and humidness within an country and because of the working rule of this device. a big sum of energy is being consumed and gives out extra heat as a by-product that adds up to planetary heating.

This device is responsible for the ingestion of up to 5 % of world’s produced electricity and the chemicals utilized in this device as coolants are harmful to the environment. This has led the scientists to plan methods of chilling air which may be more efficient. renewable and ecologically good and through this air ice chests were invented. Evaporative ice chests have many benefits for chilling places. concerns. warehouses. and commercial kitchens. These systems. frequently called swamp ice chests have distinguishable advantages over traditional air conditioners.

They can take down air temperature by 20 grades. The fan blows this cooled air throughout the house or commercial constitution supplying an effectual chilling solution. These systems use much less electricity than traditional air conditioners. and they cost a fraction of the monetary value. However. in malice of these advantages of commercial air ice chests. most of the people could non still afford to purchase these air ice chests since these are more expensive than ordinary electric fans. However. electric fans although are frequently used to cool people. they do non really cool air but work by evaporative chilling of perspiration and increased heat conductivity into the environing air due to the air flow from the fans. Therefore. fans are uneffective at chilling the organic structure if the environing air is near organic structure temperature and contains high humidness and air ice chest is more efficient than electric fans. B. STATEMENT OF THE PROBLEM:

This survey determined the efficiency of the jury-rigged eco-friendly evaporative air ice chest in conserving electric energy ingestion.
Specifically this aimed to reply the undermentioned inquiries:
1. Is the electric energy ingestion of this jury-rigged eco-friendly evaporative air ice chest lesser compared to commercial air conditioners and air ice chests? 2. Is there a important relationship between clip and room temperature? 3. Is the sum of ice significantly affects the lessening of room temperature?

C. HYPOTHESES
1. The electric energy ingestion of jury-rigged eco- friendly evaporative air ice chest is lesser compared to the electric energy ingestion of air conditioner and commercial air ice chest. 2. There is important relationship between clip of utilizing jury-rigged air ice chest and room temperature. 3. The sum of ice significantly affects the lessening of room temperature.

D. SIGNIFICANCE OF THE STUDY

The current status of our environment is bit by bit deteriorating and it has great impact on the wellness and wellbeing of the all living existences. Therefore. recycling and improvisation of new procedures. merchandises and devices are greatly needed. This survey is an advanced application of cut downing temperature utilizing an jury-rigged evaporative air ice chest. It is less expensive and consumes less electric energy ingestion. It does non let go of harmful substances to the milieus. Furthermore. most the stuffs used in building this device are from cast-off stuffs. This device is for those who can non afford to purchase air conditioners or commercial air ice chests but want to soothe themselves during hot humid yearss. E. SCOPE AND LIMITATION OF THE STUDY

The survey focused on the building of an jury-rigged evaporative air ice chest and on proving the efficiency of this air ice chest in footings of electric energy ingestion and the consequence of clip. sum of ice on room temperature. The testing of its efficiency was conducted in a 4m ten 3m room and with an initial room temperature of 26° C.

F. DEFINITION OF TERMS
The undermentioned definitions are used to ease apprehension of this survey. Air Cooler. This is unit for chilling the air supplied to a edifice or for dispersing the heat from machinery. furnaces. and other types of heat-producing equipment. Dynamotor. This refers to an electrical machine uniting generator and motor within one lodging. normally used to change over direct current to jumping current and used as either an electric motor or a generator. change overing electrical power to mechanical power. Eco- friendly. This literally means earth-friendly or non harmful to the environment.

This term most commonly refers to merchandises that contribute to green life or patterns that help conserve resources like H2O and energy. Efficiency. This connotes the public presentation of the jury-rigged air ice chest in cut downing electric energy ingestion and in diminishing room temperature. Electric Energy Consumption. This refers to the sum of energy consumed and is expressesed in kwh Evaporative. This is caused by vaporization. a procedure of altering liquid to vapor. Improvised. This denotes something that was created utilizing stuffs that are available Insulation Foam. This consists of panels of polyurethane froth that are used in
commercial and residential building as roof or outside wall insularity.

Room Temperature. This implies a temperature inside a temperature-controlled edifice

G. REVIEW OF RELATED LITERATURE
The reappraisal of the survey focuses on the building of jury-rigged evaporative air ice chest and its efficiency in cut downing electric energy ingestion and in cut downing room temperature with clip and sum of ice. Facts were gathered from books and cyberspace as mentions in order to obtain relevant information for this survey. Swagatam in 2011 stressed that the last 100 old ages have possibly witnessed the tallness of slaughter that the human race can make to our merely planet’s natural resources.

He pointed out that some of the human activities cleaned up more than 50 % of the rain wood. depleted the ozone bed. guzzled up fossil fuel to near-exhaustion. increased planetary heating. Harmonizing to him. the hereafter should look rather bright as scientists are seeking difficult to happen nature friendly technological options that may profit world without impacting female parent Earth. Inspired from nature itself. NREL ( the National Renewable Energy Laboratory ) has invented ( or instead modified ) an air conditioning device integrating an advanced engineering called “Desiccant-Enhanced evaporative air conditioner – DEVap. ” An evaporative ice chest with this engineering non merely cools the air. but besides dehumidifies it in a pretty efficient manner. Dr. Saurabh Gupta in 2001 cited that evaporative ice chests have many benefits for chilling places. concerns. warehouses. and commercial kitchens. These systems. frequently called swamp ice chests. are basically large fans with dampened tablets in forepart of the air flow.

Air is forced through the tablet. and evaporative action causes important chilling. Swamp ice chest care requires altering the swamp ice chest tablets each twelvemonth or two. but they are cheap at $ 20– $ 40 per set. The tablets can be made from wood shavings—aspen trees are often used—because shaves retain wet and resist mold. Mike Clarke in 2004. from the All-Ireland Hub for Trials Methodology Research in Queen’s University Belfast. explained that swamp ice chests have distinguishable advantages over traditional air conditioners. The engineering is sound. and these ice chests can take down air temperature by 20 grades. The fan blows this cooled air throughout the house or commercial constitution supplying an effectual chilling solution. These systems use much less electricity than traditional air conditioners. and they cost a fraction of the monetary value.

They are non merely inexpensive to purchase and put in but besides can be built by enterprising people for extra nest eggs. All that is needed is a blower and pump. a chilling tablet. H2O and a box. Sheet metal is the best stuff from which to build the box. because H2O must be kept in it to wash the tablet. Evaporative ice chests can utilize between 3–15 gallons of H2O daily. Standard air conditioning ( AC ) units pass air over spirals filled with refrigerant. The refrigerating heats and cools by being compressed. The coils cool the air and it is recirculated throughout the place. Hot air and wet are vented outside. but the system is fundamentally closed. If Windowss or doors are opened. cool air flights. Swamp ice chests operate rather otherwise. The chilling consequence depends on outside air traveling through the place. Air must hold an recess and mercantile establishment for this system to work.

Shutting and opening doors control airflow in evaporative systems. while AC units employ ductwork to direct air. Swamp ice chests can use canals. but they need to be larger to suit a greater measure of forced air. Swamp ice chests blow damp air. while AC units circulate dry air. Using the two types of ice chest together is contraindicated. because they cancel each other out. One is a humidifier and the other is a dehumidifier. For this ground. swamp ice chests may non work good in humid climes. These systems depend on dry air to work expeditiously. Otherwise they blow moistnesss. boggy air. and vaporization does non happen. so no chilling consequence is produced. High humidness can do the swamp ice chest tablets to smell musty. Swamp ice chests are superb for usage in countries with dry climes.

Desert countries and topographic points with light one-year rainfall rates are perfect locations for people to bask the enormous benefits of these chilling systems. Pascholda in 2005 stressed out that the monthly costs of running a swamp ice chest can be less than tierce of the cost of runing AC chilling units. These efficient units operate on 120-volt current. and they can be plugged into any mercantile establishment without necessitating a particular circuit. The air in the place is continually replaced. which can extinguish sources. fume and stale-air olfactory properties. Moisturized air can be good for wood furniture and quality cloth curtains and upholstery. The swamp ice chest tablets expeditiously filter pollen and dust. cut downing allergic reaction symptoms for sensitive persons. These systems require minimum ductwork. One short air canal can direct air to a cardinal location. and merely opening and shuting doors can chill suites or halt air flow. Swamp ice chest care is easy. The tablets need to be changed every season or two.

The fan belt demands periodic review and should be replaced if it develops more than an inch of slack. The H2O reservoir should be cleaned yearly of any calcium hydroxide and graduated table sedimentations. and the blower bearing demands to be checked to guarantee the oil degree is equal for lubrication. A swamp ice chest can be a enormous benefit for the environment and salvage householders money on equipment. care costs. energy. and fix measures. While evaporative chilling is one of the oldest signifiers of clime control still found today. evaporative ice chests remain a extremely sought-after option to traditional air conditioning. While really effectual and efficient when used decently. these chilling units are non for usage everyplace. Due to the evaporative procedure used by these swamp ice chests. these chilling units are best used in hot. dry climes. including the Southwestern United States. In these climes. nevertheless. an evaporative ice chest can be the most effectual and efficient agencies of clime control.

Waltona in 2006 explained that evaporative swamp ice chests are extremely efficient and economical chilling devices that. on-the-whole. will run for less money than an air conditioner. Evaporative ice chests cost less to both operate and maintain than their air conditioning opposite numbers. In add-on to being cheap to put in. evaporative ice chests besides do non necessitate anything more than minimum seasonal care. Traditional chilling devices. nevertheless. necessitate regular cleansing of the air filter to guarantee the unit is runing at maximal efficiency. Evaporative ice chests besides use less energy while runing when compared to typical a/c units. It is of import to retrieve that due to the vaporization procedure. an evaporative ice chest is most efficient in an country that is both hot and dry. without a batch of wet in the air.

The most popular evaporative ice chests employ two classs of ice chest tablets: aspen wood shavings and stiff cellulose media. The aspen tablet ice chest draws outside air into all four sides through metal panels that support the aspen tablets. The aspen wood is used due to its belongingss of being odourless. chemically inert. and easy absorbent. ( Watt and Brown. 2005 ) An article in Health Day intelligence in July 2012 cited that a fan might assist to increase heat loss if the temperature is below 95°F and the fan is
non straight aimed at the individual but when temperatures are above 95°F. the fan might really lend to heat gained.

Chapter II
Methodology
A. Preparation of the Materials
a. 19’’x15”x11” Ply wood
B. Insulation froth
c. Dynamotor from discarded mechanical plaything autos
d. Cadmium instance
e. Electric wire ( 1 m UTP overseas telegram wire )
f. joggles
g. emery paper

B. Construction of Improvised Eco- Friendly Evaporative Air Cooler A 14. 5”x10. 5”x15” box made of plyboard was constructed and served as the organic structure of the jury-rigged ecofriendly evaporative air ice chest. Three jury-rigged electric fan blades from Cadmium instance were placed and fixed together with dynamotors from cast-off mechanical plaything autos inside the wooden box. Three electric fan blades were placed in well- planned places to hold a good air circulation. Electric wires ( UTP overseas telegram wire ) are installed. A fictile container with ice regular hexahedrons was placed inside the box.

C. Testing the Efficiency of the Improvised Eco- Friendly Evaporative Air Cooler in footings of

1. Electric Energy Consumption
The electric energy ingestion in one hr of the jury-rigged eco- friendly evaporative air ice chest was computed utilizing the expression E= Pt ( E is energy ingestion. P is power and T is time. ) and was compared to the computed energy ingestion of air conditioners and commercial air ice chests.

2. Time in Using the Improvised Air Cooler
The experiment was conducted inside a 3m ten 4m room. Windows and door were closed. The initial room temperature was measured utilizing a research lab
thermometer. Then improvised eco-friendly evaporative air ice chest utilizing 20 regular hexahedrons of ice was plugged to 220 AC beginning. Room temperature was measured 50 centimeters off from the air ice chest every ten proceedingss in one hr. Datas were recorded.

3. Sum of Ice Used
The experiment was conducted inside a 3m ten 4m room. Windows and door were closed. The initial room temperature was measured utilizing a research lab thermometer. Then improvised eco-friendly evaporative air ice chest without ice regular hexahedrons was plugged to 220 AC beginning. Room temperature was measured 50 centimeters off from the air ice chest utilizing 10 regular hexahedrons of ice. The process was repeated utilizing 20 regular hexahedrons of ice and 30 regular hexahedrons of ice. Datas were recorded.

Chapter III
PRESENTATION. INTERPRETATION AND ANALYSIS OF DATA
This chapter presents the analysis of informations gathered. the findings and the reading of consequences. A. Electrical Energy Consumption
The graph shows that Improvised Eco -Friendly Evaporative Air Cooler has the least electric energy ingestion compared to air conditioner and commercial air ice chest. Less energy ingestion means lower electric measure.

B. Time in utilizing the Improvised Air Cooler

The tabular array shows that room temperature decreases with the addition of clip. It shows that clip has important relationship with room temperature. C. Amount of Ice Used
Number of Ice Cube
Room Temperature

Table 4. 3 Effect of Amount of Time in Using Improvised Air Cooler on Room Temperature
The tabular array shows that room temperature decreases as figure of ice regular hexahedron additions. It shows that sum of ice significantly affects the room temperature.

Chapter IV
CONCLUSION AND RECOMMENDATION

Decision
After careful analysis of informations. it is concluded that the Improvised Eco- Friendly Evaporative Air Cooler is efficient in footings of cut downing electric energy ingestion and in diminishing room temperature. There is a important relationship between clip and room temperature. The sum of ice significantly affects the room temperature.

Recommendation
It is recommended that more surveies should be undertaken to better the efficiency of this jury-rigged eco- friendly evaporative air ice chest so that it can be used in larger suites.

Bibliography
Hewitt. Paul G. Conceptual Physics. The Lehigh Press. Inc. 1998 Encyclopedia Americana. Grolier. Incorporated. 1996
Dorin. Henry. Chemistry ( The Study Of Matter ) . Allyn and Bacon. Inc. 1987 The
American Heritage ( Desk Dictionary ) Houston Miffin Company. 1976 Webster’s Dictionary. Lexicon Publications. Inc. 1992
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