CHAPTER 1 INTRODUCTION Background of the Study Pasteurization is the process of heating food‚ which is usually a liquid to a specific temperature for a predefined length of time and immediately cooling it after it is removed from the heat. Pasteurization relies on the principle that most harmful bacterial can be killed by heat. The most effective way to kill bacteria is boiling‚ but this compromises the flavor of the liquid. Pasteurization strikes a happy medium‚ keeping the flavor delicious
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four basic components must be present for the cooling process to take place. There are a few components in heat pumps that do not show up in air conditioners. These devices are what make the air conditioner into a heat pump. The reversing valve reverses the refrigerant flow in an air conditioner to enable it to produce heat in the space where cooling is usually produced. A second metering device is present in the outdoor unit to enable the cooling effect to take place in the outdoor coil. The
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Winter is the coldest season of the year and also means higher energy and heating bills. It is vital that we retain heat inside our homes and keep cold air out. Eliminating waste or cutting back unnecessary energy use is an easy way to keep your hard earned money in your pocket. Waste elimination is a proven approach to increasing efficiency. By identifying and eliminating possible sources of wasted energy‚ you can save energy and save your money on utility bills. Ways to save energy during
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exchanger. A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall‚ so that they never mix‚ or they may be in direct contact.[1] They are widely used in space heating‚ refrigeration‚ air conditioning‚ power plants‚ chemical plants‚ petrochemical plants‚ petroleum refineries‚ natural gas processing‚ and sewage treatment. The classic example of a heat exchanger is found in an internal combustion engine in which a
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temperature in the living room‚ just with single button the room temperature can be controlled automatically so when the room temperature is too cold the heater will operate to produce a regulated temperature and when the room temperature is too high the cooling system will operate to produce the desired temperature. 1.2 Objectives: There are four objectives to be achieved in this project. Below are the following objectives: 1.2.1 To design appropriate circuit for temperature control. 1.2.2 To design
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5 Literature review 2. Experimental method 2.1 Solubility of SN 1010 in various solvents 2.2 Calibration curve 2.3 Preparation of polymer/antioxidant mix for films 2.4 Soxhlet extraction 2.5 Broadband dielectric analysis of films 2.6 Broadband dielectric analysis of molten samples 3. Results and discussion 3.1 Solubility of SN 1010 in various solvents 3.2 Calibration curve 3.3 Soxhlet extraction 3.4 Broadband dielectric analysis of films 3.5 Broadband dielectric analysis of molten
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Page 1 of 10 5.111 Principles of Chemical Science EXAM # 3 ============================================================================ Write legibly your name and your TA’s name below. Do not open the exam until the start of the exam is announced. The exam is closed notes and closed book. You have 50 minutes (1 academic hour) to complete it. ● Read each part of each problem carefully. ● Write your answers legibly in the corresponding spaces of the attached sheets. ● For problems requiring
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of GSHP and a cooling tower. An artificial neural network (ANN) was used to predict the dynamic variation in fluid temperature of a ground loop. Fannou et al. [20] carried out the modeling and optimization of DXGSHP by using ANN for enhancing the efficiency of the system. They found that in the heat pump
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Abstract Thermal analysis of a solid-liquid phase using cooling curves at various compositions is a method used to obtain the eutectic composition and temperature of naphthalene-biphenyl. The XE was 0.45 and the TE was 310.3K these are slightly different from the theoretical values which are 0.44 and 312K respectively. Results The cooling curves obtained from both groups Group A Group B The table with the mole fraction and the actual masses added. RUN | Group A | Group B | | Naphthalene
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the energy consumed. Absorption chillers are rated in fuel consumption per ton cooling. Electric motor driven chillers are rated in kilowatts per ton cooling. • KW/ton = 12 / EER • KW/ton = 12 / (COP x 3.412) • COP = EER / 3.412 • COP = 12 / (KW/ton) / 3.412 • EER = 12 / KW/ton • EER = COP x 3.412 If a chillers efficiency is rated at 1 KW/ton‚ • COP = 3.5 • EER = 12 Cooling Load in - kW/ton The term kW/ton is commonly used for larger commercial and industrial
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