Thermodynamics is the study of the conversion of energy into work and heat and its relation to macroscopic variables such as temperature,volume and pressure. The book goes from the fundamentals up to several applications in different scientific fields. Better models also have a heat exchanger so the cold stale air being sent outside will cool the fresh warm air on its way in. Michael pauken, phd, is a senior mechanical engineer at nasas jet propulsion laboratory, an operating division of the california institute of technology, where he also teaches courses on thermodynamics and heat transfer. Davis, manager advanced engineering department sundstrand compressors, bristol, virginia introduction air cycle refrigeration has been used in aircraft air conditioning systems for many years. Computer simulation of thermodynamics experiments asee peer. Determine the properties of the air at state point 2 and compare them with those at state point 1. This book illustrates the basic concepts of phenomenological thermodynamics and how to move from theory to practice by considering problems in the fields of thermodynamics and energysystems analysis. Prelab report format 88 memo report format 89 formal report format 90. So that it will reject heat to your home from the surroundings. For these other shapes, a comparison of results with a textbook.
When the system is started, the air in the system has to be released using the bleed valve. Chapter 14 gasvapor mixtures and airconditioning chapter 15 chemical reactions. Thermodynamics deals only with the large scale response of a system which we can observe and measure in experiments. I was part of a team of engineering students that conducted a fundamental analysis on a basic air conditioning system. Then by newtons law of cooling, 1 where k is a positive proportionality constant. Many subjects are handled from an energetics or exergetics angle. First law of thermodynamics lab report 1 wayne state. Air moving over a thermostat would have no affect thermostats dont sweat, but the increase in temperature of the fans motor, would increase the air temperature slightly, causing the air conditioning to work harder. Free research paper on thermodynamics of refrigerator. This article is an attempt to simplify these concepts. Evaluate the performance of a typical twostage air compressor. The future of air conditioning for buildings department of energy. Synopsis you will observe the equivalence of mechanical work done on a thermodynamic system and heat transfer into the same thermodynamic system.
Thermodynamics and heat transfer laboratory manual 11th edition edited by. A ton of refrigeration or air conditioning is the amount of heat needed to melt one ton of ice in 24 hours. Lab report air conditioning free download as pdf file. Air conditioning thermodynamic cycle saylor academy. At the end of the lab session students should be able. Thermodynamics is a branch of physics which deals with the energy and work of a system. Thermodynamics is the subbranch of science that deals with heat and the physical changes it produces in materials. Thermodynamics and heat transfer laboratory manual edition.
Thermodynamics is a branch of physics concerned with heat and temperature and their relation to energy and work. Show full abstract features a novel crawling and grasping mechanism that. One lab report should be submitted for each group of three students. American society of heating, refrigerating, and airconditioning engineers. Classical thermodynamics, statistical thermodynamics, property prediction in thermodynamics, material and products, non equilibrium and thermodynamics in diverse areas. The purpose was to gain a better understanding of the vaporcompression refrigeration cycle. Energy in the form of heat is required to create a phase change and is the basis of most refrigeration and air conditioning. Book thermodynamics and energy systems analysis epfl. Calculations of the thermodynamic properties of refrigerants. Dec 06, 2010 a basic hvac system shows the application of the second law of thermodynamics. May 05, 2015 thermodynamics is a branch of physics which deals with the energy and work of a system. The physics of heat transfer are applied in order to transfer heat away from the portion of a refrigerator or air conditioning that needs to continually cool the air.
Download thermodynamics books of various titles, written by many authors and published by a number of publications for free in pdf format. This is true even if the title states it includes any access cards, study guides, lab manuals, cds, etc. We use cookies to give you the best possible experience. Nov 22, 2010 thermodynamics, as with most concepts in science and physics, is most accurately described using mathematical equations. Erb,september 2001 iii iii preface this manual is prepared for the class of etme 3252 thermodynamics and heat transfer. Saturated vapor enters the compressor at 100c, and saturated liquid leaves the condenser at 280c. Many of the concepts and basic theories which the student learns in the lectures of heat transfer, thermodynamics and fluid mechanics are demonstrated and confirmed through different experiments. A summary impression of the empirical studies in the field is that formal. Yes, these are called laws of thermodynamics establish. The laws of thermodynamics were developed by scientists and used when processes of the industrial revolution were developed. The aim of this experiment is to understand the air conditioning process and the indicators of moisture and heat content. In the front of the lab is a container of compressed gas with approximately 100 psig i.
Yes, it will work in winter to increase the room temperature. An assessment, oak ridge national laboratory report tm5283, tm5515, and tid27120, 1976. Revise the universal gas law learn daltons law of partial pressures apply these laws to mixtures of water vapour and air. Thermodynamics, as with most concepts in science and physics, is most accurately described using mathematical equations. Small scale gas interactions are described by the kinetic theory. Thermodynamics, an engineering approach, eighth edition, covers the basic principles of thermodynamics while presenting a wealth of realworld engineering examples so students get a feel for how thermodynamics is applied in. Perform handson experiments in fluid mechanics, thermodynamics, heat transfer, air conditioning and refrigeration. It makes people feel cooler, by causing evaporation of skin moisture sweat. Me 212 thermodynamics ii chapter 10 examples solution 1 an ideal vaporcompression refrigerant cycle operates at steady state with refrigerant 4a as the working fluid.
R502 a blend of r115 and r22 is the dominant refrigerant used in. Thermodynamics and heat transfer laboratory manual. Applied thermodynamics tutorial 6 airvapour mixtures in this tutorial you will do the following. We spent a few hours in the lab, gathering the necessary measurements.
Ditto for your refrigerator, which is basically an air conditioner with the cooled part enclosed to keep the heat out. However, because it is very difficult to measure the heat given off when solid mg burns in air, in addition to the fact that mg reacts with the abundant amount of nitrogen gas in the air, this experiment uses hesss law to estimate the heat of formation. The odd thing about this book is that statistical mechanics is put in the section of applications. The laws of thermodynamics and air conditioners your best friends during this summer what a fridge and an air conditioner does. This book is geared toward those interested in the engineering and physics of airconditioning and refrigeration devices chillers. Assuming that the water is hotter than the air, it will be cooled. Download citation me 350 air conditioning experiment in keeping with cal polys focus. The engineering staff designs heat exchangers, cooling systems, thermal control systems, temperature sensors, air conditioning, and power systems. Basically what it stated was the simplest form of overunity is an air conditionerheat pump.
Carefully inspect the unit schematic and the cycle diagram. Refrigeration is the achievement of temperatures below that of the local environment. However, simple explanations, although not perfectly accurate, are sufficient to convey the information needed to understand everyday experiences. I completed the air conditioning lab in my thermodynamics course.
A real air conditioner also takes a proportion of fresh air from the outside and cools that before adding it to the inside air. Basic principles consider the surface of a warm water droplet or film in contact with an air stream. Introduction to chemical engineering thermodynamics 8th edition by smith ness abbott swihart solution manual 1 chapters updated apr 03, 2019 11. Btu british thermal unit the amount of heat energy required to raise one pound of water one degree fahrenheit. Cengel, 9780071257718, available at book depository with free delivery worldwide. Perform handson experiments in fluid mechanics, thermodynamics, heat transfer, airconditioning and refrigeration. Presentation format lecture 2 hrswk, lab 2 hrswk, prerequisite. The sensible heat in a heating or cooling process of air heating or cooling capacitycan be expressed as. Suppose that a body with initial temperature t 1 c, is allowed to cool in air which is maintained at a constant temperature t 2 c.
Applied thermodynamics tutorial 6 air vapour mixtures in this tutorial you will do the following. The content of the book has been classified in six sections. Thermodynamics, experimental methods and analysis mech252 academic year. You will measure its weight and then leak the air out. To understand the use of the fourier rate equation in determining rate of the heat flow through solid material for one dimensional, steady flow heat. The main purpose of refrigeration is thermal conditioning e.
All experiments conducted in this lab combine elements of theory and practice. Cheggs thermodynamics experts can provide answers and solutions to virtually any thermodynamics problem, often in as little as 2 hours. Free thermodynamics books download ebooks online textbooks. Lab report for experiment, typed, including introduction, methods, results and conclusion.
Thousands of thermodynamics guided textbook solutions, and expert thermodynamics answers when you need them. By radiation this effect is likely to be very small at normal conditions and may be neglected. Pdf a manual for mech 3355 thermodynamics a n d heat. These books are used by students of top universities, institutes and colleges. Classical thermodynamics, statistical thermodynamics, property prediction in thermodynamics, material and products, non equilibrium and thermodynamics in. An air conditioner or a heat pump, which is a reversible air conditioner, is a device for heat transfer. This is a transfer of heat energy out of the refrigerant. In case of fire, exit the lab to the equipment that uses water or air as the working hallway. The most common way to change the function of the air conditioner is to reversed the function of the air conditioner. If you want a physics presentation of heat and thermodynamics, this book is not a bad read with if you do not mind the older style. Experiment 8 the thermodynamics of the solubility of borax. There are many similarities among, and overlap between, the studies of thermodynamics and fluid dynamics, and the team at flometrics excels in this area. Engineering thermodynamics and heat transfer experiment 2.
The thermodynamics of the solubility of borax 1 experiment 8 the thermodynamics of the solubility of borax prelab assignment before coming to lab. These models are easily implemented in the field or laboratory. Mech 24 43 applied thermodynamics and hvac students will study topics in heat transfer, heat exchangers, heat transfer systems, refrigeration systems, psychrometry, and hvac heating, ventilation, and air conditioning processes. Procedure the compressor used in this experiment is an integersolrand type 30 twostage air compressor. It was born in the 19th century as scientists were first discovering how to build and operate steam engines. Thermodynamics and design principles of refrigeration systems. Chemical thermodynamics introduction the enthalpy of formation of solid mgo is what this experiment wishes to determine. How air conditioners work how air conditioners work air conditioning operates based on the principles of phase conversion, which is the transformation of a material from one state or phase of matter to another, such as when a material changes from a liquid to a gas. For example, if 1 kilowatt of electrical power is placed into the compressor, 2 kilowatts of heat will be transferred from plate to plate, due to thermodynamics. After the engine is running for a sufficient time approx.
Objectives perform and measure the mechanical work done on a. Thermodynamics of airwatercycle airconditioning systems. A basic hvac system shows the application of the second law of thermodynamics. Objectives perform and measure the mechanical work done on a thermodynamic. Chapter basic thermodynamics applied thermodynamics lab renewable energy trainers power engines and machines internal combustion engines refrigeration and air conditioning trainers heating and ventilation in buildings. This experiment demonstrates how an air condition works and the application of psychrometric chart to read the properties of air for each section. Download citation me 350 air conditioning experiment in keeping with cal polys. You will then measure its weight again to determine the weight of air that was in the tank initially. R22 is used in window air conditioners, heat pumps, air conditioners of commercial buildings, and large industrial refrigeration systems, and offers strong competition to ammonia. Small scale gas interactions are described by the kinetic theory of gases. Wang published two air conditioning books and many papers.
May 18, 2004 basically what it stated was the simplest form of overunity is an air conditionerheat pump. The latent heat due to moisture in the air can be expressed as. Since the compressed refrigerant is hotter than the air blowing across the condenser, the heat will flow to the cooler air. Lab report air conditioning refrigeration air conditioning scribd.
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