...For the new office building, I am designing for a client who is a speculative building developer. With this factor in mind, I must design and develop this building at the lowest possible price with a low first cost which initially maximizes the profit of this building. This office building that I am developing is a 10 story office building. When getting into larger HVAC system applications, one must start looking at split-system units. A split-system air conditioner splits the hot coils from the cold coils of the system. The cold coils, consisting of the expansion valve and the cold coil, is generally placed into a furnace or an air handler. The air handler blows air through the coil and routes the air throughout the building using a series of ducts. The hot side, known as the condensing unit, lives outside the building. Inside the hot coil is a fan, to blow air through the coil, along with a weather-resistant compressor and a control logic to manage the temperature and pressure going throughout the coil. This approach has evolved over the years because of its low-cost and also it normally results in reduced noise inside the house. However, there is no difference between a split-system and a window air conditioner other than the fact that the hot and cold sides are split apart and the capacity is higher, making the coils and compressor larger which eventually makes the selection of a split system unit a better decision. When dealing with large buildings such as warehouses, large...
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...Electrical Components of Shop Unit Electrical for HVACs Southern Technical College Abstract A working overview of our Goodman Package Units located in the lab. The overview will show comprehensive knowledge of the electrical and electronic components associated with our lab equipment. Electrical for HVACs The electrical systems of an air conditioning unit are easier to understand if a technician breaks the complex schematic into individual circuits. This will provide an efficient method for diagnosing and repairing systems. The narrative covers the major loads in the system which is the compressor, compressor fan, and evaporator fan. On heat pump units, when the room thermostat set to the cooling mode, 24Vac is supplied to terminal “O” of the defrost board and to the reversing valve. As long as the thermostat is set for cooling, the reversing valve will be in the energized position for cooling. The constant 24Vac at the “O” terminal of the defrost board signals the board that the unit is in cooling. On a demand for cooling, the room thermostat energizes “Y” and “G”. This supplies 24Vac to terminal “Y” of the defrost board, the compressor contactor and the “G” terminal in the unit. The compressor starts in the cooling mode and the indoor blower motor starts. The contactor closes and turns on the compressor and condenser fan. When the cooling demand is satisfied, the room thermostat removes the 24Vac from “Y” and “G”. The contactor opens and turns off the compressor...
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...Lowering the costs of heating and cooling of our troops is a primary goal for our military. However, they do not want to just simply lower the cost of heating and cooling by making our troops have to deal with the hot days and sometimes cold nights. The military is in the process of testing new systems that will actually make the heating and cooling better as well as cut expenses. For example, they are working to develop solar covers constructed from highly porous fabric. These solar covers will help to block the harsh solar loading found in the desert. The porous fabric will help to keep a good airflow and reduce heat buildup. Another possible idea is to augment the shelters with a series of internal liners. These liners will help to reduce the HVAC requirements and therefore lower expenses. The ultimate goal is to have self-sustaining shelter. Frank E. Kostka, director of shelter technology, engineering and fabrication at the U.S. Army Natick Soldier Research Development and Engineering Center (RDEC), said that all...
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...HVAC Design for Cleanroom Facilities Course No: M06-008 Credit: 6 PDH A. Bhatia Continuing Education and Development, Inc. 9 Greyridge Farm Court Stony Point, NY 10980 P: (877) 322-5800 F: (877) 322-4774 info@cedengineering.com HVAC FOR CLEANROOM FACILITIES Indoor air quality is of paramount importance for human comfort and health. Air, whether it is from outside or re-circulated within the area, acts as a vehicle for airborne contaminants brought in by the movement of people, material, etc. Since many of these airborne contaminants are harmful either to products or people working in such environments their removal is necessary on medical, legal, social or financial grounds. Cleanrooms are specially constructed, environmentally controlled enclosed spaces where the concentration of airborne particles (contaminants) is kept within specified limits. In industry, cleanrooms are used in the manufacturing of electronic hardware such as integrated circuits (ICs) and hard drives. In biotechnology and medicine, cleanrooms are used when it is necessary to ensure an environment free of bacteria, viruses, or other pathogens. Four fundamental rules apply to cleanrooms. 1) First, contaminants must not be introduced into the controlled environment from the outside. 2) Second, the apparatus or equipment within the controlled environment must not generate or otherwise give rise to contaminants (for example as a result of friction, chemical reactions, or biological processes). 3) Third...
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...Office Use Only: CORI sent _________ CORI rec’d: ________Ck.# _______Appl.# _______ Lic.# _______ Init.______ BOARD OF EXAMINERS OF SHEET METAL WORKERS APPRENTICE SHEET METAL WORKER LICENSE APPLICATION 1) Application Date: ___ ___ - ___ ___ - ___ ___ ___ ___ 2) Applicant’s Full Name: ______________________________________________________________________________ Last Name First Name Middle Name Suffix 3) Maiden Name, Former Name, Also Known As: ______________________________________________________________________________ Other Last Name Other First Name Other Middle Name 4) Gender : Male ___ Female ___ Prefer Not to Answer ___ 5) Date of Birth : ___ ___ - ___ ___ - ___ ___ ___ ___ 6) Mailing Address: No. City/Town Street Apt. # State Zip Code 7) E-mail Address: _______________________________________________________________ Please note: EMAIL is the primary means of contact for routine correspondences during the application process. 8) Preferred Communication: Email ___ Mail ___ 9) Telephone : Primary ___ ___ ___ - ___ ___ ___ - ___ ___ ___ ___ Ext. ___ ___ ___ ___ Mobile ___ ___ ___ - ___ ___ ___ - ___ ___ ___ ___ Other ___ ___ ___ - ___ ___ ___ - ___ ___ ___ ___ Ext. ___ ___ ___ ___ 10) Fax : Fax No. ___ ___ ___ - ___ ___ ___ - ___ ___ ___ ___ Ext. ___ ___ ___ ___ 11) Have you completed training from a Board approved sheet metal program or Board approved vocational school? If yes, please complete...
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...| Geothermal power has many local and global benefits. | Slide 65 of 122, © 2000 Geothermal Education Office | | | http://geothermal.marin.org/geopresentation/sld065.htm Geothermal energy offers those of us who live on the earth the ability to tap into the earth for a new, renewable source of energy. Once discovered, it was a revolutionary solution that quickly spread from one end of the planet to the other. But as with any other solution, if you are considering geothermal energy for your home, you’ll want to take a look at the advantages and disadvantages it produces. So, to help you out, we looked around to discover some answers to your questions - “What are the advantages and disadvantages of geothermal energy?” The Advantages of Geothermal Energy When it comes to the advantages of geothermal energy, they are numerous. To give you an idea of just how many there are, be sure to check out this list: * First and foremost, geothermal energy is renewable, meaning that as long as we don’t pump too much cold water into the earth -cooling off the hot rocks- the energy will just keep on coming! * Secondly, geothermal energy doesn’t produce pollution, and at the same time, it doesn’t contribute to the greenhouse effect! * The power stations for geothermal energy don’t take up a whole bunch of room, and because of this, they tend to have less of an impact on the surrounding environment. * Because geothermal energy is energy in and of itself, no...
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...{HVAC: Looking for the Right Device.|Appropriately Choosing HVAC.|Do You Need a Functioning HVAC?} {If you are planning to build your own house, getting a dry air system will make a difference.|You would certainly want to install a dry air system inside your household if you want to be comfortable in your entire stay there.|A dry air system is very essential to be installed at your home if you want to live inside it very comfortably.} {You will get multiple benefits that is why other people also want its installation.|You can never count the benefits that right HVAC could offer if you would give way on its installation.|You will also reap a lot of advantages if you would push through your plan.} {Unfortunately, a lot of people have failed...
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...the earth (geo). Although the name is quite simple, it provides us with extraordinary capabilities. Geothermal Energy It is widely accepted that the center of the earth contains magma, a substance of remarkable temperature and pressure. Suffice it to say there is a phenomenal amount of thermal energy deep in the earth’s surface that, if harnessed, would be able to provide all the energy our world could use for a long time. This is not a source of energy that will completely deplete, as the sun provides energy as does radioactive decay of materials already deep within the earth. Geothermal HVAC At the core of any construction project, residential, commercial, or industrial, is the HVAC System. For centuries people have utilized processes to make their living, working, and recreational surroundings more comfortable through heat transfer and temperature and humidity control. Geothermal HVAC is the latest and greatest technology being implemented throughout building construction worldwide. It is among the highest efficiency heating and cooling equipment on the market with one of the lowest life time costs. Geothermal Energy Pros and Cons Pros: • There is an enormous amount of thermal...
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...Abouelhassan Kuwait City, Kuwait Mobile: (+965) 600 834 45. Email: m.m.g@live.co.uk PERSONAL STATEMENT I’m an adaptable and innovative qualified Mechanical Engineer with experience creating cost efficient HVAC designs, and Plumbing Equipment sales engineer I’m looking to develop my expertise in new concept development within a forward thinking company. Date of Birth 10th of oct. 1989 Passport No. A14116639 Marital Status Single KEY SKILLS Technical Skills * AutoCAD (2D). * AutoCAD (3D). * Autodesk Inventor. * HAP. * MS Office. * Adobe PhotoShop. * Automation Studio. Certificates * PMP (Project Management Professionals) – 48 attending hours. * Sales Training at WILO Pumps ME. * Training in MEDOM Company for Oil industry. * Training in Hydraulic System for Aeroplanes – Cairo Airport Workshops. * Technical Training at POTAGLAS Corporation. Memberships * Arab engineers association. * Egyptian Engineers Syndicate. * Kuwait Engineers Syndicate. EDUCATION * SBS Swiss Business School Master of Business Administration (M.B.A.) 2013 – 2015 * Alexandria University BSc Mechanical Engineering 2006 - 2011 Graduation project HVAC (Central Air Conditioner for sport Arenas) 2011 EMPLOYMENT Sales Engineer Al-Madadd Trading and Contracting Company | Hawally, Kuwait 04.2012 > Current Al-Madadd Co. is one of the biggest supplier...
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...TO: John Smith, Construction Manager at Greenfield Community College FROM: Thom Jones, Sales Manager SUBJECT: HVAC relocation DATE: April 6, 2014 Dear Mr. Smith: Our company is honored to have the opportunity to work with you on your recent project. We at EBG, are pleased that you have chosen our services to provide Greenfield Community College with an energy efficient and cost-effective HVAC system. Our HVAC systems are the best in the nation and have been engineered to fit your needs. Your request for a change in the location of the venting apparatus was brought to my attention. Our design engineer and the company’s lawyer have reviewed your request for the changes to be made to the initial design and have submitted their recommendations. However, after carefully examining all the aspects of your request, we will be unable to accommodate your request for the venting apparatus change at this time due to the current zoning restrictions enforced by the city in this area. Please note that even though this particular design cannot be accommodated, our engineers and staff are willing to work with you to reevaluate a design that is suitable and meets the city’s requirement. We will consider this proposal as a contract addendum that will be free of cost. As you are our valued customer we look forward to finding amicable solutions to whatever issues you may have with your projects. We greatly appreciate the opportunity to work with you. Please feel...
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...E-BUSINESS: Company name: Air Central HVAC; this company started about a year ago. Before starting this business the owners (a husband and wife team) stated they did a lot of research and reading before launching their business. A1: The public needs a business with the knowledge and integrity to service their heating and air systems. The company’s mission statement is to provide the highest quality service with integrity as a provider for residential and commercial customers. This company initially did a basic website to start, now they are interested in updating the website and make it more appealing to viewers. The website will also serve as a source for gathering information regarding what the customer wants and will help compete with other competitors as well. Additionally, the website will offer another way to get in touch with us besides calling. The advantages for going online it allows for a broad access to varying populations, especially in this technologic age. One of the challenges for online is how consuming it can be to maintain the website, to make sure pricing is updated, adding any specials or promotions for new or existing customers, and can be costly. A2: Current online competitor assessment a. The trends in HVAC industry depend largely on the economy. The economy influences whether a customer is going to repair or replace problem and in some cases ignore the problem until there is no other choice but to take care of the problem. Another trend...
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...E-BUSINESS: Company name: Air Central HVAC; this company started about a year ago. Before starting this business the owners (a husband and wife team) stated they did a lot of research and reading before launching their business. A1: The public needs a business with the knowledge and integrity to service their heating and air systems. The company’s mission statement is to provide the highest quality service with integrity as a provider for residential and commercial customers. This company initially did a basic website to start, now they are interested in updating the website and make it more appealing to viewers. The website will also serve as a source for gathering information regarding what the customer wants and will help compete with other competitors as well. Additionally, the website will offer another way to get in touch with us besides calling. The advantages for going online it allows for a broad access to varying populations, especially in this technologic age. One of the challenges for online is how consuming it can be to maintain the website, to make sure pricing is updated, adding any specials or promotions for new or existing customers, and can be costly. A2: Current online competitor assessment a. The trends in HVAC industry depend largely on the economy. The economy influences whether a customer is going to repair or replace problem and in some cases ignore the problem until there is no other choice but to take care of the problem. Another...
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...from Lennox International and other creditable financial sources. As the manager of a small investment company we are carefully considering the investment into Lennox International. We are going to examine the current status of Lennox International and come up with a conclusion based on performance to decide whether or not to invest into the company. Our investment firm primarily looks to invest into a company to turn a quick profit, we will take a marginal amount of risk but nothing to steep, and we tend to stay away from emerging markets and a superior amount of risk. Lennox International (NYSE:LII) Lennox International is a manufacturer in the heating, ventilation, and air conditioning (HVAC) industry. Lennox International focuses on four main areas; residential heating and cooling, commercial heating and cooling, service experts, and refrigeration. Lennox manufactures under other brand names such as: Armstrong Air, Ducane, Aire-Flo, AirEase, Concord, Magi-Pak, and ADP. Their product portfolio is quite wide and offers an array of choices with Lennox brand, the flagship brand. Lennox International is known for their residential air conditioners and furnace products, some may associate Lennox with the commercials seen on TV featuring “Dave Lennox” Dave Lennox is the face associated with Lennox, who was the founder of Lennox back...
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...research journal 2013 / VOL 05.01 www.perkinswill.com SPECIAL ISSUE: NATIONAL SCIENCE FOUNDATION WORKSHOP ARCHITECTURE AND ENGINEERING OF SUSTAINABLE BUILDINGS Current Trends in Low-Energy HVAC Design 04. CURRENT TRENDS IN LOW-ENERGY HVAC DESIGN Robert L. Tazelaar, PE, LEED AP, robert.tazelaar@arup.com ABSTRACT The objective of this paper is to provide some insight into how HVAC systems are changing to meet the drive towards lower energy usage. The paper is primarily focusing on trends, observed by the author in designs which have been highlighted in research journals and project work. A case study is provided which highlights how some of the trends have been implemented on a current design. KEYWORDS: Heating, Ventilation and Air Conditioning (HVAC), Dedicated Outside Air Systems (DOAS), Ventilation decoupling, Variable Air Volume (VAV) 1.0 INTRODUCTION Throughout the 20th century, trends in HVAC design have been determined largely by technological advances and energy costs. Engineers have always sought to find new ways to ensure occupant comfort, but the level of attention devoted to finding innovative ways to reduce energy use has fluctuated over the last few decades. When energy costs have risen, energy efficiency has become a priority; when they have been low, it has been less of a design driver. This article identifies several trends which are being used to reduce energy use in commercial buildings. The trends to be considered...
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...The History of Thermostats By Spring Quarter 2014 THE HISTORY OF THERMOSTATS Definition of a thermostat; A thermostat is a component of a control system which senses the temperature of an area so the area's temperature is maintained near a desired setpoint. The name is derived from the Greek words thermos or "hot" and statos or "a standing". Cornelius Drebble (1572-1634), a Dutch engraver and glassworker, invented the first thermostat in the early 1600’s, which was the first the automatic temperature control device. The thermostat was spawned from an elaborate toy he designed which operated on the basis of changes in the atmospheric pressure and temperature. The thermostat was created for a chicken and duck egg incubator and was the first mercury device that would hold the temperature constant. Around the same time frame, Drebble also invented the first self-regulating oven damper that was also mercury controlled. As the temperature went up, the damper would be closed by a primitive mercury switch. When the temperature cooled, the mercury would contract and open the damper adding oxygen to increase the fire. Before thermostats, the only way we could control the temperature of a home was to manually open or close the fireplace damper/ flu or open a window to regulate heat. Albert Butz, (1849-1905) was a Swiss born inventor, businessman and the father of the modern automated control industry, made a resemblance of today’s thermostat in 1885. It had an electric...
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