Heating, Ventilating, and. Air Conditioning. Analysis and Design. Sixth Edition. Faye C. McQuiston. Oklahoma State University. Jerald D. Parker. Oklahoma. Heating Ventilating and Air Conditioning Analysis and Design pdf Contents 1. Introduction 2. Air-Conditioning Systems 3. Moist Air Properties. Heating Ventilating and Air-conditioning Analysis and Design (6th Ed.) - Ebook download as PDF File .pdf) or read book online.
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Request PDF on ResearchGate | On Feb 17, , Faye C McQuiston and others published Heating, ventilating, and air conditioning: analysis and design. Heating, Ventilating, and Air Conditioning Analysis and Design rialadhamssubsca.ml 6 /15 Heating, Ventilating, and Air Conditioning Analysis and. [PDF] Edition Heating, Ventilating and Air Conditioning: Analysis and Design PDF books; 2. Book Details Author: Faye C. McQuiston,Jerald D.
Burnham Corporation - Manufacturers of residential and commercial gas and oil boilers, indirect water heaters, zone controls, cast iron baseboard, radiators , and radiant heat systems. Copper Tube Handbook - a production of the Copper Development Association , a trade group promoting the copper and brass industries.
It explains the difference between Type K, Type L and Type M copper tube K has thicker walls than L and L has thicker walls than M , offers design and installation data, and it contains instructions for soldering and brazing copper joints.
Fantech - manufacturers of ventilation equipment including, in-line duct fans, air screens, roof and wall mount exhaust fans, vent lights, grills, roof caps, louvered shutters, controls and switches, dampers and other related products. Lennox Industries - founded in "when Dave Lennox designed the first riveted steel furnace in Marshalltown, IA" this company manufactures residential and commercial air cleaners, furnaces, heat pumps, air conditioners, humidifiers, air exchangers and other HVAC products.
Mestek, Inc. Specific product lines include OmegaFlex flexible gas piping and SpacePak high velocity central air conditioning systems.
Nuheat Industries Ltd. Radiantec Company - This Vermont radiant heating company has a very informative Web site that promotes the use of underfloor heat systems. They produce water heaters, central warm air furnaces, air conditioners, heat pumps, swimming pool heaters and commercial boilers.
Spruce Environmental Technologies Inc. Originally designed for use in sub-slab radon mitigation systems, Spruce inline fans are now used in bathroom and kitchen exhaust systems, dryer vent duct boosting, moisture removal, fresh air injection, make-up air supply, general ventilation and other indoor air quality applications.
The airflow direction may be visualized by smoke. Comparison of mechanical and natural ventilation 2. Mechanical ventilation If well designed, installed and maintained, there are a number of advantages to a mechanical system.
Mechanical ventilation systems are considered to be reliable in delivering the designed flow rate, regardless of the impacts of variable wind and ambient temperature. As mechanical ventilation can be integrated easily into air-conditioning, the indoor air temperature and humidity can also be controlled. Filtration systems can be installed in mechanical ventilation so that harmful microorganisms, particulates, gases, odours and vapours can be removed. The airflow path in mechanical ventilation systems can be controlled, for instance allowing the air to flow from areas where there is a source e.
Mechanical ventilation can work everywhere when electricity is available. However, mechanical ventilation systems also have problems.
Mechanical ventilation systems often do not work as expected, and normal operation may be interrupted for numerous reasons, including equipment failure, utility service interruption, poor design, poor maintenance or incorrect management Dragan, If the system services a critical facility, and there is a need for continuous operation, all the equipment may have to be backed up — which can be expensive and unsustainable.
Installation and particularly maintenance costs for the operation of a mechanicalventilation system may be very high. If a mechanical system cannot be properly installed or maintained due to shortage of funds, its performance will be compromised.
Because of these problems, mechanical ventilation systems may result in the spread of infectious diseases through health-care facilities, instead of being an important tool for infection control. Natural ventilation If well installed and maintained, there are several advantages of a natural ventilation system, compared with mechanical ventilation systems.
Natural ventilation can generally provide a high ventilation rate more economically, due to the use of natural forces and large openings.
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Natural ventilation can be more energy efficient, particularly if heating is not required. Well-designed natural ventilation could be used to access higher levels of daylight. From a technology point of view, natural ventilation may be classified into simple natural ventilation systems and high-tech natural ventilation systems. The latter are computer-controlled, and may be assisted by mechanical ventilation systems i.
High-tech natural ventilation may have the same limitations as mechanical ventilation systems; however, it also has the benefits of both mechanical and natural ventilation systems. If properly designed, natural ventilation can be reliable, particularly when combined with a mechanical system using the hybrid mixed-mode ventilation principle, although some of these modern natural ventilation systems may be more expensive to construct and design than mechanical systems.
Heating Ventilating and Air Conditioning Analysis and Design Solutions Manual
In general, the advantage of natural ventilation is its ability to provide a very high air-change rate at low cost, with a very simple system. Although the air-change rate can vary significantly, buildings with modern natural ventilation systems that are designed and operated properly can achieve very high air-change rates by natural forces, which can greatly exceed minimum ventilation requirements.
There are a number of drawbacks to a natural ventilation system. Natural ventilation is variable and depends on outside climatic conditions relative to the indoor environment.
The two driving forces that generate the airflow rate i. Natural ventilation may be difficult to control, with airflow being uncomfortably high in some locations and stagnant in others. There is a possibility of having a low air-change rate during certain unfavourable climate conditions.
There can be difficulty in controlling the airflow direction due to the absence of a well-sustained negative pressure; contamination of corridors and adjacent rooms is therefore a risk.
Natural ventilation precludes the use of particulate filters. Climate, security and cultural criteria may dictate that windows and vents remain closed; in these circumstances, ventilation rates may be much lower. Natural ventilation only works when natural forces are available; when a high ventilation rate is required, the requirement for the availability of natural forces is also correspondingly high. Natural ventilation systems often do not work as expected, and normal operation may be interrupted for numerous reasons, including windows or doors not open, equipment failure if it is a high-tech system , utility service interruption if it is a high-tech system , poor design, poor maintenance or incorrect management.
Although the maintenance cost of simple natural ventilation systems can be very low, if a natural ventilation system cannot be installed properly or maintained due to a shortage of funds, its performance can be compromised, causing an increase in the risk of the transmission of airborne pathogens. These difficulties can be overcome, for example, by using a better design or hybrid mixed-mode ventilation.
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Do higher interest rates make this project more feasible or less feasible? In much of the HVAC industry, PI control has been referred to as propor- tional with reset, but the correct term proportional plus integral is becoming more widely used.
Use Eq. The energy and moisture addition or removal, the ventilation, and the removal of pollu- tants can be accomplished by the equipment in the mechanical room. Does the system provide sufficient ventilation rate as required?